./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-trans.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_7e3db7f8-a8ca-4e90-8e11-2128437654bf/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e3db7f8-a8ca-4e90-8e11-2128437654bf/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_7e3db7f8-a8ca-4e90-8e11-2128437654bf/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e3db7f8-a8ca-4e90-8e11-2128437654bf/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e3db7f8-a8ca-4e90-8e11-2128437654bf/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_7e3db7f8-a8ca-4e90-8e11-2128437654bf/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 b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 --- 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 11:14:01,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:14:01,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:14:01,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:14:01,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:14:01,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:14:01,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:14:01,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:14:01,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:14:01,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:14:01,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:14:01,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:14:01,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:14:01,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:14:01,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:14:01,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:14:01,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:14:01,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:14:01,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:14:01,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:14:01,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:14:01,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:14:01,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:14:01,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:14:01,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:14:01,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:14:01,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:14:01,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:14:01,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:14:01,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:14:01,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:14:01,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:14:01,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:14:01,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:14:01,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:14:01,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:14:01,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:14:01,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:14:01,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:14:01,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:14:01,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:14:01,091 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e3db7f8-a8ca-4e90-8e11-2128437654bf/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:14:01,125 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:14:01,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:14:01,126 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:14:01,126 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:14:01,127 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:14:01,127 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:14:01,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:14:01,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:14:01,128 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:14:01,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:14:01,129 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:14:01,129 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:14:01,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:14:01,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:14:01,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:14:01,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:14:01,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:14:01,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:14:01,131 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:14:01,131 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:14:01,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:14:01,132 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:14:01,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:14:01,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:14:01,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:14:01,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:14:01,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:14:01,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:14:01,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:14:01,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:14:01,134 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:14:01,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:14:01,134 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:14:01,134 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:14:01,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:14:01,135 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_7e3db7f8-a8ca-4e90-8e11-2128437654bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e3db7f8-a8ca-4e90-8e11-2128437654bf/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 [2022-11-16 11:14:01,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:14:01,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:14:01,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:14:01,400 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:14:01,401 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:14:01,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e3db7f8-a8ca-4e90-8e11-2128437654bf/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2022-11-16 11:14:01,465 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e3db7f8-a8ca-4e90-8e11-2128437654bf/bin/uautomizer-tPACEb0tL8/data/e4b4d235e/96f140f21d3a4bf1b44dbea6d4a757c7/FLAG33b660f15 [2022-11-16 11:14:01,890 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:14:01,890 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e3db7f8-a8ca-4e90-8e11-2128437654bf/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2022-11-16 11:14:01,897 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e3db7f8-a8ca-4e90-8e11-2128437654bf/bin/uautomizer-tPACEb0tL8/data/e4b4d235e/96f140f21d3a4bf1b44dbea6d4a757c7/FLAG33b660f15 [2022-11-16 11:14:02,273 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e3db7f8-a8ca-4e90-8e11-2128437654bf/bin/uautomizer-tPACEb0tL8/data/e4b4d235e/96f140f21d3a4bf1b44dbea6d4a757c7 [2022-11-16 11:14:02,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:14:02,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:14:02,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:14:02,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:14:02,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:14:02,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:14:02" (1/1) ... [2022-11-16 11:14:02,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ecee6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:02, skipping insertion in model container [2022-11-16 11:14:02,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:14:02" (1/1) ... [2022-11-16 11:14:02,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:14:02,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:14:02,557 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_7e3db7f8-a8ca-4e90-8e11-2128437654bf/sv-benchmarks/c/weaver/chl-node-trans.wvr.c[3945,3958] [2022-11-16 11:14:02,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:14:02,578 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:14:02,624 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_7e3db7f8-a8ca-4e90-8e11-2128437654bf/sv-benchmarks/c/weaver/chl-node-trans.wvr.c[3945,3958] [2022-11-16 11:14:02,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:14:02,647 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:14:02,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:02 WrapperNode [2022-11-16 11:14:02,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:14:02,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:14:02,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:14:02,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:14:02,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:02" (1/1) ... [2022-11-16 11:14:02,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:02" (1/1) ... [2022-11-16 11:14:02,737 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 795 [2022-11-16 11:14:02,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:14:02,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:14:02,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:14:02,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:14:02,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:02" (1/1) ... [2022-11-16 11:14:02,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:02" (1/1) ... [2022-11-16 11:14:02,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:02" (1/1) ... [2022-11-16 11:14:02,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:02" (1/1) ... [2022-11-16 11:14:02,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:02" (1/1) ... [2022-11-16 11:14:02,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:02" (1/1) ... [2022-11-16 11:14:02,814 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:02" (1/1) ... [2022-11-16 11:14:02,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:02" (1/1) ... [2022-11-16 11:14:02,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:14:02,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:14:02,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:14:02,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:14:02,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:02" (1/1) ... [2022-11-16 11:14:02,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:14:02,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e3db7f8-a8ca-4e90-8e11-2128437654bf/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:14:02,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e3db7f8-a8ca-4e90-8e11-2128437654bf/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:14:02,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e3db7f8-a8ca-4e90-8e11-2128437654bf/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:14:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:14:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:14:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:14:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:14:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:14:02,935 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:14:02,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:14:02,936 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:14:02,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:14:02,936 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:14:02,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:14:02,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:14:02,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:14:02,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:14:02,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:14:02,940 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 11:14:03,140 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:14:03,142 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:14:04,465 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:14:04,483 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:14:04,483 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 11:14:04,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:14:04 BoogieIcfgContainer [2022-11-16 11:14:04,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:14:04,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:14:04,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:14:04,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:14:04,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:14:02" (1/3) ... [2022-11-16 11:14:04,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c261b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:14:04, skipping insertion in model container [2022-11-16 11:14:04,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:14:02" (2/3) ... [2022-11-16 11:14:04,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c261b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:14:04, skipping insertion in model container [2022-11-16 11:14:04,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:14:04" (3/3) ... [2022-11-16 11:14:04,503 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2022-11-16 11:14:04,517 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:14:04,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:14:04,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 117 error locations. [2022-11-16 11:14:04,529 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:14:04,776 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 11:14:04,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1011 places, 1049 transitions, 2122 flow [2022-11-16 11:14:05,454 INFO L130 PetriNetUnfolder]: 48/1046 cut-off events. [2022-11-16 11:14:05,454 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:14:05,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 1046 events. 48/1046 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2200 event pairs, 0 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 830. Up to 2 conditions per place. [2022-11-16 11:14:05,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 1011 places, 1049 transitions, 2122 flow [2022-11-16 11:14:05,508 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 986 places, 1022 transitions, 2062 flow [2022-11-16 11:14:05,524 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:14:05,534 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;@67c295ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:14:05,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 195 error locations. [2022-11-16 11:14:05,540 INFO L130 PetriNetUnfolder]: 0/37 cut-off events. [2022-11-16 11:14:05,541 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:14:05,541 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:05,542 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] [2022-11-16 11:14:05,543 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:05,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash 945327491, now seen corresponding path program 1 times [2022-11-16 11:14:05,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:05,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201635437] [2022-11-16 11:14:05,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:05,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:05,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:05,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:05,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201635437] [2022-11-16 11:14:05,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201635437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:05,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:05,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:05,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919469582] [2022-11-16 11:14:05,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:05,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:05,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:05,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:05,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:05,928 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 977 out of 1049 [2022-11-16 11:14:05,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 986 places, 1022 transitions, 2062 flow. Second operand has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states 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 11:14:05,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:05,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 977 of 1049 [2022-11-16 11:14:05,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:07,855 INFO L130 PetriNetUnfolder]: 186/3267 cut-off events. [2022-11-16 11:14:07,856 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-11-16 11:14:07,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3610 conditions, 3267 events. 186/3267 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 21833 event pairs, 117 based on Foata normal form. 144/2788 useless extension candidates. Maximal degree in co-relation 2701. Up to 274 conditions per place. [2022-11-16 11:14:07,983 INFO L137 encePairwiseOnDemand]: 1018/1049 looper letters, 39 selfloop transitions, 2 changer transitions 16/993 dead transitions. [2022-11-16 11:14:07,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 987 places, 993 transitions, 2086 flow [2022-11-16 11:14:07,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:07,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:08,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3001 transitions. [2022-11-16 11:14:08,016 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9536066094693358 [2022-11-16 11:14:08,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3001 transitions. [2022-11-16 11:14:08,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3001 transitions. [2022-11-16 11:14:08,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:08,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3001 transitions. [2022-11-16 11:14:08,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1000.3333333333334) internal successors, (3001), 3 states have internal predecessors, (3001), 0 states have call successors, (0), 0 states 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 11:14:08,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:08,058 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:08,060 INFO L175 Difference]: Start difference. First operand has 986 places, 1022 transitions, 2062 flow. Second operand 3 states and 3001 transitions. [2022-11-16 11:14:08,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 987 places, 993 transitions, 2086 flow [2022-11-16 11:14:08,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 981 places, 993 transitions, 2074 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 11:14:08,098 INFO L231 Difference]: Finished difference. Result has 981 places, 977 transitions, 1964 flow [2022-11-16 11:14:08,102 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1992, PETRI_DIFFERENCE_MINUEND_PLACES=979, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=991, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1964, PETRI_PLACES=981, PETRI_TRANSITIONS=977} [2022-11-16 11:14:08,107 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -5 predicate places. [2022-11-16 11:14:08,107 INFO L495 AbstractCegarLoop]: Abstraction has has 981 places, 977 transitions, 1964 flow [2022-11-16 11:14:08,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states 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 11:14:08,110 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:08,110 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] [2022-11-16 11:14:08,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:14:08,111 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:08,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:08,112 INFO L85 PathProgramCache]: Analyzing trace with hash 428563668, now seen corresponding path program 1 times [2022-11-16 11:14:08,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:08,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703228476] [2022-11-16 11:14:08,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:08,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:08,216 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 11:14:08,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:08,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703228476] [2022-11-16 11:14:08,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703228476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:08,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:08,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:08,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952438962] [2022-11-16 11:14:08,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:08,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:08,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:08,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:08,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:08,227 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 980 out of 1049 [2022-11-16 11:14:08,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 981 places, 977 transitions, 1964 flow. Second operand has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states 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 11:14:08,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:08,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 980 of 1049 [2022-11-16 11:14:08,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:09,444 INFO L130 PetriNetUnfolder]: 117/2670 cut-off events. [2022-11-16 11:14:09,444 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-16 11:14:09,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2838 conditions, 2670 events. 117/2670 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 15759 event pairs, 60 based on Foata normal form. 0/2233 useless extension candidates. Maximal degree in co-relation 2791. Up to 146 conditions per place. [2022-11-16 11:14:09,503 INFO L137 encePairwiseOnDemand]: 1038/1049 looper letters, 27 selfloop transitions, 1 changer transitions 0/967 dead transitions. [2022-11-16 11:14:09,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 957 places, 967 transitions, 2000 flow [2022-11-16 11:14:09,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:09,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:09,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2978 transitions. [2022-11-16 11:14:09,512 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.946298061646012 [2022-11-16 11:14:09,513 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2978 transitions. [2022-11-16 11:14:09,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2978 transitions. [2022-11-16 11:14:09,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:09,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2978 transitions. [2022-11-16 11:14:09,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 992.6666666666666) internal successors, (2978), 3 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states 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 11:14:09,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:09,536 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:09,536 INFO L175 Difference]: Start difference. First operand has 981 places, 977 transitions, 1964 flow. Second operand 3 states and 2978 transitions. [2022-11-16 11:14:09,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 957 places, 967 transitions, 2000 flow [2022-11-16 11:14:09,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 955 places, 967 transitions, 1996 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:09,552 INFO L231 Difference]: Finished difference. Result has 955 places, 967 transitions, 1942 flow [2022-11-16 11:14:09,554 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1940, PETRI_DIFFERENCE_MINUEND_PLACES=953, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=967, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=966, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1942, PETRI_PLACES=955, PETRI_TRANSITIONS=967} [2022-11-16 11:14:09,555 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -31 predicate places. [2022-11-16 11:14:09,555 INFO L495 AbstractCegarLoop]: Abstraction has has 955 places, 967 transitions, 1942 flow [2022-11-16 11:14:09,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states 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 11:14:09,558 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:09,558 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:09,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:14:09,558 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:09,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:09,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1978544461, now seen corresponding path program 1 times [2022-11-16 11:14:09,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:09,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872185353] [2022-11-16 11:14:09,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:09,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:09,627 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 11:14:09,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:09,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872185353] [2022-11-16 11:14:09,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872185353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:09,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:09,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:09,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446292725] [2022-11-16 11:14:09,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:09,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:09,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:09,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:09,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:09,635 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 977 out of 1049 [2022-11-16 11:14:09,640 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 955 places, 967 transitions, 1942 flow. Second operand has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states 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 11:14:09,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:09,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 977 of 1049 [2022-11-16 11:14:09,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:11,966 INFO L130 PetriNetUnfolder]: 395/5097 cut-off events. [2022-11-16 11:14:11,967 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-16 11:14:12,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5747 conditions, 5097 events. 395/5097 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 42876 event pairs, 279 based on Foata normal form. 0/4170 useless extension candidates. Maximal degree in co-relation 5701. Up to 534 conditions per place. [2022-11-16 11:14:12,078 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 39 selfloop transitions, 2 changer transitions 0/966 dead transitions. [2022-11-16 11:14:12,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 956 places, 966 transitions, 2022 flow [2022-11-16 11:14:12,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:12,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:12,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2973 transitions. [2022-11-16 11:14:12,087 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9447092469018112 [2022-11-16 11:14:12,087 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2973 transitions. [2022-11-16 11:14:12,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2973 transitions. [2022-11-16 11:14:12,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:12,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2973 transitions. [2022-11-16 11:14:12,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 991.0) internal successors, (2973), 3 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states 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 11:14:12,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:12,106 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:12,107 INFO L175 Difference]: Start difference. First operand has 955 places, 967 transitions, 1942 flow. Second operand 3 states and 2973 transitions. [2022-11-16 11:14:12,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 956 places, 966 transitions, 2022 flow [2022-11-16 11:14:12,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 955 places, 966 transitions, 2021 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:14:12,125 INFO L231 Difference]: Finished difference. Result has 955 places, 966 transitions, 1943 flow [2022-11-16 11:14:12,127 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=953, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=964, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1943, PETRI_PLACES=955, PETRI_TRANSITIONS=966} [2022-11-16 11:14:12,130 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -31 predicate places. [2022-11-16 11:14:12,130 INFO L495 AbstractCegarLoop]: Abstraction has has 955 places, 966 transitions, 1943 flow [2022-11-16 11:14:12,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states 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 11:14:12,132 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:12,132 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] [2022-11-16 11:14:12,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:14:12,133 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:12,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:12,134 INFO L85 PathProgramCache]: Analyzing trace with hash 2119979741, now seen corresponding path program 1 times [2022-11-16 11:14:12,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:12,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206356817] [2022-11-16 11:14:12,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:12,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:12,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:12,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:12,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206356817] [2022-11-16 11:14:12,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206356817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:12,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:12,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:12,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374553581] [2022-11-16 11:14:12,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:12,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:12,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:12,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:12,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:12,214 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 980 out of 1049 [2022-11-16 11:14:12,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 955 places, 966 transitions, 1943 flow. Second operand has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states 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 11:14:12,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:12,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 980 of 1049 [2022-11-16 11:14:12,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:13,946 INFO L130 PetriNetUnfolder]: 225/3997 cut-off events. [2022-11-16 11:14:13,946 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-16 11:14:13,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4326 conditions, 3997 events. 225/3997 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 30568 event pairs, 132 based on Foata normal form. 0/3357 useless extension candidates. Maximal degree in co-relation 4281. Up to 264 conditions per place. [2022-11-16 11:14:14,025 INFO L137 encePairwiseOnDemand]: 1038/1049 looper letters, 27 selfloop transitions, 1 changer transitions 0/956 dead transitions. [2022-11-16 11:14:14,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 947 places, 956 transitions, 1979 flow [2022-11-16 11:14:14,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:14,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:14,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2978 transitions. [2022-11-16 11:14:14,032 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.946298061646012 [2022-11-16 11:14:14,032 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2978 transitions. [2022-11-16 11:14:14,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2978 transitions. [2022-11-16 11:14:14,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:14,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2978 transitions. [2022-11-16 11:14:14,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 992.6666666666666) internal successors, (2978), 3 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states 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 11:14:14,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:14,054 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:14,054 INFO L175 Difference]: Start difference. First operand has 955 places, 966 transitions, 1943 flow. Second operand 3 states and 2978 transitions. [2022-11-16 11:14:14,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 947 places, 956 transitions, 1979 flow [2022-11-16 11:14:14,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 945 places, 956 transitions, 1975 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:14,070 INFO L231 Difference]: Finished difference. Result has 945 places, 956 transitions, 1921 flow [2022-11-16 11:14:14,072 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1919, PETRI_DIFFERENCE_MINUEND_PLACES=943, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1921, PETRI_PLACES=945, PETRI_TRANSITIONS=956} [2022-11-16 11:14:14,073 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -41 predicate places. [2022-11-16 11:14:14,073 INFO L495 AbstractCegarLoop]: Abstraction has has 945 places, 956 transitions, 1921 flow [2022-11-16 11:14:14,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states 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 11:14:14,076 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:14,076 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 11:14:14,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:14:14,076 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:14,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:14,077 INFO L85 PathProgramCache]: Analyzing trace with hash -434408361, now seen corresponding path program 1 times [2022-11-16 11:14:14,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:14,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618664948] [2022-11-16 11:14:14,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:14,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:14,128 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 11:14:14,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:14,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618664948] [2022-11-16 11:14:14,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618664948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:14,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:14,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:14,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073008640] [2022-11-16 11:14:14,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:14,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:14,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:14,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:14,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:14,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 977 out of 1049 [2022-11-16 11:14:14,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 956 transitions, 1921 flow. Second operand has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states 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 11:14:14,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:14,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 977 of 1049 [2022-11-16 11:14:14,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:15,647 INFO L130 PetriNetUnfolder]: 400/4758 cut-off events. [2022-11-16 11:14:15,648 INFO L131 PetriNetUnfolder]: For 122/166 co-relation queries the response was YES. [2022-11-16 11:14:15,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5325 conditions, 4758 events. 400/4758 cut-off events. For 122/166 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 40103 event pairs, 279 based on Foata normal form. 0/3932 useless extension candidates. Maximal degree in co-relation 5279. Up to 549 conditions per place. [2022-11-16 11:14:15,739 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 39 selfloop transitions, 2 changer transitions 0/955 dead transitions. [2022-11-16 11:14:15,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 946 places, 955 transitions, 2001 flow [2022-11-16 11:14:15,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:15,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2973 transitions. [2022-11-16 11:14:15,746 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9447092469018112 [2022-11-16 11:14:15,746 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2973 transitions. [2022-11-16 11:14:15,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2973 transitions. [2022-11-16 11:14:15,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:15,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2973 transitions. [2022-11-16 11:14:15,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 991.0) internal successors, (2973), 3 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states 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 11:14:15,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:15,763 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:15,763 INFO L175 Difference]: Start difference. First operand has 945 places, 956 transitions, 1921 flow. Second operand 3 states and 2973 transitions. [2022-11-16 11:14:15,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 946 places, 955 transitions, 2001 flow [2022-11-16 11:14:15,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 945 places, 955 transitions, 2000 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:14:15,780 INFO L231 Difference]: Finished difference. Result has 945 places, 955 transitions, 1922 flow [2022-11-16 11:14:15,782 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1918, PETRI_DIFFERENCE_MINUEND_PLACES=943, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=953, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1922, PETRI_PLACES=945, PETRI_TRANSITIONS=955} [2022-11-16 11:14:15,782 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -41 predicate places. [2022-11-16 11:14:15,783 INFO L495 AbstractCegarLoop]: Abstraction has has 945 places, 955 transitions, 1922 flow [2022-11-16 11:14:15,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states 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 11:14:15,784 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:15,785 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] [2022-11-16 11:14:15,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:14:15,785 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:15,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:15,786 INFO L85 PathProgramCache]: Analyzing trace with hash -874842413, now seen corresponding path program 1 times [2022-11-16 11:14:15,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:15,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115997165] [2022-11-16 11:14:15,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:15,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:15,875 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 11:14:15,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:15,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115997165] [2022-11-16 11:14:15,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115997165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:15,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:15,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:15,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395776075] [2022-11-16 11:14:15,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:15,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:15,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:15,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:15,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:15,884 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 980 out of 1049 [2022-11-16 11:14:15,887 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 955 transitions, 1922 flow. Second operand has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states 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 11:14:15,887 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:15,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 980 of 1049 [2022-11-16 11:14:15,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:17,219 INFO L130 PetriNetUnfolder]: 227/3715 cut-off events. [2022-11-16 11:14:17,219 INFO L131 PetriNetUnfolder]: For 65/94 co-relation queries the response was YES. [2022-11-16 11:14:17,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4007 conditions, 3715 events. 227/3715 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 27120 event pairs, 132 based on Foata normal form. 0/3161 useless extension candidates. Maximal degree in co-relation 3962. Up to 274 conditions per place. [2022-11-16 11:14:17,266 INFO L137 encePairwiseOnDemand]: 1038/1049 looper letters, 27 selfloop transitions, 1 changer transitions 0/945 dead transitions. [2022-11-16 11:14:17,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 937 places, 945 transitions, 1958 flow [2022-11-16 11:14:17,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:17,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:17,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2978 transitions. [2022-11-16 11:14:17,273 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.946298061646012 [2022-11-16 11:14:17,273 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2978 transitions. [2022-11-16 11:14:17,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2978 transitions. [2022-11-16 11:14:17,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:17,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2978 transitions. [2022-11-16 11:14:17,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 992.6666666666666) internal successors, (2978), 3 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states 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 11:14:17,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:17,290 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:17,290 INFO L175 Difference]: Start difference. First operand has 945 places, 955 transitions, 1922 flow. Second operand 3 states and 2978 transitions. [2022-11-16 11:14:17,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 937 places, 945 transitions, 1958 flow [2022-11-16 11:14:17,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 935 places, 945 transitions, 1954 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:17,306 INFO L231 Difference]: Finished difference. Result has 935 places, 945 transitions, 1900 flow [2022-11-16 11:14:17,307 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1898, PETRI_DIFFERENCE_MINUEND_PLACES=933, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1900, PETRI_PLACES=935, PETRI_TRANSITIONS=945} [2022-11-16 11:14:17,308 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -51 predicate places. [2022-11-16 11:14:17,308 INFO L495 AbstractCegarLoop]: Abstraction has has 935 places, 945 transitions, 1900 flow [2022-11-16 11:14:17,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states 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 11:14:17,309 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:17,310 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] [2022-11-16 11:14:17,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:14:17,310 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:17,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:17,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1632069327, now seen corresponding path program 1 times [2022-11-16 11:14:17,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:17,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33160179] [2022-11-16 11:14:17,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:17,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:17,356 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 11:14:17,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:17,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33160179] [2022-11-16 11:14:17,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33160179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:17,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:17,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:17,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853911763] [2022-11-16 11:14:17,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:17,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:17,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:17,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:17,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:17,361 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1049 [2022-11-16 11:14:17,364 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 935 places, 945 transitions, 1900 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states 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 11:14:17,364 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:17,364 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1049 [2022-11-16 11:14:17,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:17,743 INFO L130 PetriNetUnfolder]: 30/1280 cut-off events. [2022-11-16 11:14:17,743 INFO L131 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-11-16 11:14:17,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1324 conditions, 1280 events. 30/1280 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3686 event pairs, 6 based on Foata normal form. 0/1119 useless extension candidates. Maximal degree in co-relation 1278. Up to 28 conditions per place. [2022-11-16 11:14:17,761 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 15 selfloop transitions, 2 changer transitions 0/944 dead transitions. [2022-11-16 11:14:17,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 936 places, 944 transitions, 1932 flow [2022-11-16 11:14:17,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:17,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:17,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3021 transitions. [2022-11-16 11:14:17,770 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9599618684461392 [2022-11-16 11:14:17,771 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3021 transitions. [2022-11-16 11:14:17,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3021 transitions. [2022-11-16 11:14:17,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:17,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3021 transitions. [2022-11-16 11:14:17,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1007.0) internal successors, (3021), 3 states have internal predecessors, (3021), 0 states have call successors, (0), 0 states 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 11:14:17,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:17,791 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:17,791 INFO L175 Difference]: Start difference. First operand has 935 places, 945 transitions, 1900 flow. Second operand 3 states and 3021 transitions. [2022-11-16 11:14:17,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 936 places, 944 transitions, 1932 flow [2022-11-16 11:14:17,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 935 places, 944 transitions, 1931 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:14:17,812 INFO L231 Difference]: Finished difference. Result has 935 places, 944 transitions, 1901 flow [2022-11-16 11:14:17,814 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1897, PETRI_DIFFERENCE_MINUEND_PLACES=933, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=942, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1901, PETRI_PLACES=935, PETRI_TRANSITIONS=944} [2022-11-16 11:14:17,814 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -51 predicate places. [2022-11-16 11:14:17,815 INFO L495 AbstractCegarLoop]: Abstraction has has 935 places, 944 transitions, 1901 flow [2022-11-16 11:14:17,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states 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 11:14:17,816 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:17,817 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] [2022-11-16 11:14:17,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:14:17,817 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:17,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:17,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1691410949, now seen corresponding path program 1 times [2022-11-16 11:14:17,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:17,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363516896] [2022-11-16 11:14:17,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:17,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:17,872 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 11:14:17,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:17,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363516896] [2022-11-16 11:14:17,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363516896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:17,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:17,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:17,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245671044] [2022-11-16 11:14:17,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:17,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:17,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:17,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:17,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:17,879 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-16 11:14:17,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 935 places, 944 transitions, 1901 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states 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 11:14:17,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:17,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-16 11:14:17,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:18,330 INFO L130 PetriNetUnfolder]: 48/1523 cut-off events. [2022-11-16 11:14:18,331 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:14:18,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1608 conditions, 1523 events. 48/1523 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6662 event pairs, 18 based on Foata normal form. 0/1321 useless extension candidates. Maximal degree in co-relation 1562. Up to 55 conditions per place. [2022-11-16 11:14:18,355 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/943 dead transitions. [2022-11-16 11:14:18,355 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 936 places, 943 transitions, 1939 flow [2022-11-16 11:14:18,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:18,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:18,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-16 11:14:18,361 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-16 11:14:18,361 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-16 11:14:18,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-16 11:14:18,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:18,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-16 11:14:18,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states 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 11:14:18,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:18,375 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:18,376 INFO L175 Difference]: Start difference. First operand has 935 places, 944 transitions, 1901 flow. Second operand 3 states and 3015 transitions. [2022-11-16 11:14:18,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 936 places, 943 transitions, 1939 flow [2022-11-16 11:14:18,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 934 places, 943 transitions, 1935 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:18,391 INFO L231 Difference]: Finished difference. Result has 934 places, 943 transitions, 1899 flow [2022-11-16 11:14:18,393 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1895, PETRI_DIFFERENCE_MINUEND_PLACES=932, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=943, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=941, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1899, PETRI_PLACES=934, PETRI_TRANSITIONS=943} [2022-11-16 11:14:18,393 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -52 predicate places. [2022-11-16 11:14:18,393 INFO L495 AbstractCegarLoop]: Abstraction has has 934 places, 943 transitions, 1899 flow [2022-11-16 11:14:18,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states 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 11:14:18,395 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:18,395 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] [2022-11-16 11:14:18,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:14:18,395 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:18,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:18,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1567237602, now seen corresponding path program 1 times [2022-11-16 11:14:18,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:18,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458394869] [2022-11-16 11:14:18,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:18,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:18,447 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 11:14:18,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:18,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458394869] [2022-11-16 11:14:18,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458394869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:18,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:18,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:18,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334886050] [2022-11-16 11:14:18,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:18,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:18,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:18,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:18,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:18,452 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-16 11:14:18,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 934 places, 943 transitions, 1899 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states 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 11:14:18,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:18,456 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-16 11:14:18,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:18,883 INFO L130 PetriNetUnfolder]: 48/1484 cut-off events. [2022-11-16 11:14:18,883 INFO L131 PetriNetUnfolder]: For 3/21 co-relation queries the response was YES. [2022-11-16 11:14:18,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 1484 events. 48/1484 cut-off events. For 3/21 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6132 event pairs, 18 based on Foata normal form. 0/1289 useless extension candidates. Maximal degree in co-relation 1523. Up to 55 conditions per place. [2022-11-16 11:14:18,918 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/942 dead transitions. [2022-11-16 11:14:18,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 935 places, 942 transitions, 1937 flow [2022-11-16 11:14:18,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:18,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:18,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-16 11:14:18,926 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-16 11:14:18,926 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-16 11:14:18,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-16 11:14:18,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:18,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-16 11:14:18,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states 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 11:14:18,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:18,942 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:18,943 INFO L175 Difference]: Start difference. First operand has 934 places, 943 transitions, 1899 flow. Second operand 3 states and 3015 transitions. [2022-11-16 11:14:18,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 935 places, 942 transitions, 1937 flow [2022-11-16 11:14:18,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 933 places, 942 transitions, 1933 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:18,963 INFO L231 Difference]: Finished difference. Result has 933 places, 942 transitions, 1897 flow [2022-11-16 11:14:18,964 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1893, PETRI_DIFFERENCE_MINUEND_PLACES=931, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=940, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1897, PETRI_PLACES=933, PETRI_TRANSITIONS=942} [2022-11-16 11:14:18,965 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -53 predicate places. [2022-11-16 11:14:18,965 INFO L495 AbstractCegarLoop]: Abstraction has has 933 places, 942 transitions, 1897 flow [2022-11-16 11:14:18,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states 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 11:14:18,967 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:18,967 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] [2022-11-16 11:14:18,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:14:18,967 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:18,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:18,968 INFO L85 PathProgramCache]: Analyzing trace with hash 498944224, now seen corresponding path program 1 times [2022-11-16 11:14:18,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:18,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529669160] [2022-11-16 11:14:18,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:18,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:19,054 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 11:14:19,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:19,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529669160] [2022-11-16 11:14:19,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529669160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:19,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:19,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:19,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214944360] [2022-11-16 11:14:19,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:19,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:19,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:19,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:19,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:19,065 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1049 [2022-11-16 11:14:19,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 933 places, 942 transitions, 1897 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states 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 11:14:19,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:19,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1049 [2022-11-16 11:14:19,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:19,446 INFO L130 PetriNetUnfolder]: 27/1136 cut-off events. [2022-11-16 11:14:19,446 INFO L131 PetriNetUnfolder]: For 6/12 co-relation queries the response was YES. [2022-11-16 11:14:19,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1179 conditions, 1136 events. 27/1136 cut-off events. For 6/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3099 event pairs, 6 based on Foata normal form. 0/1002 useless extension candidates. Maximal degree in co-relation 1133. Up to 28 conditions per place. [2022-11-16 11:14:19,465 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 15 selfloop transitions, 2 changer transitions 0/941 dead transitions. [2022-11-16 11:14:19,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 934 places, 941 transitions, 1929 flow [2022-11-16 11:14:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:19,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:19,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3021 transitions. [2022-11-16 11:14:19,472 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9599618684461392 [2022-11-16 11:14:19,472 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3021 transitions. [2022-11-16 11:14:19,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3021 transitions. [2022-11-16 11:14:19,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:19,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3021 transitions. [2022-11-16 11:14:19,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1007.0) internal successors, (3021), 3 states have internal predecessors, (3021), 0 states have call successors, (0), 0 states 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 11:14:19,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:19,486 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:19,486 INFO L175 Difference]: Start difference. First operand has 933 places, 942 transitions, 1897 flow. Second operand 3 states and 3021 transitions. [2022-11-16 11:14:19,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 934 places, 941 transitions, 1929 flow [2022-11-16 11:14:19,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 932 places, 941 transitions, 1925 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:19,501 INFO L231 Difference]: Finished difference. Result has 932 places, 941 transitions, 1895 flow [2022-11-16 11:14:19,503 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1891, PETRI_DIFFERENCE_MINUEND_PLACES=930, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1895, PETRI_PLACES=932, PETRI_TRANSITIONS=941} [2022-11-16 11:14:19,503 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -54 predicate places. [2022-11-16 11:14:19,503 INFO L495 AbstractCegarLoop]: Abstraction has has 932 places, 941 transitions, 1895 flow [2022-11-16 11:14:19,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states 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 11:14:19,505 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:19,505 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:19,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:14:19,505 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:19,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:19,506 INFO L85 PathProgramCache]: Analyzing trace with hash -583187756, now seen corresponding path program 1 times [2022-11-16 11:14:19,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:19,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282926446] [2022-11-16 11:14:19,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:19,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:19,554 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 11:14:19,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:19,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282926446] [2022-11-16 11:14:19,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282926446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:19,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:19,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:19,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283466789] [2022-11-16 11:14:19,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:19,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:19,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:19,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:19,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:19,560 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-16 11:14:19,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 932 places, 941 transitions, 1895 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states 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 11:14:19,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:19,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-16 11:14:19,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:20,014 INFO L130 PetriNetUnfolder]: 45/1379 cut-off events. [2022-11-16 11:14:20,017 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-16 11:14:20,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1455 conditions, 1379 events. 45/1379 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5296 event pairs, 18 based on Foata normal form. 0/1197 useless extension candidates. Maximal degree in co-relation 1409. Up to 55 conditions per place. [2022-11-16 11:14:20,053 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/940 dead transitions. [2022-11-16 11:14:20,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 933 places, 940 transitions, 1933 flow [2022-11-16 11:14:20,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:20,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:20,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-16 11:14:20,058 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-16 11:14:20,058 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-16 11:14:20,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-16 11:14:20,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:20,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-16 11:14:20,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states 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 11:14:20,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:20,076 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:20,076 INFO L175 Difference]: Start difference. First operand has 932 places, 941 transitions, 1895 flow. Second operand 3 states and 3015 transitions. [2022-11-16 11:14:20,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 933 places, 940 transitions, 1933 flow [2022-11-16 11:14:20,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 931 places, 940 transitions, 1929 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:20,093 INFO L231 Difference]: Finished difference. Result has 931 places, 940 transitions, 1893 flow [2022-11-16 11:14:20,094 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=929, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=940, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=938, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1893, PETRI_PLACES=931, PETRI_TRANSITIONS=940} [2022-11-16 11:14:20,095 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -55 predicate places. [2022-11-16 11:14:20,096 INFO L495 AbstractCegarLoop]: Abstraction has has 931 places, 940 transitions, 1893 flow [2022-11-16 11:14:20,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states 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 11:14:20,097 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:20,097 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] [2022-11-16 11:14:20,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:14:20,098 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:20,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:20,098 INFO L85 PathProgramCache]: Analyzing trace with hash -229729452, now seen corresponding path program 1 times [2022-11-16 11:14:20,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:20,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719003113] [2022-11-16 11:14:20,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:20,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:20,157 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 11:14:20,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:20,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719003113] [2022-11-16 11:14:20,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719003113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:20,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:20,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:20,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442363348] [2022-11-16 11:14:20,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:20,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:20,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:20,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:20,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:20,162 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-16 11:14:20,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 931 places, 940 transitions, 1893 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states 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 11:14:20,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:20,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-16 11:14:20,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:20,634 INFO L130 PetriNetUnfolder]: 45/1340 cut-off events. [2022-11-16 11:14:20,635 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-16 11:14:20,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1416 conditions, 1340 events. 45/1340 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5106 event pairs, 18 based on Foata normal form. 0/1165 useless extension candidates. Maximal degree in co-relation 1370. Up to 55 conditions per place. [2022-11-16 11:14:20,652 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/939 dead transitions. [2022-11-16 11:14:20,653 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 932 places, 939 transitions, 1931 flow [2022-11-16 11:14:20,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:20,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:20,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-16 11:14:20,657 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-16 11:14:20,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-16 11:14:20,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-16 11:14:20,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:20,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-16 11:14:20,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states 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 11:14:20,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:20,674 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:20,674 INFO L175 Difference]: Start difference. First operand has 931 places, 940 transitions, 1893 flow. Second operand 3 states and 3015 transitions. [2022-11-16 11:14:20,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 932 places, 939 transitions, 1931 flow [2022-11-16 11:14:20,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 930 places, 939 transitions, 1927 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:20,694 INFO L231 Difference]: Finished difference. Result has 930 places, 939 transitions, 1891 flow [2022-11-16 11:14:20,695 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1887, PETRI_DIFFERENCE_MINUEND_PLACES=928, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=939, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=937, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1891, PETRI_PLACES=930, PETRI_TRANSITIONS=939} [2022-11-16 11:14:20,696 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -56 predicate places. [2022-11-16 11:14:20,696 INFO L495 AbstractCegarLoop]: Abstraction has has 930 places, 939 transitions, 1891 flow [2022-11-16 11:14:20,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states 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 11:14:20,698 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:20,698 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] [2022-11-16 11:14:20,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:14:20,699 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:20,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:20,699 INFO L85 PathProgramCache]: Analyzing trace with hash 350400567, now seen corresponding path program 1 times [2022-11-16 11:14:20,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:20,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019665912] [2022-11-16 11:14:20,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:20,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:20,753 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 11:14:20,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:20,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019665912] [2022-11-16 11:14:20,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019665912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:20,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:20,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:20,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318102462] [2022-11-16 11:14:20,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:20,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:20,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:20,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:20,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:20,760 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1049 [2022-11-16 11:14:20,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 930 places, 939 transitions, 1891 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states 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 11:14:20,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:20,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1049 [2022-11-16 11:14:20,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:21,111 INFO L130 PetriNetUnfolder]: 24/972 cut-off events. [2022-11-16 11:14:21,111 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-11-16 11:14:21,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1011 conditions, 972 events. 24/972 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2303 event pairs, 6 based on Foata normal form. 0/869 useless extension candidates. Maximal degree in co-relation 965. Up to 27 conditions per place. [2022-11-16 11:14:21,131 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 14 selfloop transitions, 2 changer transitions 0/938 dead transitions. [2022-11-16 11:14:21,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 931 places, 938 transitions, 1921 flow [2022-11-16 11:14:21,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:21,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:21,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3020 transitions. [2022-11-16 11:14:21,138 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9596441054972991 [2022-11-16 11:14:21,138 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3020 transitions. [2022-11-16 11:14:21,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3020 transitions. [2022-11-16 11:14:21,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:21,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3020 transitions. [2022-11-16 11:14:21,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1006.6666666666666) internal successors, (3020), 3 states have internal predecessors, (3020), 0 states have call successors, (0), 0 states 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 11:14:21,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:21,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:21,151 INFO L175 Difference]: Start difference. First operand has 930 places, 939 transitions, 1891 flow. Second operand 3 states and 3020 transitions. [2022-11-16 11:14:21,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 931 places, 938 transitions, 1921 flow [2022-11-16 11:14:21,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 929 places, 938 transitions, 1917 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:21,175 INFO L231 Difference]: Finished difference. Result has 929 places, 938 transitions, 1889 flow [2022-11-16 11:14:21,177 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1885, PETRI_DIFFERENCE_MINUEND_PLACES=927, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=936, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1889, PETRI_PLACES=929, PETRI_TRANSITIONS=938} [2022-11-16 11:14:21,178 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -57 predicate places. [2022-11-16 11:14:21,178 INFO L495 AbstractCegarLoop]: Abstraction has has 929 places, 938 transitions, 1889 flow [2022-11-16 11:14:21,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states 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 11:14:21,180 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:21,180 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] [2022-11-16 11:14:21,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:14:21,180 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:21,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:21,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1496139227, now seen corresponding path program 1 times [2022-11-16 11:14:21,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:21,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365316843] [2022-11-16 11:14:21,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:21,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:21,249 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 11:14:21,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:21,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365316843] [2022-11-16 11:14:21,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365316843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:21,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:21,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:21,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468130063] [2022-11-16 11:14:21,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:21,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:21,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:21,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:21,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:21,256 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-16 11:14:21,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 929 places, 938 transitions, 1889 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states 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 11:14:21,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:21,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-16 11:14:21,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:21,726 INFO L130 PetriNetUnfolder]: 42/1215 cut-off events. [2022-11-16 11:14:21,726 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-16 11:14:21,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1282 conditions, 1215 events. 42/1215 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3863 event pairs, 18 based on Foata normal form. 0/1063 useless extension candidates. Maximal degree in co-relation 1236. Up to 55 conditions per place. [2022-11-16 11:14:21,753 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/937 dead transitions. [2022-11-16 11:14:21,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 930 places, 937 transitions, 1927 flow [2022-11-16 11:14:21,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:21,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:21,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-16 11:14:21,760 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-16 11:14:21,761 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-16 11:14:21,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-16 11:14:21,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:21,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-16 11:14:21,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states 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 11:14:21,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:21,774 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:21,774 INFO L175 Difference]: Start difference. First operand has 929 places, 938 transitions, 1889 flow. Second operand 3 states and 3015 transitions. [2022-11-16 11:14:21,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 930 places, 937 transitions, 1927 flow [2022-11-16 11:14:21,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 928 places, 937 transitions, 1923 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:21,795 INFO L231 Difference]: Finished difference. Result has 928 places, 937 transitions, 1887 flow [2022-11-16 11:14:21,796 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1883, PETRI_DIFFERENCE_MINUEND_PLACES=926, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=935, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1887, PETRI_PLACES=928, PETRI_TRANSITIONS=937} [2022-11-16 11:14:21,797 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -58 predicate places. [2022-11-16 11:14:21,797 INFO L495 AbstractCegarLoop]: Abstraction has has 928 places, 937 transitions, 1887 flow [2022-11-16 11:14:21,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states 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 11:14:21,798 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:21,799 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] [2022-11-16 11:14:21,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:14:21,799 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:21,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:21,800 INFO L85 PathProgramCache]: Analyzing trace with hash 743604380, now seen corresponding path program 1 times [2022-11-16 11:14:21,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:21,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288555713] [2022-11-16 11:14:21,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:21,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:21,857 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 11:14:21,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:21,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288555713] [2022-11-16 11:14:21,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288555713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:21,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:21,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:21,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101770129] [2022-11-16 11:14:21,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:21,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:21,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:21,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:21,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:21,864 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-16 11:14:21,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 928 places, 937 transitions, 1887 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states 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 11:14:21,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:21,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-16 11:14:21,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:22,307 INFO L130 PetriNetUnfolder]: 42/1176 cut-off events. [2022-11-16 11:14:22,307 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-16 11:14:22,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1243 conditions, 1176 events. 42/1176 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3657 event pairs, 18 based on Foata normal form. 0/1031 useless extension candidates. Maximal degree in co-relation 1197. Up to 55 conditions per place. [2022-11-16 11:14:22,328 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/936 dead transitions. [2022-11-16 11:14:22,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 929 places, 936 transitions, 1925 flow [2022-11-16 11:14:22,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:22,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:22,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-16 11:14:22,338 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-16 11:14:22,338 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-16 11:14:22,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-16 11:14:22,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:22,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-16 11:14:22,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states 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 11:14:22,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:22,347 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:22,348 INFO L175 Difference]: Start difference. First operand has 928 places, 937 transitions, 1887 flow. Second operand 3 states and 3015 transitions. [2022-11-16 11:14:22,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 929 places, 936 transitions, 1925 flow [2022-11-16 11:14:22,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 927 places, 936 transitions, 1921 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:22,368 INFO L231 Difference]: Finished difference. Result has 927 places, 936 transitions, 1885 flow [2022-11-16 11:14:22,369 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=925, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=936, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=934, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1885, PETRI_PLACES=927, PETRI_TRANSITIONS=936} [2022-11-16 11:14:22,370 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -59 predicate places. [2022-11-16 11:14:22,370 INFO L495 AbstractCegarLoop]: Abstraction has has 927 places, 936 transitions, 1885 flow [2022-11-16 11:14:22,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states 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 11:14:22,371 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:22,371 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:22,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:14:22,372 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:22,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:22,373 INFO L85 PathProgramCache]: Analyzing trace with hash 295586313, now seen corresponding path program 1 times [2022-11-16 11:14:22,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:22,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643504570] [2022-11-16 11:14:22,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:22,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:22,482 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 11:14:22,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:22,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643504570] [2022-11-16 11:14:22,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643504570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:22,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:22,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:14:22,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918742909] [2022-11-16 11:14:22,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:22,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:14:22,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:22,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:14:22,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:14:22,488 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 995 out of 1049 [2022-11-16 11:14:22,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 927 places, 936 transitions, 1885 flow. Second operand has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states 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 11:14:22,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:22,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 995 of 1049 [2022-11-16 11:14:22,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:23,362 INFO L130 PetriNetUnfolder]: 108/2537 cut-off events. [2022-11-16 11:14:23,362 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-16 11:14:23,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2709 conditions, 2537 events. 108/2537 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 14356 event pairs, 60 based on Foata normal form. 0/2174 useless extension candidates. Maximal degree in co-relation 2663. Up to 148 conditions per place. [2022-11-16 11:14:23,415 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 21 selfloop transitions, 2 changer transitions 0/935 dead transitions. [2022-11-16 11:14:23,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 928 places, 935 transitions, 1929 flow [2022-11-16 11:14:23,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:14:23,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:14:23,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3009 transitions. [2022-11-16 11:14:23,423 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9561487130600572 [2022-11-16 11:14:23,423 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3009 transitions. [2022-11-16 11:14:23,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3009 transitions. [2022-11-16 11:14:23,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:23,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3009 transitions. [2022-11-16 11:14:23,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1003.0) internal successors, (3009), 3 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states 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 11:14:23,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:23,430 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states 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 11:14:23,430 INFO L175 Difference]: Start difference. First operand has 927 places, 936 transitions, 1885 flow. Second operand 3 states and 3009 transitions. [2022-11-16 11:14:23,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 928 places, 935 transitions, 1929 flow [2022-11-16 11:14:23,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 926 places, 935 transitions, 1925 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:23,446 INFO L231 Difference]: Finished difference. Result has 926 places, 935 transitions, 1883 flow [2022-11-16 11:14:23,447 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1879, PETRI_DIFFERENCE_MINUEND_PLACES=924, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=935, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=933, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1883, PETRI_PLACES=926, PETRI_TRANSITIONS=935} [2022-11-16 11:14:23,448 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -60 predicate places. [2022-11-16 11:14:23,448 INFO L495 AbstractCegarLoop]: Abstraction has has 926 places, 935 transitions, 1883 flow [2022-11-16 11:14:23,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states 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 11:14:23,449 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:23,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:23,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:14:23,450 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-16 11:14:23,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:23,451 INFO L85 PathProgramCache]: Analyzing trace with hash -960506503, now seen corresponding path program 1 times [2022-11-16 11:14:23,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:23,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730634482] [2022-11-16 11:14:23,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:23,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:24,226 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 11:14:24,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:24,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730634482] [2022-11-16 11:14:24,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730634482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:24,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:24,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:14:24,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193300988] [2022-11-16 11:14:24,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:24,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:14:24,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:24,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:14:24,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:14:24,235 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 845 out of 1049 [2022-11-16 11:14:24,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 926 places, 935 transitions, 1883 flow. Second operand has 6 states, 6 states have (on average 846.8333333333334) internal successors, (5081), 6 states have internal predecessors, (5081), 0 states have call successors, (0), 0 states 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 11:14:24,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:24,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 845 of 1049 [2022-11-16 11:14:24,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand