./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_396ae41b-6dd6-4bed-b905-2e25cc47ed27/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:44:52,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:44:52,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:44:52,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:44:52,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:44:52,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:44:52,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:44:52,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:44:52,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:44:52,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:44:52,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:44:52,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:44:52,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:44:52,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:44:52,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:44:52,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:44:52,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:44:52,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:44:52,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:44:52,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:44:52,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:44:52,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:44:52,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:44:52,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:44:52,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:44:52,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:44:52,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:44:52,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:44:52,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:44:52,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:44:52,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:44:52,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:44:52,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:44:52,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:44:52,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:44:52,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:44:52,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:44:52,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:44:52,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:44:52,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:44:52,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:44:52,896 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 10:44:52,919 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:44:52,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:44:52,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:44:52,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:44:52,920 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:44:52,921 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:44:52,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:44:52,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:44:52,922 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:44:52,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:44:52,922 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:44:52,922 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:44:52,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:44:52,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:44:52,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:44:52,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:44:52,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:44:52,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:44:52,924 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 10:44:52,924 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:44:52,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:44:52,924 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:44:52,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:44:52,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:44:52,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:44:52,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:44:52,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:44:52,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:44:52,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:44:52,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:44:52,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:44:52,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:44:52,927 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:44:52,927 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:44:52,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:44:52,927 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_396ae41b-6dd6-4bed-b905-2e25cc47ed27/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 [2022-11-20 10:44:53,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:44:53,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:44:53,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:44:53,203 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:44:53,204 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:44:53,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2022-11-20 10:44:56,187 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:44:56,389 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:44:56,389 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2022-11-20 10:44:56,401 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/bin/uautomizer-ug76WZFUDN/data/71257ca48/2671ac1eccae4758b603593572c838d1/FLAG7f9116c89 [2022-11-20 10:44:56,419 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/bin/uautomizer-ug76WZFUDN/data/71257ca48/2671ac1eccae4758b603593572c838d1 [2022-11-20 10:44:56,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:44:56,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:44:56,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:44:56,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:44:56,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:44:56,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:44:56" (1/1) ... [2022-11-20 10:44:56,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8ee64f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:56, skipping insertion in model container [2022-11-20 10:44:56,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:44:56" (1/1) ... [2022-11-20 10:44:56,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:44:56,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:44:56,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c[2865,2878] [2022-11-20 10:44:56,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:44:56,791 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:44:56,859 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c[2865,2878] [2022-11-20 10:44:56,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:44:56,889 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:44:56,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:56 WrapperNode [2022-11-20 10:44:56,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:44:56,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:44:56,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:44:56,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:44:56,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:56" (1/1) ... [2022-11-20 10:44:56,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:56" (1/1) ... [2022-11-20 10:44:56,979 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 22, statements flattened = 437 [2022-11-20 10:44:56,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:44:56,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:44:56,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:44:56,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:44:56,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:56" (1/1) ... [2022-11-20 10:44:56,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:56" (1/1) ... [2022-11-20 10:44:57,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:56" (1/1) ... [2022-11-20 10:44:57,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:56" (1/1) ... [2022-11-20 10:44:57,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:56" (1/1) ... [2022-11-20 10:44:57,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:56" (1/1) ... [2022-11-20 10:44:57,059 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:56" (1/1) ... [2022-11-20 10:44:57,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:56" (1/1) ... [2022-11-20 10:44:57,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:44:57,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:44:57,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:44:57,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:44:57,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:56" (1/1) ... [2022-11-20 10:44:57,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:44:57,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:44:57,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:44:57,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396ae41b-6dd6-4bed-b905-2e25cc47ed27/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:44:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:44:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:44:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:44:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:44:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 10:44:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 10:44:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 10:44:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 10:44:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 10:44:57,155 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 10:44:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:44:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 10:44:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 10:44:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:44:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:44:57,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:44:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:44:57,158 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:44:57,313 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:44:57,316 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:44:58,206 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:44:58,398 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:44:58,398 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-20 10:44:58,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:44:58 BoogieIcfgContainer [2022-11-20 10:44:58,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:44:58,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:44:58,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:44:58,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:44:58,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:44:56" (1/3) ... [2022-11-20 10:44:58,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a51dcea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:44:58, skipping insertion in model container [2022-11-20 10:44:58,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:56" (2/3) ... [2022-11-20 10:44:58,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a51dcea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:44:58, skipping insertion in model container [2022-11-20 10:44:58,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:44:58" (3/3) ... [2022-11-20 10:44:58,418 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product.wvr.c [2022-11-20 10:44:58,430 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:44:58,440 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:44:58,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-11-20 10:44:58,441 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:44:58,608 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 10:44:58,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 412 places, 428 transitions, 880 flow [2022-11-20 10:44:58,922 INFO L130 PetriNetUnfolder]: 26/425 cut-off events. [2022-11-20 10:44:58,923 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 10:44:58,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 425 events. 26/425 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 803 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 313. Up to 2 conditions per place. [2022-11-20 10:44:58,933 INFO L82 GeneralOperation]: Start removeDead. Operand has 412 places, 428 transitions, 880 flow [2022-11-20 10:44:58,947 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 390 places, 405 transitions, 828 flow [2022-11-20 10:44:58,964 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:44:58,971 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;@16df6c90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:44:58,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2022-11-20 10:44:58,978 INFO L130 PetriNetUnfolder]: 0/26 cut-off events. [2022-11-20 10:44:58,979 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:44:58,979 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:44:58,980 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] [2022-11-20 10:44:58,981 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 10:44:58,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:58,988 INFO L85 PathProgramCache]: Analyzing trace with hash -253943540, now seen corresponding path program 1 times [2022-11-20 10:44:58,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:58,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628792294] [2022-11-20 10:44:58,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:59,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:59,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:59,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:59,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628792294] [2022-11-20 10:44:59,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628792294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:59,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:44:59,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:44:59,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283892921] [2022-11-20 10:44:59,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:59,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:44:59,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:59,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:44:59,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:44:59,340 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 428 [2022-11-20 10:44:59,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 405 transitions, 828 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:59,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:44:59,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 428 [2022-11-20 10:44:59,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:44:59,992 INFO L130 PetriNetUnfolder]: 173/1532 cut-off events. [2022-11-20 10:44:59,993 INFO L131 PetriNetUnfolder]: For 106/118 co-relation queries the response was YES. [2022-11-20 10:45:00,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1827 conditions, 1532 events. 173/1532 cut-off events. For 106/118 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10246 event pairs, 114 based on Foata normal form. 124/1344 useless extension candidates. Maximal degree in co-relation 1075. Up to 232 conditions per place. [2022-11-20 10:45:00,016 INFO L137 encePairwiseOnDemand]: 397/428 looper letters, 24 selfloop transitions, 2 changer transitions 5/376 dead transitions. [2022-11-20 10:45:00,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 376 transitions, 822 flow [2022-11-20 10:45:00,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:00,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:45:00,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1168 transitions. [2022-11-20 10:45:00,040 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9096573208722741 [2022-11-20 10:45:00,041 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1168 transitions. [2022-11-20 10:45:00,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1168 transitions. [2022-11-20 10:45:00,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:00,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1168 transitions. [2022-11-20 10:45:00,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:00,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:00,068 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:00,070 INFO L175 Difference]: Start difference. First operand has 390 places, 405 transitions, 828 flow. Second operand 3 states and 1168 transitions. [2022-11-20 10:45:00,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 376 transitions, 822 flow [2022-11-20 10:45:00,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 376 transitions, 810 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 10:45:00,087 INFO L231 Difference]: Finished difference. Result has 373 places, 371 transitions, 752 flow [2022-11-20 10:45:00,090 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=752, PETRI_PLACES=373, PETRI_TRANSITIONS=371} [2022-11-20 10:45:00,098 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -17 predicate places. [2022-11-20 10:45:00,098 INFO L495 AbstractCegarLoop]: Abstraction has has 373 places, 371 transitions, 752 flow [2022-11-20 10:45:00,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:00,100 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:00,100 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:00,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:45:00,100 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 10:45:00,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:00,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1173953820, now seen corresponding path program 1 times [2022-11-20 10:45:00,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:00,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332940210] [2022-11-20 10:45:00,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:00,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:00,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:00,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:00,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332940210] [2022-11-20 10:45:00,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332940210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:00,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:00,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:45:00,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599216805] [2022-11-20 10:45:00,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:00,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:00,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:00,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:00,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:00,203 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 428 [2022-11-20 10:45:00,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 371 transitions, 752 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:00,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:00,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 428 [2022-11-20 10:45:00,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:00,639 INFO L130 PetriNetUnfolder]: 139/1370 cut-off events. [2022-11-20 10:45:00,639 INFO L131 PetriNetUnfolder]: For 16/33 co-relation queries the response was YES. [2022-11-20 10:45:00,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1592 conditions, 1370 events. 139/1370 cut-off events. For 16/33 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8538 event pairs, 90 based on Foata normal form. 0/1108 useless extension candidates. Maximal degree in co-relation 1557. Up to 200 conditions per place. [2022-11-20 10:45:00,661 INFO L137 encePairwiseOnDemand]: 425/428 looper letters, 24 selfloop transitions, 2 changer transitions 0/370 dead transitions. [2022-11-20 10:45:00,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 370 transitions, 802 flow [2022-11-20 10:45:00,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:00,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:45:00,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1140 transitions. [2022-11-20 10:45:00,665 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8878504672897196 [2022-11-20 10:45:00,665 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1140 transitions. [2022-11-20 10:45:00,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1140 transitions. [2022-11-20 10:45:00,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:00,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1140 transitions. [2022-11-20 10:45:00,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.0) internal successors, (1140), 3 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:00,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:00,674 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:00,674 INFO L175 Difference]: Start difference. First operand has 373 places, 371 transitions, 752 flow. Second operand 3 states and 1140 transitions. [2022-11-20 10:45:00,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 370 transitions, 802 flow [2022-11-20 10:45:00,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 370 transitions, 798 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:45:00,683 INFO L231 Difference]: Finished difference. Result has 367 places, 370 transitions, 750 flow [2022-11-20 10:45:00,683 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=750, PETRI_PLACES=367, PETRI_TRANSITIONS=370} [2022-11-20 10:45:00,684 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -23 predicate places. [2022-11-20 10:45:00,685 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 370 transitions, 750 flow [2022-11-20 10:45:00,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:00,686 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:00,686 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] [2022-11-20 10:45:00,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:45:00,686 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 10:45:00,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:00,687 INFO L85 PathProgramCache]: Analyzing trace with hash -910761905, now seen corresponding path program 1 times [2022-11-20 10:45:00,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:00,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182676769] [2022-11-20 10:45:00,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:00,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:00,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:00,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:00,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182676769] [2022-11-20 10:45:00,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182676769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:00,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:00,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:45:00,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992217117] [2022-11-20 10:45:00,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:00,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:00,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:00,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:00,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:00,751 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 428 [2022-11-20 10:45:00,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 370 transitions, 750 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:00,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:00,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 428 [2022-11-20 10:45:00,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:01,594 INFO L130 PetriNetUnfolder]: 449/3369 cut-off events. [2022-11-20 10:45:01,595 INFO L131 PetriNetUnfolder]: For 62/66 co-relation queries the response was YES. [2022-11-20 10:45:01,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3984 conditions, 3369 events. 449/3369 cut-off events. For 62/66 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 29114 event pairs, 264 based on Foata normal form. 0/2694 useless extension candidates. Maximal degree in co-relation 3942. Up to 578 conditions per place. [2022-11-20 10:45:01,644 INFO L137 encePairwiseOnDemand]: 425/428 looper letters, 24 selfloop transitions, 2 changer transitions 0/369 dead transitions. [2022-11-20 10:45:01,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 369 transitions, 800 flow [2022-11-20 10:45:01,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:01,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:45:01,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1140 transitions. [2022-11-20 10:45:01,649 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8878504672897196 [2022-11-20 10:45:01,650 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1140 transitions. [2022-11-20 10:45:01,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1140 transitions. [2022-11-20 10:45:01,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:01,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1140 transitions. [2022-11-20 10:45:01,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.0) internal successors, (1140), 3 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:01,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:01,657 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:01,658 INFO L175 Difference]: Start difference. First operand has 367 places, 370 transitions, 750 flow. Second operand 3 states and 1140 transitions. [2022-11-20 10:45:01,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 369 transitions, 800 flow [2022-11-20 10:45:01,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 369 transitions, 796 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:45:01,665 INFO L231 Difference]: Finished difference. Result has 366 places, 369 transitions, 748 flow [2022-11-20 10:45:01,666 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=748, PETRI_PLACES=366, PETRI_TRANSITIONS=369} [2022-11-20 10:45:01,668 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -24 predicate places. [2022-11-20 10:45:01,669 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 369 transitions, 748 flow [2022-11-20 10:45:01,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:01,670 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:01,670 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] [2022-11-20 10:45:01,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:45:01,670 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 10:45:01,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:01,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1508304381, now seen corresponding path program 1 times [2022-11-20 10:45:01,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:01,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422784861] [2022-11-20 10:45:01,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:01,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:01,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:01,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:01,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422784861] [2022-11-20 10:45:01,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422784861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:01,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:01,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:45:01,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280911542] [2022-11-20 10:45:01,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:01,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:01,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:01,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:01,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:01,771 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 428 [2022-11-20 10:45:01,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 369 transitions, 748 flow. Second operand has 3 states, 3 states have (on average 375.3333333333333) internal successors, (1126), 3 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:01,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:01,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 428 [2022-11-20 10:45:01,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:02,088 INFO L130 PetriNetUnfolder]: 102/1204 cut-off events. [2022-11-20 10:45:02,089 INFO L131 PetriNetUnfolder]: For 13/22 co-relation queries the response was YES. [2022-11-20 10:45:02,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1360 conditions, 1204 events. 102/1204 cut-off events. For 13/22 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6902 event pairs, 59 based on Foata normal form. 0/1008 useless extension candidates. Maximal degree in co-relation 1310. Up to 136 conditions per place. [2022-11-20 10:45:02,102 INFO L137 encePairwiseOnDemand]: 423/428 looper letters, 18 selfloop transitions, 1 changer transitions 0/365 dead transitions. [2022-11-20 10:45:02,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 365 transitions, 778 flow [2022-11-20 10:45:02,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:02,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:45:02,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1145 transitions. [2022-11-20 10:45:02,107 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8917445482866043 [2022-11-20 10:45:02,111 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1145 transitions. [2022-11-20 10:45:02,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1145 transitions. [2022-11-20 10:45:02,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:02,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1145 transitions. [2022-11-20 10:45:02,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:02,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:02,120 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:02,120 INFO L175 Difference]: Start difference. First operand has 366 places, 369 transitions, 748 flow. Second operand 3 states and 1145 transitions. [2022-11-20 10:45:02,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 365 transitions, 778 flow [2022-11-20 10:45:02,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 365 transitions, 774 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:45:02,132 INFO L231 Difference]: Finished difference. Result has 362 places, 365 transitions, 738 flow [2022-11-20 10:45:02,133 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=738, PETRI_PLACES=362, PETRI_TRANSITIONS=365} [2022-11-20 10:45:02,134 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -28 predicate places. [2022-11-20 10:45:02,134 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 365 transitions, 738 flow [2022-11-20 10:45:02,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.3333333333333) internal successors, (1126), 3 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:02,135 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:02,136 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] [2022-11-20 10:45:02,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:45:02,136 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 10:45:02,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:02,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1457745557, now seen corresponding path program 1 times [2022-11-20 10:45:02,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:02,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645881682] [2022-11-20 10:45:02,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:02,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:02,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:02,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:02,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645881682] [2022-11-20 10:45:02,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645881682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:02,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:02,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:45:02,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367074515] [2022-11-20 10:45:02,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:02,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:02,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:02,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:02,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:02,236 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 428 [2022-11-20 10:45:02,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 365 transitions, 738 flow. Second operand has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:02,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:02,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 428 [2022-11-20 10:45:02,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:03,723 INFO L130 PetriNetUnfolder]: 1599/7060 cut-off events. [2022-11-20 10:45:03,724 INFO L131 PetriNetUnfolder]: For 146/153 co-relation queries the response was YES. [2022-11-20 10:45:03,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9340 conditions, 7060 events. 1599/7060 cut-off events. For 146/153 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 69516 event pairs, 1071 based on Foata normal form. 0/5618 useless extension candidates. Maximal degree in co-relation 9291. Up to 2202 conditions per place. [2022-11-20 10:45:03,803 INFO L137 encePairwiseOnDemand]: 425/428 looper letters, 30 selfloop transitions, 2 changer transitions 0/364 dead transitions. [2022-11-20 10:45:03,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 364 transitions, 800 flow [2022-11-20 10:45:03,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:03,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:45:03,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1128 transitions. [2022-11-20 10:45:03,807 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8785046728971962 [2022-11-20 10:45:03,807 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1128 transitions. [2022-11-20 10:45:03,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1128 transitions. [2022-11-20 10:45:03,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:03,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1128 transitions. [2022-11-20 10:45:03,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 376.0) internal successors, (1128), 3 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:03,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:03,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:03,815 INFO L175 Difference]: Start difference. First operand has 362 places, 365 transitions, 738 flow. Second operand 3 states and 1128 transitions. [2022-11-20 10:45:03,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 364 transitions, 800 flow [2022-11-20 10:45:03,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 364 transitions, 799 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:45:03,823 INFO L231 Difference]: Finished difference. Result has 362 places, 364 transitions, 739 flow [2022-11-20 10:45:03,824 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=735, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=739, PETRI_PLACES=362, PETRI_TRANSITIONS=364} [2022-11-20 10:45:03,825 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -28 predicate places. [2022-11-20 10:45:03,825 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 364 transitions, 739 flow [2022-11-20 10:45:03,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:03,826 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:03,826 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:03,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:45:03,827 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 10:45:03,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:03,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2085658422, now seen corresponding path program 1 times [2022-11-20 10:45:03,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:03,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424184054] [2022-11-20 10:45:03,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:03,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:04,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:04,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:04,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424184054] [2022-11-20 10:45:04,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424184054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:04,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:04,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:45:04,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040415498] [2022-11-20 10:45:04,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:04,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:45:04,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:04,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:45:04,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:45:04,366 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 428 [2022-11-20 10:45:04,369 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 364 transitions, 739 flow. Second operand has 6 states, 6 states have (on average 302.8333333333333) internal successors, (1817), 6 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:04,369 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:04,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 428 [2022-11-20 10:45:04,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:28,986 INFO L130 PetriNetUnfolder]: 62691/157490 cut-off events. [2022-11-20 10:45:28,986 INFO L131 PetriNetUnfolder]: For 397/402 co-relation queries the response was YES. [2022-11-20 10:45:29,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240761 conditions, 157490 events. 62691/157490 cut-off events. For 397/402 co-relation queries the response was YES. Maximal size of possible extension queue 3690. Compared 2101550 event pairs, 53781 based on Foata normal form. 0/127501 useless extension candidates. Maximal degree in co-relation 240713. Up to 83045 conditions per place. [2022-11-20 10:45:30,422 INFO L137 encePairwiseOnDemand]: 416/428 looper letters, 85 selfloop transitions, 10 changer transitions 0/362 dead transitions. [2022-11-20 10:45:30,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 362 transitions, 925 flow [2022-11-20 10:45:30,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:45:30,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:45:30,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1903 transitions. [2022-11-20 10:45:30,429 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7410436137071651 [2022-11-20 10:45:30,429 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1903 transitions. [2022-11-20 10:45:30,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1903 transitions. [2022-11-20 10:45:30,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:30,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1903 transitions. [2022-11-20 10:45:30,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 317.1666666666667) internal successors, (1903), 6 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:30,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 428.0) internal successors, (2996), 7 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:30,445 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 428.0) internal successors, (2996), 7 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:30,445 INFO L175 Difference]: Start difference. First operand has 362 places, 364 transitions, 739 flow. Second operand 6 states and 1903 transitions. [2022-11-20 10:45:30,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 362 transitions, 925 flow [2022-11-20 10:45:30,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 362 transitions, 921 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:45:30,454 INFO L231 Difference]: Finished difference. Result has 363 places, 362 transitions, 751 flow [2022-11-20 10:45:30,455 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=751, PETRI_PLACES=363, PETRI_TRANSITIONS=362} [2022-11-20 10:45:30,458 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -27 predicate places. [2022-11-20 10:45:30,458 INFO L495 AbstractCegarLoop]: Abstraction has has 363 places, 362 transitions, 751 flow [2022-11-20 10:45:30,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 302.8333333333333) internal successors, (1817), 6 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:30,459 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:30,459 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] [2022-11-20 10:45:30,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:45:30,460 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 10:45:30,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:30,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1107897835, now seen corresponding path program 1 times [2022-11-20 10:45:30,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:30,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963606967] [2022-11-20 10:45:30,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:30,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:30,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:30,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:30,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963606967] [2022-11-20 10:45:30,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963606967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:30,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:30,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:45:30,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534989269] [2022-11-20 10:45:30,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:30,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:30,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:30,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:30,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:30,544 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 428 [2022-11-20 10:45:30,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 362 transitions, 751 flow. Second operand has 3 states, 3 states have (on average 375.3333333333333) internal successors, (1126), 3 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:30,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:30,546 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 428 [2022-11-20 10:45:30,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:31,231 INFO L130 PetriNetUnfolder]: 266/2478 cut-off events. [2022-11-20 10:45:31,231 INFO L131 PetriNetUnfolder]: For 42/45 co-relation queries the response was YES. [2022-11-20 10:45:31,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2837 conditions, 2478 events. 266/2478 cut-off events. For 42/45 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 19172 event pairs, 135 based on Foata normal form. 0/2094 useless extension candidates. Maximal degree in co-relation 2804. Up to 322 conditions per place. [2022-11-20 10:45:31,248 INFO L137 encePairwiseOnDemand]: 423/428 looper letters, 18 selfloop transitions, 1 changer transitions 0/358 dead transitions. [2022-11-20 10:45:31,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 358 transitions, 781 flow [2022-11-20 10:45:31,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:31,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:45:31,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1145 transitions. [2022-11-20 10:45:31,252 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8917445482866043 [2022-11-20 10:45:31,252 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1145 transitions. [2022-11-20 10:45:31,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1145 transitions. [2022-11-20 10:45:31,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:31,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1145 transitions. [2022-11-20 10:45:31,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,259 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,259 INFO L175 Difference]: Start difference. First operand has 363 places, 362 transitions, 751 flow. Second operand 3 states and 1145 transitions. [2022-11-20 10:45:31,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 358 transitions, 781 flow [2022-11-20 10:45:31,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 358 transitions, 761 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 10:45:31,266 INFO L231 Difference]: Finished difference. Result has 356 places, 358 transitions, 725 flow [2022-11-20 10:45:31,267 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=723, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=725, PETRI_PLACES=356, PETRI_TRANSITIONS=358} [2022-11-20 10:45:31,267 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -34 predicate places. [2022-11-20 10:45:31,268 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 358 transitions, 725 flow [2022-11-20 10:45:31,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.3333333333333) internal successors, (1126), 3 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,268 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:31,269 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:31,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:45:31,269 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 10:45:31,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:31,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1901188234, now seen corresponding path program 1 times [2022-11-20 10:45:31,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:31,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738587922] [2022-11-20 10:45:31,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:31,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:31,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:31,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:31,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738587922] [2022-11-20 10:45:31,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738587922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:31,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:31,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:45:31,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975940819] [2022-11-20 10:45:31,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:31,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:31,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:31,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:31,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:31,319 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 428 [2022-11-20 10:45:31,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 358 transitions, 725 flow. Second operand has 3 states, 3 states have (on average 384.3333333333333) internal successors, (1153), 3 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:31,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 428 [2022-11-20 10:45:31,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:31,448 INFO L130 PetriNetUnfolder]: 32/650 cut-off events. [2022-11-20 10:45:31,449 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-20 10:45:31,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 703 conditions, 650 events. 32/650 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2344 event pairs, 15 based on Foata normal form. 0/571 useless extension candidates. Maximal degree in co-relation 654. Up to 40 conditions per place. [2022-11-20 10:45:31,456 INFO L137 encePairwiseOnDemand]: 425/428 looper letters, 12 selfloop transitions, 2 changer transitions 0/357 dead transitions. [2022-11-20 10:45:31,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 357 transitions, 751 flow [2022-11-20 10:45:31,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:31,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:45:31,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1164 transitions. [2022-11-20 10:45:31,460 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065420560747663 [2022-11-20 10:45:31,460 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1164 transitions. [2022-11-20 10:45:31,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1164 transitions. [2022-11-20 10:45:31,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:31,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1164 transitions. [2022-11-20 10:45:31,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 388.0) internal successors, (1164), 3 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,467 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,467 INFO L175 Difference]: Start difference. First operand has 356 places, 358 transitions, 725 flow. Second operand 3 states and 1164 transitions. [2022-11-20 10:45:31,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 357 transitions, 751 flow [2022-11-20 10:45:31,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 357 transitions, 750 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:45:31,474 INFO L231 Difference]: Finished difference. Result has 356 places, 357 transitions, 726 flow [2022-11-20 10:45:31,475 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=726, PETRI_PLACES=356, PETRI_TRANSITIONS=357} [2022-11-20 10:45:31,475 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -34 predicate places. [2022-11-20 10:45:31,476 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 357 transitions, 726 flow [2022-11-20 10:45:31,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.3333333333333) internal successors, (1153), 3 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,477 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:31,477 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:31,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:45:31,477 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 10:45:31,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:31,478 INFO L85 PathProgramCache]: Analyzing trace with hash -304445157, now seen corresponding path program 1 times [2022-11-20 10:45:31,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:31,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768485031] [2022-11-20 10:45:31,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:31,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:31,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:31,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:31,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768485031] [2022-11-20 10:45:31,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768485031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:31,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:31,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:45:31,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788080766] [2022-11-20 10:45:31,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:31,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:31,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:31,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:31,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:31,527 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 428 [2022-11-20 10:45:31,528 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 357 transitions, 726 flow. Second operand has 3 states, 3 states have (on average 375.3333333333333) internal successors, (1126), 3 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:31,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 428 [2022-11-20 10:45:31,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:31,753 INFO L130 PetriNetUnfolder]: 121/1257 cut-off events. [2022-11-20 10:45:31,753 INFO L131 PetriNetUnfolder]: For 21/27 co-relation queries the response was YES. [2022-11-20 10:45:31,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1427 conditions, 1257 events. 121/1257 cut-off events. For 21/27 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7527 event pairs, 71 based on Foata normal form. 0/1078 useless extension candidates. Maximal degree in co-relation 1377. Up to 150 conditions per place. [2022-11-20 10:45:31,767 INFO L137 encePairwiseOnDemand]: 423/428 looper letters, 18 selfloop transitions, 1 changer transitions 0/353 dead transitions. [2022-11-20 10:45:31,767 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 353 transitions, 756 flow [2022-11-20 10:45:31,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:31,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:45:31,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1145 transitions. [2022-11-20 10:45:31,770 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8917445482866043 [2022-11-20 10:45:31,770 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1145 transitions. [2022-11-20 10:45:31,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1145 transitions. [2022-11-20 10:45:31,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:31,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1145 transitions. [2022-11-20 10:45:31,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,777 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,778 INFO L175 Difference]: Start difference. First operand has 356 places, 357 transitions, 726 flow. Second operand 3 states and 1145 transitions. [2022-11-20 10:45:31,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 353 transitions, 756 flow [2022-11-20 10:45:31,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 353 transitions, 752 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:45:31,784 INFO L231 Difference]: Finished difference. Result has 352 places, 353 transitions, 716 flow [2022-11-20 10:45:31,785 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=716, PETRI_PLACES=352, PETRI_TRANSITIONS=353} [2022-11-20 10:45:31,786 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -38 predicate places. [2022-11-20 10:45:31,786 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 353 transitions, 716 flow [2022-11-20 10:45:31,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.3333333333333) internal successors, (1126), 3 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,787 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:31,788 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:31,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:45:31,788 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 10:45:31,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:31,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1588970243, now seen corresponding path program 1 times [2022-11-20 10:45:31,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:31,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27186981] [2022-11-20 10:45:31,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:31,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:31,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:31,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:31,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27186981] [2022-11-20 10:45:31,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27186981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:31,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:31,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:45:31,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453326925] [2022-11-20 10:45:31,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:31,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:31,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:31,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:31,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:31,844 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 428 [2022-11-20 10:45:31,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 353 transitions, 716 flow. Second operand has 3 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:31,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:31,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 428 [2022-11-20 10:45:31,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:32,513 INFO L130 PetriNetUnfolder]: 771/4278 cut-off events. [2022-11-20 10:45:32,514 INFO L131 PetriNetUnfolder]: For 88/88 co-relation queries the response was YES. [2022-11-20 10:45:32,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5360 conditions, 4278 events. 771/4278 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 38125 event pairs, 395 based on Foata normal form. 0/3744 useless extension candidates. Maximal degree in co-relation 5312. Up to 1025 conditions per place. [2022-11-20 10:45:32,541 INFO L137 encePairwiseOnDemand]: 419/428 looper letters, 28 selfloop transitions, 3 changer transitions 0/355 dead transitions. [2022-11-20 10:45:32,541 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 355 transitions, 787 flow [2022-11-20 10:45:32,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:32,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:45:32,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1141 transitions. [2022-11-20 10:45:32,545 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8886292834890965 [2022-11-20 10:45:32,545 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1141 transitions. [2022-11-20 10:45:32,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1141 transitions. [2022-11-20 10:45:32,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:32,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1141 transitions. [2022-11-20 10:45:32,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:32,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:32,559 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:32,559 INFO L175 Difference]: Start difference. First operand has 352 places, 353 transitions, 716 flow. Second operand 3 states and 1141 transitions. [2022-11-20 10:45:32,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 355 transitions, 787 flow [2022-11-20 10:45:32,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 355 transitions, 786 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:45:32,570 INFO L231 Difference]: Finished difference. Result has 348 places, 350 transitions, 724 flow [2022-11-20 10:45:32,571 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=703, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=724, PETRI_PLACES=348, PETRI_TRANSITIONS=350} [2022-11-20 10:45:32,572 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -42 predicate places. [2022-11-20 10:45:32,572 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 350 transitions, 724 flow [2022-11-20 10:45:32,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:32,573 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:32,573 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:32,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 10:45:32,574 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 10:45:32,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:32,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1255716793, now seen corresponding path program 1 times [2022-11-20 10:45:32,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:32,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964138270] [2022-11-20 10:45:32,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:32,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:32,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:32,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:32,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964138270] [2022-11-20 10:45:32,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964138270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:32,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:32,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:45:32,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94403697] [2022-11-20 10:45:32,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:32,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:45:32,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:32,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:45:32,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:45:32,787 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 428 [2022-11-20 10:45:32,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 350 transitions, 724 flow. Second operand has 7 states, 7 states have (on average 332.85714285714283) internal successors, (2330), 7 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:32,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:32,790 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 428 [2022-11-20 10:45:32,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:33,689 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1442] thread2EXIT-->L103-7: Formula: (and (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem40#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[][315], [452#(= |#race~M~0| 0), 456#(= |#race~A~0| 0), 74#L75-10true, 444#(= |#race~size~0| 0), Black: 454#true, 465#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), 429#(= |#race~N~0| 0), 273#L103-7true]) [2022-11-20 10:45:33,689 INFO L383 tUnfolder$Statistics]: this new event has 205 ancestors and is not cut-off event [2022-11-20 10:45:33,689 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is not cut-off event [2022-11-20 10:45:33,689 INFO L386 tUnfolder$Statistics]: existing Event has 205 ancestors and is not cut-off event [2022-11-20 10:45:33,690 INFO L386 tUnfolder$Statistics]: existing Event has 219 ancestors and is not cut-off event [2022-11-20 10:45:33,691 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1442] thread2EXIT-->L103-7: Formula: (and (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem40#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[][315], [452#(= |#race~M~0| 0), 456#(= |#race~A~0| 0), 444#(= |#race~size~0| 0), Black: 454#true, 465#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), 429#(= |#race~N~0| 0), 273#L103-7true, 121#L76true]) [2022-11-20 10:45:33,691 INFO L383 tUnfolder$Statistics]: this new event has 205 ancestors and is not cut-off event [2022-11-20 10:45:33,691 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is not cut-off event [2022-11-20 10:45:33,691 INFO L386 tUnfolder$Statistics]: existing Event has 205 ancestors and is not cut-off event [2022-11-20 10:45:33,691 INFO L386 tUnfolder$Statistics]: existing Event has 219 ancestors and is not cut-off event [2022-11-20 10:45:33,883 INFO L130 PetriNetUnfolder]: 739/3405 cut-off events. [2022-11-20 10:45:33,884 INFO L131 PetriNetUnfolder]: For 64/301 co-relation queries the response was YES. [2022-11-20 10:45:33,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4777 conditions, 3405 events. 739/3405 cut-off events. For 64/301 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 29006 event pairs, 446 based on Foata normal form. 1/2807 useless extension candidates. Maximal degree in co-relation 4727. Up to 951 conditions per place. [2022-11-20 10:45:33,928 INFO L137 encePairwiseOnDemand]: 417/428 looper letters, 101 selfloop transitions, 12 changer transitions 0/396 dead transitions. [2022-11-20 10:45:33,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 396 transitions, 1050 flow [2022-11-20 10:45:33,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:45:33,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 10:45:33,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3404 transitions. [2022-11-20 10:45:33,936 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7953271028037383 [2022-11-20 10:45:33,936 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3404 transitions. [2022-11-20 10:45:33,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3404 transitions. [2022-11-20 10:45:33,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:33,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3404 transitions. [2022-11-20 10:45:33,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 340.4) internal successors, (3404), 10 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:33,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 428.0) internal successors, (4708), 11 states have internal predecessors, (4708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:33,955 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 428.0) internal successors, (4708), 11 states have internal predecessors, (4708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:33,955 INFO L175 Difference]: Start difference. First operand has 348 places, 350 transitions, 724 flow. Second operand 10 states and 3404 transitions. [2022-11-20 10:45:33,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 396 transitions, 1050 flow [2022-11-20 10:45:33,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 396 transitions, 1050 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:45:33,964 INFO L231 Difference]: Finished difference. Result has 360 places, 355 transitions, 774 flow [2022-11-20 10:45:33,965 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=774, PETRI_PLACES=360, PETRI_TRANSITIONS=355} [2022-11-20 10:45:33,965 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -30 predicate places. [2022-11-20 10:45:33,965 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 355 transitions, 774 flow [2022-11-20 10:45:33,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 332.85714285714283) internal successors, (2330), 7 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:33,968 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:33,968 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:33,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:45:33,968 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 10:45:33,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:33,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1789463533, now seen corresponding path program 1 times [2022-11-20 10:45:33,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:33,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170080924] [2022-11-20 10:45:33,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:33,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:34,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:34,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:34,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170080924] [2022-11-20 10:45:34,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170080924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:34,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:34,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:45:34,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532870578] [2022-11-20 10:45:34,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:34,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:45:34,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:34,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:45:34,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:45:34,151 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 360 out of 428 [2022-11-20 10:45:34,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 355 transitions, 774 flow. Second operand has 5 states, 5 states have (on average 363.4) internal successors, (1817), 5 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:34,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:34,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 360 of 428 [2022-11-20 10:45:34,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:35,156 INFO L130 PetriNetUnfolder]: 987/5176 cut-off events. [2022-11-20 10:45:35,156 INFO L131 PetriNetUnfolder]: For 314/367 co-relation queries the response was YES. [2022-11-20 10:45:35,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6842 conditions, 5176 events. 987/5176 cut-off events. For 314/367 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 48911 event pairs, 587 based on Foata normal form. 0/4409 useless extension candidates. Maximal degree in co-relation 6784. Up to 1197 conditions per place. [2022-11-20 10:45:35,201 INFO L137 encePairwiseOnDemand]: 423/428 looper letters, 52 selfloop transitions, 4 changer transitions 0/373 dead transitions. [2022-11-20 10:45:35,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 373 transitions, 930 flow [2022-11-20 10:45:35,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:45:35,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:45:35,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1857 transitions. [2022-11-20 10:45:35,207 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8677570093457944 [2022-11-20 10:45:35,207 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1857 transitions. [2022-11-20 10:45:35,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1857 transitions. [2022-11-20 10:45:35,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:35,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1857 transitions. [2022-11-20 10:45:35,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 371.4) internal successors, (1857), 5 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:35,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 428.0) internal successors, (2568), 6 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:35,219 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 428.0) internal successors, (2568), 6 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:35,219 INFO L175 Difference]: Start difference. First operand has 360 places, 355 transitions, 774 flow. Second operand 5 states and 1857 transitions. [2022-11-20 10:45:35,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 373 transitions, 930 flow [2022-11-20 10:45:35,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 373 transitions, 924 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:45:35,229 INFO L231 Difference]: Finished difference. Result has 364 places, 356 transitions, 785 flow [2022-11-20 10:45:35,229 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=768, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=785, PETRI_PLACES=364, PETRI_TRANSITIONS=356} [2022-11-20 10:45:35,230 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -26 predicate places. [2022-11-20 10:45:35,230 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 356 transitions, 785 flow [2022-11-20 10:45:35,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 363.4) internal successors, (1817), 5 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:35,231 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:35,232 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:35,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:45:35,232 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 10:45:35,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:35,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1618251100, now seen corresponding path program 1 times [2022-11-20 10:45:35,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:35,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357022845] [2022-11-20 10:45:35,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:35,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:35,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:35,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:35,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357022845] [2022-11-20 10:45:35,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357022845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:35,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:35,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:45:35,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959374816] [2022-11-20 10:45:35,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:35,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:45:35,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:35,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:45:35,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:45:35,766 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 428 [2022-11-20 10:45:35,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 356 transitions, 785 flow. Second operand has 6 states, 6 states have (on average 319.0) internal successors, (1914), 6 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:35,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:35,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 428 [2022-11-20 10:45:35,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand