./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8/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_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8 --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-e04fb08 [2022-11-16 12:46:06,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:46:06,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:46:07,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:46:07,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:46:07,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:46:07,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:46:07,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:46:07,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:46:07,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:46:07,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:46:07,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:46:07,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:46:07,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:46:07,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:46:07,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:46:07,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:46:07,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:46:07,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:46:07,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:46:07,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:46:07,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:46:07,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:46:07,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:46:07,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:46:07,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:46:07,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:46:07,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:46:07,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:46:07,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:46:07,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:46:07,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:46:07,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:46:07,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:46:07,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:46:07,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:46:07,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:46:07,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:46:07,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:46:07,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:46:07,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:46:07,115 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:46:07,162 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:46:07,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:46:07,163 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:46:07,163 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:46:07,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:46:07,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:46:07,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:46:07,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:46:07,166 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:46:07,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:46:07,168 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:46:07,168 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:46:07,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:46:07,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:46:07,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:46:07,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:46:07,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:46:07,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:46:07,170 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:46:07,171 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:46:07,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:46:07,171 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:46:07,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:46:07,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:46:07,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:46:07,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:46:07,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:46:07,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:46:07,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:46:07,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:46:07,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:46:07,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:46:07,177 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:46:07,177 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:46:07,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:46:07,178 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_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 [2022-11-16 12:46:07,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:46:07,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:46:07,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:46:07,508 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:46:07,509 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:46:07,511 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-11-16 12:46:07,597 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8/data/6bac0b260/ef329b6cba6841898d857a0ae5e132db/FLAGd7905798c [2022-11-16 12:46:08,167 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:46:08,167 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccb21ee-2178-43b7-8c9e-b1ac582633ad/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-11-16 12:46:08,175 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8/data/6bac0b260/ef329b6cba6841898d857a0ae5e132db/FLAGd7905798c [2022-11-16 12:46:08,506 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8/data/6bac0b260/ef329b6cba6841898d857a0ae5e132db [2022-11-16 12:46:08,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:46:08,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:46:08,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:46:08,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:46:08,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:46:08,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:46:08" (1/1) ... [2022-11-16 12:46:08,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5907ef48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:08, skipping insertion in model container [2022-11-16 12:46:08,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:46:08" (1/1) ... [2022-11-16 12:46:08,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:46:08,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:46:08,869 WARN L229 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_eccb21ee-2178-43b7-8c9e-b1ac582633ad/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-11-16 12:46:08,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:46:08,895 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:46:08,998 WARN L229 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_eccb21ee-2178-43b7-8c9e-b1ac582633ad/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-11-16 12:46:09,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:46:09,026 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:46:09,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:09 WrapperNode [2022-11-16 12:46:09,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:46:09,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:46:09,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:46:09,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:46:09,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:09" (1/1) ... [2022-11-16 12:46:09,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:09" (1/1) ... [2022-11-16 12:46:09,117 INFO L138 Inliner]: procedures = 29, calls = 88, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 673 [2022-11-16 12:46:09,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:46:09,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:46:09,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:46:09,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:46:09,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:09" (1/1) ... [2022-11-16 12:46:09,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:09" (1/1) ... [2022-11-16 12:46:09,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:09" (1/1) ... [2022-11-16 12:46:09,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:09" (1/1) ... [2022-11-16 12:46:09,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:09" (1/1) ... [2022-11-16 12:46:09,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:09" (1/1) ... [2022-11-16 12:46:09,161 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:09" (1/1) ... [2022-11-16 12:46:09,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:09" (1/1) ... [2022-11-16 12:46:09,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:46:09,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:46:09,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:46:09,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:46:09,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:09" (1/1) ... [2022-11-16 12:46:09,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:46:09,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:46:09,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:46:09,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccb21ee-2178-43b7-8c9e-b1ac582633ad/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:46:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:46:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:46:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:46:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:46:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:46:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:46:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:46:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:46:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 12:46:09,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 12:46:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-16 12:46:09,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-16 12:46:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:46:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-16 12:46:09,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-16 12:46:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-16 12:46:09,273 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-16 12:46:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:46:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:46:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:46:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:46:09,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:46:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:46:09,276 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:46:09,529 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:46:09,531 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:46:10,678 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:46:11,077 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:46:11,077 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-16 12:46:11,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:11 BoogieIcfgContainer [2022-11-16 12:46:11,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:46:11,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:46:11,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:46:11,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:46:11,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:46:08" (1/3) ... [2022-11-16 12:46:11,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ba8625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:46:11, skipping insertion in model container [2022-11-16 12:46:11,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:09" (2/3) ... [2022-11-16 12:46:11,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ba8625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:46:11, skipping insertion in model container [2022-11-16 12:46:11,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:11" (3/3) ... [2022-11-16 12:46:11,097 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2022-11-16 12:46:11,110 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:46:11,121 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:46:11,121 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 89 error locations. [2022-11-16 12:46:11,122 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:46:11,315 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-16 12:46:11,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 572 places, 581 transitions, 1234 flow [2022-11-16 12:46:11,600 INFO L130 PetriNetUnfolder]: 26/505 cut-off events. [2022-11-16 12:46:11,601 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 12:46:11,614 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. [2022-11-16 12:46:11,614 INFO L82 GeneralOperation]: Start removeDead. Operand has 572 places, 581 transitions, 1234 flow [2022-11-16 12:46:11,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 481 places, 487 transitions, 1022 flow [2022-11-16 12:46:11,657 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:46:11,666 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;@5efe0b17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:46:11,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 157 error locations. [2022-11-16 12:46:11,676 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2022-11-16 12:46:11,676 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:46:11,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:11,677 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] [2022-11-16 12:46:11,678 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)] === [2022-11-16 12:46:11,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:11,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1952155874, now seen corresponding path program 1 times [2022-11-16 12:46:11,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:11,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6922782] [2022-11-16 12:46:11,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:11,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:12,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:12,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:12,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6922782] [2022-11-16 12:46:12,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6922782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:12,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:12,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:12,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017096940] [2022-11-16 12:46:12,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:12,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:12,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:12,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:12,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:12,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 585 [2022-11-16 12:46:12,094 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) [2022-11-16 12:46:12,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:12,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 585 [2022-11-16 12:46:12,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:12,897 INFO L130 PetriNetUnfolder]: 483/1785 cut-off events. [2022-11-16 12:46:12,897 INFO L131 PetriNetUnfolder]: For 377/416 co-relation queries the response was YES. [2022-11-16 12:46:12,909 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. [2022-11-16 12:46:12,925 INFO L137 encePairwiseOnDemand]: 521/585 looper letters, 35 selfloop transitions, 2 changer transitions 4/425 dead transitions. [2022-11-16 12:46:12,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 425 transitions, 972 flow [2022-11-16 12:46:12,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:12,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:12,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1488 transitions. [2022-11-16 12:46:12,948 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8478632478632478 [2022-11-16 12:46:12,949 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1488 transitions. [2022-11-16 12:46:12,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1488 transitions. [2022-11-16 12:46:12,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:12,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1488 transitions. [2022-11-16 12:46:12,964 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) [2022-11-16 12:46:12,976 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) [2022-11-16 12:46:12,978 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) [2022-11-16 12:46:12,980 INFO L175 Difference]: Start difference. First operand has 481 places, 487 transitions, 1022 flow. Second operand 3 states and 1488 transitions. [2022-11-16 12:46:12,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 425 transitions, 972 flow [2022-11-16 12:46:12,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 425 transitions, 940 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-16 12:46:13,012 INFO L231 Difference]: Finished difference. Result has 420 places, 421 transitions, 862 flow [2022-11-16 12:46:13,015 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} [2022-11-16 12:46:13,020 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -61 predicate places. [2022-11-16 12:46:13,020 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 421 transitions, 862 flow [2022-11-16 12:46:13,022 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) [2022-11-16 12:46:13,022 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:13,022 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] [2022-11-16 12:46:13,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:46:13,023 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)] === [2022-11-16 12:46:13,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:13,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1416464009, now seen corresponding path program 1 times [2022-11-16 12:46:13,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:13,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940645178] [2022-11-16 12:46:13,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:13,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:13,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:13,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:13,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940645178] [2022-11-16 12:46:13,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940645178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:13,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:13,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:13,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336503867] [2022-11-16 12:46:13,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:13,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:13,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:13,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:13,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:13,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 585 [2022-11-16 12:46:13,137 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) [2022-11-16 12:46:13,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:13,137 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 585 [2022-11-16 12:46:13,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:13,758 INFO L130 PetriNetUnfolder]: 483/1602 cut-off events. [2022-11-16 12:46:13,758 INFO L131 PetriNetUnfolder]: For 96/132 co-relation queries the response was YES. [2022-11-16 12:46:13,765 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. [2022-11-16 12:46:13,778 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 35 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2022-11-16 12:46:13,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 420 transitions, 934 flow [2022-11-16 12:46:13,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:13,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:13,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1427 transitions. [2022-11-16 12:46:13,782 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8131054131054131 [2022-11-16 12:46:13,782 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1427 transitions. [2022-11-16 12:46:13,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1427 transitions. [2022-11-16 12:46:13,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:13,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1427 transitions. [2022-11-16 12:46:13,787 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) [2022-11-16 12:46:13,791 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) [2022-11-16 12:46:13,793 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) [2022-11-16 12:46:13,793 INFO L175 Difference]: Start difference. First operand has 420 places, 421 transitions, 862 flow. Second operand 3 states and 1427 transitions. [2022-11-16 12:46:13,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 420 transitions, 934 flow [2022-11-16 12:46:13,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 420 transitions, 930 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:13,803 INFO L231 Difference]: Finished difference. Result has 415 places, 420 transitions, 860 flow [2022-11-16 12:46:13,803 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} [2022-11-16 12:46:13,804 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -66 predicate places. [2022-11-16 12:46:13,804 INFO L495 AbstractCegarLoop]: Abstraction has has 415 places, 420 transitions, 860 flow [2022-11-16 12:46:13,806 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) [2022-11-16 12:46:13,806 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:13,806 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] [2022-11-16 12:46:13,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:46:13,806 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)] === [2022-11-16 12:46:13,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:13,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1848613338, now seen corresponding path program 1 times [2022-11-16 12:46:13,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:13,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953275466] [2022-11-16 12:46:13,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:13,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:13,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:13,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:13,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953275466] [2022-11-16 12:46:13,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953275466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:13,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:13,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:13,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447090052] [2022-11-16 12:46:13,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:13,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:13,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:13,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:13,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:13,933 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-16 12:46:13,935 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) [2022-11-16 12:46:13,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:13,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-16 12:46:13,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:14,492 INFO L130 PetriNetUnfolder]: 414/1475 cut-off events. [2022-11-16 12:46:14,493 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-16 12:46:14,500 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. [2022-11-16 12:46:14,512 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/419 dead transitions. [2022-11-16 12:46:14,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 419 transitions, 920 flow [2022-11-16 12:46:14,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:14,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:14,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-16 12:46:14,516 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-16 12:46:14,517 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-16 12:46:14,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-16 12:46:14,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:14,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-16 12:46:14,523 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) [2022-11-16 12:46:14,527 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) [2022-11-16 12:46:14,529 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) [2022-11-16 12:46:14,529 INFO L175 Difference]: Start difference. First operand has 415 places, 420 transitions, 860 flow. Second operand 3 states and 1448 transitions. [2022-11-16 12:46:14,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 419 transitions, 920 flow [2022-11-16 12:46:14,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 419 transitions, 916 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:14,540 INFO L231 Difference]: Finished difference. Result has 414 places, 419 transitions, 858 flow [2022-11-16 12:46:14,540 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} [2022-11-16 12:46:14,543 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -67 predicate places. [2022-11-16 12:46:14,543 INFO L495 AbstractCegarLoop]: Abstraction has has 414 places, 419 transitions, 858 flow [2022-11-16 12:46:14,544 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) [2022-11-16 12:46:14,544 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:14,545 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] [2022-11-16 12:46:14,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:46:14,545 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)] === [2022-11-16 12:46:14,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:14,546 INFO L85 PathProgramCache]: Analyzing trace with hash 2072807576, now seen corresponding path program 1 times [2022-11-16 12:46:14,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:14,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010292871] [2022-11-16 12:46:14,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:14,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:14,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:14,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:14,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010292871] [2022-11-16 12:46:14,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010292871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:14,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:14,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:14,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888741507] [2022-11-16 12:46:14,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:14,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:14,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:14,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:14,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:14,650 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-16 12:46:14,653 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) [2022-11-16 12:46:14,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:14,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-16 12:46:14,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:15,123 INFO L130 PetriNetUnfolder]: 414/1474 cut-off events. [2022-11-16 12:46:15,124 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-16 12:46:15,137 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. [2022-11-16 12:46:15,151 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2022-11-16 12:46:15,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 418 transitions, 918 flow [2022-11-16 12:46:15,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:15,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:15,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-16 12:46:15,156 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-16 12:46:15,156 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-16 12:46:15,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-16 12:46:15,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:15,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-16 12:46:15,163 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) [2022-11-16 12:46:15,167 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) [2022-11-16 12:46:15,169 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) [2022-11-16 12:46:15,170 INFO L175 Difference]: Start difference. First operand has 414 places, 419 transitions, 858 flow. Second operand 3 states and 1448 transitions. [2022-11-16 12:46:15,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 418 transitions, 918 flow [2022-11-16 12:46:15,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 418 transitions, 914 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:15,179 INFO L231 Difference]: Finished difference. Result has 413 places, 418 transitions, 856 flow [2022-11-16 12:46:15,180 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} [2022-11-16 12:46:15,181 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -68 predicate places. [2022-11-16 12:46:15,181 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 418 transitions, 856 flow [2022-11-16 12:46:15,182 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) [2022-11-16 12:46:15,183 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:15,183 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] [2022-11-16 12:46:15,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:46:15,183 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)] === [2022-11-16 12:46:15,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:15,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1911408416, now seen corresponding path program 1 times [2022-11-16 12:46:15,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:15,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384493767] [2022-11-16 12:46:15,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:15,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:15,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:15,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:15,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384493767] [2022-11-16 12:46:15,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384493767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:15,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:15,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:15,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458323514] [2022-11-16 12:46:15,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:15,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:15,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:15,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:15,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:15,235 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-16 12:46:15,237 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) [2022-11-16 12:46:15,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:15,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-16 12:46:15,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:15,651 INFO L130 PetriNetUnfolder]: 414/1473 cut-off events. [2022-11-16 12:46:15,652 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-16 12:46:15,660 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. [2022-11-16 12:46:15,672 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/417 dead transitions. [2022-11-16 12:46:15,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 417 transitions, 916 flow [2022-11-16 12:46:15,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:15,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:15,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-16 12:46:15,676 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-16 12:46:15,677 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-16 12:46:15,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-16 12:46:15,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:15,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-16 12:46:15,682 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) [2022-11-16 12:46:15,686 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) [2022-11-16 12:46:15,688 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) [2022-11-16 12:46:15,688 INFO L175 Difference]: Start difference. First operand has 413 places, 418 transitions, 856 flow. Second operand 3 states and 1448 transitions. [2022-11-16 12:46:15,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 417 transitions, 916 flow [2022-11-16 12:46:15,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 417 transitions, 912 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:15,701 INFO L231 Difference]: Finished difference. Result has 412 places, 417 transitions, 854 flow [2022-11-16 12:46:15,702 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} [2022-11-16 12:46:15,705 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -69 predicate places. [2022-11-16 12:46:15,705 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 417 transitions, 854 flow [2022-11-16 12:46:15,706 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) [2022-11-16 12:46:15,707 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:15,707 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] [2022-11-16 12:46:15,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:46:15,708 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)] === [2022-11-16 12:46:15,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:15,709 INFO L85 PathProgramCache]: Analyzing trace with hash 214477739, now seen corresponding path program 1 times [2022-11-16 12:46:15,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:15,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234453515] [2022-11-16 12:46:15,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:15,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:15,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:15,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:15,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234453515] [2022-11-16 12:46:15,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234453515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:15,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:15,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:15,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539356555] [2022-11-16 12:46:15,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:15,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:15,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:15,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:15,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:15,804 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-16 12:46:15,806 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) [2022-11-16 12:46:15,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:15,807 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-16 12:46:15,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:16,251 INFO L130 PetriNetUnfolder]: 414/1472 cut-off events. [2022-11-16 12:46:16,252 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-16 12:46:16,257 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. [2022-11-16 12:46:16,266 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/416 dead transitions. [2022-11-16 12:46:16,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 416 transitions, 914 flow [2022-11-16 12:46:16,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:16,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:16,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-16 12:46:16,271 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-16 12:46:16,271 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-16 12:46:16,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-16 12:46:16,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:16,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-16 12:46:16,276 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) [2022-11-16 12:46:16,279 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) [2022-11-16 12:46:16,281 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) [2022-11-16 12:46:16,281 INFO L175 Difference]: Start difference. First operand has 412 places, 417 transitions, 854 flow. Second operand 3 states and 1448 transitions. [2022-11-16 12:46:16,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 416 transitions, 914 flow [2022-11-16 12:46:16,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 416 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:16,289 INFO L231 Difference]: Finished difference. Result has 411 places, 416 transitions, 852 flow [2022-11-16 12:46:16,290 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} [2022-11-16 12:46:16,291 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -70 predicate places. [2022-11-16 12:46:16,291 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 416 transitions, 852 flow [2022-11-16 12:46:16,292 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) [2022-11-16 12:46:16,292 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:16,292 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] [2022-11-16 12:46:16,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:46:16,293 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)] === [2022-11-16 12:46:16,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:16,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1130432985, now seen corresponding path program 1 times [2022-11-16 12:46:16,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:16,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409977747] [2022-11-16 12:46:16,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:16,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:16,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:16,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:16,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409977747] [2022-11-16 12:46:16,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409977747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:16,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:16,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:16,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132310578] [2022-11-16 12:46:16,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:16,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:16,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:16,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:16,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:16,338 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 585 [2022-11-16 12:46:16,340 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) [2022-11-16 12:46:16,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:16,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 585 [2022-11-16 12:46:16,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:16,747 INFO L130 PetriNetUnfolder]: 414/1471 cut-off events. [2022-11-16 12:46:16,747 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-16 12:46:16,755 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. [2022-11-16 12:46:16,766 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 47 selfloop transitions, 2 changer transitions 0/415 dead transitions. [2022-11-16 12:46:16,767 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 415 transitions, 948 flow [2022-11-16 12:46:16,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:16,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:16,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1412 transitions. [2022-11-16 12:46:16,771 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8045584045584045 [2022-11-16 12:46:16,771 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1412 transitions. [2022-11-16 12:46:16,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1412 transitions. [2022-11-16 12:46:16,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:16,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1412 transitions. [2022-11-16 12:46:16,776 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) [2022-11-16 12:46:16,780 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) [2022-11-16 12:46:16,781 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) [2022-11-16 12:46:16,782 INFO L175 Difference]: Start difference. First operand has 411 places, 416 transitions, 852 flow. Second operand 3 states and 1412 transitions. [2022-11-16 12:46:16,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 415 transitions, 948 flow [2022-11-16 12:46:16,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 415 transitions, 944 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:16,841 INFO L231 Difference]: Finished difference. Result has 410 places, 415 transitions, 850 flow [2022-11-16 12:46:16,842 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} [2022-11-16 12:46:16,842 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -71 predicate places. [2022-11-16 12:46:16,843 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 415 transitions, 850 flow [2022-11-16 12:46:16,843 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) [2022-11-16 12:46:16,843 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:16,844 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] [2022-11-16 12:46:16,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:46:16,844 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)] === [2022-11-16 12:46:16,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:16,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1113238568, now seen corresponding path program 1 times [2022-11-16 12:46:16,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:16,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132034272] [2022-11-16 12:46:16,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:16,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:16,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:16,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:16,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132034272] [2022-11-16 12:46:16,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132034272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:16,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:16,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:16,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328277904] [2022-11-16 12:46:16,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:16,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:16,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:16,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:16,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:16,902 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-16 12:46:16,904 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) [2022-11-16 12:46:16,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:16,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-16 12:46:16,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:17,398 INFO L130 PetriNetUnfolder]: 414/1470 cut-off events. [2022-11-16 12:46:17,398 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-16 12:46:17,406 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. [2022-11-16 12:46:17,416 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 32 selfloop transitions, 2 changer transitions 0/414 dead transitions. [2022-11-16 12:46:17,417 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 414 transitions, 916 flow [2022-11-16 12:46:17,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:17,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:17,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-16 12:46:17,421 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8216524216524217 [2022-11-16 12:46:17,421 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-16 12:46:17,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-16 12:46:17,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:17,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-16 12:46:17,425 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) [2022-11-16 12:46:17,428 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) [2022-11-16 12:46:17,429 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) [2022-11-16 12:46:17,430 INFO L175 Difference]: Start difference. First operand has 410 places, 415 transitions, 850 flow. Second operand 3 states and 1442 transitions. [2022-11-16 12:46:17,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 414 transitions, 916 flow [2022-11-16 12:46:17,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 414 transitions, 912 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:17,437 INFO L231 Difference]: Finished difference. Result has 409 places, 414 transitions, 848 flow [2022-11-16 12:46:17,438 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} [2022-11-16 12:46:17,439 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -72 predicate places. [2022-11-16 12:46:17,439 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 414 transitions, 848 flow [2022-11-16 12:46:17,440 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) [2022-11-16 12:46:17,441 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:17,441 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:46:17,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:46:17,441 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)] === [2022-11-16 12:46:17,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:17,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2009324339, now seen corresponding path program 1 times [2022-11-16 12:46:17,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:17,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909103223] [2022-11-16 12:46:17,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:17,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:17,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:17,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:17,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909103223] [2022-11-16 12:46:17,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909103223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:17,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:17,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:17,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850745510] [2022-11-16 12:46:17,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:17,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:17,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:17,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:17,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:17,484 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-16 12:46:17,486 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) [2022-11-16 12:46:17,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:17,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-16 12:46:17,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:17,884 INFO L130 PetriNetUnfolder]: 414/1469 cut-off events. [2022-11-16 12:46:17,884 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-16 12:46:17,891 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. [2022-11-16 12:46:17,900 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 32 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2022-11-16 12:46:17,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 413 transitions, 914 flow [2022-11-16 12:46:17,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:17,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:17,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-16 12:46:17,905 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8216524216524217 [2022-11-16 12:46:17,905 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-16 12:46:17,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-16 12:46:17,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:17,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-16 12:46:17,910 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) [2022-11-16 12:46:17,914 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) [2022-11-16 12:46:17,915 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) [2022-11-16 12:46:17,915 INFO L175 Difference]: Start difference. First operand has 409 places, 414 transitions, 848 flow. Second operand 3 states and 1442 transitions. [2022-11-16 12:46:17,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 413 transitions, 914 flow [2022-11-16 12:46:17,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 413 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:17,923 INFO L231 Difference]: Finished difference. Result has 408 places, 413 transitions, 846 flow [2022-11-16 12:46:17,924 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} [2022-11-16 12:46:17,925 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -73 predicate places. [2022-11-16 12:46:17,925 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 413 transitions, 846 flow [2022-11-16 12:46:17,926 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) [2022-11-16 12:46:17,927 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:17,927 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] [2022-11-16 12:46:17,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:46:17,927 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)] === [2022-11-16 12:46:17,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:17,928 INFO L85 PathProgramCache]: Analyzing trace with hash -919098896, now seen corresponding path program 1 times [2022-11-16 12:46:17,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:17,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063046617] [2022-11-16 12:46:17,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:17,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:17,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:17,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:17,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063046617] [2022-11-16 12:46:17,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063046617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:17,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:17,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:17,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492167868] [2022-11-16 12:46:17,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:17,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:17,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:17,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:17,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:17,974 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-16 12:46:17,975 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) [2022-11-16 12:46:17,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:17,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-16 12:46:17,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:18,339 INFO L130 PetriNetUnfolder]: 414/1468 cut-off events. [2022-11-16 12:46:18,339 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-16 12:46:18,346 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. [2022-11-16 12:46:18,356 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 32 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2022-11-16 12:46:18,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 412 transitions, 912 flow [2022-11-16 12:46:18,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:18,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:18,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-16 12:46:18,360 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8216524216524217 [2022-11-16 12:46:18,360 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-16 12:46:18,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-16 12:46:18,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:18,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-16 12:46:18,365 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) [2022-11-16 12:46:18,368 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) [2022-11-16 12:46:18,369 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) [2022-11-16 12:46:18,369 INFO L175 Difference]: Start difference. First operand has 408 places, 413 transitions, 846 flow. Second operand 3 states and 1442 transitions. [2022-11-16 12:46:18,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 412 transitions, 912 flow [2022-11-16 12:46:18,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 412 transitions, 908 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:18,378 INFO L231 Difference]: Finished difference. Result has 407 places, 412 transitions, 844 flow [2022-11-16 12:46:18,379 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} [2022-11-16 12:46:18,380 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -74 predicate places. [2022-11-16 12:46:18,380 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 412 transitions, 844 flow [2022-11-16 12:46:18,381 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) [2022-11-16 12:46:18,381 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:18,382 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] [2022-11-16 12:46:18,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:46:18,382 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)] === [2022-11-16 12:46:18,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:18,383 INFO L85 PathProgramCache]: Analyzing trace with hash 821058190, now seen corresponding path program 1 times [2022-11-16 12:46:18,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:18,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941941872] [2022-11-16 12:46:18,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:18,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:18,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:18,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:18,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941941872] [2022-11-16 12:46:18,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941941872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:18,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:18,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:18,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301979491] [2022-11-16 12:46:18,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:18,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:18,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:18,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:18,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:18,434 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 585 [2022-11-16 12:46:18,436 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) [2022-11-16 12:46:18,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:18,436 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 585 [2022-11-16 12:46:18,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:18,844 INFO L130 PetriNetUnfolder]: 414/1467 cut-off events. [2022-11-16 12:46:18,845 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-16 12:46:18,850 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. [2022-11-16 12:46:18,858 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 31 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2022-11-16 12:46:18,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 411 transitions, 908 flow [2022-11-16 12:46:18,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:18,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:18,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1441 transitions. [2022-11-16 12:46:18,862 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8210826210826211 [2022-11-16 12:46:18,863 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1441 transitions. [2022-11-16 12:46:18,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1441 transitions. [2022-11-16 12:46:18,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:18,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1441 transitions. [2022-11-16 12:46:18,867 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) [2022-11-16 12:46:18,870 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) [2022-11-16 12:46:18,870 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) [2022-11-16 12:46:18,871 INFO L175 Difference]: Start difference. First operand has 407 places, 412 transitions, 844 flow. Second operand 3 states and 1441 transitions. [2022-11-16 12:46:18,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 411 transitions, 908 flow [2022-11-16 12:46:18,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 411 transitions, 904 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:18,878 INFO L231 Difference]: Finished difference. Result has 406 places, 411 transitions, 842 flow [2022-11-16 12:46:18,879 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} [2022-11-16 12:46:18,879 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -75 predicate places. [2022-11-16 12:46:18,879 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 411 transitions, 842 flow [2022-11-16 12:46:18,880 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) [2022-11-16 12:46:18,880 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:18,880 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:46:18,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:46:18,881 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)] === [2022-11-16 12:46:18,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:18,881 INFO L85 PathProgramCache]: Analyzing trace with hash 109781360, now seen corresponding path program 1 times [2022-11-16 12:46:18,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:18,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895843416] [2022-11-16 12:46:18,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:18,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:18,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:18,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:18,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895843416] [2022-11-16 12:46:18,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895843416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:18,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:18,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:18,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777188565] [2022-11-16 12:46:18,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:18,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:18,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:18,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:18,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:18,925 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 585 [2022-11-16 12:46:18,926 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) [2022-11-16 12:46:18,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:18,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 585 [2022-11-16 12:46:18,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:19,400 INFO L130 PetriNetUnfolder]: 561/1927 cut-off events. [2022-11-16 12:46:19,401 INFO L131 PetriNetUnfolder]: For 105/144 co-relation queries the response was YES. [2022-11-16 12:46:19,411 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. [2022-11-16 12:46:19,424 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 41 selfloop transitions, 2 changer transitions 0/410 dead transitions. [2022-11-16 12:46:19,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 410 transitions, 926 flow [2022-11-16 12:46:19,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:19,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:19,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1406 transitions. [2022-11-16 12:46:19,428 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8011396011396011 [2022-11-16 12:46:19,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1406 transitions. [2022-11-16 12:46:19,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1406 transitions. [2022-11-16 12:46:19,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:19,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1406 transitions. [2022-11-16 12:46:19,433 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) [2022-11-16 12:46:19,437 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) [2022-11-16 12:46:19,437 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) [2022-11-16 12:46:19,438 INFO L175 Difference]: Start difference. First operand has 406 places, 411 transitions, 842 flow. Second operand 3 states and 1406 transitions. [2022-11-16 12:46:19,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 410 transitions, 926 flow [2022-11-16 12:46:19,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 410 transitions, 922 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:19,446 INFO L231 Difference]: Finished difference. Result has 405 places, 410 transitions, 840 flow [2022-11-16 12:46:19,447 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} [2022-11-16 12:46:19,448 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -76 predicate places. [2022-11-16 12:46:19,448 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 410 transitions, 840 flow [2022-11-16 12:46:19,449 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) [2022-11-16 12:46:19,449 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:19,449 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] [2022-11-16 12:46:19,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:46:19,450 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)] === [2022-11-16 12:46:19,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:19,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1554179993, now seen corresponding path program 1 times [2022-11-16 12:46:19,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:19,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853313310] [2022-11-16 12:46:19,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:19,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:19,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:19,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:19,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853313310] [2022-11-16 12:46:19,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853313310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:19,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:19,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:19,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785573806] [2022-11-16 12:46:19,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:19,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:19,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:19,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:19,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:19,503 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 585 [2022-11-16 12:46:19,505 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) [2022-11-16 12:46:19,506 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:19,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 585 [2022-11-16 12:46:19,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:19,955 INFO L130 PetriNetUnfolder]: 510/1832 cut-off events. [2022-11-16 12:46:19,955 INFO L131 PetriNetUnfolder]: For 99/135 co-relation queries the response was YES. [2022-11-16 12:46:19,964 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. [2022-11-16 12:46:19,974 INFO L137 encePairwiseOnDemand]: 580/585 looper letters, 35 selfloop transitions, 1 changer transitions 0/406 dead transitions. [2022-11-16 12:46:19,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 406 transitions, 904 flow [2022-11-16 12:46:19,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:19,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:19,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1411 transitions. [2022-11-16 12:46:19,978 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.803988603988604 [2022-11-16 12:46:19,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1411 transitions. [2022-11-16 12:46:19,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1411 transitions. [2022-11-16 12:46:19,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:19,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1411 transitions. [2022-11-16 12:46:19,982 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) [2022-11-16 12:46:19,984 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) [2022-11-16 12:46:19,985 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) [2022-11-16 12:46:19,985 INFO L175 Difference]: Start difference. First operand has 405 places, 410 transitions, 840 flow. Second operand 3 states and 1411 transitions. [2022-11-16 12:46:19,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 406 transitions, 904 flow [2022-11-16 12:46:19,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 406 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:19,992 INFO L231 Difference]: Finished difference. Result has 401 places, 406 transitions, 830 flow [2022-11-16 12:46:19,993 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} [2022-11-16 12:46:19,994 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -80 predicate places. [2022-11-16 12:46:19,994 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 406 transitions, 830 flow [2022-11-16 12:46:19,995 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) [2022-11-16 12:46:19,995 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:19,995 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:46:19,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:46:19,996 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)] === [2022-11-16 12:46:19,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:19,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1993079262, now seen corresponding path program 1 times [2022-11-16 12:46:19,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:19,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67099406] [2022-11-16 12:46:19,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:19,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:20,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:20,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:20,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67099406] [2022-11-16 12:46:20,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67099406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:20,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:20,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:20,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053020686] [2022-11-16 12:46:20,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:20,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:20,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:20,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:20,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:20,056 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-16 12:46:20,058 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) [2022-11-16 12:46:20,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:20,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-16 12:46:20,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:20,452 INFO L130 PetriNetUnfolder]: 414/1453 cut-off events. [2022-11-16 12:46:20,452 INFO L131 PetriNetUnfolder]: For 84/120 co-relation queries the response was YES. [2022-11-16 12:46:20,458 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. [2022-11-16 12:46:20,467 INFO L137 encePairwiseOnDemand]: 582/585 looper letters, 29 selfloop transitions, 2 changer transitions 0/405 dead transitions. [2022-11-16 12:46:20,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 405 transitions, 890 flow [2022-11-16 12:46:20,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:20,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:20,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1448 transitions. [2022-11-16 12:46:20,472 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250712250712251 [2022-11-16 12:46:20,472 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1448 transitions. [2022-11-16 12:46:20,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1448 transitions. [2022-11-16 12:46:20,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:20,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1448 transitions. [2022-11-16 12:46:20,477 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) [2022-11-16 12:46:20,481 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) [2022-11-16 12:46:20,482 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) [2022-11-16 12:46:20,482 INFO L175 Difference]: Start difference. First operand has 401 places, 406 transitions, 830 flow. Second operand 3 states and 1448 transitions. [2022-11-16 12:46:20,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 405 transitions, 890 flow [2022-11-16 12:46:20,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 405 transitions, 889 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:46:20,490 INFO L231 Difference]: Finished difference. Result has 401 places, 405 transitions, 831 flow [2022-11-16 12:46:20,491 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} [2022-11-16 12:46:20,491 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -80 predicate places. [2022-11-16 12:46:20,492 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 405 transitions, 831 flow [2022-11-16 12:46:20,492 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) [2022-11-16 12:46:20,493 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:20,493 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] [2022-11-16 12:46:20,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:46:20,493 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)] === [2022-11-16 12:46:20,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:20,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1341310136, now seen corresponding path program 1 times [2022-11-16 12:46:20,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:20,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980427467] [2022-11-16 12:46:20,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:20,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:21,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:21,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:21,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980427467] [2022-11-16 12:46:21,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980427467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:21,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:21,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:46:21,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952422629] [2022-11-16 12:46:21,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:21,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:46:21,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:21,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:46:21,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:46:21,331 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 585 [2022-11-16 12:46:21,333 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) [2022-11-16 12:46:21,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:21,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 585 [2022-11-16 12:46:21,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:44,880 INFO L130 PetriNetUnfolder]: 76386/104927 cut-off events. [2022-11-16 12:46:44,881 INFO L131 PetriNetUnfolder]: For 851/856 co-relation queries the response was YES. [2022-11-16 12:46:45,282 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. [2022-11-16 12:46:46,166 INFO L137 encePairwiseOnDemand]: 579/585 looper letters, 73 selfloop transitions, 5 changer transitions 0/404 dead transitions. [2022-11-16 12:46:46,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 404 transitions, 985 flow [2022-11-16 12:46:46,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:46:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:46:46,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2557 transitions. [2022-11-16 12:46:46,173 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7284900284900285 [2022-11-16 12:46:46,173 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2557 transitions. [2022-11-16 12:46:46,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2557 transitions. [2022-11-16 12:46:46,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:46,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2557 transitions. [2022-11-16 12:46:46,180 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) [2022-11-16 12:46:46,185 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) [2022-11-16 12:46:46,187 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) [2022-11-16 12:46:46,187 INFO L175 Difference]: Start difference. First operand has 401 places, 405 transitions, 831 flow. Second operand 6 states and 2557 transitions. [2022-11-16 12:46:46,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 404 transitions, 985 flow [2022-11-16 12:46:46,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 404 transitions, 981 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:46,194 INFO L231 Difference]: Finished difference. Result has 403 places, 404 transitions, 835 flow [2022-11-16 12:46:46,195 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} [2022-11-16 12:46:46,195 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -78 predicate places. [2022-11-16 12:46:46,195 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 404 transitions, 835 flow [2022-11-16 12:46:46,196 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) [2022-11-16 12:46:46,196 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:46,197 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] [2022-11-16 12:46:46,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:46:46,197 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)] === [2022-11-16 12:46:46,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:46,198 INFO L85 PathProgramCache]: Analyzing trace with hash 677246508, now seen corresponding path program 1 times [2022-11-16 12:46:46,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:46,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478649700] [2022-11-16 12:46:46,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:46,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:46,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:46,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:46,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478649700] [2022-11-16 12:46:46,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478649700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:46,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:46,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:46,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768985249] [2022-11-16 12:46:46,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:46,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:46,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:46,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:46,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:46,260 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 585 [2022-11-16 12:46:46,262 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) [2022-11-16 12:46:46,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:46,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 585 [2022-11-16 12:46:46,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:46,973 INFO L130 PetriNetUnfolder]: 765/2589 cut-off events. [2022-11-16 12:46:46,974 INFO L131 PetriNetUnfolder]: For 147/200 co-relation queries the response was YES. [2022-11-16 12:46:46,991 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. [2022-11-16 12:46:47,009 INFO L137 encePairwiseOnDemand]: 576/585 looper letters, 59 selfloop transitions, 3 changer transitions 0/420 dead transitions. [2022-11-16 12:46:47,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 420 transitions, 1003 flow [2022-11-16 12:46:47,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:47,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:47,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1439 transitions. [2022-11-16 12:46:47,013 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.81994301994302 [2022-11-16 12:46:47,014 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1439 transitions. [2022-11-16 12:46:47,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1439 transitions. [2022-11-16 12:46:47,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:47,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1439 transitions. [2022-11-16 12:46:47,018 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) [2022-11-16 12:46:47,021 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) [2022-11-16 12:46:47,022 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) [2022-11-16 12:46:47,024 INFO L175 Difference]: Start difference. First operand has 403 places, 404 transitions, 835 flow. Second operand 3 states and 1439 transitions. [2022-11-16 12:46:47,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 420 transitions, 1003 flow [2022-11-16 12:46:47,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 420 transitions, 993 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:46:47,035 INFO L231 Difference]: Finished difference. Result has 396 places, 400 transitions, 833 flow [2022-11-16 12:46:47,035 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} [2022-11-16 12:46:47,036 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -85 predicate places. [2022-11-16 12:46:47,036 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 400 transitions, 833 flow [2022-11-16 12:46:47,037 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) [2022-11-16 12:46:47,039 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:47,039 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] [2022-11-16 12:46:47,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:46:47,040 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)] === [2022-11-16 12:46:47,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:47,040 INFO L85 PathProgramCache]: Analyzing trace with hash -2001077520, now seen corresponding path program 1 times [2022-11-16 12:46:47,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:47,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171746375] [2022-11-16 12:46:47,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:47,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:47,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:47,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:47,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171746375] [2022-11-16 12:46:47,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171746375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:47,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:47,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:47,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856066735] [2022-11-16 12:46:47,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:47,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:47,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:47,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:47,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:47,116 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-16 12:46:47,117 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) [2022-11-16 12:46:47,118 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:47,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-16 12:46:47,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:48,318 INFO L130 PetriNetUnfolder]: 1327/3953 cut-off events. [2022-11-16 12:46:48,319 INFO L131 PetriNetUnfolder]: For 533/613 co-relation queries the response was YES. [2022-11-16 12:46:48,340 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. [2022-11-16 12:46:48,363 INFO L137 encePairwiseOnDemand]: 581/585 looper letters, 51 selfloop transitions, 4 changer transitions 0/422 dead transitions. [2022-11-16 12:46:48,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 422 transitions, 1010 flow [2022-11-16 12:46:48,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:48,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:48,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1468 transitions. [2022-11-16 12:46:48,367 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8364672364672364 [2022-11-16 12:46:48,367 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1468 transitions. [2022-11-16 12:46:48,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1468 transitions. [2022-11-16 12:46:48,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:48,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1468 transitions. [2022-11-16 12:46:48,370 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) [2022-11-16 12:46:48,373 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) [2022-11-16 12:46:48,374 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) [2022-11-16 12:46:48,374 INFO L175 Difference]: Start difference. First operand has 396 places, 400 transitions, 833 flow. Second operand 3 states and 1468 transitions. [2022-11-16 12:46:48,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 422 transitions, 1010 flow [2022-11-16 12:46:48,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 422 transitions, 1000 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:48,384 INFO L231 Difference]: Finished difference. Result has 397 places, 402 transitions, 857 flow [2022-11-16 12:46:48,385 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} [2022-11-16 12:46:48,385 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -84 predicate places. [2022-11-16 12:46:48,386 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 402 transitions, 857 flow [2022-11-16 12:46:48,386 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) [2022-11-16 12:46:48,386 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:48,387 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] [2022-11-16 12:46:48,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:46:48,387 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)] === [2022-11-16 12:46:48,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:48,387 INFO L85 PathProgramCache]: Analyzing trace with hash -2125862161, now seen corresponding path program 1 times [2022-11-16 12:46:48,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:48,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929475867] [2022-11-16 12:46:48,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:48,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:48,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:48,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:48,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929475867] [2022-11-16 12:46:48,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929475867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:48,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:48,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:48,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032681931] [2022-11-16 12:46:48,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:48,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:48,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:48,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:48,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:48,453 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 475 out of 585 [2022-11-16 12:46:48,455 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) [2022-11-16 12:46:48,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:48,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 475 of 585 [2022-11-16 12:46:48,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:50,130 INFO L130 PetriNetUnfolder]: 2608/7096 cut-off events. [2022-11-16 12:46:50,130 INFO L131 PetriNetUnfolder]: For 1467/1661 co-relation queries the response was YES. [2022-11-16 12:46:50,162 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. [2022-11-16 12:46:50,221 INFO L137 encePairwiseOnDemand]: 581/585 looper letters, 60 selfloop transitions, 3 changer transitions 0/431 dead transitions. [2022-11-16 12:46:50,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 431 transitions, 1086 flow [2022-11-16 12:46:50,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:50,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:50,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1479 transitions. [2022-11-16 12:46:50,226 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8427350427350427 [2022-11-16 12:46:50,227 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1479 transitions. [2022-11-16 12:46:50,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1479 transitions. [2022-11-16 12:46:50,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:50,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1479 transitions. [2022-11-16 12:46:50,233 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) [2022-11-16 12:46:50,237 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) [2022-11-16 12:46:50,238 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) [2022-11-16 12:46:50,238 INFO L175 Difference]: Start difference. First operand has 397 places, 402 transitions, 857 flow. Second operand 3 states and 1479 transitions. [2022-11-16 12:46:50,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 431 transitions, 1086 flow [2022-11-16 12:46:50,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 431 transitions, 1072 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:50,251 INFO L231 Difference]: Finished difference. Result has 398 places, 403 transitions, 867 flow [2022-11-16 12:46:50,252 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} [2022-11-16 12:46:50,252 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -83 predicate places. [2022-11-16 12:46:50,253 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 403 transitions, 867 flow [2022-11-16 12:46:50,253 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) [2022-11-16 12:46:50,253 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:50,254 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] [2022-11-16 12:46:50,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:46:50,254 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)] === [2022-11-16 12:46:50,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:50,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1734107178, now seen corresponding path program 1 times [2022-11-16 12:46:50,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:50,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330784800] [2022-11-16 12:46:50,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:50,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:50,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:50,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:50,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330784800] [2022-11-16 12:46:50,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330784800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:50,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:50,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:50,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101767148] [2022-11-16 12:46:50,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:50,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:50,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:50,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:50,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:50,333 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 585 [2022-11-16 12:46:50,335 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) [2022-11-16 12:46:50,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:50,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 585 [2022-11-16 12:46:50,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:53,302 INFO L130 PetriNetUnfolder]: 5168/13698 cut-off events. [2022-11-16 12:46:53,302 INFO L131 PetriNetUnfolder]: For 2907/3295 co-relation queries the response was YES. [2022-11-16 12:46:53,386 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. [2022-11-16 12:46:53,485 INFO L137 encePairwiseOnDemand]: 581/585 looper letters, 65 selfloop transitions, 4 changer transitions 0/434 dead transitions. [2022-11-16 12:46:53,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 434 transitions, 1118 flow [2022-11-16 12:46:53,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:53,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:53,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1472 transitions. [2022-11-16 12:46:53,490 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8387464387464387 [2022-11-16 12:46:53,490 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1472 transitions. [2022-11-16 12:46:53,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1472 transitions. [2022-11-16 12:46:53,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:53,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1472 transitions. [2022-11-16 12:46:53,493 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) [2022-11-16 12:46:53,496 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) [2022-11-16 12:46:53,497 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) [2022-11-16 12:46:53,498 INFO L175 Difference]: Start difference. First operand has 398 places, 403 transitions, 867 flow. Second operand 3 states and 1472 transitions. [2022-11-16 12:46:53,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 434 transitions, 1118 flow [2022-11-16 12:46:53,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 434 transitions, 1108 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:53,509 INFO L231 Difference]: Finished difference. Result has 399 places, 405 transitions, 891 flow [2022-11-16 12:46:53,510 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} [2022-11-16 12:46:53,510 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -82 predicate places. [2022-11-16 12:46:53,510 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 405 transitions, 891 flow [2022-11-16 12:46:53,511 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) [2022-11-16 12:46:53,511 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:53,512 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] [2022-11-16 12:46:53,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:46:53,512 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)] === [2022-11-16 12:46:53,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:53,514 INFO L85 PathProgramCache]: Analyzing trace with hash -344228996, now seen corresponding path program 1 times [2022-11-16 12:46:53,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:53,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777884305] [2022-11-16 12:46:53,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:53,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:53,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:53,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:53,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777884305] [2022-11-16 12:46:53,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777884305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:53,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:53,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:53,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309979717] [2022-11-16 12:46:53,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:53,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:53,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:53,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:53,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:53,590 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 585 [2022-11-16 12:46:53,591 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) [2022-11-16 12:46:53,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:53,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 585 [2022-11-16 12:46:53,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:57,217 INFO L130 PetriNetUnfolder]: 6642/17051 cut-off events. [2022-11-16 12:46:57,217 INFO L131 PetriNetUnfolder]: For 4460/4831 co-relation queries the response was YES. [2022-11-16 12:46:57,291 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. [2022-11-16 12:46:57,373 INFO L137 encePairwiseOnDemand]: 579/585 looper letters, 65 selfloop transitions, 4 changer transitions 0/430 dead transitions. [2022-11-16 12:46:57,373 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 430 transitions, 1123 flow [2022-11-16 12:46:57,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:57,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:57,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1454 transitions. [2022-11-16 12:46:57,378 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8284900284900285 [2022-11-16 12:46:57,378 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1454 transitions. [2022-11-16 12:46:57,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1454 transitions. [2022-11-16 12:46:57,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:57,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1454 transitions. [2022-11-16 12:46:57,382 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) [2022-11-16 12:46:57,386 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) [2022-11-16 12:46:57,386 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) [2022-11-16 12:46:57,387 INFO L175 Difference]: Start difference. First operand has 399 places, 405 transitions, 891 flow. Second operand 3 states and 1454 transitions. [2022-11-16 12:46:57,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 430 transitions, 1123 flow [2022-11-16 12:46:57,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 430 transitions, 1109 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:57,398 INFO L231 Difference]: Finished difference. Result has 398 places, 406 transitions, 903 flow [2022-11-16 12:46:57,399 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} [2022-11-16 12:46:57,399 INFO L288 CegarLoopForPetriNet]: 481 programPoint places, -83 predicate places. [2022-11-16 12:46:57,399 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 406 transitions, 903 flow [2022-11-16 12:46:57,400 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) [2022-11-16 12:46:57,400 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:57,400 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:46:57,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:46:57,401 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)] === [2022-11-16 12:46:57,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:57,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1329265602, now seen corresponding path program 1 times [2022-11-16 12:46:57,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:57,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485321097] [2022-11-16 12:46:57,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:57,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:57,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:57,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:57,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485321097] [2022-11-16 12:46:57,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485321097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:57,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:57,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:57,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748464527] [2022-11-16 12:46:57,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:57,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:57,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:57,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:57,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:57,468 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 585 [2022-11-16 12:46:57,470 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) [2022-11-16 12:46:57,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:57,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 585 [2022-11-16 12:46:57,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand