./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-symm.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_d9c18aa2-c774-46bc-bd46-6e9e831c8228/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c18aa2-c774-46bc-bd46-6e9e831c8228/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_d9c18aa2-c774-46bc-bd46-6e9e831c8228/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c18aa2-c774-46bc-bd46-6e9e831c8228/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c18aa2-c774-46bc-bd46-6e9e831c8228/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_d9c18aa2-c774-46bc-bd46-6e9e831c8228/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 b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da --- 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 10:53:52,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:53:52,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:53:52,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:53:52,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:53:52,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:53:52,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:53:52,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:53:52,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:53:52,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:53:52,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:53:52,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:53:52,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:53:52,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:53:52,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:53:52,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:53:52,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:53:52,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:53:52,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:53:52,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:53:52,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:53:52,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:53:52,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:53:52,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:53:52,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:53:52,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:53:52,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:53:52,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:53:52,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:53:52,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:53:52,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:53:52,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:53:52,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:53:52,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:53:52,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:53:52,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:53:52,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:53:52,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:53:52,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:53:52,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:53:52,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:53:52,313 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c18aa2-c774-46bc-bd46-6e9e831c8228/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 10:53:52,355 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:53:52,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:53:52,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:53:52,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:53:52,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:53:52,357 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:53:52,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:53:52,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:53:52,358 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:53:52,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:53:52,359 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 10:53:52,359 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 10:53:52,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:53:52,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 10:53:52,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:53:52,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:53:52,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:53:52,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:53:52,361 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 10:53:52,361 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 10:53:52,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:53:52,361 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:53:52,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:53:52,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:53:52,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:53:52,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:53:52,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:53:52,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:53:52,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:53:52,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:53:52,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:53:52,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:53:52,369 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:53:52,369 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:53:52,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:53:52,369 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_d9c18aa2-c774-46bc-bd46-6e9e831c8228/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c18aa2-c774-46bc-bd46-6e9e831c8228/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da [2022-11-16 10:53:52,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:53:52,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:53:52,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:53:52,682 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:53:52,683 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:53:52,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c18aa2-c774-46bc-bd46-6e9e831c8228/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2022-11-16 10:53:52,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c18aa2-c774-46bc-bd46-6e9e831c8228/bin/uautomizer-tPACEb0tL8/data/50d08c453/25e03b0eceb84b66a72076df58ed9859/FLAG9f0edd390 [2022-11-16 10:53:53,235 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:53:53,236 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c18aa2-c774-46bc-bd46-6e9e831c8228/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2022-11-16 10:53:53,245 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c18aa2-c774-46bc-bd46-6e9e831c8228/bin/uautomizer-tPACEb0tL8/data/50d08c453/25e03b0eceb84b66a72076df58ed9859/FLAG9f0edd390 [2022-11-16 10:53:53,721 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c18aa2-c774-46bc-bd46-6e9e831c8228/bin/uautomizer-tPACEb0tL8/data/50d08c453/25e03b0eceb84b66a72076df58ed9859 [2022-11-16 10:53:53,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:53:53,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:53:53,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:53:53,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:53:53,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:53:53,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:53:53" (1/1) ... [2022-11-16 10:53:53,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@475f1d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:53, skipping insertion in model container [2022-11-16 10:53:53,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:53:53" (1/1) ... [2022-11-16 10:53:53,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:53:53,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:53:53,973 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_d9c18aa2-c774-46bc-bd46-6e9e831c8228/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2022-11-16 10:53:53,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:53:53,988 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:53:54,020 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_d9c18aa2-c774-46bc-bd46-6e9e831c8228/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2022-11-16 10:53:54,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:53:54,039 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:53:54,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:54 WrapperNode [2022-11-16 10:53:54,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:53:54,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:53:54,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:53:54,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:53:54,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:54" (1/1) ... [2022-11-16 10:53:54,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:54" (1/1) ... [2022-11-16 10:53:54,114 INFO L138 Inliner]: procedures = 25, calls = 39, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 364 [2022-11-16 10:53:54,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:53:54,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:53:54,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:53:54,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:53:54,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:54" (1/1) ... [2022-11-16 10:53:54,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:54" (1/1) ... [2022-11-16 10:53:54,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:54" (1/1) ... [2022-11-16 10:53:54,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:54" (1/1) ... [2022-11-16 10:53:54,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:54" (1/1) ... [2022-11-16 10:53:54,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:54" (1/1) ... [2022-11-16 10:53:54,161 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:54" (1/1) ... [2022-11-16 10:53:54,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:54" (1/1) ... [2022-11-16 10:53:54,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:53:54,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:53:54,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:53:54,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:53:54,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:54" (1/1) ... [2022-11-16 10:53:54,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:53:54,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c18aa2-c774-46bc-bd46-6e9e831c8228/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:53:54,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c18aa2-c774-46bc-bd46-6e9e831c8228/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:53:54,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c18aa2-c774-46bc-bd46-6e9e831c8228/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:53:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:53:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:53:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 10:53:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 10:53:54,295 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 10:53:54,296 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 10:53:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 10:53:54,297 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 10:53:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:53:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 10:53:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:53:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:53:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:53:54,299 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 10:53:54,448 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:53:54,450 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:53:55,327 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:53:55,344 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:53:55,348 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 10:53:55,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:53:55 BoogieIcfgContainer [2022-11-16 10:53:55,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:53:55,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:53:55,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:53:55,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:53:55,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:53:53" (1/3) ... [2022-11-16 10:53:55,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f831552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:53:55, skipping insertion in model container [2022-11-16 10:53:55,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:53:54" (2/3) ... [2022-11-16 10:53:55,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f831552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:53:55, skipping insertion in model container [2022-11-16 10:53:55,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:53:55" (3/3) ... [2022-11-16 10:53:55,377 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-symm.wvr.c [2022-11-16 10:53:55,391 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 10:53:55,401 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:53:55,401 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-11-16 10:53:55,401 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 10:53:55,578 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 10:53:55,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 453 places, 472 transitions, 960 flow [2022-11-16 10:53:55,812 INFO L130 PetriNetUnfolder]: 26/470 cut-off events. [2022-11-16 10:53:55,812 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 10:53:55,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 470 events. 26/470 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 933 event pairs, 0 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 271. Up to 3 conditions per place. [2022-11-16 10:53:55,830 INFO L82 GeneralOperation]: Start removeDead. Operand has 453 places, 472 transitions, 960 flow [2022-11-16 10:53:55,859 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 432 places, 449 transitions, 910 flow [2022-11-16 10:53:55,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:53:55,891 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;@561a8ad9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:53:55,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2022-11-16 10:53:55,927 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-16 10:53:55,930 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 10:53:55,930 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:53:55,931 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] [2022-11-16 10:53:55,931 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:53:55,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:53:55,935 INFO L85 PathProgramCache]: Analyzing trace with hash -264134063, now seen corresponding path program 1 times [2022-11-16 10:53:55,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:53:55,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645011706] [2022-11-16 10:53:55,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:53:55,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:53:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:53:56,178 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 10:53:56,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:53:56,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645011706] [2022-11-16 10:53:56,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645011706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:53:56,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:53:56,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:53:56,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830566825] [2022-11-16 10:53:56,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:53:56,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:53:56,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:53:56,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:53:56,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:53:56,234 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 472 [2022-11-16 10:53:56,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 449 transitions, 910 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states 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 10:53:56,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:53:56,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 472 [2022-11-16 10:53:56,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:53:56,715 INFO L130 PetriNetUnfolder]: 96/1752 cut-off events. [2022-11-16 10:53:56,716 INFO L131 PetriNetUnfolder]: For 34/36 co-relation queries the response was YES. [2022-11-16 10:53:56,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1908 conditions, 1752 events. 96/1752 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11513 event pairs, 48 based on Foata normal form. 36/1492 useless extension candidates. Maximal degree in co-relation 1554. Up to 127 conditions per place. [2022-11-16 10:53:56,729 INFO L137 encePairwiseOnDemand]: 455/472 looper letters, 22 selfloop transitions, 2 changer transitions 6/434 dead transitions. [2022-11-16 10:53:56,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 434 transitions, 928 flow [2022-11-16 10:53:56,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:53:56,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:53:56,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1332 transitions. [2022-11-16 10:53:56,757 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.940677966101695 [2022-11-16 10:53:56,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1332 transitions. [2022-11-16 10:53:56,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1332 transitions. [2022-11-16 10:53:56,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:53:56,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1332 transitions. [2022-11-16 10:53:56,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 444.0) internal successors, (1332), 3 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states 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 10:53:56,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:53:56,787 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:53:56,789 INFO L175 Difference]: Start difference. First operand has 432 places, 449 transitions, 910 flow. Second operand 3 states and 1332 transitions. [2022-11-16 10:53:56,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 434 transitions, 928 flow [2022-11-16 10:53:56,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 434 transitions, 920 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 10:53:56,815 INFO L231 Difference]: Finished difference. Result has 429 places, 428 transitions, 864 flow [2022-11-16 10:53:56,818 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=864, PETRI_PLACES=429, PETRI_TRANSITIONS=428} [2022-11-16 10:53:56,823 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -3 predicate places. [2022-11-16 10:53:56,824 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 428 transitions, 864 flow [2022-11-16 10:53:56,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states 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 10:53:56,825 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:53:56,826 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:53:56,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 10:53:56,827 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:53:56,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:53:56,828 INFO L85 PathProgramCache]: Analyzing trace with hash -151250792, now seen corresponding path program 1 times [2022-11-16 10:53:56,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:53:56,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801428081] [2022-11-16 10:53:56,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:53:56,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:53:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:53:56,916 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 10:53:56,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:53:56,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801428081] [2022-11-16 10:53:56,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801428081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:53:56,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:53:56,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:53:56,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542764239] [2022-11-16 10:53:56,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:53:56,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:53:56,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:53:56,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:53:56,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:53:56,923 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 472 [2022-11-16 10:53:56,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 428 transitions, 864 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states 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 10:53:56,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:53:56,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 472 [2022-11-16 10:53:56,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:53:57,343 INFO L130 PetriNetUnfolder]: 101/1740 cut-off events. [2022-11-16 10:53:57,343 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-16 10:53:57,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1885 conditions, 1740 events. 101/1740 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 11345 event pairs, 48 based on Foata normal form. 0/1453 useless extension candidates. Maximal degree in co-relation 1852. Up to 131 conditions per place. [2022-11-16 10:53:57,360 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 22 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2022-11-16 10:53:57,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 427 transitions, 910 flow [2022-11-16 10:53:57,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:53:57,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:53:57,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1318 transitions. [2022-11-16 10:53:57,366 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9307909604519774 [2022-11-16 10:53:57,366 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1318 transitions. [2022-11-16 10:53:57,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1318 transitions. [2022-11-16 10:53:57,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:53:57,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1318 transitions. [2022-11-16 10:53:57,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 439.3333333333333) internal successors, (1318), 3 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states 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 10:53:57,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:53:57,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:53:57,375 INFO L175 Difference]: Start difference. First operand has 429 places, 428 transitions, 864 flow. Second operand 3 states and 1318 transitions. [2022-11-16 10:53:57,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 427 transitions, 910 flow [2022-11-16 10:53:57,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 427 transitions, 906 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:53:57,383 INFO L231 Difference]: Finished difference. Result has 422 places, 427 transitions, 862 flow [2022-11-16 10:53:57,383 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=422, PETRI_TRANSITIONS=427} [2022-11-16 10:53:57,385 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -10 predicate places. [2022-11-16 10:53:57,385 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 427 transitions, 862 flow [2022-11-16 10:53:57,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states 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 10:53:57,386 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:53:57,387 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:53:57,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 10:53:57,387 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:53:57,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:53:57,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1968287616, now seen corresponding path program 1 times [2022-11-16 10:53:57,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:53:57,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370316331] [2022-11-16 10:53:57,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:53:57,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:53:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:53:57,468 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 10:53:57,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:53:57,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370316331] [2022-11-16 10:53:57,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370316331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:53:57,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:53:57,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:53:57,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287399425] [2022-11-16 10:53:57,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:53:57,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:53:57,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:53:57,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:53:57,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:53:57,473 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 472 [2022-11-16 10:53:57,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 427 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states 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 10:53:57,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:53:57,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 472 [2022-11-16 10:53:57,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:53:57,753 INFO L130 PetriNetUnfolder]: 62/1390 cut-off events. [2022-11-16 10:53:57,753 INFO L131 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2022-11-16 10:53:57,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1470 conditions, 1390 events. 62/1390 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 8182 event pairs, 24 based on Foata normal form. 0/1187 useless extension candidates. Maximal degree in co-relation 1429. Up to 67 conditions per place. [2022-11-16 10:53:57,765 INFO L137 encePairwiseOnDemand]: 466/472 looper letters, 15 selfloop transitions, 1 changer transitions 0/422 dead transitions. [2022-11-16 10:53:57,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 422 transitions, 884 flow [2022-11-16 10:53:57,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:53:57,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:53:57,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-16 10:53:57,768 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.934322033898305 [2022-11-16 10:53:57,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-16 10:53:57,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-16 10:53:57,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:53:57,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-16 10:53:57,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states 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 10:53:57,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:53:57,778 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:53:57,779 INFO L175 Difference]: Start difference. First operand has 422 places, 427 transitions, 862 flow. Second operand 3 states and 1323 transitions. [2022-11-16 10:53:57,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 422 transitions, 884 flow [2022-11-16 10:53:57,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 422 transitions, 880 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:53:57,787 INFO L231 Difference]: Finished difference. Result has 417 places, 422 transitions, 850 flow [2022-11-16 10:53:57,787 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=417, PETRI_TRANSITIONS=422} [2022-11-16 10:53:57,790 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -15 predicate places. [2022-11-16 10:53:57,790 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 422 transitions, 850 flow [2022-11-16 10:53:57,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states 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 10:53:57,791 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:53:57,792 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] [2022-11-16 10:53:57,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 10:53:57,792 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:53:57,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:53:57,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1772562868, now seen corresponding path program 1 times [2022-11-16 10:53:57,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:53:57,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080197937] [2022-11-16 10:53:57,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:53:57,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:53:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:53:57,926 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 10:53:57,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:53:57,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080197937] [2022-11-16 10:53:57,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080197937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:53:57,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:53:57,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:53:57,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301636020] [2022-11-16 10:53:57,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:53:57,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:53:57,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:53:57,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:53:57,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:53:57,931 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 472 [2022-11-16 10:53:57,932 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 422 transitions, 850 flow. Second operand has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states 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 10:53:57,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:53:57,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 472 [2022-11-16 10:53:57,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:53:58,260 INFO L130 PetriNetUnfolder]: 99/1449 cut-off events. [2022-11-16 10:53:58,261 INFO L131 PetriNetUnfolder]: For 21/22 co-relation queries the response was YES. [2022-11-16 10:53:58,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1604 conditions, 1449 events. 99/1449 cut-off events. For 21/22 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8505 event pairs, 48 based on Foata normal form. 0/1235 useless extension candidates. Maximal degree in co-relation 1564. Up to 142 conditions per place. [2022-11-16 10:53:58,271 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 19 selfloop transitions, 2 changer transitions 0/421 dead transitions. [2022-11-16 10:53:58,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 421 transitions, 890 flow [2022-11-16 10:53:58,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:53:58,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:53:58,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1324 transitions. [2022-11-16 10:53:58,276 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9350282485875706 [2022-11-16 10:53:58,277 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1324 transitions. [2022-11-16 10:53:58,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1324 transitions. [2022-11-16 10:53:58,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:53:58,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1324 transitions. [2022-11-16 10:53:58,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states 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 10:53:58,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:53:58,291 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:53:58,292 INFO L175 Difference]: Start difference. First operand has 417 places, 422 transitions, 850 flow. Second operand 3 states and 1324 transitions. [2022-11-16 10:53:58,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 421 transitions, 890 flow [2022-11-16 10:53:58,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 421 transitions, 889 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 10:53:58,303 INFO L231 Difference]: Finished difference. Result has 417 places, 421 transitions, 851 flow [2022-11-16 10:53:58,304 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=851, PETRI_PLACES=417, PETRI_TRANSITIONS=421} [2022-11-16 10:53:58,305 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -15 predicate places. [2022-11-16 10:53:58,309 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 421 transitions, 851 flow [2022-11-16 10:53:58,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states 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 10:53:58,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:53:58,311 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] [2022-11-16 10:53:58,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 10:53:58,312 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:53:58,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:53:58,312 INFO L85 PathProgramCache]: Analyzing trace with hash 740670494, now seen corresponding path program 1 times [2022-11-16 10:53:58,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:53:58,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557706779] [2022-11-16 10:53:58,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:53:58,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:53:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:53:58,889 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 10:53:58,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:53:58,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557706779] [2022-11-16 10:53:58,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557706779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:53:58,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:53:58,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:53:58,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972499571] [2022-11-16 10:53:58,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:53:58,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:53:58,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:53:58,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:53:58,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:53:58,895 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 472 [2022-11-16 10:53:58,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 421 transitions, 851 flow. Second operand has 6 states, 6 states have (on average 359.8333333333333) internal successors, (2159), 6 states have internal predecessors, (2159), 0 states have call successors, (0), 0 states 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 10:53:58,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:53:58,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 472 [2022-11-16 10:53:58,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:04,704 INFO L130 PetriNetUnfolder]: 8692/30576 cut-off events. [2022-11-16 10:54:04,704 INFO L131 PetriNetUnfolder]: For 68/78 co-relation queries the response was YES. [2022-11-16 10:54:04,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43583 conditions, 30576 events. 8692/30576 cut-off events. For 68/78 co-relation queries the response was YES. Maximal size of possible extension queue 619. Compared 354954 event pairs, 7968 based on Foata normal form. 0/25814 useless extension candidates. Maximal degree in co-relation 43544. Up to 12966 conditions per place. [2022-11-16 10:54:04,880 INFO L137 encePairwiseOnDemand]: 460/472 looper letters, 86 selfloop transitions, 10 changer transitions 0/419 dead transitions. [2022-11-16 10:54:04,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 419 transitions, 1039 flow [2022-11-16 10:54:04,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:54:04,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:54:04,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2246 transitions. [2022-11-16 10:54:04,887 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7930790960451978 [2022-11-16 10:54:04,887 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2246 transitions. [2022-11-16 10:54:04,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2246 transitions. [2022-11-16 10:54:04,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:04,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2246 transitions. [2022-11-16 10:54:04,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 374.3333333333333) internal successors, (2246), 6 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states 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 10:54:04,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states 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 10:54:04,901 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states 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 10:54:04,901 INFO L175 Difference]: Start difference. First operand has 417 places, 421 transitions, 851 flow. Second operand 6 states and 2246 transitions. [2022-11-16 10:54:04,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 419 transitions, 1039 flow [2022-11-16 10:54:04,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 419 transitions, 1035 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:54:04,910 INFO L231 Difference]: Finished difference. Result has 418 places, 419 transitions, 863 flow [2022-11-16 10:54:04,911 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=863, PETRI_PLACES=418, PETRI_TRANSITIONS=419} [2022-11-16 10:54:04,914 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -14 predicate places. [2022-11-16 10:54:04,914 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 419 transitions, 863 flow [2022-11-16 10:54:04,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 359.8333333333333) internal successors, (2159), 6 states have internal predecessors, (2159), 0 states have call successors, (0), 0 states 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 10:54:04,916 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:04,917 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] [2022-11-16 10:54:04,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 10:54:04,917 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:04,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:04,918 INFO L85 PathProgramCache]: Analyzing trace with hash 2010384283, now seen corresponding path program 1 times [2022-11-16 10:54:04,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:04,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008905332] [2022-11-16 10:54:04,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:04,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:04,986 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 10:54:04,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:04,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008905332] [2022-11-16 10:54:04,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008905332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:04,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:04,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:04,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622860994] [2022-11-16 10:54:04,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:04,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:04,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:04,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:04,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:04,993 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 472 [2022-11-16 10:54:04,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 419 transitions, 863 flow. Second operand has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states 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 10:54:04,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:04,996 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 472 [2022-11-16 10:54:04,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:05,361 INFO L130 PetriNetUnfolder]: 65/1367 cut-off events. [2022-11-16 10:54:05,361 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-16 10:54:05,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 1367 events. 65/1367 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7907 event pairs, 24 based on Foata normal form. 0/1186 useless extension candidates. Maximal degree in co-relation 1425. Up to 69 conditions per place. [2022-11-16 10:54:05,373 INFO L137 encePairwiseOnDemand]: 466/472 looper letters, 15 selfloop transitions, 1 changer transitions 0/414 dead transitions. [2022-11-16 10:54:05,373 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 414 transitions, 885 flow [2022-11-16 10:54:05,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:05,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:05,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-16 10:54:05,377 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.934322033898305 [2022-11-16 10:54:05,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-16 10:54:05,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-16 10:54:05,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:05,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-16 10:54:05,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states 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 10:54:05,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:05,388 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:05,389 INFO L175 Difference]: Start difference. First operand has 418 places, 419 transitions, 863 flow. Second operand 3 states and 1323 transitions. [2022-11-16 10:54:05,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 414 transitions, 885 flow [2022-11-16 10:54:05,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 414 transitions, 865 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 10:54:05,398 INFO L231 Difference]: Finished difference. Result has 410 places, 414 transitions, 835 flow [2022-11-16 10:54:05,398 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=835, PETRI_PLACES=410, PETRI_TRANSITIONS=414} [2022-11-16 10:54:05,403 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -22 predicate places. [2022-11-16 10:54:05,404 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 414 transitions, 835 flow [2022-11-16 10:54:05,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states 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 10:54:05,405 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:05,405 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] [2022-11-16 10:54:05,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 10:54:05,406 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:05,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:05,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1917793416, now seen corresponding path program 1 times [2022-11-16 10:54:05,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:05,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692803975] [2022-11-16 10:54:05,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:05,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:05,473 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 10:54:05,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:05,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692803975] [2022-11-16 10:54:05,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692803975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:05,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:05,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:05,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345793791] [2022-11-16 10:54:05,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:05,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:05,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:05,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:05,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:05,484 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 472 [2022-11-16 10:54:05,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 414 transitions, 835 flow. Second operand has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states 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 10:54:05,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:05,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 472 [2022-11-16 10:54:05,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:05,771 INFO L130 PetriNetUnfolder]: 99/1403 cut-off events. [2022-11-16 10:54:05,772 INFO L131 PetriNetUnfolder]: For 21/22 co-relation queries the response was YES. [2022-11-16 10:54:05,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1559 conditions, 1403 events. 99/1403 cut-off events. For 21/22 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 8239 event pairs, 48 based on Foata normal form. 0/1202 useless extension candidates. Maximal degree in co-relation 1519. Up to 142 conditions per place. [2022-11-16 10:54:05,783 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 19 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2022-11-16 10:54:05,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 413 transitions, 875 flow [2022-11-16 10:54:05,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:05,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:05,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1324 transitions. [2022-11-16 10:54:05,787 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9350282485875706 [2022-11-16 10:54:05,787 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1324 transitions. [2022-11-16 10:54:05,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1324 transitions. [2022-11-16 10:54:05,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:05,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1324 transitions. [2022-11-16 10:54:05,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states 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 10:54:05,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:05,797 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:05,797 INFO L175 Difference]: Start difference. First operand has 410 places, 414 transitions, 835 flow. Second operand 3 states and 1324 transitions. [2022-11-16 10:54:05,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 413 transitions, 875 flow [2022-11-16 10:54:05,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 413 transitions, 874 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 10:54:05,806 INFO L231 Difference]: Finished difference. Result has 410 places, 413 transitions, 836 flow [2022-11-16 10:54:05,807 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=836, PETRI_PLACES=410, PETRI_TRANSITIONS=413} [2022-11-16 10:54:05,808 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -22 predicate places. [2022-11-16 10:54:05,808 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 413 transitions, 836 flow [2022-11-16 10:54:05,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states 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 10:54:05,809 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:05,809 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] [2022-11-16 10:54:05,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 10:54:05,810 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:05,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:05,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1207247269, now seen corresponding path program 1 times [2022-11-16 10:54:05,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:05,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982454075] [2022-11-16 10:54:05,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:05,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:05,874 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 10:54:05,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:05,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982454075] [2022-11-16 10:54:05,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982454075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:05,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:05,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:05,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660549120] [2022-11-16 10:54:05,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:05,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:05,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:05,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:05,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:05,879 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 472 [2022-11-16 10:54:05,881 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 413 transitions, 836 flow. Second operand has 3 states, 3 states have (on average 436.3333333333333) internal successors, (1309), 3 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states 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 10:54:05,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:05,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 472 [2022-11-16 10:54:05,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:06,022 INFO L130 PetriNetUnfolder]: 23/635 cut-off events. [2022-11-16 10:54:06,022 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 10:54:06,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 685 conditions, 635 events. 23/635 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2175 event pairs, 5 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 646. Up to 29 conditions per place. [2022-11-16 10:54:06,027 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 19 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2022-11-16 10:54:06,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 413 transitions, 879 flow [2022-11-16 10:54:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:06,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:06,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1327 transitions. [2022-11-16 10:54:06,031 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9371468926553672 [2022-11-16 10:54:06,032 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1327 transitions. [2022-11-16 10:54:06,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1327 transitions. [2022-11-16 10:54:06,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:06,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1327 transitions. [2022-11-16 10:54:06,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 442.3333333333333) internal successors, (1327), 3 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states 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 10:54:06,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:06,041 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:06,041 INFO L175 Difference]: Start difference. First operand has 410 places, 413 transitions, 836 flow. Second operand 3 states and 1327 transitions. [2022-11-16 10:54:06,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 413 transitions, 879 flow [2022-11-16 10:54:06,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 413 transitions, 875 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:54:06,051 INFO L231 Difference]: Finished difference. Result has 409 places, 412 transitions, 834 flow [2022-11-16 10:54:06,052 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=834, PETRI_PLACES=409, PETRI_TRANSITIONS=412} [2022-11-16 10:54:06,052 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -23 predicate places. [2022-11-16 10:54:06,052 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 412 transitions, 834 flow [2022-11-16 10:54:06,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.3333333333333) internal successors, (1309), 3 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states 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 10:54:06,054 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:06,054 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 10:54:06,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 10:54:06,055 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:06,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:06,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1544809514, now seen corresponding path program 1 times [2022-11-16 10:54:06,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:06,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628608806] [2022-11-16 10:54:06,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:06,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:06,641 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 10:54:06,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:06,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628608806] [2022-11-16 10:54:06,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628608806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:06,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:06,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:54:06,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989415622] [2022-11-16 10:54:06,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:06,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:54:06,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:06,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:54:06,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:54:06,646 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 472 [2022-11-16 10:54:06,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 412 transitions, 834 flow. Second operand has 6 states, 6 states have (on average 375.8333333333333) internal successors, (2255), 6 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states 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 10:54:06,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:06,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 472 [2022-11-16 10:54:06,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:10,548 INFO L130 PetriNetUnfolder]: 8510/20674 cut-off events. [2022-11-16 10:54:10,548 INFO L131 PetriNetUnfolder]: For 31/398 co-relation queries the response was YES. [2022-11-16 10:54:10,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33659 conditions, 20674 events. 8510/20674 cut-off events. For 31/398 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 195450 event pairs, 2376 based on Foata normal form. 73/18055 useless extension candidates. Maximal degree in co-relation 33618. Up to 4141 conditions per place. [2022-11-16 10:54:10,676 INFO L137 encePairwiseOnDemand]: 467/472 looper letters, 265 selfloop transitions, 4 changer transitions 0/603 dead transitions. [2022-11-16 10:54:10,676 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 603 transitions, 1754 flow [2022-11-16 10:54:10,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:54:10,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:54:10,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2514 transitions. [2022-11-16 10:54:10,683 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8877118644067796 [2022-11-16 10:54:10,684 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2514 transitions. [2022-11-16 10:54:10,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2514 transitions. [2022-11-16 10:54:10,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:10,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2514 transitions. [2022-11-16 10:54:10,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 419.0) internal successors, (2514), 6 states have internal predecessors, (2514), 0 states have call successors, (0), 0 states 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 10:54:10,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states 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 10:54:10,699 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states 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 10:54:10,700 INFO L175 Difference]: Start difference. First operand has 409 places, 412 transitions, 834 flow. Second operand 6 states and 2514 transitions. [2022-11-16 10:54:10,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 603 transitions, 1754 flow [2022-11-16 10:54:10,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 603 transitions, 1750 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:54:10,712 INFO L231 Difference]: Finished difference. Result has 411 places, 411 transitions, 836 flow [2022-11-16 10:54:10,713 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=836, PETRI_PLACES=411, PETRI_TRANSITIONS=411} [2022-11-16 10:54:10,714 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -21 predicate places. [2022-11-16 10:54:10,714 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 411 transitions, 836 flow [2022-11-16 10:54:10,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 375.8333333333333) internal successors, (2255), 6 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states 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 10:54:10,715 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:10,715 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:54:10,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 10:54:10,716 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:10,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:10,717 INFO L85 PathProgramCache]: Analyzing trace with hash 340040794, now seen corresponding path program 1 times [2022-11-16 10:54:10,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:10,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336443521] [2022-11-16 10:54:10,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:10,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:10,789 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 10:54:10,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:10,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336443521] [2022-11-16 10:54:10,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336443521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:10,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:10,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:10,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817549653] [2022-11-16 10:54:10,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:10,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:10,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:10,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:10,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:10,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 472 [2022-11-16 10:54:10,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 411 transitions, 836 flow. Second operand has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states 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 10:54:10,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:10,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 472 [2022-11-16 10:54:10,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:10,905 INFO L130 PetriNetUnfolder]: 20/525 cut-off events. [2022-11-16 10:54:10,905 INFO L131 PetriNetUnfolder]: For 9/10 co-relation queries the response was YES. [2022-11-16 10:54:10,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 525 events. 20/525 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1545 event pairs, 2 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 530. Up to 28 conditions per place. [2022-11-16 10:54:10,908 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 18 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2022-11-16 10:54:10,909 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 411 transitions, 877 flow [2022-11-16 10:54:10,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:10,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:10,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1326 transitions. [2022-11-16 10:54:10,913 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9364406779661016 [2022-11-16 10:54:10,913 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1326 transitions. [2022-11-16 10:54:10,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1326 transitions. [2022-11-16 10:54:10,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:10,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1326 transitions. [2022-11-16 10:54:10,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states 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 10:54:10,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:10,920 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:10,921 INFO L175 Difference]: Start difference. First operand has 411 places, 411 transitions, 836 flow. Second operand 3 states and 1326 transitions. [2022-11-16 10:54:10,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 411 transitions, 877 flow [2022-11-16 10:54:10,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 411 transitions, 870 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 10:54:10,927 INFO L231 Difference]: Finished difference. Result has 408 places, 410 transitions, 831 flow [2022-11-16 10:54:10,928 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=831, PETRI_PLACES=408, PETRI_TRANSITIONS=410} [2022-11-16 10:54:10,929 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -24 predicate places. [2022-11-16 10:54:10,929 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 410 transitions, 831 flow [2022-11-16 10:54:10,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states 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 10:54:10,930 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:10,930 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] [2022-11-16 10:54:10,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 10:54:10,930 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:10,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:10,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1070296566, now seen corresponding path program 1 times [2022-11-16 10:54:10,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:10,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868427081] [2022-11-16 10:54:10,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:10,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:10,978 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 10:54:10,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:10,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868427081] [2022-11-16 10:54:10,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868427081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:10,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:10,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 10:54:10,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47099379] [2022-11-16 10:54:10,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:10,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:10,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:10,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:10,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:10,984 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 472 [2022-11-16 10:54:10,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 410 transitions, 831 flow. Second operand has 3 states, 3 states have (on average 445.6666666666667) internal successors, (1337), 3 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states 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 10:54:10,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:10,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 472 [2022-11-16 10:54:10,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:11,083 INFO L130 PetriNetUnfolder]: 24/631 cut-off events. [2022-11-16 10:54:11,084 INFO L131 PetriNetUnfolder]: For 2/9 co-relation queries the response was YES. [2022-11-16 10:54:11,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 631 events. 24/631 cut-off events. For 2/9 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2096 event pairs, 6 based on Foata normal form. 1/565 useless extension candidates. Maximal degree in co-relation 644. Up to 24 conditions per place. [2022-11-16 10:54:11,088 INFO L137 encePairwiseOnDemand]: 468/472 looper letters, 11 selfloop transitions, 3 changer transitions 0/412 dead transitions. [2022-11-16 10:54:11,089 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 412 transitions, 864 flow [2022-11-16 10:54:11,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:11,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:11,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1347 transitions. [2022-11-16 10:54:11,092 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.951271186440678 [2022-11-16 10:54:11,092 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1347 transitions. [2022-11-16 10:54:11,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1347 transitions. [2022-11-16 10:54:11,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:11,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1347 transitions. [2022-11-16 10:54:11,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 449.0) internal successors, (1347), 3 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states 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 10:54:11,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:11,100 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:11,100 INFO L175 Difference]: Start difference. First operand has 408 places, 410 transitions, 831 flow. Second operand 3 states and 1347 transitions. [2022-11-16 10:54:11,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 412 transitions, 864 flow [2022-11-16 10:54:11,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 412 transitions, 860 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:54:11,107 INFO L231 Difference]: Finished difference. Result has 410 places, 411 transitions, 845 flow [2022-11-16 10:54:11,108 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=845, PETRI_PLACES=410, PETRI_TRANSITIONS=411} [2022-11-16 10:54:11,108 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -22 predicate places. [2022-11-16 10:54:11,109 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 411 transitions, 845 flow [2022-11-16 10:54:11,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 445.6666666666667) internal successors, (1337), 3 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states 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 10:54:11,109 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:11,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:54:11,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 10:54:11,110 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:11,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:11,110 INFO L85 PathProgramCache]: Analyzing trace with hash 87623946, now seen corresponding path program 1 times [2022-11-16 10:54:11,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:11,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473036733] [2022-11-16 10:54:11,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:11,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:11,161 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 10:54:11,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:11,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473036733] [2022-11-16 10:54:11,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473036733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:11,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:11,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:11,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783442220] [2022-11-16 10:54:11,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:11,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:11,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:11,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:11,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:11,165 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 472 [2022-11-16 10:54:11,167 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 411 transitions, 845 flow. Second operand has 3 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states 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 10:54:11,167 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:11,167 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 472 [2022-11-16 10:54:11,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:11,368 INFO L130 PetriNetUnfolder]: 69/1245 cut-off events. [2022-11-16 10:54:11,368 INFO L131 PetriNetUnfolder]: For 24/25 co-relation queries the response was YES. [2022-11-16 10:54:11,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1375 conditions, 1245 events. 69/1245 cut-off events. For 24/25 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6846 event pairs, 12 based on Foata normal form. 0/1109 useless extension candidates. Maximal degree in co-relation 1335. Up to 79 conditions per place. [2022-11-16 10:54:11,378 INFO L137 encePairwiseOnDemand]: 466/472 looper letters, 17 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2022-11-16 10:54:11,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 412 transitions, 888 flow [2022-11-16 10:54:11,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:11,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:11,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1334 transitions. [2022-11-16 10:54:11,382 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.942090395480226 [2022-11-16 10:54:11,382 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1334 transitions. [2022-11-16 10:54:11,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1334 transitions. [2022-11-16 10:54:11,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:11,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1334 transitions. [2022-11-16 10:54:11,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states 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 10:54:11,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:11,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:11,391 INFO L175 Difference]: Start difference. First operand has 410 places, 411 transitions, 845 flow. Second operand 3 states and 1334 transitions. [2022-11-16 10:54:11,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 412 transitions, 888 flow [2022-11-16 10:54:11,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 412 transitions, 882 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:54:11,400 INFO L231 Difference]: Finished difference. Result has 407 places, 409 transitions, 845 flow [2022-11-16 10:54:11,400 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=845, PETRI_PLACES=407, PETRI_TRANSITIONS=409} [2022-11-16 10:54:11,401 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -25 predicate places. [2022-11-16 10:54:11,402 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 409 transitions, 845 flow [2022-11-16 10:54:11,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states 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 10:54:11,402 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:11,403 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] [2022-11-16 10:54:11,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 10:54:11,403 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:11,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:11,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1303592878, now seen corresponding path program 1 times [2022-11-16 10:54:11,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:11,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007286210] [2022-11-16 10:54:11,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:11,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:11,650 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 10:54:11,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:11,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007286210] [2022-11-16 10:54:11,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007286210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:11,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:11,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 10:54:11,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361146846] [2022-11-16 10:54:11,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:11,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 10:54:11,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:11,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 10:54:11,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 10:54:11,660 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 472 [2022-11-16 10:54:11,663 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 409 transitions, 845 flow. Second operand has 8 states, 8 states have (on average 376.0) internal successors, (3008), 8 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states 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 10:54:11,663 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:11,663 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 472 [2022-11-16 10:54:11,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:12,147 INFO L130 PetriNetUnfolder]: 269/1757 cut-off events. [2022-11-16 10:54:12,147 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-16 10:54:12,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2493 conditions, 1757 events. 269/1757 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 11070 event pairs, 149 based on Foata normal form. 5/1595 useless extension candidates. Maximal degree in co-relation 2451. Up to 428 conditions per place. [2022-11-16 10:54:12,155 INFO L137 encePairwiseOnDemand]: 457/472 looper letters, 114 selfloop transitions, 17 changer transitions 0/457 dead transitions. [2022-11-16 10:54:12,155 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 457 transitions, 1216 flow [2022-11-16 10:54:12,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 10:54:12,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 10:54:12,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4596 transitions. [2022-11-16 10:54:12,166 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8114406779661016 [2022-11-16 10:54:12,166 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4596 transitions. [2022-11-16 10:54:12,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4596 transitions. [2022-11-16 10:54:12,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:12,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4596 transitions. [2022-11-16 10:54:12,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 383.0) internal successors, (4596), 12 states have internal predecessors, (4596), 0 states have call successors, (0), 0 states 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 10:54:12,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 472.0) internal successors, (6136), 13 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states 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 10:54:12,189 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 472.0) internal successors, (6136), 13 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states 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 10:54:12,189 INFO L175 Difference]: Start difference. First operand has 407 places, 409 transitions, 845 flow. Second operand 12 states and 4596 transitions. [2022-11-16 10:54:12,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 457 transitions, 1216 flow [2022-11-16 10:54:12,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 457 transitions, 1216 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 10:54:12,198 INFO L231 Difference]: Finished difference. Result has 423 places, 417 transitions, 930 flow [2022-11-16 10:54:12,199 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=845, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=930, PETRI_PLACES=423, PETRI_TRANSITIONS=417} [2022-11-16 10:54:12,199 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -9 predicate places. [2022-11-16 10:54:12,199 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 417 transitions, 930 flow [2022-11-16 10:54:12,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 376.0) internal successors, (3008), 8 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states 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 10:54:12,201 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:12,201 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] [2022-11-16 10:54:12,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 10:54:12,201 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:12,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:12,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1689111661, now seen corresponding path program 1 times [2022-11-16 10:54:12,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:12,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584779138] [2022-11-16 10:54:12,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:12,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:12,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:12,269 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 10:54:12,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:12,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584779138] [2022-11-16 10:54:12,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584779138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:12,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:12,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 10:54:12,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518218476] [2022-11-16 10:54:12,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:12,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:12,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:12,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:12,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:12,273 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 472 [2022-11-16 10:54:12,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 417 transitions, 930 flow. Second operand has 3 states, 3 states have (on average 446.0) internal successors, (1338), 3 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states 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 10:54:12,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:12,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 472 [2022-11-16 10:54:12,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:12,476 INFO L130 PetriNetUnfolder]: 86/1196 cut-off events. [2022-11-16 10:54:12,477 INFO L131 PetriNetUnfolder]: For 74/91 co-relation queries the response was YES. [2022-11-16 10:54:12,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1431 conditions, 1196 events. 86/1196 cut-off events. For 74/91 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6492 event pairs, 24 based on Foata normal form. 2/1072 useless extension candidates. Maximal degree in co-relation 1382. Up to 98 conditions per place. [2022-11-16 10:54:12,485 INFO L137 encePairwiseOnDemand]: 468/472 looper letters, 11 selfloop transitions, 3 changer transitions 0/419 dead transitions. [2022-11-16 10:54:12,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 419 transitions, 963 flow [2022-11-16 10:54:12,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:12,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:12,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1347 transitions. [2022-11-16 10:54:12,488 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.951271186440678 [2022-11-16 10:54:12,488 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1347 transitions. [2022-11-16 10:54:12,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1347 transitions. [2022-11-16 10:54:12,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:12,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1347 transitions. [2022-11-16 10:54:12,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 449.0) internal successors, (1347), 3 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states 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 10:54:12,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:12,495 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:12,495 INFO L175 Difference]: Start difference. First operand has 423 places, 417 transitions, 930 flow. Second operand 3 states and 1347 transitions. [2022-11-16 10:54:12,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 419 transitions, 963 flow [2022-11-16 10:54:12,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 419 transitions, 961 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 10:54:12,505 INFO L231 Difference]: Finished difference. Result has 426 places, 418 transitions, 946 flow [2022-11-16 10:54:12,505 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=928, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=946, PETRI_PLACES=426, PETRI_TRANSITIONS=418} [2022-11-16 10:54:12,506 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -6 predicate places. [2022-11-16 10:54:12,506 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 418 transitions, 946 flow [2022-11-16 10:54:12,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 446.0) internal successors, (1338), 3 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states 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 10:54:12,507 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:12,507 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] [2022-11-16 10:54:12,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 10:54:12,508 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:12,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:12,508 INFO L85 PathProgramCache]: Analyzing trace with hash -287089619, now seen corresponding path program 1 times [2022-11-16 10:54:12,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:12,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899405270] [2022-11-16 10:54:12,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:12,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:12,734 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 10:54:12,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:12,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899405270] [2022-11-16 10:54:12,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899405270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:12,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:12,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 10:54:12,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359187943] [2022-11-16 10:54:12,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:12,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 10:54:12,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:12,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 10:54:12,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 10:54:12,739 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 472 [2022-11-16 10:54:12,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 418 transitions, 946 flow. Second operand has 8 states, 8 states have (on average 376.125) internal successors, (3009), 8 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 10:54:12,743 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:12,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 472 [2022-11-16 10:54:12,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:13,163 INFO L130 PetriNetUnfolder]: 256/1548 cut-off events. [2022-11-16 10:54:13,163 INFO L131 PetriNetUnfolder]: For 244/244 co-relation queries the response was YES. [2022-11-16 10:54:13,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2445 conditions, 1548 events. 256/1548 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 9562 event pairs, 141 based on Foata normal form. 4/1441 useless extension candidates. Maximal degree in co-relation 2392. Up to 427 conditions per place. [2022-11-16 10:54:13,171 INFO L137 encePairwiseOnDemand]: 457/472 looper letters, 114 selfloop transitions, 17 changer transitions 0/461 dead transitions. [2022-11-16 10:54:13,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 461 transitions, 1321 flow [2022-11-16 10:54:13,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 10:54:13,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 10:54:13,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4596 transitions. [2022-11-16 10:54:13,181 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8114406779661016 [2022-11-16 10:54:13,181 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4596 transitions. [2022-11-16 10:54:13,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4596 transitions. [2022-11-16 10:54:13,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:13,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4596 transitions. [2022-11-16 10:54:13,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 383.0) internal successors, (4596), 12 states have internal predecessors, (4596), 0 states have call successors, (0), 0 states 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 10:54:13,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 472.0) internal successors, (6136), 13 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states 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 10:54:13,202 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 472.0) internal successors, (6136), 13 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states 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 10:54:13,202 INFO L175 Difference]: Start difference. First operand has 426 places, 418 transitions, 946 flow. Second operand 12 states and 4596 transitions. [2022-11-16 10:54:13,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 461 transitions, 1321 flow [2022-11-16 10:54:13,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 461 transitions, 1311 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:54:13,212 INFO L231 Difference]: Finished difference. Result has 439 places, 422 transitions, 1010 flow [2022-11-16 10:54:13,212 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=940, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1010, PETRI_PLACES=439, PETRI_TRANSITIONS=422} [2022-11-16 10:54:13,213 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 7 predicate places. [2022-11-16 10:54:13,213 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 422 transitions, 1010 flow [2022-11-16 10:54:13,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 376.125) internal successors, (3009), 8 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 10:54:13,214 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:13,214 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:54:13,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 10:54:13,215 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:13,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:13,215 INFO L85 PathProgramCache]: Analyzing trace with hash 671563270, now seen corresponding path program 1 times [2022-11-16 10:54:13,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:13,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681788155] [2022-11-16 10:54:13,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:13,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:13,673 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 10:54:13,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:13,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681788155] [2022-11-16 10:54:13,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681788155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:13,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:13,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:54:13,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710781100] [2022-11-16 10:54:13,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:13,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:54:13,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:13,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:54:13,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:54:13,678 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 472 [2022-11-16 10:54:13,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 422 transitions, 1010 flow. Second operand has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states 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 10:54:13,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:13,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 472 [2022-11-16 10:54:13,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:18,407 INFO L130 PetriNetUnfolder]: 7493/26580 cut-off events. [2022-11-16 10:54:18,407 INFO L131 PetriNetUnfolder]: For 539/558 co-relation queries the response was YES. [2022-11-16 10:54:18,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40522 conditions, 26580 events. 7493/26580 cut-off events. For 539/558 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 296897 event pairs, 6797 based on Foata normal form. 4/23753 useless extension candidates. Maximal degree in co-relation 40462. Up to 11026 conditions per place. [2022-11-16 10:54:18,740 INFO L137 encePairwiseOnDemand]: 467/472 looper letters, 168 selfloop transitions, 4 changer transitions 0/517 dead transitions. [2022-11-16 10:54:18,740 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 517 transitions, 1544 flow [2022-11-16 10:54:18,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:54:18,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:54:18,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2417 transitions. [2022-11-16 10:54:18,747 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8534604519774012 [2022-11-16 10:54:18,747 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2417 transitions. [2022-11-16 10:54:18,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2417 transitions. [2022-11-16 10:54:18,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:18,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2417 transitions. [2022-11-16 10:54:18,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 402.8333333333333) internal successors, (2417), 6 states have internal predecessors, (2417), 0 states have call successors, (0), 0 states 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 10:54:18,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states 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 10:54:18,761 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states 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 10:54:18,761 INFO L175 Difference]: Start difference. First operand has 439 places, 422 transitions, 1010 flow. Second operand 6 states and 2417 transitions. [2022-11-16 10:54:18,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 517 transitions, 1544 flow [2022-11-16 10:54:18,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 517 transitions, 1529 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 10:54:18,799 INFO L231 Difference]: Finished difference. Result has 437 places, 421 transitions, 1001 flow [2022-11-16 10:54:18,800 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=993, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1001, PETRI_PLACES=437, PETRI_TRANSITIONS=421} [2022-11-16 10:54:18,800 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 5 predicate places. [2022-11-16 10:54:18,801 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 421 transitions, 1001 flow [2022-11-16 10:54:18,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states 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 10:54:18,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:18,802 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] [2022-11-16 10:54:18,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 10:54:18,802 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:18,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:18,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1171973006, now seen corresponding path program 1 times [2022-11-16 10:54:18,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:18,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522421149] [2022-11-16 10:54:18,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:18,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:19,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 10:54:19,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:19,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522421149] [2022-11-16 10:54:19,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522421149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:19,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:19,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 10:54:19,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625630607] [2022-11-16 10:54:19,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:19,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 10:54:19,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:19,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 10:54:19,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 10:54:19,049 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 472 [2022-11-16 10:54:19,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 421 transitions, 1001 flow. Second operand has 8 states, 8 states have (on average 377.125) internal successors, (3017), 8 states have internal predecessors, (3017), 0 states have call successors, (0), 0 states 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 10:54:19,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:19,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 472 [2022-11-16 10:54:19,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:19,832 INFO L130 PetriNetUnfolder]: 310/2047 cut-off events. [2022-11-16 10:54:19,832 INFO L131 PetriNetUnfolder]: For 184/184 co-relation queries the response was YES. [2022-11-16 10:54:19,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3256 conditions, 2047 events. 310/2047 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 13680 event pairs, 163 based on Foata normal form. 5/1904 useless extension candidates. Maximal degree in co-relation 3195. Up to 522 conditions per place. [2022-11-16 10:54:19,840 INFO L137 encePairwiseOnDemand]: 460/472 looper letters, 111 selfloop transitions, 15 changer transitions 0/456 dead transitions. [2022-11-16 10:54:19,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 456 transitions, 1370 flow [2022-11-16 10:54:19,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 10:54:19,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 10:54:19,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3461 transitions. [2022-11-16 10:54:19,850 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8147363465160076 [2022-11-16 10:54:19,850 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3461 transitions. [2022-11-16 10:54:19,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3461 transitions. [2022-11-16 10:54:19,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:19,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3461 transitions. [2022-11-16 10:54:19,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 384.55555555555554) internal successors, (3461), 9 states have internal predecessors, (3461), 0 states have call successors, (0), 0 states 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 10:54:19,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 472.0) internal successors, (4720), 10 states have internal predecessors, (4720), 0 states have call successors, (0), 0 states 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 10:54:19,867 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 472.0) internal successors, (4720), 10 states have internal predecessors, (4720), 0 states have call successors, (0), 0 states 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 10:54:19,867 INFO L175 Difference]: Start difference. First operand has 437 places, 421 transitions, 1001 flow. Second operand 9 states and 3461 transitions. [2022-11-16 10:54:19,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 456 transitions, 1370 flow [2022-11-16 10:54:19,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 456 transitions, 1363 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 10:54:19,876 INFO L231 Difference]: Finished difference. Result has 445 places, 430 transitions, 1106 flow [2022-11-16 10:54:19,877 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1106, PETRI_PLACES=445, PETRI_TRANSITIONS=430} [2022-11-16 10:54:19,877 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 13 predicate places. [2022-11-16 10:54:19,878 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 430 transitions, 1106 flow [2022-11-16 10:54:19,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 377.125) internal successors, (3017), 8 states have internal predecessors, (3017), 0 states have call successors, (0), 0 states 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 10:54:19,879 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:19,879 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:54:19,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 10:54:19,879 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:19,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:19,880 INFO L85 PathProgramCache]: Analyzing trace with hash -574253583, now seen corresponding path program 1 times [2022-11-16 10:54:19,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:19,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052065027] [2022-11-16 10:54:19,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:19,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:20,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 10:54:20,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:20,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052065027] [2022-11-16 10:54:20,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052065027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:20,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:20,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 10:54:20,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737949980] [2022-11-16 10:54:20,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:20,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 10:54:20,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:20,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 10:54:20,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 10:54:20,118 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 472 [2022-11-16 10:54:20,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 430 transitions, 1106 flow. Second operand has 8 states, 8 states have (on average 377.25) internal successors, (3018), 8 states have internal predecessors, (3018), 0 states have call successors, (0), 0 states 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 10:54:20,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:20,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 472 [2022-11-16 10:54:20,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:20,691 INFO L130 PetriNetUnfolder]: 344/2007 cut-off events. [2022-11-16 10:54:20,691 INFO L131 PetriNetUnfolder]: For 518/613 co-relation queries the response was YES. [2022-11-16 10:54:20,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3331 conditions, 2007 events. 344/2007 cut-off events. For 518/613 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 13764 event pairs, 151 based on Foata normal form. 10/1871 useless extension candidates. Maximal degree in co-relation 3264. Up to 508 conditions per place. [2022-11-16 10:54:20,699 INFO L137 encePairwiseOnDemand]: 459/472 looper letters, 109 selfloop transitions, 20 changer transitions 0/465 dead transitions. [2022-11-16 10:54:20,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 465 transitions, 1492 flow [2022-11-16 10:54:20,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 10:54:20,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 10:54:20,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3837 transitions. [2022-11-16 10:54:20,707 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8129237288135593 [2022-11-16 10:54:20,707 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3837 transitions. [2022-11-16 10:54:20,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3837 transitions. [2022-11-16 10:54:20,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:20,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3837 transitions. [2022-11-16 10:54:20,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 383.7) internal successors, (3837), 10 states have internal predecessors, (3837), 0 states have call successors, (0), 0 states 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 10:54:20,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 472.0) internal successors, (5192), 11 states have internal predecessors, (5192), 0 states have call successors, (0), 0 states 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 10:54:20,724 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 472.0) internal successors, (5192), 11 states have internal predecessors, (5192), 0 states have call successors, (0), 0 states 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 10:54:20,725 INFO L175 Difference]: Start difference. First operand has 445 places, 430 transitions, 1106 flow. Second operand 10 states and 3837 transitions. [2022-11-16 10:54:20,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 465 transitions, 1492 flow [2022-11-16 10:54:20,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 465 transitions, 1480 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 10:54:20,735 INFO L231 Difference]: Finished difference. Result has 454 places, 438 transitions, 1214 flow [2022-11-16 10:54:20,735 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1214, PETRI_PLACES=454, PETRI_TRANSITIONS=438} [2022-11-16 10:54:20,736 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 22 predicate places. [2022-11-16 10:54:20,736 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 438 transitions, 1214 flow [2022-11-16 10:54:20,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 377.25) internal successors, (3018), 8 states have internal predecessors, (3018), 0 states have call successors, (0), 0 states 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 10:54:20,737 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:20,737 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] [2022-11-16 10:54:20,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 10:54:20,738 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:20,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:20,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1447355507, now seen corresponding path program 1 times [2022-11-16 10:54:20,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:20,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381990846] [2022-11-16 10:54:20,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:20,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:21,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 10:54:21,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:21,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381990846] [2022-11-16 10:54:21,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381990846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:21,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:21,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:54:21,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388265885] [2022-11-16 10:54:21,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:21,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:54:21,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:21,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:54:21,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:54:21,212 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 472 [2022-11-16 10:54:21,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 438 transitions, 1214 flow. Second operand has 6 states, 6 states have (on average 370.6666666666667) internal successors, (2224), 6 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states 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 10:54:21,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:21,215 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 472 [2022-11-16 10:54:21,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:26,857 INFO L130 PetriNetUnfolder]: 10085/28442 cut-off events. [2022-11-16 10:54:26,857 INFO L131 PetriNetUnfolder]: For 2152/2294 co-relation queries the response was YES. [2022-11-16 10:54:26,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47604 conditions, 28442 events. 10085/28442 cut-off events. For 2152/2294 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 287180 event pairs, 1930 based on Foata normal form. 0/25746 useless extension candidates. Maximal degree in co-relation 47534. Up to 10929 conditions per place. [2022-11-16 10:54:26,981 INFO L137 encePairwiseOnDemand]: 465/472 looper letters, 218 selfloop transitions, 5 changer transitions 0/571 dead transitions. [2022-11-16 10:54:26,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 571 transitions, 1937 flow [2022-11-16 10:54:26,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:54:26,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:54:26,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2422 transitions. [2022-11-16 10:54:26,985 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.855225988700565 [2022-11-16 10:54:26,986 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2422 transitions. [2022-11-16 10:54:26,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2422 transitions. [2022-11-16 10:54:26,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:26,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2422 transitions. [2022-11-16 10:54:26,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 403.6666666666667) internal successors, (2422), 6 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states 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 10:54:26,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states 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 10:54:26,994 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states 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 10:54:26,995 INFO L175 Difference]: Start difference. First operand has 454 places, 438 transitions, 1214 flow. Second operand 6 states and 2422 transitions. [2022-11-16 10:54:26,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 571 transitions, 1937 flow [2022-11-16 10:54:27,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 571 transitions, 1925 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 10:54:27,018 INFO L231 Difference]: Finished difference. Result has 453 places, 436 transitions, 1208 flow [2022-11-16 10:54:27,019 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1198, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1208, PETRI_PLACES=453, PETRI_TRANSITIONS=436} [2022-11-16 10:54:27,019 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 21 predicate places. [2022-11-16 10:54:27,019 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 436 transitions, 1208 flow [2022-11-16 10:54:27,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.6666666666667) internal successors, (2224), 6 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states 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 10:54:27,020 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:27,020 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] [2022-11-16 10:54:27,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 10:54:27,021 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:27,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:27,021 INFO L85 PathProgramCache]: Analyzing trace with hash 660797583, now seen corresponding path program 1 times [2022-11-16 10:54:27,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:27,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972196155] [2022-11-16 10:54:27,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:27,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:27,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 10:54:27,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:27,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972196155] [2022-11-16 10:54:27,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972196155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:27,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:27,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:27,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533361784] [2022-11-16 10:54:27,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:27,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:27,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:27,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:27,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:27,081 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 472 [2022-11-16 10:54:27,082 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 436 transitions, 1208 flow. Second operand has 3 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states 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 10:54:27,082 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:27,082 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 472 [2022-11-16 10:54:27,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:27,441 INFO L130 PetriNetUnfolder]: 85/1854 cut-off events. [2022-11-16 10:54:27,441 INFO L131 PetriNetUnfolder]: For 274/278 co-relation queries the response was YES. [2022-11-16 10:54:27,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2398 conditions, 1854 events. 85/1854 cut-off events. For 274/278 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10861 event pairs, 17 based on Foata normal form. 0/1720 useless extension candidates. Maximal degree in co-relation 2331. Up to 89 conditions per place. [2022-11-16 10:54:27,448 INFO L137 encePairwiseOnDemand]: 466/472 looper letters, 17 selfloop transitions, 2 changer transitions 0/437 dead transitions. [2022-11-16 10:54:27,449 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 437 transitions, 1251 flow [2022-11-16 10:54:27,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:27,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:27,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1334 transitions. [2022-11-16 10:54:27,452 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.942090395480226 [2022-11-16 10:54:27,452 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1334 transitions. [2022-11-16 10:54:27,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1334 transitions. [2022-11-16 10:54:27,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:27,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1334 transitions. [2022-11-16 10:54:27,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states 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 10:54:27,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:27,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:27,456 INFO L175 Difference]: Start difference. First operand has 453 places, 436 transitions, 1208 flow. Second operand 3 states and 1334 transitions. [2022-11-16 10:54:27,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 437 transitions, 1251 flow [2022-11-16 10:54:27,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 437 transitions, 1241 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 10:54:27,467 INFO L231 Difference]: Finished difference. Result has 447 places, 434 transitions, 1204 flow [2022-11-16 10:54:27,467 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1190, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1204, PETRI_PLACES=447, PETRI_TRANSITIONS=434} [2022-11-16 10:54:27,468 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 15 predicate places. [2022-11-16 10:54:27,468 INFO L495 AbstractCegarLoop]: Abstraction has has 447 places, 434 transitions, 1204 flow [2022-11-16 10:54:27,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states 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 10:54:27,468 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:27,469 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:54:27,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 10:54:27,469 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:27,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:27,470 INFO L85 PathProgramCache]: Analyzing trace with hash -219638580, now seen corresponding path program 1 times [2022-11-16 10:54:27,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:27,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485809255] [2022-11-16 10:54:27,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:27,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:28,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 10:54:28,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:28,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485809255] [2022-11-16 10:54:28,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485809255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:28,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:28,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:54:28,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730920937] [2022-11-16 10:54:28,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:28,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:54:28,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:28,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:54:28,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:54:28,091 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 472 [2022-11-16 10:54:28,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 434 transitions, 1204 flow. Second operand has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states 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 10:54:28,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:28,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 472 [2022-11-16 10:54:28,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:33,778 INFO L130 PetriNetUnfolder]: 10272/28025 cut-off events. [2022-11-16 10:54:33,779 INFO L131 PetriNetUnfolder]: For 2472/2547 co-relation queries the response was YES. [2022-11-16 10:54:33,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47957 conditions, 28025 events. 10272/28025 cut-off events. For 2472/2547 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 275837 event pairs, 1962 based on Foata normal form. 2/26215 useless extension candidates. Maximal degree in co-relation 47889. Up to 10797 conditions per place. [2022-11-16 10:54:33,912 INFO L137 encePairwiseOnDemand]: 465/472 looper letters, 222 selfloop transitions, 5 changer transitions 0/573 dead transitions. [2022-11-16 10:54:33,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 573 transitions, 1949 flow [2022-11-16 10:54:33,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:54:33,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:54:33,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2426 transitions. [2022-11-16 10:54:33,915 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.856638418079096 [2022-11-16 10:54:33,915 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2426 transitions. [2022-11-16 10:54:33,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2426 transitions. [2022-11-16 10:54:33,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:33,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2426 transitions. [2022-11-16 10:54:33,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 404.3333333333333) internal successors, (2426), 6 states have internal predecessors, (2426), 0 states have call successors, (0), 0 states 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 10:54:33,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states 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 10:54:33,922 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states 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 10:54:33,922 INFO L175 Difference]: Start difference. First operand has 447 places, 434 transitions, 1204 flow. Second operand 6 states and 2426 transitions. [2022-11-16 10:54:33,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 573 transitions, 1949 flow [2022-11-16 10:54:33,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 573 transitions, 1949 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 10:54:33,943 INFO L231 Difference]: Finished difference. Result has 450 places, 432 transitions, 1210 flow [2022-11-16 10:54:33,944 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1200, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1210, PETRI_PLACES=450, PETRI_TRANSITIONS=432} [2022-11-16 10:54:33,945 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 18 predicate places. [2022-11-16 10:54:33,945 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 432 transitions, 1210 flow [2022-11-16 10:54:33,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states 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 10:54:33,945 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:33,946 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] [2022-11-16 10:54:33,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 10:54:33,946 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:33,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:33,946 INFO L85 PathProgramCache]: Analyzing trace with hash 243456722, now seen corresponding path program 1 times [2022-11-16 10:54:33,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:33,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547924143] [2022-11-16 10:54:33,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:33,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:34,004 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 10:54:34,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:34,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547924143] [2022-11-16 10:54:34,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547924143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:34,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:34,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:34,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570871326] [2022-11-16 10:54:34,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:34,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:34,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:34,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:34,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:34,008 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 472 [2022-11-16 10:54:34,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 432 transitions, 1210 flow. Second operand has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states 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 10:54:34,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:34,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 472 [2022-11-16 10:54:34,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:34,272 INFO L130 PetriNetUnfolder]: 57/1556 cut-off events. [2022-11-16 10:54:34,272 INFO L131 PetriNetUnfolder]: For 335/344 co-relation queries the response was YES. [2022-11-16 10:54:34,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2194 conditions, 1556 events. 57/1556 cut-off events. For 335/344 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 8211 event pairs, 12 based on Foata normal form. 0/1491 useless extension candidates. Maximal degree in co-relation 2126. Up to 56 conditions per place. [2022-11-16 10:54:34,279 INFO L137 encePairwiseOnDemand]: 468/472 looper letters, 14 selfloop transitions, 1 changer transitions 0/429 dead transitions. [2022-11-16 10:54:34,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 429 transitions, 1234 flow [2022-11-16 10:54:34,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:34,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:34,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1329 transitions. [2022-11-16 10:54:34,281 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9385593220338984 [2022-11-16 10:54:34,281 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1329 transitions. [2022-11-16 10:54:34,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1329 transitions. [2022-11-16 10:54:34,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:34,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1329 transitions. [2022-11-16 10:54:34,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 443.0) internal successors, (1329), 3 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states 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 10:54:34,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:34,284 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:34,285 INFO L175 Difference]: Start difference. First operand has 450 places, 432 transitions, 1210 flow. Second operand 3 states and 1329 transitions. [2022-11-16 10:54:34,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 429 transitions, 1234 flow [2022-11-16 10:54:34,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 429 transitions, 1224 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 10:54:34,296 INFO L231 Difference]: Finished difference. Result has 444 places, 429 transitions, 1196 flow [2022-11-16 10:54:34,296 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1194, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1196, PETRI_PLACES=444, PETRI_TRANSITIONS=429} [2022-11-16 10:54:34,297 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 12 predicate places. [2022-11-16 10:54:34,297 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 429 transitions, 1196 flow [2022-11-16 10:54:34,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states 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 10:54:34,297 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:34,298 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:54:34,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 10:54:34,298 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:34,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:34,298 INFO L85 PathProgramCache]: Analyzing trace with hash -340997325, now seen corresponding path program 1 times [2022-11-16 10:54:34,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:34,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407206671] [2022-11-16 10:54:34,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:34,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:34,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 10:54:34,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:34,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407206671] [2022-11-16 10:54:34,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407206671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:34,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:34,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:54:34,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755219227] [2022-11-16 10:54:34,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:34,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:54:34,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:34,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:54:34,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:54:34,914 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 472 [2022-11-16 10:54:34,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 429 transitions, 1196 flow. Second operand has 6 states, 6 states have (on average 371.6666666666667) internal successors, (2230), 6 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states 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 10:54:34,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:34,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 472 [2022-11-16 10:54:34,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:40,768 INFO L130 PetriNetUnfolder]: 9831/29703 cut-off events. [2022-11-16 10:54:40,768 INFO L131 PetriNetUnfolder]: For 3069/3199 co-relation queries the response was YES. [2022-11-16 10:54:40,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49791 conditions, 29703 events. 9831/29703 cut-off events. For 3069/3199 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 313723 event pairs, 4138 based on Foata normal form. 0/28015 useless extension candidates. Maximal degree in co-relation 49722. Up to 7102 conditions per place. [2022-11-16 10:54:40,907 INFO L137 encePairwiseOnDemand]: 465/472 looper letters, 206 selfloop transitions, 5 changer transitions 0/554 dead transitions. [2022-11-16 10:54:40,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 554 transitions, 1879 flow [2022-11-16 10:54:40,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:54:40,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:54:40,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2410 transitions. [2022-11-16 10:54:40,911 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8509887005649718 [2022-11-16 10:54:40,911 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2410 transitions. [2022-11-16 10:54:40,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2410 transitions. [2022-11-16 10:54:40,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:40,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2410 transitions. [2022-11-16 10:54:40,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 401.6666666666667) internal successors, (2410), 6 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states 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 10:54:40,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states 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 10:54:40,915 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states 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 10:54:40,915 INFO L175 Difference]: Start difference. First operand has 444 places, 429 transitions, 1196 flow. Second operand 6 states and 2410 transitions. [2022-11-16 10:54:40,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 554 transitions, 1879 flow [2022-11-16 10:54:40,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 554 transitions, 1878 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 10:54:40,940 INFO L231 Difference]: Finished difference. Result has 446 places, 427 transitions, 1201 flow [2022-11-16 10:54:40,941 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1191, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1201, PETRI_PLACES=446, PETRI_TRANSITIONS=427} [2022-11-16 10:54:40,941 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 14 predicate places. [2022-11-16 10:54:40,941 INFO L495 AbstractCegarLoop]: Abstraction has has 446 places, 427 transitions, 1201 flow [2022-11-16 10:54:40,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 371.6666666666667) internal successors, (2230), 6 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states 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 10:54:40,942 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:40,942 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] [2022-11-16 10:54:40,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 10:54:40,942 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:40,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:40,943 INFO L85 PathProgramCache]: Analyzing trace with hash 476838150, now seen corresponding path program 1 times [2022-11-16 10:54:40,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:40,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004436840] [2022-11-16 10:54:40,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:40,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:41,003 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 10:54:41,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:41,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004436840] [2022-11-16 10:54:41,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004436840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:41,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:41,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:41,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119036570] [2022-11-16 10:54:41,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:41,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:41,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:41,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:41,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:41,007 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 472 [2022-11-16 10:54:41,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 427 transitions, 1201 flow. Second operand has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states 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 10:54:41,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:41,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 472 [2022-11-16 10:54:41,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:41,319 INFO L130 PetriNetUnfolder]: 72/1576 cut-off events. [2022-11-16 10:54:41,319 INFO L131 PetriNetUnfolder]: For 304/310 co-relation queries the response was YES. [2022-11-16 10:54:41,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2138 conditions, 1576 events. 72/1576 cut-off events. For 304/310 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 8329 event pairs, 19 based on Foata normal form. 6/1514 useless extension candidates. Maximal degree in co-relation 2070. Up to 77 conditions per place. [2022-11-16 10:54:41,328 INFO L137 encePairwiseOnDemand]: 466/472 looper letters, 8 selfloop transitions, 0 changer transitions 66/426 dead transitions. [2022-11-16 10:54:41,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 426 transitions, 1231 flow [2022-11-16 10:54:41,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:41,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:41,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1330 transitions. [2022-11-16 10:54:41,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9392655367231638 [2022-11-16 10:54:41,331 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1330 transitions. [2022-11-16 10:54:41,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1330 transitions. [2022-11-16 10:54:41,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:41,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1330 transitions. [2022-11-16 10:54:41,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 443.3333333333333) internal successors, (1330), 3 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states 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 10:54:41,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:41,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:41,335 INFO L175 Difference]: Start difference. First operand has 446 places, 427 transitions, 1201 flow. Second operand 3 states and 1330 transitions. [2022-11-16 10:54:41,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 426 transitions, 1231 flow [2022-11-16 10:54:41,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 426 transitions, 1221 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 10:54:41,345 INFO L231 Difference]: Finished difference. Result has 440 places, 360 transitions, 874 flow [2022-11-16 10:54:41,345 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1185, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=440, PETRI_TRANSITIONS=360} [2022-11-16 10:54:41,346 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 8 predicate places. [2022-11-16 10:54:41,346 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 360 transitions, 874 flow [2022-11-16 10:54:41,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states 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 10:54:41,347 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:41,347 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] [2022-11-16 10:54:41,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 10:54:41,347 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:41,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:41,348 INFO L85 PathProgramCache]: Analyzing trace with hash 653880946, now seen corresponding path program 1 times [2022-11-16 10:54:41,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:41,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129585268] [2022-11-16 10:54:41,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:41,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:42,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 10:54:42,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:42,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129585268] [2022-11-16 10:54:42,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129585268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:42,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:42,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:54:42,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332742358] [2022-11-16 10:54:42,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:42,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:54:42,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:42,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:54:42,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:54:42,016 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 472 [2022-11-16 10:54:42,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 360 transitions, 874 flow. Second operand has 6 states, 6 states have (on average 371.8333333333333) internal successors, (2231), 6 states have internal predecessors, (2231), 0 states have call successors, (0), 0 states 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 10:54:42,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:42,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 472 [2022-11-16 10:54:42,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:46,791 INFO L130 PetriNetUnfolder]: 8791/26208 cut-off events. [2022-11-16 10:54:46,791 INFO L131 PetriNetUnfolder]: For 1818/1842 co-relation queries the response was YES. [2022-11-16 10:54:47,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43250 conditions, 26208 events. 8791/26208 cut-off events. For 1818/1842 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 273288 event pairs, 3596 based on Foata normal form. 0/25124 useless extension candidates. Maximal degree in co-relation 43226. Up to 6300 conditions per place. [2022-11-16 10:54:47,115 INFO L137 encePairwiseOnDemand]: 465/472 looper letters, 203 selfloop transitions, 5 changer transitions 0/490 dead transitions. [2022-11-16 10:54:47,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 490 transitions, 1562 flow [2022-11-16 10:54:47,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:54:47,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:54:47,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2412 transitions. [2022-11-16 10:54:47,118 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8516949152542372 [2022-11-16 10:54:47,118 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2412 transitions. [2022-11-16 10:54:47,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2412 transitions. [2022-11-16 10:54:47,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:47,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2412 transitions. [2022-11-16 10:54:47,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states 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 10:54:47,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states 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 10:54:47,128 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states 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 10:54:47,128 INFO L175 Difference]: Start difference. First operand has 440 places, 360 transitions, 874 flow. Second operand 6 states and 2412 transitions. [2022-11-16 10:54:47,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 490 transitions, 1562 flow [2022-11-16 10:54:47,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 490 transitions, 1484 flow, removed 14 selfloop flow, removed 23 redundant places. [2022-11-16 10:54:47,169 INFO L231 Difference]: Finished difference. Result has 371 places, 358 transitions, 802 flow [2022-11-16 10:54:47,169 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=371, PETRI_TRANSITIONS=358} [2022-11-16 10:54:47,170 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -61 predicate places. [2022-11-16 10:54:47,170 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 358 transitions, 802 flow [2022-11-16 10:54:47,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 371.8333333333333) internal successors, (2231), 6 states have internal predecessors, (2231), 0 states have call successors, (0), 0 states 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 10:54:47,171 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:47,171 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, 1, 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 10:54:47,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 10:54:47,171 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:47,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:47,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2059440729, now seen corresponding path program 1 times [2022-11-16 10:54:47,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:47,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446116909] [2022-11-16 10:54:47,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:47,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:47,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:47,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 10:54:47,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:47,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446116909] [2022-11-16 10:54:47,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446116909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:47,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:47,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:47,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291460206] [2022-11-16 10:54:47,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:47,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:47,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:47,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:47,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:47,276 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 472 [2022-11-16 10:54:47,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 358 transitions, 802 flow. Second operand has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states 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 10:54:47,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:47,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 472 [2022-11-16 10:54:47,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:47,473 INFO L130 PetriNetUnfolder]: 31/886 cut-off events. [2022-11-16 10:54:47,473 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2022-11-16 10:54:47,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 886 events. 31/886 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3551 event pairs, 4 based on Foata normal form. 0/862 useless extension candidates. Maximal degree in co-relation 1050. Up to 18 conditions per place. [2022-11-16 10:54:47,480 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 8 selfloop transitions, 2 changer transitions 0/358 dead transitions. [2022-11-16 10:54:47,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 358 transitions, 823 flow [2022-11-16 10:54:47,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:47,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:47,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1316 transitions. [2022-11-16 10:54:47,484 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9293785310734464 [2022-11-16 10:54:47,484 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1316 transitions. [2022-11-16 10:54:47,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1316 transitions. [2022-11-16 10:54:47,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:47,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1316 transitions. [2022-11-16 10:54:47,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states 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 10:54:47,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:47,489 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:47,489 INFO L175 Difference]: Start difference. First operand has 371 places, 358 transitions, 802 flow. Second operand 3 states and 1316 transitions. [2022-11-16 10:54:47,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 358 transitions, 823 flow [2022-11-16 10:54:47,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 358 transitions, 813 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 10:54:47,494 INFO L231 Difference]: Finished difference. Result has 367 places, 357 transitions, 794 flow [2022-11-16 10:54:47,495 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=794, PETRI_PLACES=367, PETRI_TRANSITIONS=357} [2022-11-16 10:54:47,495 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -65 predicate places. [2022-11-16 10:54:47,496 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 357 transitions, 794 flow [2022-11-16 10:54:47,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states 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 10:54:47,496 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:47,497 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, 1, 1, 1, 1, 1, 1, 1, 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 10:54:47,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 10:54:47,497 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-16 10:54:47,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:47,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1223463020, now seen corresponding path program 1 times [2022-11-16 10:54:47,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:47,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45927593] [2022-11-16 10:54:47,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:47,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:47,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 10:54:47,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:47,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45927593] [2022-11-16 10:54:47,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45927593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:47,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:47,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:47,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269781501] [2022-11-16 10:54:47,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:47,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:47,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:47,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:47,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:47,627 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 472 [2022-11-16 10:54:47,629 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 357 transitions, 794 flow. Second operand has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states 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 10:54:47,629 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:47,629 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 472 [2022-11-16 10:54:47,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:47,794 INFO L130 PetriNetUnfolder]: 37/752 cut-off events. [2022-11-16 10:54:47,794 INFO L131 PetriNetUnfolder]: For 29/31 co-relation queries the response was YES. [2022-11-16 10:54:47,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 752 events. 37/752 cut-off events. For 29/31 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2731 event pairs, 6 based on Foata normal form. 0/732 useless extension candidates. Maximal degree in co-relation 889. Up to 25 conditions per place. [2022-11-16 10:54:47,798 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 0 selfloop transitions, 0 changer transitions 357/357 dead transitions. [2022-11-16 10:54:47,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 357 transitions, 815 flow [2022-11-16 10:54:47,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:47,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:47,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1316 transitions. [2022-11-16 10:54:47,801 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9293785310734464 [2022-11-16 10:54:47,802 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1316 transitions. [2022-11-16 10:54:47,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1316 transitions. [2022-11-16 10:54:47,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:47,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1316 transitions. [2022-11-16 10:54:47,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states 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 10:54:47,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:47,807 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states 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 10:54:47,807 INFO L175 Difference]: Start difference. First operand has 367 places, 357 transitions, 794 flow. Second operand 3 states and 1316 transitions. [2022-11-16 10:54:47,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 357 transitions, 815 flow [2022-11-16 10:54:47,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 357 transitions, 811 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:54:47,813 INFO L231 Difference]: Finished difference. Result has 366 places, 0 transitions, 0 flow [2022-11-16 10:54:47,813 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=366, PETRI_TRANSITIONS=0} [2022-11-16 10:54:47,814 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -66 predicate places. [2022-11-16 10:54:47,814 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 0 transitions, 0 flow [2022-11-16 10:54:47,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states 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 10:54:47,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (73 of 74 remaining) [2022-11-16 10:54:47,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (72 of 74 remaining) [2022-11-16 10:54:47,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (71 of 74 remaining) [2022-11-16 10:54:47,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (70 of 74 remaining) [2022-11-16 10:54:47,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (69 of 74 remaining) [2022-11-16 10:54:47,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (68 of 74 remaining) [2022-11-16 10:54:47,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (67 of 74 remaining) [2022-11-16 10:54:47,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (66 of 74 remaining) [2022-11-16 10:54:47,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (65 of 74 remaining) [2022-11-16 10:54:47,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (64 of 74 remaining) [2022-11-16 10:54:47,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (63 of 74 remaining) [2022-11-16 10:54:47,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (62 of 74 remaining) [2022-11-16 10:54:47,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (61 of 74 remaining) [2022-11-16 10:54:47,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (60 of 74 remaining) [2022-11-16 10:54:47,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (59 of 74 remaining) [2022-11-16 10:54:47,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (58 of 74 remaining) [2022-11-16 10:54:47,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (57 of 74 remaining) [2022-11-16 10:54:47,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (56 of 74 remaining) [2022-11-16 10:54:47,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (55 of 74 remaining) [2022-11-16 10:54:47,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (54 of 74 remaining) [2022-11-16 10:54:47,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (53 of 74 remaining) [2022-11-16 10:54:47,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (52 of 74 remaining) [2022-11-16 10:54:47,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (51 of 74 remaining) [2022-11-16 10:54:47,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (50 of 74 remaining) [2022-11-16 10:54:47,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (49 of 74 remaining) [2022-11-16 10:54:47,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (48 of 74 remaining) [2022-11-16 10:54:47,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (47 of 74 remaining) [2022-11-16 10:54:47,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (46 of 74 remaining) [2022-11-16 10:54:47,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (45 of 74 remaining) [2022-11-16 10:54:47,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (44 of 74 remaining) [2022-11-16 10:54:47,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (43 of 74 remaining) [2022-11-16 10:54:47,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 74 remaining) [2022-11-16 10:54:47,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 74 remaining) [2022-11-16 10:54:47,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (40 of 74 remaining) [2022-11-16 10:54:47,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (39 of 74 remaining) [2022-11-16 10:54:47,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (38 of 74 remaining) [2022-11-16 10:54:47,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (37 of 74 remaining) [2022-11-16 10:54:47,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (36 of 74 remaining) [2022-11-16 10:54:47,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (35 of 74 remaining) [2022-11-16 10:54:47,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (34 of 74 remaining) [2022-11-16 10:54:47,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (33 of 74 remaining) [2022-11-16 10:54:47,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (32 of 74 remaining) [2022-11-16 10:54:47,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (31 of 74 remaining) [2022-11-16 10:54:47,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (30 of 74 remaining) [2022-11-16 10:54:47,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 74 remaining) [2022-11-16 10:54:47,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 74 remaining) [2022-11-16 10:54:47,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (27 of 74 remaining) [2022-11-16 10:54:47,834 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (26 of 74 remaining) [2022-11-16 10:54:47,834 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (25 of 74 remaining) [2022-11-16 10:54:47,834 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (24 of 74 remaining) [2022-11-16 10:54:47,834 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (23 of 74 remaining) [2022-11-16 10:54:47,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (22 of 74 remaining) [2022-11-16 10:54:47,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (21 of 74 remaining) [2022-11-16 10:54:47,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (20 of 74 remaining) [2022-11-16 10:54:47,835 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (19 of 74 remaining) [2022-11-16 10:54:47,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (18 of 74 remaining) [2022-11-16 10:54:47,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (17 of 74 remaining) [2022-11-16 10:54:47,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (16 of 74 remaining) [2022-11-16 10:54:47,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (15 of 74 remaining) [2022-11-16 10:54:47,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (14 of 74 remaining) [2022-11-16 10:54:47,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (13 of 74 remaining) [2022-11-16 10:54:47,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (12 of 74 remaining) [2022-11-16 10:54:47,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (11 of 74 remaining) [2022-11-16 10:54:47,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (10 of 74 remaining) [2022-11-16 10:54:47,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (9 of 74 remaining) [2022-11-16 10:54:47,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (8 of 74 remaining) [2022-11-16 10:54:47,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (7 of 74 remaining) [2022-11-16 10:54:47,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (6 of 74 remaining) [2022-11-16 10:54:47,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (5 of 74 remaining) [2022-11-16 10:54:47,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (4 of 74 remaining) [2022-11-16 10:54:47,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (3 of 74 remaining) [2022-11-16 10:54:47,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (2 of 74 remaining) [2022-11-16 10:54:47,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (1 of 74 remaining) [2022-11-16 10:54:47,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (0 of 74 remaining) [2022-11-16 10:54:47,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 10:54:47,841 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:54:47,849 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 10:54:47,849 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 10:54:47,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 10:54:47 BasicIcfg [2022-11-16 10:54:47,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 10:54:47,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 10:54:47,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 10:54:47,856 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 10:54:47,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:53:55" (3/4) ... [2022-11-16 10:54:47,859 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 10:54:47,865 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-16 10:54:47,865 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-16 10:54:47,874 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-16 10:54:47,874 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 10:54:47,875 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 10:54:47,875 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 10:54:47,934 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c18aa2-c774-46bc-bd46-6e9e831c8228/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 10:54:47,935 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 10:54:47,936 INFO L158 Benchmark]: Toolchain (without parser) took 54210.11ms. Allocated memory was 104.9MB in the beginning and 11.7GB in the end (delta: 11.6GB). Free memory was 58.9MB in the beginning and 9.5GB in the end (delta: -9.4GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2022-11-16 10:54:47,936 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 10:54:47,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.14ms. Allocated memory is still 104.9MB. Free memory was 58.6MB in the beginning and 74.6MB in the end (delta: -15.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 10:54:47,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.82ms. Allocated memory is still 104.9MB. Free memory was 74.6MB in the beginning and 71.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 10:54:47,937 INFO L158 Benchmark]: Boogie Preprocessor took 51.72ms. Allocated memory is still 104.9MB. Free memory was 70.9MB in the beginning and 68.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 10:54:47,937 INFO L158 Benchmark]: RCFGBuilder took 1184.92ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 68.0MB in the beginning and 97.5MB in the end (delta: -29.5MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2022-11-16 10:54:47,938 INFO L158 Benchmark]: TraceAbstraction took 52500.09ms. Allocated memory was 125.8MB in the beginning and 11.7GB in the end (delta: 11.5GB). Free memory was 96.8MB in the beginning and 9.5GB in the end (delta: -9.4GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2022-11-16 10:54:47,938 INFO L158 Benchmark]: Witness Printer took 79.43ms. Allocated memory is still 11.7GB. Free memory was 9.5GB in the beginning and 9.5GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 10:54:47,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.14ms. Allocated memory is still 104.9MB. Free memory was 58.6MB in the beginning and 74.6MB in the end (delta: -15.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.82ms. Allocated memory is still 104.9MB. Free memory was 74.6MB in the beginning and 71.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.72ms. Allocated memory is still 104.9MB. Free memory was 70.9MB in the beginning and 68.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1184.92ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 68.0MB in the beginning and 97.5MB in the end (delta: -29.5MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. * TraceAbstraction took 52500.09ms. Allocated memory was 125.8MB in the beginning and 11.7GB in the end (delta: 11.5GB). Free memory was 96.8MB in the beginning and 9.5GB in the end (delta: -9.4GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. * Witness Printer took 79.43ms. Allocated memory is still 11.7GB. Free memory was 9.5GB in the beginning and 9.5GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 667 locations, 74 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 52.2s, OverallIterations: 27, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 45.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1013 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1013 mSDsluCounter, 1642 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 802 mSDsCounter, 755 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3787 IncrementalHoareTripleChecker+Invalid, 4542 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 755 mSolverCounterUnsat, 840 mSDtfsCounter, 3787 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1214occurred in iteration=18, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 3421 NumberOfCodeBlocks, 3421 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3394 ConstructedInterpolants, 0 QuantifiedInterpolants, 4949 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 44 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 10:54:47,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9c18aa2-c774-46bc-bd46-6e9e831c8228/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE