./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro/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_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-8393723 [2022-11-18 20:08:18,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:08:18,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:08:18,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:08:18,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:08:18,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:08:18,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:08:18,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:08:18,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:08:18,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:08:18,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:08:18,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:08:18,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:08:18,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:08:18,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:08:18,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:08:18,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:08:18,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:08:18,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:08:18,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:08:18,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:08:18,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:08:18,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:08:18,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:08:18,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:08:18,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:08:18,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:08:18,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:08:18,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:08:18,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:08:18,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:08:18,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:08:18,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:08:18,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:08:18,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:08:18,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:08:18,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:08:18,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:08:18,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:08:18,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:08:18,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:08:18,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:08:18,880 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:08:18,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:08:18,881 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:08:18,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:08:18,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:08:18,882 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:08:18,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:08:18,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:08:18,883 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:08:18,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:08:18,883 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:08:18,883 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:08:18,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:08:18,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:08:18,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:08:18,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:08:18,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:08:18,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:08:18,884 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:08:18,885 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:08:18,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:08:18,885 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:08:18,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:08:18,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:08:18,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:08:18,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:08:18,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:08:18,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:08:18,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:08:18,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:08:18,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:08:18,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:08:18,891 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:08:18,891 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:08:18,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:08:18,892 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_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 [2022-11-18 20:08:19,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:08:19,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:08:19,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:08:19,213 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:08:19,214 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:08:19,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2022-11-18 20:08:19,294 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro/data/a3c91763e/64bd63c9f52e4d8aa61b77331c1ab071/FLAG71ce49efe [2022-11-18 20:08:19,790 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:08:19,790 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2022-11-18 20:08:19,797 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro/data/a3c91763e/64bd63c9f52e4d8aa61b77331c1ab071/FLAG71ce49efe [2022-11-18 20:08:20,126 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro/data/a3c91763e/64bd63c9f52e4d8aa61b77331c1ab071 [2022-11-18 20:08:20,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:08:20,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:08:20,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:08:20,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:08:20,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:08:20,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:08:20" (1/1) ... [2022-11-18 20:08:20,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c0cda70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:20, skipping insertion in model container [2022-11-18 20:08:20,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:08:20" (1/1) ... [2022-11-18 20:08:20,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:08:20,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:08:20,389 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c[2865,2878] [2022-11-18 20:08:20,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:08:20,406 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:08:20,444 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c[2865,2878] [2022-11-18 20:08:20,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:08:20,475 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:08:20,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:20 WrapperNode [2022-11-18 20:08:20,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:08:20,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:08:20,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:08:20,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:08:20,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:20" (1/1) ... [2022-11-18 20:08:20,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:20" (1/1) ... [2022-11-18 20:08:20,580 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 22, statements flattened = 437 [2022-11-18 20:08:20,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:08:20,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:08:20,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:08:20,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:08:20,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:20" (1/1) ... [2022-11-18 20:08:20,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:20" (1/1) ... [2022-11-18 20:08:20,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:20" (1/1) ... [2022-11-18 20:08:20,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:20" (1/1) ... [2022-11-18 20:08:20,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:20" (1/1) ... [2022-11-18 20:08:20,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:20" (1/1) ... [2022-11-18 20:08:20,668 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:20" (1/1) ... [2022-11-18 20:08:20,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:20" (1/1) ... [2022-11-18 20:08:20,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:08:20,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:08:20,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:08:20,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:08:20,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:20" (1/1) ... [2022-11-18 20:08:20,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:08:20,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:08:20,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:08:20,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6de1988-4d5b-4f3a-a18d-ec6e8dddaddb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:08:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:08:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:08:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:08:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:08:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:08:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:08:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:08:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:08:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:08:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:08:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:08:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:08:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:08:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:08:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:08:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:08:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:08:20,776 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:08:20,974 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:08:20,986 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:08:21,911 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:08:22,083 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:08:22,083 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-18 20:08:22,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:08:22 BoogieIcfgContainer [2022-11-18 20:08:22,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:08:22,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:08:22,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:08:22,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:08:22,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:08:20" (1/3) ... [2022-11-18 20:08:22,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7580299d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:08:22, skipping insertion in model container [2022-11-18 20:08:22,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:20" (2/3) ... [2022-11-18 20:08:22,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7580299d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:08:22, skipping insertion in model container [2022-11-18 20:08:22,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:08:22" (3/3) ... [2022-11-18 20:08:22,096 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product.wvr.c [2022-11-18 20:08:22,105 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:08:22,135 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:08:22,135 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-11-18 20:08:22,136 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:08:22,297 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:08:22,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 412 places, 428 transitions, 880 flow [2022-11-18 20:08:22,618 INFO L130 PetriNetUnfolder]: 26/425 cut-off events. [2022-11-18 20:08:22,618 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:08:22,630 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. [2022-11-18 20:08:22,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 412 places, 428 transitions, 880 flow [2022-11-18 20:08:22,648 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 390 places, 405 transitions, 828 flow [2022-11-18 20:08:22,661 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:08:22,674 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;@41c8968d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:08:22,674 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2022-11-18 20:08:22,683 INFO L130 PetriNetUnfolder]: 0/26 cut-off events. [2022-11-18 20:08:22,684 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:08:22,684 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:22,685 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] [2022-11-18 20:08:22,686 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)] === [2022-11-18 20:08:22,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:22,693 INFO L85 PathProgramCache]: Analyzing trace with hash -253943540, now seen corresponding path program 1 times [2022-11-18 20:08:22,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:22,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194832559] [2022-11-18 20:08:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:22,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:22,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:22,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194832559] [2022-11-18 20:08:23,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194832559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:23,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:23,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:08:23,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588910812] [2022-11-18 20:08:23,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:23,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:08:23,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:23,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:08:23,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:08:23,068 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 428 [2022-11-18 20:08:23,078 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) [2022-11-18 20:08:23,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:23,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 428 [2022-11-18 20:08:23,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:23,687 INFO L130 PetriNetUnfolder]: 173/1532 cut-off events. [2022-11-18 20:08:23,688 INFO L131 PetriNetUnfolder]: For 106/118 co-relation queries the response was YES. [2022-11-18 20:08:23,697 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. [2022-11-18 20:08:23,708 INFO L137 encePairwiseOnDemand]: 397/428 looper letters, 24 selfloop transitions, 2 changer transitions 5/376 dead transitions. [2022-11-18 20:08:23,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 376 transitions, 822 flow [2022-11-18 20:08:23,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:08:23,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:08:23,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1168 transitions. [2022-11-18 20:08:23,729 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9096573208722741 [2022-11-18 20:08:23,730 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1168 transitions. [2022-11-18 20:08:23,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1168 transitions. [2022-11-18 20:08:23,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:23,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1168 transitions. [2022-11-18 20:08:23,745 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) [2022-11-18 20:08:23,757 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) [2022-11-18 20:08:23,758 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) [2022-11-18 20:08:23,760 INFO L175 Difference]: Start difference. First operand has 390 places, 405 transitions, 828 flow. Second operand 3 states and 1168 transitions. [2022-11-18 20:08:23,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 376 transitions, 822 flow [2022-11-18 20:08:23,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 376 transitions, 810 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:08:23,779 INFO L231 Difference]: Finished difference. Result has 373 places, 371 transitions, 752 flow [2022-11-18 20:08:23,781 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} [2022-11-18 20:08:23,786 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -17 predicate places. [2022-11-18 20:08:23,786 INFO L495 AbstractCegarLoop]: Abstraction has has 373 places, 371 transitions, 752 flow [2022-11-18 20:08:23,788 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) [2022-11-18 20:08:23,788 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:23,788 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] [2022-11-18 20:08:23,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:08:23,789 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)] === [2022-11-18 20:08:23,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:23,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1173953820, now seen corresponding path program 1 times [2022-11-18 20:08:23,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:23,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379726873] [2022-11-18 20:08:23,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:23,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:23,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:23,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379726873] [2022-11-18 20:08:23,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379726873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:23,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:23,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:08:23,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636936459] [2022-11-18 20:08:23,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:23,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:08:23,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:23,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:08:23,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:08:23,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 428 [2022-11-18 20:08:23,899 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) [2022-11-18 20:08:23,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:23,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 428 [2022-11-18 20:08:23,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:24,349 INFO L130 PetriNetUnfolder]: 139/1370 cut-off events. [2022-11-18 20:08:24,349 INFO L131 PetriNetUnfolder]: For 16/33 co-relation queries the response was YES. [2022-11-18 20:08:24,356 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. [2022-11-18 20:08:24,368 INFO L137 encePairwiseOnDemand]: 425/428 looper letters, 24 selfloop transitions, 2 changer transitions 0/370 dead transitions. [2022-11-18 20:08:24,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 370 transitions, 802 flow [2022-11-18 20:08:24,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:08:24,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:08:24,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1140 transitions. [2022-11-18 20:08:24,373 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8878504672897196 [2022-11-18 20:08:24,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1140 transitions. [2022-11-18 20:08:24,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1140 transitions. [2022-11-18 20:08:24,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:24,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1140 transitions. [2022-11-18 20:08:24,378 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) [2022-11-18 20:08:24,382 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) [2022-11-18 20:08:24,383 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) [2022-11-18 20:08:24,383 INFO L175 Difference]: Start difference. First operand has 373 places, 371 transitions, 752 flow. Second operand 3 states and 1140 transitions. [2022-11-18 20:08:24,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 370 transitions, 802 flow [2022-11-18 20:08:24,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 370 transitions, 798 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:08:24,396 INFO L231 Difference]: Finished difference. Result has 367 places, 370 transitions, 750 flow [2022-11-18 20:08:24,397 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} [2022-11-18 20:08:24,398 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -23 predicate places. [2022-11-18 20:08:24,398 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 370 transitions, 750 flow [2022-11-18 20:08:24,399 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) [2022-11-18 20:08:24,400 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:24,400 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:24,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:08:24,400 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)] === [2022-11-18 20:08:24,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:24,403 INFO L85 PathProgramCache]: Analyzing trace with hash -910761905, now seen corresponding path program 1 times [2022-11-18 20:08:24,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:24,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375510600] [2022-11-18 20:08:24,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:24,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:24,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:24,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:24,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375510600] [2022-11-18 20:08:24,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375510600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:24,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:24,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:08:24,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151064501] [2022-11-18 20:08:24,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:24,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:08:24,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:24,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:08:24,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:08:24,519 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 428 [2022-11-18 20:08:24,521 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) [2022-11-18 20:08:24,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:24,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 428 [2022-11-18 20:08:24,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:25,402 INFO L130 PetriNetUnfolder]: 449/3369 cut-off events. [2022-11-18 20:08:25,403 INFO L131 PetriNetUnfolder]: For 62/66 co-relation queries the response was YES. [2022-11-18 20:08:25,418 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. [2022-11-18 20:08:25,446 INFO L137 encePairwiseOnDemand]: 425/428 looper letters, 24 selfloop transitions, 2 changer transitions 0/369 dead transitions. [2022-11-18 20:08:25,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 369 transitions, 800 flow [2022-11-18 20:08:25,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:08:25,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:08:25,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1140 transitions. [2022-11-18 20:08:25,451 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8878504672897196 [2022-11-18 20:08:25,451 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1140 transitions. [2022-11-18 20:08:25,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1140 transitions. [2022-11-18 20:08:25,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:25,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1140 transitions. [2022-11-18 20:08:25,456 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) [2022-11-18 20:08:25,459 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) [2022-11-18 20:08:25,460 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) [2022-11-18 20:08:25,460 INFO L175 Difference]: Start difference. First operand has 367 places, 370 transitions, 750 flow. Second operand 3 states and 1140 transitions. [2022-11-18 20:08:25,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 369 transitions, 800 flow [2022-11-18 20:08:25,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 369 transitions, 796 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:08:25,468 INFO L231 Difference]: Finished difference. Result has 366 places, 369 transitions, 748 flow [2022-11-18 20:08:25,469 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} [2022-11-18 20:08:25,472 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -24 predicate places. [2022-11-18 20:08:25,472 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 369 transitions, 748 flow [2022-11-18 20:08:25,473 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) [2022-11-18 20:08:25,473 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:25,474 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] [2022-11-18 20:08:25,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:08:25,474 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)] === [2022-11-18 20:08:25,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:25,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1508304381, now seen corresponding path program 1 times [2022-11-18 20:08:25,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:25,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469431862] [2022-11-18 20:08:25,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:25,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:25,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:25,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:25,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469431862] [2022-11-18 20:08:25,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469431862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:25,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:25,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:08:25,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817397257] [2022-11-18 20:08:25,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:25,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:08:25,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:25,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:08:25,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:08:25,575 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 428 [2022-11-18 20:08:25,576 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) [2022-11-18 20:08:25,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:25,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 428 [2022-11-18 20:08:25,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:25,920 INFO L130 PetriNetUnfolder]: 102/1204 cut-off events. [2022-11-18 20:08:25,921 INFO L131 PetriNetUnfolder]: For 13/22 co-relation queries the response was YES. [2022-11-18 20:08:25,927 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. [2022-11-18 20:08:25,935 INFO L137 encePairwiseOnDemand]: 423/428 looper letters, 18 selfloop transitions, 1 changer transitions 0/365 dead transitions. [2022-11-18 20:08:25,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 365 transitions, 778 flow [2022-11-18 20:08:25,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:08:25,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:08:25,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1145 transitions. [2022-11-18 20:08:25,939 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8917445482866043 [2022-11-18 20:08:25,940 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1145 transitions. [2022-11-18 20:08:25,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1145 transitions. [2022-11-18 20:08:25,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:25,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1145 transitions. [2022-11-18 20:08:25,945 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) [2022-11-18 20:08:25,948 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) [2022-11-18 20:08:25,950 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) [2022-11-18 20:08:25,950 INFO L175 Difference]: Start difference. First operand has 366 places, 369 transitions, 748 flow. Second operand 3 states and 1145 transitions. [2022-11-18 20:08:25,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 365 transitions, 778 flow [2022-11-18 20:08:25,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 365 transitions, 774 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:08:25,959 INFO L231 Difference]: Finished difference. Result has 362 places, 365 transitions, 738 flow [2022-11-18 20:08:25,959 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} [2022-11-18 20:08:25,960 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -28 predicate places. [2022-11-18 20:08:25,960 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 365 transitions, 738 flow [2022-11-18 20:08:25,961 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) [2022-11-18 20:08:25,962 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:25,962 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] [2022-11-18 20:08:25,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:08:25,962 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)] === [2022-11-18 20:08:25,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:25,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1457745557, now seen corresponding path program 1 times [2022-11-18 20:08:25,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:25,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631169262] [2022-11-18 20:08:25,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:25,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:26,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:26,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:26,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631169262] [2022-11-18 20:08:26,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631169262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:26,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:26,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:08:26,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146183559] [2022-11-18 20:08:26,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:26,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:08:26,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:26,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:08:26,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:08:26,082 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 428 [2022-11-18 20:08:26,083 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) [2022-11-18 20:08:26,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:26,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 428 [2022-11-18 20:08:26,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:27,549 INFO L130 PetriNetUnfolder]: 1599/7060 cut-off events. [2022-11-18 20:08:27,549 INFO L131 PetriNetUnfolder]: For 146/153 co-relation queries the response was YES. [2022-11-18 20:08:27,578 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. [2022-11-18 20:08:27,616 INFO L137 encePairwiseOnDemand]: 425/428 looper letters, 30 selfloop transitions, 2 changer transitions 0/364 dead transitions. [2022-11-18 20:08:27,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 364 transitions, 800 flow [2022-11-18 20:08:27,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:08:27,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:08:27,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1128 transitions. [2022-11-18 20:08:27,741 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8785046728971962 [2022-11-18 20:08:27,741 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1128 transitions. [2022-11-18 20:08:27,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1128 transitions. [2022-11-18 20:08:27,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:27,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1128 transitions. [2022-11-18 20:08:27,744 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) [2022-11-18 20:08:27,747 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) [2022-11-18 20:08:27,749 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) [2022-11-18 20:08:27,749 INFO L175 Difference]: Start difference. First operand has 362 places, 365 transitions, 738 flow. Second operand 3 states and 1128 transitions. [2022-11-18 20:08:27,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 364 transitions, 800 flow [2022-11-18 20:08:27,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 364 transitions, 799 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:08:27,756 INFO L231 Difference]: Finished difference. Result has 362 places, 364 transitions, 739 flow [2022-11-18 20:08:27,757 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} [2022-11-18 20:08:27,758 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -28 predicate places. [2022-11-18 20:08:27,758 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 364 transitions, 739 flow [2022-11-18 20:08:27,759 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) [2022-11-18 20:08:27,759 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:27,759 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] [2022-11-18 20:08:27,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:08:27,760 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)] === [2022-11-18 20:08:27,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:27,761 INFO L85 PathProgramCache]: Analyzing trace with hash -2085658422, now seen corresponding path program 1 times [2022-11-18 20:08:27,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:27,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222046226] [2022-11-18 20:08:27,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:27,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:28,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:28,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:28,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222046226] [2022-11-18 20:08:28,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222046226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:28,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:28,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:08:28,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723593465] [2022-11-18 20:08:28,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:28,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:08:28,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:28,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:08:28,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:08:28,311 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 428 [2022-11-18 20:08:28,313 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) [2022-11-18 20:08:28,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:28,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 428 [2022-11-18 20:08:28,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:53,623 INFO L130 PetriNetUnfolder]: 62691/157490 cut-off events. [2022-11-18 20:08:53,623 INFO L131 PetriNetUnfolder]: For 397/402 co-relation queries the response was YES. [2022-11-18 20:08:54,050 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. [2022-11-18 20:08:55,071 INFO L137 encePairwiseOnDemand]: 416/428 looper letters, 85 selfloop transitions, 10 changer transitions 0/362 dead transitions. [2022-11-18 20:08:55,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 362 transitions, 925 flow [2022-11-18 20:08:55,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:08:55,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:08:55,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1903 transitions. [2022-11-18 20:08:55,079 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7410436137071651 [2022-11-18 20:08:55,079 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1903 transitions. [2022-11-18 20:08:55,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1903 transitions. [2022-11-18 20:08:55,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:55,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1903 transitions. [2022-11-18 20:08:55,088 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) [2022-11-18 20:08:55,095 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) [2022-11-18 20:08:55,097 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) [2022-11-18 20:08:55,098 INFO L175 Difference]: Start difference. First operand has 362 places, 364 transitions, 739 flow. Second operand 6 states and 1903 transitions. [2022-11-18 20:08:55,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 362 transitions, 925 flow [2022-11-18 20:08:55,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 362 transitions, 921 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:08:55,113 INFO L231 Difference]: Finished difference. Result has 363 places, 362 transitions, 751 flow [2022-11-18 20:08:55,121 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} [2022-11-18 20:08:55,122 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -27 predicate places. [2022-11-18 20:08:55,122 INFO L495 AbstractCegarLoop]: Abstraction has has 363 places, 362 transitions, 751 flow [2022-11-18 20:08:55,123 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) [2022-11-18 20:08:55,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:55,124 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] [2022-11-18 20:08:55,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:08:55,124 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)] === [2022-11-18 20:08:55,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:55,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1107897835, now seen corresponding path program 1 times [2022-11-18 20:08:55,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:55,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566638223] [2022-11-18 20:08:55,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:55,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:55,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:55,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:55,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566638223] [2022-11-18 20:08:55,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566638223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:55,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:55,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:08:55,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568551433] [2022-11-18 20:08:55,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:55,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:08:55,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:55,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:08:55,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:08:55,179 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 428 [2022-11-18 20:08:55,181 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) [2022-11-18 20:08:55,182 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:55,182 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 428 [2022-11-18 20:08:55,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:55,822 INFO L130 PetriNetUnfolder]: 266/2478 cut-off events. [2022-11-18 20:08:55,823 INFO L131 PetriNetUnfolder]: For 42/45 co-relation queries the response was YES. [2022-11-18 20:08:55,833 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. [2022-11-18 20:08:55,845 INFO L137 encePairwiseOnDemand]: 423/428 looper letters, 18 selfloop transitions, 1 changer transitions 0/358 dead transitions. [2022-11-18 20:08:55,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 358 transitions, 781 flow [2022-11-18 20:08:55,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:08:55,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:08:55,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1145 transitions. [2022-11-18 20:08:55,849 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8917445482866043 [2022-11-18 20:08:55,849 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1145 transitions. [2022-11-18 20:08:55,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1145 transitions. [2022-11-18 20:08:55,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:55,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1145 transitions. [2022-11-18 20:08:55,854 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) [2022-11-18 20:08:55,858 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) [2022-11-18 20:08:55,859 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) [2022-11-18 20:08:55,859 INFO L175 Difference]: Start difference. First operand has 363 places, 362 transitions, 751 flow. Second operand 3 states and 1145 transitions. [2022-11-18 20:08:55,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 358 transitions, 781 flow [2022-11-18 20:08:55,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 358 transitions, 761 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:08:55,868 INFO L231 Difference]: Finished difference. Result has 356 places, 358 transitions, 725 flow [2022-11-18 20:08:55,869 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} [2022-11-18 20:08:55,869 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -34 predicate places. [2022-11-18 20:08:55,870 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 358 transitions, 725 flow [2022-11-18 20:08:55,870 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) [2022-11-18 20:08:55,871 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:55,871 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] [2022-11-18 20:08:55,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:08:55,872 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)] === [2022-11-18 20:08:55,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:55,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1901188234, now seen corresponding path program 1 times [2022-11-18 20:08:55,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:55,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932658693] [2022-11-18 20:08:55,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:55,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:55,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:55,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:55,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932658693] [2022-11-18 20:08:55,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932658693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:55,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:55,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:08:55,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894753403] [2022-11-18 20:08:55,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:55,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:08:55,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:55,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:08:55,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:08:55,929 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 428 [2022-11-18 20:08:55,931 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) [2022-11-18 20:08:55,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:55,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 428 [2022-11-18 20:08:55,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:56,072 INFO L130 PetriNetUnfolder]: 32/650 cut-off events. [2022-11-18 20:08:56,073 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-18 20:08:56,076 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. [2022-11-18 20:08:56,079 INFO L137 encePairwiseOnDemand]: 425/428 looper letters, 12 selfloop transitions, 2 changer transitions 0/357 dead transitions. [2022-11-18 20:08:56,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 357 transitions, 751 flow [2022-11-18 20:08:56,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:08:56,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:08:56,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1164 transitions. [2022-11-18 20:08:56,083 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065420560747663 [2022-11-18 20:08:56,083 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1164 transitions. [2022-11-18 20:08:56,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1164 transitions. [2022-11-18 20:08:56,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:56,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1164 transitions. [2022-11-18 20:08:56,088 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) [2022-11-18 20:08:56,091 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) [2022-11-18 20:08:56,092 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) [2022-11-18 20:08:56,092 INFO L175 Difference]: Start difference. First operand has 356 places, 358 transitions, 725 flow. Second operand 3 states and 1164 transitions. [2022-11-18 20:08:56,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 357 transitions, 751 flow [2022-11-18 20:08:56,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 357 transitions, 750 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:08:56,099 INFO L231 Difference]: Finished difference. Result has 356 places, 357 transitions, 726 flow [2022-11-18 20:08:56,100 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} [2022-11-18 20:08:56,101 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -34 predicate places. [2022-11-18 20:08:56,101 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 357 transitions, 726 flow [2022-11-18 20:08:56,102 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) [2022-11-18 20:08:56,102 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:56,102 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] [2022-11-18 20:08:56,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:08:56,103 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)] === [2022-11-18 20:08:56,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:56,103 INFO L85 PathProgramCache]: Analyzing trace with hash -304445157, now seen corresponding path program 1 times [2022-11-18 20:08:56,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:56,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85081157] [2022-11-18 20:08:56,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:56,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:56,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:56,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:56,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85081157] [2022-11-18 20:08:56,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85081157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:56,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:56,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:08:56,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681195935] [2022-11-18 20:08:56,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:56,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:08:56,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:56,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:08:56,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:08:56,179 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 428 [2022-11-18 20:08:56,180 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) [2022-11-18 20:08:56,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:56,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 428 [2022-11-18 20:08:56,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:56,418 INFO L130 PetriNetUnfolder]: 121/1257 cut-off events. [2022-11-18 20:08:56,419 INFO L131 PetriNetUnfolder]: For 21/27 co-relation queries the response was YES. [2022-11-18 20:08:56,425 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. [2022-11-18 20:08:56,429 INFO L137 encePairwiseOnDemand]: 423/428 looper letters, 18 selfloop transitions, 1 changer transitions 0/353 dead transitions. [2022-11-18 20:08:56,430 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 353 transitions, 756 flow [2022-11-18 20:08:56,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:08:56,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:08:56,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1145 transitions. [2022-11-18 20:08:56,433 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8917445482866043 [2022-11-18 20:08:56,433 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1145 transitions. [2022-11-18 20:08:56,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1145 transitions. [2022-11-18 20:08:56,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:56,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1145 transitions. [2022-11-18 20:08:56,437 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) [2022-11-18 20:08:56,440 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) [2022-11-18 20:08:56,451 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) [2022-11-18 20:08:56,459 INFO L175 Difference]: Start difference. First operand has 356 places, 357 transitions, 726 flow. Second operand 3 states and 1145 transitions. [2022-11-18 20:08:56,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 353 transitions, 756 flow [2022-11-18 20:08:56,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 353 transitions, 752 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:08:56,465 INFO L231 Difference]: Finished difference. Result has 352 places, 353 transitions, 716 flow [2022-11-18 20:08:56,466 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} [2022-11-18 20:08:56,468 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -38 predicate places. [2022-11-18 20:08:56,469 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 353 transitions, 716 flow [2022-11-18 20:08:56,470 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) [2022-11-18 20:08:56,471 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:56,471 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] [2022-11-18 20:08:56,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:08:56,472 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-18 20:08:56,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:56,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1588970243, now seen corresponding path program 1 times [2022-11-18 20:08:56,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:56,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560775114] [2022-11-18 20:08:56,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:56,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:56,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:56,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:56,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560775114] [2022-11-18 20:08:56,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560775114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:56,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:56,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:08:56,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977540239] [2022-11-18 20:08:56,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:56,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:08:56,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:56,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:08:56,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:08:56,541 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 428 [2022-11-18 20:08:56,543 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) [2022-11-18 20:08:56,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:56,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 428 [2022-11-18 20:08:56,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:57,497 INFO L130 PetriNetUnfolder]: 771/4278 cut-off events. [2022-11-18 20:08:57,497 INFO L131 PetriNetUnfolder]: For 88/88 co-relation queries the response was YES. [2022-11-18 20:08:57,505 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. [2022-11-18 20:08:57,514 INFO L137 encePairwiseOnDemand]: 419/428 looper letters, 28 selfloop transitions, 3 changer transitions 0/355 dead transitions. [2022-11-18 20:08:57,514 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 355 transitions, 787 flow [2022-11-18 20:08:57,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:08:57,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:08:57,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1141 transitions. [2022-11-18 20:08:57,518 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8886292834890965 [2022-11-18 20:08:57,518 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1141 transitions. [2022-11-18 20:08:57,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1141 transitions. [2022-11-18 20:08:57,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:57,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1141 transitions. [2022-11-18 20:08:57,522 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) [2022-11-18 20:08:57,525 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) [2022-11-18 20:08:57,525 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) [2022-11-18 20:08:57,525 INFO L175 Difference]: Start difference. First operand has 352 places, 353 transitions, 716 flow. Second operand 3 states and 1141 transitions. [2022-11-18 20:08:57,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 355 transitions, 787 flow [2022-11-18 20:08:57,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 355 transitions, 786 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:08:57,532 INFO L231 Difference]: Finished difference. Result has 348 places, 350 transitions, 724 flow [2022-11-18 20:08:57,533 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} [2022-11-18 20:08:57,534 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -42 predicate places. [2022-11-18 20:08:57,534 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 350 transitions, 724 flow [2022-11-18 20:08:57,534 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) [2022-11-18 20:08:57,534 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:57,535 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] [2022-11-18 20:08:57,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:08:57,535 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-18 20:08:57,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:57,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1255716793, now seen corresponding path program 1 times [2022-11-18 20:08:57,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:57,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759726383] [2022-11-18 20:08:57,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:57,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:57,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:57,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:57,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759726383] [2022-11-18 20:08:57,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759726383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:57,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:57,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:08:57,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069536150] [2022-11-18 20:08:57,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:57,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:08:57,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:57,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:08:57,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:08:57,720 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 428 [2022-11-18 20:08:57,722 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) [2022-11-18 20:08:57,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:57,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 428 [2022-11-18 20:08:57,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:58,449 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]) [2022-11-18 20:08:58,449 INFO L383 tUnfolder$Statistics]: this new event has 205 ancestors and is not cut-off event [2022-11-18 20:08:58,450 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is not cut-off event [2022-11-18 20:08:58,450 INFO L386 tUnfolder$Statistics]: existing Event has 205 ancestors and is not cut-off event [2022-11-18 20:08:58,450 INFO L386 tUnfolder$Statistics]: existing Event has 219 ancestors and is not cut-off event [2022-11-18 20:08:58,451 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1442] thread2EXIT-->L103-7: Formula: (and (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem40#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[][315], [452#(= |#race~M~0| 0), 456#(= |#race~A~0| 0), 444#(= |#race~size~0| 0), Black: 454#true, 465#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), 429#(= |#race~N~0| 0), 273#L103-7true, 121#L76true]) [2022-11-18 20:08:58,451 INFO L383 tUnfolder$Statistics]: this new event has 205 ancestors and is not cut-off event [2022-11-18 20:08:58,452 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is not cut-off event [2022-11-18 20:08:58,452 INFO L386 tUnfolder$Statistics]: existing Event has 205 ancestors and is not cut-off event [2022-11-18 20:08:58,452 INFO L386 tUnfolder$Statistics]: existing Event has 219 ancestors and is not cut-off event [2022-11-18 20:08:58,608 INFO L130 PetriNetUnfolder]: 739/3405 cut-off events. [2022-11-18 20:08:58,609 INFO L131 PetriNetUnfolder]: For 64/301 co-relation queries the response was YES. [2022-11-18 20:08:58,625 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. [2022-11-18 20:08:58,638 INFO L137 encePairwiseOnDemand]: 417/428 looper letters, 101 selfloop transitions, 12 changer transitions 0/396 dead transitions. [2022-11-18 20:08:58,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 396 transitions, 1050 flow [2022-11-18 20:08:58,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:08:58,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:08:58,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3404 transitions. [2022-11-18 20:08:58,648 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7953271028037383 [2022-11-18 20:08:58,648 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3404 transitions. [2022-11-18 20:08:58,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3404 transitions. [2022-11-18 20:08:58,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:58,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3404 transitions. [2022-11-18 20:08:58,659 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) [2022-11-18 20:08:58,667 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) [2022-11-18 20:08:58,669 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) [2022-11-18 20:08:58,669 INFO L175 Difference]: Start difference. First operand has 348 places, 350 transitions, 724 flow. Second operand 10 states and 3404 transitions. [2022-11-18 20:08:58,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 396 transitions, 1050 flow [2022-11-18 20:08:58,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 396 transitions, 1050 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:08:58,678 INFO L231 Difference]: Finished difference. Result has 360 places, 355 transitions, 774 flow [2022-11-18 20:08:58,678 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} [2022-11-18 20:08:58,679 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -30 predicate places. [2022-11-18 20:08:58,679 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 355 transitions, 774 flow [2022-11-18 20:08:58,680 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) [2022-11-18 20:08:58,680 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:58,680 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] [2022-11-18 20:08:58,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:08:58,681 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-18 20:08:58,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:58,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1789463533, now seen corresponding path program 1 times [2022-11-18 20:08:58,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:58,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903901175] [2022-11-18 20:08:58,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:58,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:58,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:58,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:58,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903901175] [2022-11-18 20:08:58,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903901175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:58,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:58,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:08:58,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410827574] [2022-11-18 20:08:58,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:58,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:08:58,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:58,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:08:58,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:08:58,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 360 out of 428 [2022-11-18 20:08:58,875 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) [2022-11-18 20:08:58,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:08:58,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 360 of 428 [2022-11-18 20:08:58,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:08:59,783 INFO L130 PetriNetUnfolder]: 987/5176 cut-off events. [2022-11-18 20:08:59,783 INFO L131 PetriNetUnfolder]: For 314/367 co-relation queries the response was YES. [2022-11-18 20:08:59,799 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. [2022-11-18 20:08:59,811 INFO L137 encePairwiseOnDemand]: 423/428 looper letters, 52 selfloop transitions, 4 changer transitions 0/373 dead transitions. [2022-11-18 20:08:59,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 373 transitions, 930 flow [2022-11-18 20:08:59,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:08:59,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:08:59,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1857 transitions. [2022-11-18 20:08:59,817 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8677570093457944 [2022-11-18 20:08:59,817 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1857 transitions. [2022-11-18 20:08:59,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1857 transitions. [2022-11-18 20:08:59,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:08:59,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1857 transitions. [2022-11-18 20:08:59,822 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) [2022-11-18 20:08:59,826 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) [2022-11-18 20:08:59,827 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) [2022-11-18 20:08:59,827 INFO L175 Difference]: Start difference. First operand has 360 places, 355 transitions, 774 flow. Second operand 5 states and 1857 transitions. [2022-11-18 20:08:59,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 373 transitions, 930 flow [2022-11-18 20:08:59,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 373 transitions, 924 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:08:59,835 INFO L231 Difference]: Finished difference. Result has 364 places, 356 transitions, 785 flow [2022-11-18 20:08:59,836 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} [2022-11-18 20:08:59,836 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -26 predicate places. [2022-11-18 20:08:59,837 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 356 transitions, 785 flow [2022-11-18 20:08:59,837 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) [2022-11-18 20:08:59,837 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:08:59,838 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] [2022-11-18 20:08:59,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:08:59,838 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)] === [2022-11-18 20:08:59,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:59,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1618251100, now seen corresponding path program 1 times [2022-11-18 20:08:59,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:59,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294849208] [2022-11-18 20:08:59,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:59,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:00,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:09:00,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:09:00,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294849208] [2022-11-18 20:09:00,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294849208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:09:00,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:09:00,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:09:00,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476729950] [2022-11-18 20:09:00,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:09:00,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:09:00,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:09:00,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:09:00,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:09:00,293 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 428 [2022-11-18 20:09:00,295 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) [2022-11-18 20:09:00,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:09:00,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 428 [2022-11-18 20:09:00,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand