./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.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_b60794bc-8470-43ca-bf77-9dbb28f24536/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60794bc-8470-43ca-bf77-9dbb28f24536/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_b60794bc-8470-43ca-bf77-9dbb28f24536/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60794bc-8470-43ca-bf77-9dbb28f24536/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60794bc-8470-43ca-bf77-9dbb28f24536/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_b60794bc-8470-43ca-bf77-9dbb28f24536/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 c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 --- 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 20:28:01,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:28:01,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:28:01,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:28:01,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:28:01,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:28:01,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:28:01,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:28:01,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:28:01,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:28:01,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:28:01,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:28:01,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:28:01,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:28:01,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:28:01,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:28:01,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:28:01,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:28:01,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:28:01,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:28:01,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:28:01,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:28:01,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:28:01,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:28:01,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:28:01,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:28:01,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:28:01,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:28:01,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:28:01,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:28:01,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:28:01,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:28:01,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:28:01,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:28:01,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:28:01,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:28:01,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:28:01,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:28:01,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:28:01,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:28:01,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:28:01,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60794bc-8470-43ca-bf77-9dbb28f24536/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:28:01,934 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:28:01,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:28:01,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:28:01,935 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:28:01,936 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:28:01,936 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:28:01,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:28:01,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:28:01,938 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:28:01,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:28:01,938 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:28:01,939 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:28:01,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:28:01,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:28:01,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:28:01,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:28:01,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:28:01,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:28:01,941 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:28:01,941 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:28:01,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:28:01,942 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:28:01,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:28:01,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:28:01,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:28:01,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:28:01,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:28:01,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:28:01,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:28:01,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:28:01,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:28:01,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:28:01,945 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:28:01,946 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:28:01,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:28:01,946 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_b60794bc-8470-43ca-bf77-9dbb28f24536/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60794bc-8470-43ca-bf77-9dbb28f24536/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 [2022-11-18 20:28:02,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:28:02,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:28:02,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:28:02,319 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:28:02,320 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:28:02,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60794bc-8470-43ca-bf77-9dbb28f24536/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-11-18 20:28:02,402 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60794bc-8470-43ca-bf77-9dbb28f24536/bin/uautomizer-TMbwUNV5ro/data/ec5103293/eb13b010b43842d39b1c20dec9a3a063/FLAG8401e184a [2022-11-18 20:28:02,912 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:28:02,913 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60794bc-8470-43ca-bf77-9dbb28f24536/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-11-18 20:28:02,924 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60794bc-8470-43ca-bf77-9dbb28f24536/bin/uautomizer-TMbwUNV5ro/data/ec5103293/eb13b010b43842d39b1c20dec9a3a063/FLAG8401e184a [2022-11-18 20:28:03,259 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60794bc-8470-43ca-bf77-9dbb28f24536/bin/uautomizer-TMbwUNV5ro/data/ec5103293/eb13b010b43842d39b1c20dec9a3a063 [2022-11-18 20:28:03,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:28:03,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:28:03,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:28:03,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:28:03,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:28:03,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:28:03" (1/1) ... [2022-11-18 20:28:03,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c735e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:03, skipping insertion in model container [2022-11-18 20:28:03,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:28:03" (1/1) ... [2022-11-18 20:28:03,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:28:03,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:28:03,603 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_b60794bc-8470-43ca-bf77-9dbb28f24536/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-11-18 20:28:03,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:28:03,622 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:28:03,667 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_b60794bc-8470-43ca-bf77-9dbb28f24536/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-11-18 20:28:03,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:28:03,688 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:28:03,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:03 WrapperNode [2022-11-18 20:28:03,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:28:03,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:28:03,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:28:03,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:28:03,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:03" (1/1) ... [2022-11-18 20:28:03,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:03" (1/1) ... [2022-11-18 20:28:03,770 INFO L138 Inliner]: procedures = 29, calls = 88, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 673 [2022-11-18 20:28:03,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:28:03,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:28:03,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:28:03,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:28:03,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:03" (1/1) ... [2022-11-18 20:28:03,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:03" (1/1) ... [2022-11-18 20:28:03,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:03" (1/1) ... [2022-11-18 20:28:03,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:03" (1/1) ... [2022-11-18 20:28:03,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:03" (1/1) ... [2022-11-18 20:28:03,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:03" (1/1) ... [2022-11-18 20:28:03,820 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:03" (1/1) ... [2022-11-18 20:28:03,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:03" (1/1) ... [2022-11-18 20:28:03,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:28:03,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:28:03,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:28:03,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:28:03,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:03" (1/1) ... [2022-11-18 20:28:03,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:28:03,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60794bc-8470-43ca-bf77-9dbb28f24536/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:28:03,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60794bc-8470-43ca-bf77-9dbb28f24536/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:28:03,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b60794bc-8470-43ca-bf77-9dbb28f24536/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:28:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:28:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:28:03,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:28:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:28:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:28:03,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:28:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:28:03,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:28:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:28:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:28:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 20:28:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 20:28:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:28:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-18 20:28:03,942 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-18 20:28:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-18 20:28:03,943 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-18 20:28:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:28:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:28:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:28:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:28:03,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:28:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:28:03,947 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 20:28:04,133 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:28:04,149 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:28:05,231 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:28:05,673 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:28:05,674 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-18 20:28:05,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:28:05 BoogieIcfgContainer [2022-11-18 20:28:05,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:28:05,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:28:05,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:28:05,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:28:05,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:28:03" (1/3) ... [2022-11-18 20:28:05,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb0dcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:28:05, skipping insertion in model container [2022-11-18 20:28:05,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:03" (2/3) ... [2022-11-18 20:28:05,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb0dcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:28:05, skipping insertion in model container [2022-11-18 20:28:05,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:28:05" (3/3) ... [2022-11-18 20:28:05,692 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2022-11-18 20:28:05,702 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:28:05,714 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:28:05,714 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 89 error locations. [2022-11-18 20:28:05,714 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:28:05,920 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-18 20:28:05,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 572 places, 581 transitions, 1234 flow [2022-11-18 20:28:06,281 INFO L130 PetriNetUnfolder]: 26/505 cut-off events. [2022-11-18 20:28:06,281 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:28:06,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 505 events. 26/505 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 864 event pairs, 0 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 428. Up to 3 conditions per place. [2022-11-18 20:28:06,295 INFO L82 GeneralOperation]: Start removeDead. Operand has 572 places, 581 transitions, 1234 flow [2022-11-18 20:28:06,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 481 places, 487 transitions, 1022 flow [2022-11-18 20:28:06,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:28:06,325 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;@d442101, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:28:06,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 157 error locations. [2022-11-18 20:28:06,338 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2022-11-18 20:28:06,339 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:28:06,339 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:06,340 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] [2022-11-18 20:28:06,341 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:06,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:06,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1952155874, now seen corresponding path program 1 times [2022-11-18 20:28:06,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:06,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134681195] [2022-11-18 20:28:06,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:06,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:06,635 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 20:28:06,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:06,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134681195] [2022-11-18 20:28:06,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134681195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:06,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:06,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:06,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066860440] [2022-11-18 20:28:06,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:06,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:06,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:06,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:06,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:06,697 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 585 [2022-11-18 20:28:06,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 487 transitions, 1022 flow. Second operand has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states 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 20:28:06,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:06,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 585 [2022-11-18 20:28:06,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:07,536 INFO L130 PetriNetUnfolder]: 483/1785 cut-off events. [2022-11-18 20:28:07,536 INFO L131 PetriNetUnfolder]: For 377/416 co-relation queries the response was YES. [2022-11-18 20:28:07,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2824 conditions, 1785 events. 483/1785 cut-off events. For 377/416 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 9101 event pairs, 234 based on Foata normal form. 188/1683 useless extension candidates. Maximal degree in co-relation 2365. Up to 664 conditions per place. [2022-11-18 20:28:07,565 INFO L137 encePairwiseOnDemand]: 521/585 looper letters, 35 selfloop transitions, 2 changer transitions 4/425 dead transitions. [2022-11-18 20:28:07,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 425 transitions, 972 flow [2022-11-18 20:28:07,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:07,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:07,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1488 transitions. [2022-11-18 20:28:07,589 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8478632478632478 [2022-11-18 20:28:07,590 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1488 transitions. [2022-11-18 20:28:07,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1488 transitions. [2022-11-18 20:28:07,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:07,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1488 transitions. [2022-11-18 20:28:07,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states 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 20:28:07,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:07,619 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:07,621 INFO L175 Difference]: Start difference. First operand has 481 places, 487 transitions, 1022 flow. Second operand 3 states and 1488 transitions. [2022-11-18 20:28:07,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 425 transitions, 972 flow [2022-11-18 20:28:07,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 425 transitions, 940 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-18 20:28:07,645 INFO L231 Difference]: Finished difference. Result has 420 places, 421 transitions, 862 flow [2022-11-18 20:28:07,648 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=420, PETRI_TRANSITIONS=421} [2022-11-18 20:28:07,652 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -61 predicate places. [2022-11-18 20:28:07,653 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 421 transitions, 862 flow [2022-11-18 20:28:07,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states 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 20:28:07,654 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:07,654 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] [2022-11-18 20:28:07,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:28:07,655 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:07,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:07,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1416464009, now seen corresponding path program 1 times [2022-11-18 20:28:07,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:07,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696930126] [2022-11-18 20:28:07,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:07,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:07,785 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 20:28:07,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:07,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696930126] [2022-11-18 20:28:07,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696930126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:07,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:07,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:07,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709056469] [2022-11-18 20:28:07,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:07,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:07,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:07,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:07,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:07,795 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 585 [2022-11-18 20:28:07,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 421 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states 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 20:28:07,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:07,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 585 [2022-11-18 20:28:07,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:08,461 INFO L130 PetriNetUnfolder]: 483/1602 cut-off events. [2022-11-18 20:28:08,461 INFO L131 PetriNetUnfolder]: For 96/132 co-relation queries the response was YES. [2022-11-18 20:28:08,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2365 conditions, 1602 events. 483/1602 cut-off events. For 96/132 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 7807 event pairs, 234 based on Foata normal form. 0/1362 useless extension candidates. Maximal degree in co-relation 2324. Up to 664 conditions per place. [2022-11-18 20:28:08,482 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 35 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2022-11-18 20:28:08,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 420 transitions, 934 flow [2022-11-18 20:28:08,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:08,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:08,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1427 transitions. [2022-11-18 20:28:08,486 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8131054131054131 [2022-11-18 20:28:08,486 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1427 transitions. [2022-11-18 20:28:08,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1427 transitions. [2022-11-18 20:28:08,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:08,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1427 transitions. [2022-11-18 20:28:08,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states 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 20:28:08,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:08,497 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:08,497 INFO L175 Difference]: Start difference. First operand has 420 places, 421 transitions, 862 flow. Second operand 3 states and 1427 transitions. [2022-11-18 20:28:08,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 420 transitions, 934 flow [2022-11-18 20:28:08,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 420 transitions, 930 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:08,506 INFO L231 Difference]: Finished difference. Result has 415 places, 420 transitions, 860 flow [2022-11-18 20:28:08,506 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=860, PETRI_PLACES=415, PETRI_TRANSITIONS=420} [2022-11-18 20:28:08,507 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -66 predicate places. [2022-11-18 20:28:08,507 INFO L495 AbstractCegarLoop]: Abstraction has has 415 places, 420 transitions, 860 flow [2022-11-18 20:28:08,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states 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 20:28:08,509 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:08,509 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] [2022-11-18 20:28:08,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:28:08,509 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:08,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:08,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1848613338, now seen corresponding path program 1 times [2022-11-18 20:28:08,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:08,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469824704] [2022-11-18 20:28:08,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:08,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:08,612 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 20:28:08,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:08,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469824704] [2022-11-18 20:28:08,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469824704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:08,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:08,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:08,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029233522] [2022-11-18 20:28:08,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:08,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:08,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:08,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:08,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:08,617 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-18 20:28:08,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 420 transitions, 860 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 20:28:08,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:08,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-18 20:28:08,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:09,097 INFO L130 PetriNetUnfolder]: 414/1475 cut-off events. [2022-11-18 20:28:09,097 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-18 20:28:09,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2121 conditions, 1475 events. 414/1475 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6930 event pairs, 192 based on Foata normal form. 0/1251 useless extension candidates. Maximal degree in co-relation 2073. Up to 556 conditions per place. [2022-11-18 20:28:09,116 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/419 dead transitions. [2022-11-18 20:28:09,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 419 transitions, 920 flow [2022-11-18 20:28:09,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:09,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:09,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-18 20:28:09,120 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-18 20:28:09,120 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-18 20:28:09,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-18 20:28:09,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:09,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-18 20:28:09,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states 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 20:28:09,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:09,132 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:09,132 INFO L175 Difference]: Start difference. First operand has 415 places, 420 transitions, 860 flow. Second operand 3 states and 1448 transitions. [2022-11-18 20:28:09,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 419 transitions, 920 flow [2022-11-18 20:28:09,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 419 transitions, 916 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:09,140 INFO L231 Difference]: Finished difference. Result has 414 places, 419 transitions, 858 flow [2022-11-18 20:28:09,141 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=858, PETRI_PLACES=414, PETRI_TRANSITIONS=419} [2022-11-18 20:28:09,144 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -67 predicate places. [2022-11-18 20:28:09,144 INFO L495 AbstractCegarLoop]: Abstraction has has 414 places, 419 transitions, 858 flow [2022-11-18 20:28:09,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 20:28:09,145 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:09,145 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] [2022-11-18 20:28:09,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:28:09,146 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:09,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:09,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2072807576, now seen corresponding path program 1 times [2022-11-18 20:28:09,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:09,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177303235] [2022-11-18 20:28:09,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:09,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:09,208 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 20:28:09,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:09,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177303235] [2022-11-18 20:28:09,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177303235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:09,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:09,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:09,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458118234] [2022-11-18 20:28:09,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:09,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:09,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:09,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:09,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:09,213 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-18 20:28:09,215 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 419 transitions, 858 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 20:28:09,215 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:09,215 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-18 20:28:09,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:09,653 INFO L130 PetriNetUnfolder]: 414/1474 cut-off events. [2022-11-18 20:28:09,654 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-18 20:28:09,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2120 conditions, 1474 events. 414/1474 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6922 event pairs, 192 based on Foata normal form. 0/1251 useless extension candidates. Maximal degree in co-relation 2065. Up to 556 conditions per place. [2022-11-18 20:28:09,678 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2022-11-18 20:28:09,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 418 transitions, 918 flow [2022-11-18 20:28:09,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:09,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:09,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-18 20:28:09,683 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-18 20:28:09,683 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-18 20:28:09,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-18 20:28:09,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:09,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-18 20:28:09,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states 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 20:28:09,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:09,700 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:09,700 INFO L175 Difference]: Start difference. First operand has 414 places, 419 transitions, 858 flow. Second operand 3 states and 1448 transitions. [2022-11-18 20:28:09,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 418 transitions, 918 flow [2022-11-18 20:28:09,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 418 transitions, 914 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:09,710 INFO L231 Difference]: Finished difference. Result has 413 places, 418 transitions, 856 flow [2022-11-18 20:28:09,711 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=856, PETRI_PLACES=413, PETRI_TRANSITIONS=418} [2022-11-18 20:28:09,713 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -68 predicate places. [2022-11-18 20:28:09,713 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 418 transitions, 856 flow [2022-11-18 20:28:09,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 20:28:09,714 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:09,715 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:09,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:28:09,715 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:09,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:09,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1911408416, now seen corresponding path program 1 times [2022-11-18 20:28:09,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:09,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630366994] [2022-11-18 20:28:09,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:09,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:09,805 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 20:28:09,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:09,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630366994] [2022-11-18 20:28:09,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630366994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:09,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:09,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:09,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127468055] [2022-11-18 20:28:09,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:09,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:09,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:09,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:09,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:09,810 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-18 20:28:09,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 418 transitions, 856 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 20:28:09,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:09,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-18 20:28:09,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:10,310 INFO L130 PetriNetUnfolder]: 414/1473 cut-off events. [2022-11-18 20:28:10,310 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-18 20:28:10,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2119 conditions, 1473 events. 414/1473 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6922 event pairs, 192 based on Foata normal form. 0/1251 useless extension candidates. Maximal degree in co-relation 2057. Up to 556 conditions per place. [2022-11-18 20:28:10,325 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/417 dead transitions. [2022-11-18 20:28:10,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 417 transitions, 916 flow [2022-11-18 20:28:10,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:10,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-18 20:28:10,330 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-18 20:28:10,330 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-18 20:28:10,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-18 20:28:10,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:10,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-18 20:28:10,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states 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 20:28:10,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:10,341 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:10,341 INFO L175 Difference]: Start difference. First operand has 413 places, 418 transitions, 856 flow. Second operand 3 states and 1448 transitions. [2022-11-18 20:28:10,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 417 transitions, 916 flow [2022-11-18 20:28:10,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 417 transitions, 912 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:10,350 INFO L231 Difference]: Finished difference. Result has 412 places, 417 transitions, 854 flow [2022-11-18 20:28:10,351 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=854, PETRI_PLACES=412, PETRI_TRANSITIONS=417} [2022-11-18 20:28:10,352 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -69 predicate places. [2022-11-18 20:28:10,352 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 417 transitions, 854 flow [2022-11-18 20:28:10,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 20:28:10,353 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:10,353 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:10,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:28:10,354 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:10,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:10,355 INFO L85 PathProgramCache]: Analyzing trace with hash 214477739, now seen corresponding path program 1 times [2022-11-18 20:28:10,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:10,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421406715] [2022-11-18 20:28:10,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:10,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:10,397 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 20:28:10,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:10,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421406715] [2022-11-18 20:28:10,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421406715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:10,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:10,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:10,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178337280] [2022-11-18 20:28:10,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:10,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:10,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:10,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:10,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:10,401 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-18 20:28:10,404 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 417 transitions, 854 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 20:28:10,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:10,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-18 20:28:10,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:10,830 INFO L130 PetriNetUnfolder]: 414/1472 cut-off events. [2022-11-18 20:28:10,830 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-18 20:28:10,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2118 conditions, 1472 events. 414/1472 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6853 event pairs, 192 based on Foata normal form. 0/1251 useless extension candidates. Maximal degree in co-relation 2049. Up to 556 conditions per place. [2022-11-18 20:28:10,849 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/416 dead transitions. [2022-11-18 20:28:10,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 416 transitions, 914 flow [2022-11-18 20:28:10,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:10,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:10,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-18 20:28:10,853 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-18 20:28:10,854 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-18 20:28:10,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-18 20:28:10,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:10,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-18 20:28:10,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states 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 20:28:10,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:10,866 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:10,866 INFO L175 Difference]: Start difference. First operand has 412 places, 417 transitions, 854 flow. Second operand 3 states and 1448 transitions. [2022-11-18 20:28:10,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 416 transitions, 914 flow [2022-11-18 20:28:10,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 416 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:10,875 INFO L231 Difference]: Finished difference. Result has 411 places, 416 transitions, 852 flow [2022-11-18 20:28:10,876 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=852, PETRI_PLACES=411, PETRI_TRANSITIONS=416} [2022-11-18 20:28:10,879 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -70 predicate places. [2022-11-18 20:28:10,880 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 416 transitions, 852 flow [2022-11-18 20:28:10,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 20:28:10,882 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:10,882 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 20:28:10,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:28:10,882 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:10,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:10,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1130432985, now seen corresponding path program 1 times [2022-11-18 20:28:10,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:10,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518520489] [2022-11-18 20:28:10,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:10,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:10,965 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 20:28:10,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:10,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518520489] [2022-11-18 20:28:10,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518520489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:10,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:10,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:10,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631239302] [2022-11-18 20:28:10,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:10,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:10,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:10,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:10,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:10,969 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 585 [2022-11-18 20:28:10,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 416 transitions, 852 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states 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 20:28:10,971 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:10,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 585 [2022-11-18 20:28:10,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:11,380 INFO L130 PetriNetUnfolder]: 414/1471 cut-off events. [2022-11-18 20:28:11,381 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-18 20:28:11,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2135 conditions, 1471 events. 414/1471 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6958 event pairs, 192 based on Foata normal form. 0/1251 useless extension candidates. Maximal degree in co-relation 2059. Up to 574 conditions per place. [2022-11-18 20:28:11,398 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 47 selfloop transitions, 2 changer transitions 0/415 dead transitions. [2022-11-18 20:28:11,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 415 transitions, 948 flow [2022-11-18 20:28:11,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:11,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1412 transitions. [2022-11-18 20:28:11,402 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8045584045584045 [2022-11-18 20:28:11,402 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1412 transitions. [2022-11-18 20:28:11,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1412 transitions. [2022-11-18 20:28:11,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:11,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1412 transitions. [2022-11-18 20:28:11,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 470.6666666666667) internal successors, (1412), 3 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states 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 20:28:11,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:11,411 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:11,411 INFO L175 Difference]: Start difference. First operand has 411 places, 416 transitions, 852 flow. Second operand 3 states and 1412 transitions. [2022-11-18 20:28:11,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 415 transitions, 948 flow [2022-11-18 20:28:11,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 415 transitions, 944 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:11,419 INFO L231 Difference]: Finished difference. Result has 410 places, 415 transitions, 850 flow [2022-11-18 20:28:11,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=410, PETRI_TRANSITIONS=415} [2022-11-18 20:28:11,421 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -71 predicate places. [2022-11-18 20:28:11,421 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 415 transitions, 850 flow [2022-11-18 20:28:11,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states 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 20:28:11,422 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:11,422 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:11,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:28:11,422 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:11,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:11,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1113238568, now seen corresponding path program 1 times [2022-11-18 20:28:11,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:11,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166502054] [2022-11-18 20:28:11,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:11,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:11,489 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 20:28:11,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:11,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166502054] [2022-11-18 20:28:11,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166502054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:11,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:11,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:11,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376420243] [2022-11-18 20:28:11,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:11,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:11,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:11,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:11,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:11,494 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-18 20:28:11,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 415 transitions, 850 flow. Second operand has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 20:28:11,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:11,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-18 20:28:11,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:11,916 INFO L130 PetriNetUnfolder]: 414/1470 cut-off events. [2022-11-18 20:28:11,917 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-18 20:28:11,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2119 conditions, 1470 events. 414/1470 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6959 event pairs, 192 based on Foata normal form. 0/1251 useless extension candidates. Maximal degree in co-relation 2036. Up to 559 conditions per place. [2022-11-18 20:28:11,932 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 32 selfloop transitions, 2 changer transitions 0/414 dead transitions. [2022-11-18 20:28:11,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 414 transitions, 916 flow [2022-11-18 20:28:11,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:11,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:11,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-18 20:28:11,936 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8216524216524217 [2022-11-18 20:28:11,936 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-18 20:28:11,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-18 20:28:11,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:11,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-18 20:28:11,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 20:28:11,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:11,946 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:11,946 INFO L175 Difference]: Start difference. First operand has 410 places, 415 transitions, 850 flow. Second operand 3 states and 1442 transitions. [2022-11-18 20:28:11,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 414 transitions, 916 flow [2022-11-18 20:28:11,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 414 transitions, 912 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:11,955 INFO L231 Difference]: Finished difference. Result has 409 places, 414 transitions, 848 flow [2022-11-18 20:28:11,955 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=848, PETRI_PLACES=409, PETRI_TRANSITIONS=414} [2022-11-18 20:28:11,956 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -72 predicate places. [2022-11-18 20:28:11,956 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 414 transitions, 848 flow [2022-11-18 20:28:11,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 20:28:11,958 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:11,958 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] [2022-11-18 20:28:11,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:28:11,959 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:11,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:11,959 INFO L85 PathProgramCache]: Analyzing trace with hash -2009324339, now seen corresponding path program 1 times [2022-11-18 20:28:11,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:11,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121637636] [2022-11-18 20:28:11,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:11,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:11,998 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 20:28:11,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:11,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121637636] [2022-11-18 20:28:11,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121637636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:11,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:11,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:11,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168361440] [2022-11-18 20:28:11,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:12,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:12,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:12,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:12,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:12,002 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-18 20:28:12,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 414 transitions, 848 flow. Second operand has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 20:28:12,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:12,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-18 20:28:12,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:12,383 INFO L130 PetriNetUnfolder]: 414/1469 cut-off events. [2022-11-18 20:28:12,383 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-18 20:28:12,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2118 conditions, 1469 events. 414/1469 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6956 event pairs, 192 based on Foata normal form. 0/1251 useless extension candidates. Maximal degree in co-relation 2028. Up to 559 conditions per place. [2022-11-18 20:28:12,401 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 32 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2022-11-18 20:28:12,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 413 transitions, 914 flow [2022-11-18 20:28:12,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:12,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:12,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-18 20:28:12,405 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8216524216524217 [2022-11-18 20:28:12,405 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-18 20:28:12,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-18 20:28:12,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:12,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-18 20:28:12,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 20:28:12,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:12,421 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:12,421 INFO L175 Difference]: Start difference. First operand has 409 places, 414 transitions, 848 flow. Second operand 3 states and 1442 transitions. [2022-11-18 20:28:12,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 413 transitions, 914 flow [2022-11-18 20:28:12,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 413 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:12,429 INFO L231 Difference]: Finished difference. Result has 408 places, 413 transitions, 846 flow [2022-11-18 20:28:12,430 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=408, PETRI_TRANSITIONS=413} [2022-11-18 20:28:12,431 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -73 predicate places. [2022-11-18 20:28:12,432 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 413 transitions, 846 flow [2022-11-18 20:28:12,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 20:28:12,433 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:12,433 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] [2022-11-18 20:28:12,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:28:12,434 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:12,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:12,434 INFO L85 PathProgramCache]: Analyzing trace with hash -919098896, now seen corresponding path program 1 times [2022-11-18 20:28:12,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:12,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839592238] [2022-11-18 20:28:12,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:12,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:12,494 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 20:28:12,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:12,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839592238] [2022-11-18 20:28:12,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839592238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:12,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:12,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:12,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905834901] [2022-11-18 20:28:12,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:12,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:12,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:12,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:12,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:12,506 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-18 20:28:12,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 413 transitions, 846 flow. Second operand has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 20:28:12,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:12,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-18 20:28:12,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:12,954 INFO L130 PetriNetUnfolder]: 414/1468 cut-off events. [2022-11-18 20:28:12,954 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-18 20:28:12,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2117 conditions, 1468 events. 414/1468 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6940 event pairs, 192 based on Foata normal form. 0/1251 useless extension candidates. Maximal degree in co-relation 2020. Up to 559 conditions per place. [2022-11-18 20:28:12,971 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 32 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2022-11-18 20:28:12,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 412 transitions, 912 flow [2022-11-18 20:28:12,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:12,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:12,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-18 20:28:12,975 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8216524216524217 [2022-11-18 20:28:12,975 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-18 20:28:12,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-18 20:28:12,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:12,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-18 20:28:12,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 20:28:12,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:12,984 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:12,984 INFO L175 Difference]: Start difference. First operand has 408 places, 413 transitions, 846 flow. Second operand 3 states and 1442 transitions. [2022-11-18 20:28:12,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 412 transitions, 912 flow [2022-11-18 20:28:12,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 412 transitions, 908 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:12,993 INFO L231 Difference]: Finished difference. Result has 407 places, 412 transitions, 844 flow [2022-11-18 20:28:12,994 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=844, PETRI_PLACES=407, PETRI_TRANSITIONS=412} [2022-11-18 20:28:12,994 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -74 predicate places. [2022-11-18 20:28:12,994 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 412 transitions, 844 flow [2022-11-18 20:28:12,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 20:28:12,995 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:12,995 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] [2022-11-18 20:28:12,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:28:12,996 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:12,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:12,996 INFO L85 PathProgramCache]: Analyzing trace with hash 821058190, now seen corresponding path program 1 times [2022-11-18 20:28:12,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:12,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050515882] [2022-11-18 20:28:12,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:12,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:13,034 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 20:28:13,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:13,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050515882] [2022-11-18 20:28:13,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050515882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:13,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:13,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:13,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692701669] [2022-11-18 20:28:13,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:13,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:13,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:13,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:13,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:13,038 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-18 20:28:13,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 412 transitions, 844 flow. Second operand has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 20:28:13,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:13,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-18 20:28:13,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:13,407 INFO L130 PetriNetUnfolder]: 414/1467 cut-off events. [2022-11-18 20:28:13,407 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-18 20:28:13,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2115 conditions, 1467 events. 414/1467 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6955 event pairs, 192 based on Foata normal form. 0/1251 useless extension candidates. Maximal degree in co-relation 2011. Up to 558 conditions per place. [2022-11-18 20:28:13,422 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 31 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2022-11-18 20:28:13,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 411 transitions, 908 flow [2022-11-18 20:28:13,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:13,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:13,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1441 transitions. [2022-11-18 20:28:13,427 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8210826210826211 [2022-11-18 20:28:13,427 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1441 transitions. [2022-11-18 20:28:13,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1441 transitions. [2022-11-18 20:28:13,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:13,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1441 transitions. [2022-11-18 20:28:13,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states 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 20:28:13,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:13,436 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:13,436 INFO L175 Difference]: Start difference. First operand has 407 places, 412 transitions, 844 flow. Second operand 3 states and 1441 transitions. [2022-11-18 20:28:13,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 411 transitions, 908 flow [2022-11-18 20:28:13,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 411 transitions, 904 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:13,444 INFO L231 Difference]: Finished difference. Result has 406 places, 411 transitions, 842 flow [2022-11-18 20:28:13,445 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=842, PETRI_PLACES=406, PETRI_TRANSITIONS=411} [2022-11-18 20:28:13,446 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -75 predicate places. [2022-11-18 20:28:13,446 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 411 transitions, 842 flow [2022-11-18 20:28:13,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 20:28:13,447 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:13,447 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:13,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:28:13,447 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:13,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:13,448 INFO L85 PathProgramCache]: Analyzing trace with hash 109781360, now seen corresponding path program 1 times [2022-11-18 20:28:13,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:13,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328599764] [2022-11-18 20:28:13,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:13,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:13,489 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 20:28:13,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:13,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328599764] [2022-11-18 20:28:13,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328599764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:13,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:13,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:13,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249245660] [2022-11-18 20:28:13,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:13,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:13,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:13,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:13,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:13,494 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 585 [2022-11-18 20:28:13,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 411 transitions, 842 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states 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 20:28:13,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:13,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 585 [2022-11-18 20:28:13,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:13,956 INFO L130 PetriNetUnfolder]: 561/1927 cut-off events. [2022-11-18 20:28:13,956 INFO L131 PetriNetUnfolder]: For 105/144 co-relation queries the response was YES. [2022-11-18 20:28:13,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2828 conditions, 1927 events. 561/1927 cut-off events. For 105/144 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 10197 event pairs, 285 based on Foata normal form. 0/1634 useless extension candidates. Maximal degree in co-relation 2717. Up to 790 conditions per place. [2022-11-18 20:28:13,977 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 41 selfloop transitions, 2 changer transitions 0/410 dead transitions. [2022-11-18 20:28:13,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 410 transitions, 926 flow [2022-11-18 20:28:13,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:13,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:13,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1406 transitions. [2022-11-18 20:28:13,981 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8011396011396011 [2022-11-18 20:28:13,981 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1406 transitions. [2022-11-18 20:28:13,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1406 transitions. [2022-11-18 20:28:13,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:13,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1406 transitions. [2022-11-18 20:28:13,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 468.6666666666667) internal successors, (1406), 3 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states 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 20:28:13,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:13,990 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:13,990 INFO L175 Difference]: Start difference. First operand has 406 places, 411 transitions, 842 flow. Second operand 3 states and 1406 transitions. [2022-11-18 20:28:13,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 410 transitions, 926 flow [2022-11-18 20:28:13,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 410 transitions, 922 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:13,998 INFO L231 Difference]: Finished difference. Result has 405 places, 410 transitions, 840 flow [2022-11-18 20:28:13,999 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=840, PETRI_PLACES=405, PETRI_TRANSITIONS=410} [2022-11-18 20:28:14,000 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -76 predicate places. [2022-11-18 20:28:14,000 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 410 transitions, 840 flow [2022-11-18 20:28:14,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states 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 20:28:14,001 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:14,001 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] [2022-11-18 20:28:14,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:28:14,001 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:14,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:14,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1554179993, now seen corresponding path program 1 times [2022-11-18 20:28:14,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:14,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078693175] [2022-11-18 20:28:14,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:14,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:14,042 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 20:28:14,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:14,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078693175] [2022-11-18 20:28:14,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078693175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:14,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:14,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:14,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121183768] [2022-11-18 20:28:14,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:14,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:14,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:14,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:14,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:14,046 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 585 [2022-11-18 20:28:14,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 410 transitions, 840 flow. Second operand has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states 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 20:28:14,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:14,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 585 [2022-11-18 20:28:14,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:14,518 INFO L130 PetriNetUnfolder]: 510/1832 cut-off events. [2022-11-18 20:28:14,518 INFO L131 PetriNetUnfolder]: For 99/135 co-relation queries the response was YES. [2022-11-18 20:28:14,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2641 conditions, 1832 events. 510/1832 cut-off events. For 99/135 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 9533 event pairs, 252 based on Foata normal form. 0/1589 useless extension candidates. Maximal degree in co-relation 2522. Up to 704 conditions per place. [2022-11-18 20:28:14,535 INFO L137 encePairwiseOnDemand]: 580/585 looper letters, 35 selfloop transitions, 1 changer transitions 0/406 dead transitions. [2022-11-18 20:28:14,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 406 transitions, 904 flow [2022-11-18 20:28:14,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:14,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1411 transitions. [2022-11-18 20:28:14,540 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.803988603988604 [2022-11-18 20:28:14,541 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1411 transitions. [2022-11-18 20:28:14,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1411 transitions. [2022-11-18 20:28:14,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:14,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1411 transitions. [2022-11-18 20:28:14,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states 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 20:28:14,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:14,550 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:14,550 INFO L175 Difference]: Start difference. First operand has 405 places, 410 transitions, 840 flow. Second operand 3 states and 1411 transitions. [2022-11-18 20:28:14,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 406 transitions, 904 flow [2022-11-18 20:28:14,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 406 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:14,560 INFO L231 Difference]: Finished difference. Result has 401 places, 406 transitions, 830 flow [2022-11-18 20:28:14,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=830, PETRI_PLACES=401, PETRI_TRANSITIONS=406} [2022-11-18 20:28:14,562 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -80 predicate places. [2022-11-18 20:28:14,562 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 406 transitions, 830 flow [2022-11-18 20:28:14,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states 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 20:28:14,563 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:14,563 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:14,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:28:14,564 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:14,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:14,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1993079262, now seen corresponding path program 1 times [2022-11-18 20:28:14,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:14,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018670695] [2022-11-18 20:28:14,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:14,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:14,636 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 20:28:14,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:14,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018670695] [2022-11-18 20:28:14,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018670695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:14,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:14,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:14,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673724227] [2022-11-18 20:28:14,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:14,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:14,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:14,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:14,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:14,641 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-18 20:28:14,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 406 transitions, 830 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 20:28:14,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:14,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-18 20:28:14,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:15,016 INFO L130 PetriNetUnfolder]: 414/1453 cut-off events. [2022-11-18 20:28:15,016 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-18 20:28:15,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2098 conditions, 1453 events. 414/1453 cut-off events. For 84/120 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6869 event pairs, 192 based on Foata normal form. 0/1251 useless extension candidates. Maximal degree in co-relation 1980. Up to 556 conditions per place. [2022-11-18 20:28:15,033 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/405 dead transitions. [2022-11-18 20:28:15,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 405 transitions, 890 flow [2022-11-18 20:28:15,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:15,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:15,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-18 20:28:15,037 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-18 20:28:15,038 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-18 20:28:15,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-18 20:28:15,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:15,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-18 20:28:15,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 482.6666666666667) internal successors, (1448), 3 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states 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 20:28:15,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:15,048 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:15,048 INFO L175 Difference]: Start difference. First operand has 401 places, 406 transitions, 830 flow. Second operand 3 states and 1448 transitions. [2022-11-18 20:28:15,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 405 transitions, 890 flow [2022-11-18 20:28:15,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 405 transitions, 889 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:28:15,056 INFO L231 Difference]: Finished difference. Result has 401 places, 405 transitions, 831 flow [2022-11-18 20:28:15,057 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=831, PETRI_PLACES=401, PETRI_TRANSITIONS=405} [2022-11-18 20:28:15,058 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -80 predicate places. [2022-11-18 20:28:15,059 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 405 transitions, 831 flow [2022-11-18 20:28:15,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 20:28:15,059 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:15,060 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:15,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:28:15,060 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:15,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:15,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1341310136, now seen corresponding path program 1 times [2022-11-18 20:28:15,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:15,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647238550] [2022-11-18 20:28:15,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:15,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:15,700 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 20:28:15,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:15,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647238550] [2022-11-18 20:28:15,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647238550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:15,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:15,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:28:15,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668631429] [2022-11-18 20:28:15,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:15,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:28:15,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:15,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:28:15,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:28:15,705 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 585 [2022-11-18 20:28:15,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 405 transitions, 831 flow. Second operand has 6 states, 6 states have (on average 414.8333333333333) internal successors, (2489), 6 states have internal predecessors, (2489), 0 states have call successors, (0), 0 states 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 20:28:15,708 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:15,708 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 585 [2022-11-18 20:28:15,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:40,062 INFO L130 PetriNetUnfolder]: 76386/104927 cut-off events. [2022-11-18 20:28:40,062 INFO L131 PetriNetUnfolder]: For 851/856 co-relation queries the response was YES. [2022-11-18 20:28:40,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199215 conditions, 104927 events. 76386/104927 cut-off events. For 851/856 co-relation queries the response was YES. Maximal size of possible extension queue 2056. Compared 673484 event pairs, 50406 based on Foata normal form. 0/95202 useless extension candidates. Maximal degree in co-relation 199098. Up to 92232 conditions per place. [2022-11-18 20:28:41,509 INFO L137 encePairwiseOnDemand]: 579/585 looper letters, 73 selfloop transitions, 5 changer transitions 0/404 dead transitions. [2022-11-18 20:28:41,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 404 transitions, 985 flow [2022-11-18 20:28:41,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:28:41,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:28:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2557 transitions. [2022-11-18 20:28:41,517 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7284900284900285 [2022-11-18 20:28:41,518 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2557 transitions. [2022-11-18 20:28:41,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2557 transitions. [2022-11-18 20:28:41,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:41,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2557 transitions. [2022-11-18 20:28:41,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 426.1666666666667) internal successors, (2557), 6 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states 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 20:28:41,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 585.0) internal successors, (4095), 7 states have internal predecessors, (4095), 0 states have call successors, (0), 0 states 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 20:28:41,536 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 585.0) internal successors, (4095), 7 states have internal predecessors, (4095), 0 states have call successors, (0), 0 states 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 20:28:41,537 INFO L175 Difference]: Start difference. First operand has 401 places, 405 transitions, 831 flow. Second operand 6 states and 2557 transitions. [2022-11-18 20:28:41,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 404 transitions, 985 flow [2022-11-18 20:28:41,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 404 transitions, 981 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:41,546 INFO L231 Difference]: Finished difference. Result has 403 places, 404 transitions, 835 flow [2022-11-18 20:28:41,548 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=825, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=835, PETRI_PLACES=403, PETRI_TRANSITIONS=404} [2022-11-18 20:28:41,548 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -78 predicate places. [2022-11-18 20:28:41,549 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 404 transitions, 835 flow [2022-11-18 20:28:41,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 414.8333333333333) internal successors, (2489), 6 states have internal predecessors, (2489), 0 states have call successors, (0), 0 states 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 20:28:41,550 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:41,550 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:41,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:28:41,551 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:41,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:41,551 INFO L85 PathProgramCache]: Analyzing trace with hash 677246508, now seen corresponding path program 1 times [2022-11-18 20:28:41,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:41,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279577942] [2022-11-18 20:28:41,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:41,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:41,626 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 20:28:41,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:41,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279577942] [2022-11-18 20:28:41,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279577942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:41,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:41,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:41,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768266780] [2022-11-18 20:28:41,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:41,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:41,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:41,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:41,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:41,634 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 585 [2022-11-18 20:28:41,635 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 404 transitions, 835 flow. Second operand has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states 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 20:28:41,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:41,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 585 [2022-11-18 20:28:41,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:42,474 INFO L130 PetriNetUnfolder]: 765/2589 cut-off events. [2022-11-18 20:28:42,474 INFO L131 PetriNetUnfolder]: For 147/200 co-relation queries the response was YES. [2022-11-18 20:28:42,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3767 conditions, 2589 events. 765/2589 cut-off events. For 147/200 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 16467 event pairs, 228 based on Foata normal form. 0/2210 useless extension candidates. Maximal degree in co-relation 3749. Up to 540 conditions per place. [2022-11-18 20:28:42,515 INFO L137 encePairwiseOnDemand]: 576/585 looper letters, 59 selfloop transitions, 3 changer transitions 0/420 dead transitions. [2022-11-18 20:28:42,515 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 420 transitions, 1003 flow [2022-11-18 20:28:42,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:42,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:42,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1439 transitions. [2022-11-18 20:28:42,520 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.81994301994302 [2022-11-18 20:28:42,521 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1439 transitions. [2022-11-18 20:28:42,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1439 transitions. [2022-11-18 20:28:42,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:42,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1439 transitions. [2022-11-18 20:28:42,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 479.6666666666667) internal successors, (1439), 3 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states 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 20:28:42,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:42,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:42,532 INFO L175 Difference]: Start difference. First operand has 403 places, 404 transitions, 835 flow. Second operand 3 states and 1439 transitions. [2022-11-18 20:28:42,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 420 transitions, 1003 flow [2022-11-18 20:28:42,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 420 transitions, 993 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:28:42,545 INFO L231 Difference]: Finished difference. Result has 396 places, 400 transitions, 833 flow [2022-11-18 20:28:42,545 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=833, PETRI_PLACES=396, PETRI_TRANSITIONS=400} [2022-11-18 20:28:42,546 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -85 predicate places. [2022-11-18 20:28:42,548 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 400 transitions, 833 flow [2022-11-18 20:28:42,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states 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 20:28:42,549 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:42,550 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:42,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:28:42,550 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:42,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:42,551 INFO L85 PathProgramCache]: Analyzing trace with hash -2001077520, now seen corresponding path program 1 times [2022-11-18 20:28:42,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:42,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268521307] [2022-11-18 20:28:42,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:42,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:42,623 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 20:28:42,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:42,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268521307] [2022-11-18 20:28:42,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268521307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:42,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:42,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:42,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459222225] [2022-11-18 20:28:42,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:42,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:42,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:42,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:42,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:42,628 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-18 20:28:42,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 400 transitions, 833 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 20:28:42,631 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:42,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-18 20:28:42,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:43,954 INFO L130 PetriNetUnfolder]: 1327/3953 cut-off events. [2022-11-18 20:28:43,955 INFO L131 PetriNetUnfolder]: For 533/613 co-relation queries the response was YES. [2022-11-18 20:28:43,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6157 conditions, 3953 events. 1327/3953 cut-off events. For 533/613 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 28086 event pairs, 402 based on Foata normal form. 0/3310 useless extension candidates. Maximal degree in co-relation 6037. Up to 965 conditions per place. [2022-11-18 20:28:44,000 INFO L137 encePairwiseOnDemand]: 581/585 looper letters, 51 selfloop transitions, 4 changer transitions 0/422 dead transitions. [2022-11-18 20:28:44,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 422 transitions, 1010 flow [2022-11-18 20:28:44,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:44,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:44,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1468 transitions. [2022-11-18 20:28:44,004 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8364672364672364 [2022-11-18 20:28:44,005 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1468 transitions. [2022-11-18 20:28:44,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1468 transitions. [2022-11-18 20:28:44,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:44,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1468 transitions. [2022-11-18 20:28:44,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 489.3333333333333) internal successors, (1468), 3 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states 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 20:28:44,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:44,013 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:44,014 INFO L175 Difference]: Start difference. First operand has 396 places, 400 transitions, 833 flow. Second operand 3 states and 1468 transitions. [2022-11-18 20:28:44,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 422 transitions, 1010 flow [2022-11-18 20:28:44,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 422 transitions, 1000 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:44,024 INFO L231 Difference]: Finished difference. Result has 397 places, 402 transitions, 857 flow [2022-11-18 20:28:44,025 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=825, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=857, PETRI_PLACES=397, PETRI_TRANSITIONS=402} [2022-11-18 20:28:44,025 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -84 predicate places. [2022-11-18 20:28:44,026 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 402 transitions, 857 flow [2022-11-18 20:28:44,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 20:28:44,026 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:44,027 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:44,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:28:44,027 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:44,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:44,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2125862161, now seen corresponding path program 1 times [2022-11-18 20:28:44,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:44,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496053766] [2022-11-18 20:28:44,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:44,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:44,086 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 20:28:44,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:44,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496053766] [2022-11-18 20:28:44,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496053766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:44,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:44,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:44,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141658472] [2022-11-18 20:28:44,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:44,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:44,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:44,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:44,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:44,090 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 475 out of 585 [2022-11-18 20:28:44,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 402 transitions, 857 flow. Second operand has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states 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 20:28:44,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:44,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 475 of 585 [2022-11-18 20:28:44,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:45,820 INFO L130 PetriNetUnfolder]: 2608/7096 cut-off events. [2022-11-18 20:28:45,820 INFO L131 PetriNetUnfolder]: For 1467/1661 co-relation queries the response was YES. [2022-11-18 20:28:45,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11779 conditions, 7096 events. 2608/7096 cut-off events. For 1467/1661 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 58574 event pairs, 1284 based on Foata normal form. 0/5833 useless extension candidates. Maximal degree in co-relation 11660. Up to 1733 conditions per place. [2022-11-18 20:28:45,886 INFO L137 encePairwiseOnDemand]: 581/585 looper letters, 60 selfloop transitions, 3 changer transitions 0/431 dead transitions. [2022-11-18 20:28:45,887 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 431 transitions, 1086 flow [2022-11-18 20:28:45,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:45,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:45,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1479 transitions. [2022-11-18 20:28:45,891 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8427350427350427 [2022-11-18 20:28:45,891 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1479 transitions. [2022-11-18 20:28:45,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1479 transitions. [2022-11-18 20:28:45,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:45,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1479 transitions. [2022-11-18 20:28:45,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.0) internal successors, (1479), 3 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states 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 20:28:45,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:45,900 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:45,900 INFO L175 Difference]: Start difference. First operand has 397 places, 402 transitions, 857 flow. Second operand 3 states and 1479 transitions. [2022-11-18 20:28:45,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 431 transitions, 1086 flow [2022-11-18 20:28:45,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 431 transitions, 1072 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:45,909 INFO L231 Difference]: Finished difference. Result has 398 places, 403 transitions, 867 flow [2022-11-18 20:28:45,909 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=867, PETRI_PLACES=398, PETRI_TRANSITIONS=403} [2022-11-18 20:28:45,910 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -83 predicate places. [2022-11-18 20:28:45,910 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 403 transitions, 867 flow [2022-11-18 20:28:45,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states 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 20:28:45,911 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:45,911 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:45,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:28:45,911 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:45,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:45,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1734107178, now seen corresponding path program 1 times [2022-11-18 20:28:45,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:45,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833196826] [2022-11-18 20:28:45,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:45,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:45,961 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 20:28:45,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:45,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833196826] [2022-11-18 20:28:45,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833196826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:45,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:45,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:45,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094322590] [2022-11-18 20:28:45,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:45,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:45,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:45,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:45,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:45,965 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-18 20:28:45,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 403 transitions, 867 flow. Second operand has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 20:28:45,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:45,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-18 20:28:45,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:49,012 INFO L130 PetriNetUnfolder]: 5168/13698 cut-off events. [2022-11-18 20:28:49,012 INFO L131 PetriNetUnfolder]: For 2907/3295 co-relation queries the response was YES. [2022-11-18 20:28:49,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23417 conditions, 13698 events. 5168/13698 cut-off events. For 2907/3295 co-relation queries the response was YES. Maximal size of possible extension queue 431. Compared 129754 event pairs, 2568 based on Foata normal form. 0/11193 useless extension candidates. Maximal degree in co-relation 23295. Up to 3467 conditions per place. [2022-11-18 20:28:49,228 INFO L137 encePairwiseOnDemand]: 581/585 looper letters, 65 selfloop transitions, 4 changer transitions 0/434 dead transitions. [2022-11-18 20:28:49,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 434 transitions, 1118 flow [2022-11-18 20:28:49,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:49,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:49,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1472 transitions. [2022-11-18 20:28:49,234 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8387464387464387 [2022-11-18 20:28:49,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1472 transitions. [2022-11-18 20:28:49,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1472 transitions. [2022-11-18 20:28:49,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:49,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1472 transitions. [2022-11-18 20:28:49,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 490.6666666666667) internal successors, (1472), 3 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 20:28:49,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:49,244 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:49,244 INFO L175 Difference]: Start difference. First operand has 398 places, 403 transitions, 867 flow. Second operand 3 states and 1472 transitions. [2022-11-18 20:28:49,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 434 transitions, 1118 flow [2022-11-18 20:28:49,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 434 transitions, 1108 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:49,255 INFO L231 Difference]: Finished difference. Result has 399 places, 405 transitions, 891 flow [2022-11-18 20:28:49,256 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=891, PETRI_PLACES=399, PETRI_TRANSITIONS=405} [2022-11-18 20:28:49,257 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -82 predicate places. [2022-11-18 20:28:49,257 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 405 transitions, 891 flow [2022-11-18 20:28:49,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.3333333333333) internal successors, (1420), 3 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states 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 20:28:49,258 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:49,258 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:28:49,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 20:28:49,259 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:49,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:49,259 INFO L85 PathProgramCache]: Analyzing trace with hash -344228996, now seen corresponding path program 1 times [2022-11-18 20:28:49,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:49,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040493849] [2022-11-18 20:28:49,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:49,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:49,310 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 20:28:49,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:49,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040493849] [2022-11-18 20:28:49,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040493849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:49,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:49,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:49,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020296774] [2022-11-18 20:28:49,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:49,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:49,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:49,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:49,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:49,315 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 585 [2022-11-18 20:28:49,316 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 405 transitions, 891 flow. Second operand has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states 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 20:28:49,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:49,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 585 [2022-11-18 20:28:49,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:28:53,439 INFO L130 PetriNetUnfolder]: 6642/17051 cut-off events. [2022-11-18 20:28:53,439 INFO L131 PetriNetUnfolder]: For 4460/4831 co-relation queries the response was YES. [2022-11-18 20:28:53,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30215 conditions, 17051 events. 6642/17051 cut-off events. For 4460/4831 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 164565 event pairs, 853 based on Foata normal form. 4/14429 useless extension candidates. Maximal degree in co-relation 30092. Up to 8056 conditions per place. [2022-11-18 20:28:53,661 INFO L137 encePairwiseOnDemand]: 579/585 looper letters, 65 selfloop transitions, 4 changer transitions 0/430 dead transitions. [2022-11-18 20:28:53,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 430 transitions, 1123 flow [2022-11-18 20:28:53,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:53,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:28:53,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1454 transitions. [2022-11-18 20:28:53,665 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8284900284900285 [2022-11-18 20:28:53,665 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1454 transitions. [2022-11-18 20:28:53,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1454 transitions. [2022-11-18 20:28:53,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:28:53,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1454 transitions. [2022-11-18 20:28:53,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.6666666666667) internal successors, (1454), 3 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states 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 20:28:53,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:53,674 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 585.0) internal successors, (2340), 4 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 20:28:53,674 INFO L175 Difference]: Start difference. First operand has 399 places, 405 transitions, 891 flow. Second operand 3 states and 1454 transitions. [2022-11-18 20:28:53,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 430 transitions, 1123 flow [2022-11-18 20:28:53,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 430 transitions, 1109 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:28:53,685 INFO L231 Difference]: Finished difference. Result has 398 places, 406 transitions, 903 flow [2022-11-18 20:28:53,686 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=585, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=903, PETRI_PLACES=398, PETRI_TRANSITIONS=406} [2022-11-18 20:28:53,687 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -83 predicate places. [2022-11-18 20:28:53,687 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 406 transitions, 903 flow [2022-11-18 20:28:53,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states 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 20:28:53,688 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:28:53,688 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:53,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 20:28:53,688 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2022-11-18 20:28:53,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:53,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1329265602, now seen corresponding path program 1 times [2022-11-18 20:28:53,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:53,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517132680] [2022-11-18 20:28:53,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:53,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:53,739 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 20:28:53,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:53,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517132680] [2022-11-18 20:28:53,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517132680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:53,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:53,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:53,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040465767] [2022-11-18 20:28:53,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:53,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:53,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:53,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:53,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:53,743 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 585 [2022-11-18 20:28:53,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 406 transitions, 903 flow. Second operand has 3 states, 3 states have (on average 467.3333333333333) internal successors, (1402), 3 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states 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 20:28:53,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:28:53,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 585 [2022-11-18 20:28:53,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand