./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29fee1864b0d56497c32cb33e6aaa24ed5707e21c5b89ec418c6707c5ac52336 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:47:54,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:47:54,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:47:54,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:47:54,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:47:54,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:47:54,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:47:54,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:47:54,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:47:54,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:47:54,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:47:54,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:47:54,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:47:54,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:47:54,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:47:54,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:47:54,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:47:54,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:47:54,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:47:54,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:47:54,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:47:54,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:47:54,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:47:54,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:47:54,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:47:54,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:47:54,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:47:54,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:47:54,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:47:54,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:47:54,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:47:54,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:47:54,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:47:54,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:47:54,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:47:54,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:47:54,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:47:54,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:47:54,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:47:54,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:47:54,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:47:54,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 18:47:54,275 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:47:54,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:47:54,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:47:54,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:47:54,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:47:54,278 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:47:54,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:47:54,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:47:54,279 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:47:54,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:47:54,280 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:47:54,281 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:47:54,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:47:54,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:47:54,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:47:54,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:47:54,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:47:54,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:47:54,282 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 18:47:54,282 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:47:54,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:47:54,282 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:47:54,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:47:54,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:47:54,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:47:54,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:47:54,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:47:54,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:47:54,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:47:54,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:47:54,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:47:54,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:47:54,285 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:47:54,285 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:47:54,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:47:54,285 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_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29fee1864b0d56497c32cb33e6aaa24ed5707e21c5b89ec418c6707c5ac52336 [2022-11-18 18:47:54,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:47:54,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:47:54,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:47:54,692 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:47:54,693 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:47:54,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2022-11-18 18:47:54,781 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro/data/9f6678853/24ecaabf10e4444f9ff68de8dde64185/FLAG62ce09fb1 [2022-11-18 18:47:55,298 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:47:55,298 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2022-11-18 18:47:55,306 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro/data/9f6678853/24ecaabf10e4444f9ff68de8dde64185/FLAG62ce09fb1 [2022-11-18 18:47:55,673 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro/data/9f6678853/24ecaabf10e4444f9ff68de8dde64185 [2022-11-18 18:47:55,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:47:55,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:47:55,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:47:55,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:47:55,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:47:55,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:47:55" (1/1) ... [2022-11-18 18:47:55,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ccb17dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:55, skipping insertion in model container [2022-11-18 18:47:55,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:47:55" (1/1) ... [2022-11-18 18:47:55,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:47:55,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:47:56,022 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2022-11-18 18:47:56,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:47:56,040 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:47:56,124 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2022-11-18 18:47:56,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:47:56,159 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:47:56,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:56 WrapperNode [2022-11-18 18:47:56,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:47:56,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:47:56,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:47:56,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:47:56,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:56" (1/1) ... [2022-11-18 18:47:56,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:56" (1/1) ... [2022-11-18 18:47:56,257 INFO L138 Inliner]: procedures = 28, calls = 80, calls flagged for inlining = 26, calls inlined = 32, statements flattened = 819 [2022-11-18 18:47:56,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:47:56,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:47:56,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:47:56,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:47:56,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:56" (1/1) ... [2022-11-18 18:47:56,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:56" (1/1) ... [2022-11-18 18:47:56,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:56" (1/1) ... [2022-11-18 18:47:56,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:56" (1/1) ... [2022-11-18 18:47:56,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:56" (1/1) ... [2022-11-18 18:47:56,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:56" (1/1) ... [2022-11-18 18:47:56,387 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:56" (1/1) ... [2022-11-18 18:47:56,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:56" (1/1) ... [2022-11-18 18:47:56,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:47:56,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:47:56,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:47:56,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:47:56,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:56" (1/1) ... [2022-11-18 18:47:56,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:47:56,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:47:56,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:47:56,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c323e9df-75cb-462a-8d35-77c77e7eb14d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:47:56,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:47:56,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:47:56,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:47:56,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:47:56,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:47:56,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:47:56,507 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 18:47:56,507 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 18:47:56,507 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 18:47:56,507 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 18:47:56,507 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 18:47:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 18:47:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:47:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 18:47:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 18:47:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:47:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:47:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:47:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:47:56,511 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:47:56,715 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:47:56,733 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:47:58,166 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:47:59,292 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:47:59,292 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-18 18:47:59,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:47:59 BoogieIcfgContainer [2022-11-18 18:47:59,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:47:59,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:47:59,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:47:59,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:47:59,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:47:55" (1/3) ... [2022-11-18 18:47:59,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14772bcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:47:59, skipping insertion in model container [2022-11-18 18:47:59,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:56" (2/3) ... [2022-11-18 18:47:59,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14772bcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:47:59, skipping insertion in model container [2022-11-18 18:47:59,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:47:59" (3/3) ... [2022-11-18 18:47:59,304 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons-eq.wvr.c [2022-11-18 18:47:59,314 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:47:59,325 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:47:59,326 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 130 error locations. [2022-11-18 18:47:59,326 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:47:59,753 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 18:47:59,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 785 places, 816 transitions, 1656 flow [2022-11-18 18:48:00,295 INFO L130 PetriNetUnfolder]: 41/813 cut-off events. [2022-11-18 18:48:00,295 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 18:48:00,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 813 events. 41/813 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1537 event pairs, 0 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 565. Up to 2 conditions per place. [2022-11-18 18:48:00,310 INFO L82 GeneralOperation]: Start removeDead. Operand has 785 places, 816 transitions, 1656 flow [2022-11-18 18:48:00,383 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 763 places, 793 transitions, 1604 flow [2022-11-18 18:48:00,395 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:48:00,412 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;@59e792a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:48:00,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 225 error locations. [2022-11-18 18:48:00,421 INFO L130 PetriNetUnfolder]: 0/37 cut-off events. [2022-11-18 18:48:00,421 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:48:00,422 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:00,423 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:00,424 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:00,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:00,431 INFO L85 PathProgramCache]: Analyzing trace with hash -921774314, now seen corresponding path program 1 times [2022-11-18 18:48:00,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:00,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85552599] [2022-11-18 18:48:00,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:00,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:00,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:00,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:00,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85552599] [2022-11-18 18:48:00,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85552599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:00,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:00,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:00,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289142680] [2022-11-18 18:48:00,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:00,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:00,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:00,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:00,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:00,838 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 720 out of 816 [2022-11-18 18:48:00,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 763 places, 793 transitions, 1604 flow. Second operand has 3 states, 3 states have (on average 721.3333333333334) internal successors, (2164), 3 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:00,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:00,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 720 of 816 [2022-11-18 18:48:00,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:01,542 INFO L130 PetriNetUnfolder]: 38/845 cut-off events. [2022-11-18 18:48:01,543 INFO L131 PetriNetUnfolder]: For 24/29 co-relation queries the response was YES. [2022-11-18 18:48:01,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 921 conditions, 845 events. 38/845 cut-off events. For 24/29 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1981 event pairs, 12 based on Foata normal form. 52/756 useless extension candidates. Maximal degree in co-relation 571. Up to 47 conditions per place. [2022-11-18 18:48:01,558 INFO L137 encePairwiseOnDemand]: 736/816 looper letters, 14 selfloop transitions, 2 changer transitions 12/715 dead transitions. [2022-11-18 18:48:01,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 713 places, 715 transitions, 1480 flow [2022-11-18 18:48:01,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:01,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:01,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2254 transitions. [2022-11-18 18:48:01,591 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.920751633986928 [2022-11-18 18:48:01,592 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2254 transitions. [2022-11-18 18:48:01,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2254 transitions. [2022-11-18 18:48:01,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:01,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2254 transitions. [2022-11-18 18:48:01,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 751.3333333333334) internal successors, (2254), 3 states have internal predecessors, (2254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:01,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:01,676 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:01,679 INFO L175 Difference]: Start difference. First operand has 763 places, 793 transitions, 1604 flow. Second operand 3 states and 2254 transitions. [2022-11-18 18:48:01,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 713 places, 715 transitions, 1480 flow [2022-11-18 18:48:01,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 707 places, 715 transitions, 1468 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 18:48:01,714 INFO L231 Difference]: Finished difference. Result has 707 places, 703 transitions, 1416 flow [2022-11-18 18:48:01,718 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1436, PETRI_DIFFERENCE_MINUEND_PLACES=705, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=715, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=713, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1416, PETRI_PLACES=707, PETRI_TRANSITIONS=703} [2022-11-18 18:48:01,722 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -56 predicate places. [2022-11-18 18:48:01,723 INFO L495 AbstractCegarLoop]: Abstraction has has 707 places, 703 transitions, 1416 flow [2022-11-18 18:48:01,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 721.3333333333334) internal successors, (2164), 3 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:01,725 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:01,725 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:01,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:48:01,726 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:01,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:01,727 INFO L85 PathProgramCache]: Analyzing trace with hash -186580960, now seen corresponding path program 1 times [2022-11-18 18:48:01,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:01,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278534822] [2022-11-18 18:48:01,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:01,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:01,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:01,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:01,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278534822] [2022-11-18 18:48:01,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278534822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:01,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:01,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:01,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238465976] [2022-11-18 18:48:01,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:01,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:01,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:01,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:01,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:01,889 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 705 out of 816 [2022-11-18 18:48:01,893 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 707 places, 703 transitions, 1416 flow. Second operand has 3 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:01,893 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:01,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 705 of 816 [2022-11-18 18:48:01,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:02,537 INFO L130 PetriNetUnfolder]: 162/1148 cut-off events. [2022-11-18 18:48:02,538 INFO L131 PetriNetUnfolder]: For 5/17 co-relation queries the response was YES. [2022-11-18 18:48:02,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1469 conditions, 1148 events. 162/1148 cut-off events. For 5/17 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4507 event pairs, 108 based on Foata normal form. 0/975 useless extension candidates. Maximal degree in co-relation 1423. Up to 258 conditions per place. [2022-11-18 18:48:02,562 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 29 selfloop transitions, 2 changer transitions 0/702 dead transitions. [2022-11-18 18:48:02,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 696 places, 702 transitions, 1476 flow [2022-11-18 18:48:02,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:02,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:02,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2147 transitions. [2022-11-18 18:48:02,568 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8770424836601307 [2022-11-18 18:48:02,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2147 transitions. [2022-11-18 18:48:02,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2147 transitions. [2022-11-18 18:48:02,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:02,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2147 transitions. [2022-11-18 18:48:02,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 715.6666666666666) internal successors, (2147), 3 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:02,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:02,583 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:02,583 INFO L175 Difference]: Start difference. First operand has 707 places, 703 transitions, 1416 flow. Second operand 3 states and 2147 transitions. [2022-11-18 18:48:02,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 696 places, 702 transitions, 1476 flow [2022-11-18 18:48:02,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 694 places, 702 transitions, 1472 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:48:02,597 INFO L231 Difference]: Finished difference. Result has 694 places, 702 transitions, 1414 flow [2022-11-18 18:48:02,598 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1410, PETRI_DIFFERENCE_MINUEND_PLACES=692, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=702, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=700, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1414, PETRI_PLACES=694, PETRI_TRANSITIONS=702} [2022-11-18 18:48:02,599 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -69 predicate places. [2022-11-18 18:48:02,599 INFO L495 AbstractCegarLoop]: Abstraction has has 694 places, 702 transitions, 1414 flow [2022-11-18 18:48:02,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:02,601 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:02,601 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] [2022-11-18 18:48:02,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:48:02,602 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:02,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:02,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1582248289, now seen corresponding path program 1 times [2022-11-18 18:48:02,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:02,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248046991] [2022-11-18 18:48:02,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:02,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:02,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:02,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:02,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248046991] [2022-11-18 18:48:02,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248046991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:02,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:02,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:02,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629358676] [2022-11-18 18:48:02,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:02,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:02,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:02,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:02,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:02,671 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 708 out of 816 [2022-11-18 18:48:02,675 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 694 places, 702 transitions, 1414 flow. Second operand has 3 states, 3 states have (on average 709.3333333333334) internal successors, (2128), 3 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:02,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:02,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 708 of 816 [2022-11-18 18:48:02,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:03,212 INFO L130 PetriNetUnfolder]: 132/1088 cut-off events. [2022-11-18 18:48:03,212 INFO L131 PetriNetUnfolder]: For 6/16 co-relation queries the response was YES. [2022-11-18 18:48:03,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 1088 events. 132/1088 cut-off events. For 6/16 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4032 event pairs, 60 based on Foata normal form. 0/939 useless extension candidates. Maximal degree in co-relation 1288. Up to 151 conditions per place. [2022-11-18 18:48:03,242 INFO L137 encePairwiseOnDemand]: 809/816 looper letters, 26 selfloop transitions, 3 changer transitions 0/703 dead transitions. [2022-11-18 18:48:03,244 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 692 places, 703 transitions, 1476 flow [2022-11-18 18:48:03,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:03,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:03,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2157 transitions. [2022-11-18 18:48:03,250 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8811274509803921 [2022-11-18 18:48:03,250 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2157 transitions. [2022-11-18 18:48:03,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2157 transitions. [2022-11-18 18:48:03,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:03,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2157 transitions. [2022-11-18 18:48:03,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 719.0) internal successors, (2157), 3 states have internal predecessors, (2157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:03,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:03,264 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:03,265 INFO L175 Difference]: Start difference. First operand has 694 places, 702 transitions, 1414 flow. Second operand 3 states and 2157 transitions. [2022-11-18 18:48:03,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 692 places, 703 transitions, 1476 flow [2022-11-18 18:48:03,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 690 places, 703 transitions, 1472 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:48:03,284 INFO L231 Difference]: Finished difference. Result has 690 places, 698 transitions, 1408 flow [2022-11-18 18:48:03,285 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1402, PETRI_DIFFERENCE_MINUEND_PLACES=688, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=698, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1408, PETRI_PLACES=690, PETRI_TRANSITIONS=698} [2022-11-18 18:48:03,288 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -73 predicate places. [2022-11-18 18:48:03,288 INFO L495 AbstractCegarLoop]: Abstraction has has 690 places, 698 transitions, 1408 flow [2022-11-18 18:48:03,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 709.3333333333334) internal successors, (2128), 3 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:03,290 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:03,290 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:03,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:48:03,291 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:03,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:03,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1376391631, now seen corresponding path program 1 times [2022-11-18 18:48:03,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:03,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241134042] [2022-11-18 18:48:03,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:03,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:03,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:03,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:03,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241134042] [2022-11-18 18:48:03,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241134042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:03,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:03,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:03,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67097727] [2022-11-18 18:48:03,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:03,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:03,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:03,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:03,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:03,405 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 690 out of 816 [2022-11-18 18:48:03,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 690 places, 698 transitions, 1408 flow. Second operand has 3 states, 3 states have (on average 691.3333333333334) internal successors, (2074), 3 states have internal predecessors, (2074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:03,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:03,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 690 of 816 [2022-11-18 18:48:03,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:04,953 INFO L130 PetriNetUnfolder]: 645/2945 cut-off events. [2022-11-18 18:48:04,954 INFO L131 PetriNetUnfolder]: For 222/227 co-relation queries the response was YES. [2022-11-18 18:48:04,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3977 conditions, 2945 events. 645/2945 cut-off events. For 222/227 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 18181 event pairs, 402 based on Foata normal form. 0/2460 useless extension candidates. Maximal degree in co-relation 3609. Up to 917 conditions per place. [2022-11-18 18:48:04,989 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 44 selfloop transitions, 2 changer transitions 0/697 dead transitions. [2022-11-18 18:48:04,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 691 places, 697 transitions, 1498 flow [2022-11-18 18:48:04,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:04,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:04,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2117 transitions. [2022-11-18 18:48:04,995 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8647875816993464 [2022-11-18 18:48:04,995 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2117 transitions. [2022-11-18 18:48:04,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2117 transitions. [2022-11-18 18:48:04,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:04,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2117 transitions. [2022-11-18 18:48:05,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 705.6666666666666) internal successors, (2117), 3 states have internal predecessors, (2117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:05,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:05,011 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:05,011 INFO L175 Difference]: Start difference. First operand has 690 places, 698 transitions, 1408 flow. Second operand 3 states and 2117 transitions. [2022-11-18 18:48:05,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 691 places, 697 transitions, 1498 flow [2022-11-18 18:48:05,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 689 places, 697 transitions, 1492 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:48:05,025 INFO L231 Difference]: Finished difference. Result has 689 places, 697 transitions, 1404 flow [2022-11-18 18:48:05,026 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1400, PETRI_DIFFERENCE_MINUEND_PLACES=687, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1404, PETRI_PLACES=689, PETRI_TRANSITIONS=697} [2022-11-18 18:48:05,027 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -74 predicate places. [2022-11-18 18:48:05,027 INFO L495 AbstractCegarLoop]: Abstraction has has 689 places, 697 transitions, 1404 flow [2022-11-18 18:48:05,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 691.3333333333334) internal successors, (2074), 3 states have internal predecessors, (2074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:05,029 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:05,029 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] [2022-11-18 18:48:05,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:48:05,030 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:05,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:05,031 INFO L85 PathProgramCache]: Analyzing trace with hash 2040804952, now seen corresponding path program 1 times [2022-11-18 18:48:05,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:05,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522636799] [2022-11-18 18:48:05,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:05,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:05,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:05,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:05,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522636799] [2022-11-18 18:48:05,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522636799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:05,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:05,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:05,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863557902] [2022-11-18 18:48:05,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:05,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:05,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:05,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:05,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:05,085 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 714 out of 816 [2022-11-18 18:48:05,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 689 places, 697 transitions, 1404 flow. Second operand has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:05,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:05,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 714 of 816 [2022-11-18 18:48:05,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:05,471 INFO L130 PetriNetUnfolder]: 38/820 cut-off events. [2022-11-18 18:48:05,471 INFO L131 PetriNetUnfolder]: For 5/10 co-relation queries the response was YES. [2022-11-18 18:48:05,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 888 conditions, 820 events. 38/820 cut-off events. For 5/10 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1890 event pairs, 12 based on Foata normal form. 0/704 useless extension candidates. Maximal degree in co-relation 828. Up to 53 conditions per place. [2022-11-18 18:48:05,483 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 20 selfloop transitions, 2 changer transitions 0/696 dead transitions. [2022-11-18 18:48:05,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 690 places, 696 transitions, 1446 flow [2022-11-18 18:48:05,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:05,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:05,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2165 transitions. [2022-11-18 18:48:05,489 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8843954248366013 [2022-11-18 18:48:05,489 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2165 transitions. [2022-11-18 18:48:05,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2165 transitions. [2022-11-18 18:48:05,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:05,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2165 transitions. [2022-11-18 18:48:05,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 721.6666666666666) internal successors, (2165), 3 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:05,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:05,505 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:05,506 INFO L175 Difference]: Start difference. First operand has 689 places, 697 transitions, 1404 flow. Second operand 3 states and 2165 transitions. [2022-11-18 18:48:05,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 690 places, 696 transitions, 1446 flow [2022-11-18 18:48:05,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 688 places, 696 transitions, 1442 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:48:05,519 INFO L231 Difference]: Finished difference. Result has 688 places, 696 transitions, 1402 flow [2022-11-18 18:48:05,521 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1398, PETRI_DIFFERENCE_MINUEND_PLACES=686, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=696, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=694, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1402, PETRI_PLACES=688, PETRI_TRANSITIONS=696} [2022-11-18 18:48:05,522 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -75 predicate places. [2022-11-18 18:48:05,522 INFO L495 AbstractCegarLoop]: Abstraction has has 688 places, 696 transitions, 1402 flow [2022-11-18 18:48:05,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:05,524 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:05,524 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] [2022-11-18 18:48:05,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:48:05,524 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:05,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:05,525 INFO L85 PathProgramCache]: Analyzing trace with hash 159796023, now seen corresponding path program 1 times [2022-11-18 18:48:05,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:05,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497481928] [2022-11-18 18:48:05,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:05,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:05,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:05,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:05,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497481928] [2022-11-18 18:48:05,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497481928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:05,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:05,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:05,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881125022] [2022-11-18 18:48:05,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:05,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:05,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:05,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:05,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:05,576 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 717 out of 816 [2022-11-18 18:48:05,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 688 places, 696 transitions, 1402 flow. Second operand has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:05,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:05,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 717 of 816 [2022-11-18 18:48:05,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:06,057 INFO L130 PetriNetUnfolder]: 56/1272 cut-off events. [2022-11-18 18:48:06,057 INFO L131 PetriNetUnfolder]: For 9/13 co-relation queries the response was YES. [2022-11-18 18:48:06,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1352 conditions, 1272 events. 56/1272 cut-off events. For 9/13 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4612 event pairs, 10 based on Foata normal form. 0/1064 useless extension candidates. Maximal degree in co-relation 1284. Up to 34 conditions per place. [2022-11-18 18:48:06,075 INFO L137 encePairwiseOnDemand]: 811/816 looper letters, 22 selfloop transitions, 3 changer transitions 0/702 dead transitions. [2022-11-18 18:48:06,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 688 places, 702 transitions, 1468 flow [2022-11-18 18:48:06,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:06,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:06,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2178 transitions. [2022-11-18 18:48:06,081 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8897058823529411 [2022-11-18 18:48:06,081 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2178 transitions. [2022-11-18 18:48:06,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2178 transitions. [2022-11-18 18:48:06,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:06,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2178 transitions. [2022-11-18 18:48:06,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 726.0) internal successors, (2178), 3 states have internal predecessors, (2178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:06,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:06,094 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:06,094 INFO L175 Difference]: Start difference. First operand has 688 places, 696 transitions, 1402 flow. Second operand 3 states and 2178 transitions. [2022-11-18 18:48:06,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 688 places, 702 transitions, 1468 flow [2022-11-18 18:48:06,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 686 places, 702 transitions, 1464 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:48:06,106 INFO L231 Difference]: Finished difference. Result has 688 places, 696 transitions, 1414 flow [2022-11-18 18:48:06,107 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1394, PETRI_DIFFERENCE_MINUEND_PLACES=684, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1414, PETRI_PLACES=688, PETRI_TRANSITIONS=696} [2022-11-18 18:48:06,108 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -75 predicate places. [2022-11-18 18:48:06,108 INFO L495 AbstractCegarLoop]: Abstraction has has 688 places, 696 transitions, 1414 flow [2022-11-18 18:48:06,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:06,109 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:06,109 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] [2022-11-18 18:48:06,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:48:06,110 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:06,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:06,110 INFO L85 PathProgramCache]: Analyzing trace with hash -29063476, now seen corresponding path program 1 times [2022-11-18 18:48:06,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:06,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920203238] [2022-11-18 18:48:06,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:06,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:06,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:06,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:06,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920203238] [2022-11-18 18:48:06,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920203238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:06,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:06,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:06,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26180329] [2022-11-18 18:48:06,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:06,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:06,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:06,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:06,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:06,158 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 705 out of 816 [2022-11-18 18:48:06,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 688 places, 696 transitions, 1414 flow. Second operand has 3 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:06,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:06,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 705 of 816 [2022-11-18 18:48:06,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:07,415 INFO L130 PetriNetUnfolder]: 424/3632 cut-off events. [2022-11-18 18:48:07,416 INFO L131 PetriNetUnfolder]: For 246/274 co-relation queries the response was YES. [2022-11-18 18:48:07,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4319 conditions, 3632 events. 424/3632 cut-off events. For 246/274 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 25610 event pairs, 245 based on Foata normal form. 0/2939 useless extension candidates. Maximal degree in co-relation 2258. Up to 543 conditions per place. [2022-11-18 18:48:07,453 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 29 selfloop transitions, 2 changer transitions 0/695 dead transitions. [2022-11-18 18:48:07,453 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 689 places, 695 transitions, 1474 flow [2022-11-18 18:48:07,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:07,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:07,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2146 transitions. [2022-11-18 18:48:07,459 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8766339869281046 [2022-11-18 18:48:07,460 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2146 transitions. [2022-11-18 18:48:07,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2146 transitions. [2022-11-18 18:48:07,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:07,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2146 transitions. [2022-11-18 18:48:07,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:07,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:07,535 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:07,535 INFO L175 Difference]: Start difference. First operand has 688 places, 696 transitions, 1414 flow. Second operand 3 states and 2146 transitions. [2022-11-18 18:48:07,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 689 places, 695 transitions, 1474 flow [2022-11-18 18:48:07,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 687 places, 695 transitions, 1468 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:48:07,547 INFO L231 Difference]: Finished difference. Result has 687 places, 695 transitions, 1410 flow [2022-11-18 18:48:07,549 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1406, PETRI_DIFFERENCE_MINUEND_PLACES=685, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=695, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=693, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1410, PETRI_PLACES=687, PETRI_TRANSITIONS=695} [2022-11-18 18:48:07,549 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -76 predicate places. [2022-11-18 18:48:07,550 INFO L495 AbstractCegarLoop]: Abstraction has has 687 places, 695 transitions, 1410 flow [2022-11-18 18:48:07,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:07,551 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:07,551 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] [2022-11-18 18:48:07,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:48:07,551 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:07,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:07,552 INFO L85 PathProgramCache]: Analyzing trace with hash -324754665, now seen corresponding path program 1 times [2022-11-18 18:48:07,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:07,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198689812] [2022-11-18 18:48:07,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:07,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:07,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:07,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:07,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198689812] [2022-11-18 18:48:07,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198689812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:07,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:07,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:07,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90082784] [2022-11-18 18:48:07,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:07,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:07,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:07,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:07,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:07,604 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 717 out of 816 [2022-11-18 18:48:07,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 687 places, 695 transitions, 1410 flow. Second operand has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:07,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:07,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 717 of 816 [2022-11-18 18:48:07,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:07,989 INFO L130 PetriNetUnfolder]: 46/860 cut-off events. [2022-11-18 18:48:07,989 INFO L131 PetriNetUnfolder]: For 18/28 co-relation queries the response was YES. [2022-11-18 18:48:07,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 860 events. 46/860 cut-off events. For 18/28 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2268 event pairs, 17 based on Foata normal form. 0/737 useless extension candidates. Maximal degree in co-relation 879. Up to 64 conditions per place. [2022-11-18 18:48:08,001 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 18 selfloop transitions, 2 changer transitions 0/694 dead transitions. [2022-11-18 18:48:08,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 688 places, 694 transitions, 1448 flow [2022-11-18 18:48:08,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:08,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:08,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2171 transitions. [2022-11-18 18:48:08,007 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8868464052287581 [2022-11-18 18:48:08,007 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2171 transitions. [2022-11-18 18:48:08,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2171 transitions. [2022-11-18 18:48:08,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:08,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2171 transitions. [2022-11-18 18:48:08,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 723.6666666666666) internal successors, (2171), 3 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:08,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:08,021 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:08,021 INFO L175 Difference]: Start difference. First operand has 687 places, 695 transitions, 1410 flow. Second operand 3 states and 2171 transitions. [2022-11-18 18:48:08,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 688 places, 694 transitions, 1448 flow [2022-11-18 18:48:08,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 686 places, 694 transitions, 1444 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:48:08,036 INFO L231 Difference]: Finished difference. Result has 686 places, 694 transitions, 1408 flow [2022-11-18 18:48:08,037 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1404, PETRI_DIFFERENCE_MINUEND_PLACES=684, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=692, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1408, PETRI_PLACES=686, PETRI_TRANSITIONS=694} [2022-11-18 18:48:08,038 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -77 predicate places. [2022-11-18 18:48:08,038 INFO L495 AbstractCegarLoop]: Abstraction has has 686 places, 694 transitions, 1408 flow [2022-11-18 18:48:08,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:08,039 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:08,039 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:08,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:48:08,040 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:08,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:08,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1234180440, now seen corresponding path program 1 times [2022-11-18 18:48:08,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:08,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091677142] [2022-11-18 18:48:08,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:08,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:08,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:08,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091677142] [2022-11-18 18:48:08,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091677142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:08,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:08,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:08,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713293608] [2022-11-18 18:48:08,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:08,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:08,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:08,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:08,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:08,092 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 714 out of 816 [2022-11-18 18:48:08,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 686 places, 694 transitions, 1408 flow. Second operand has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:08,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:08,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 714 of 816 [2022-11-18 18:48:08,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:09,259 INFO L130 PetriNetUnfolder]: 164/3054 cut-off events. [2022-11-18 18:48:09,259 INFO L131 PetriNetUnfolder]: For 54/64 co-relation queries the response was YES. [2022-11-18 18:48:09,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3287 conditions, 3054 events. 164/3054 cut-off events. For 54/64 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 20025 event pairs, 74 based on Foata normal form. 0/2474 useless extension candidates. Maximal degree in co-relation 3204. Up to 184 conditions per place. [2022-11-18 18:48:09,291 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 21 selfloop transitions, 2 changer transitions 0/693 dead transitions. [2022-11-18 18:48:09,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 693 transitions, 1452 flow [2022-11-18 18:48:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:09,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:09,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2165 transitions. [2022-11-18 18:48:09,296 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8843954248366013 [2022-11-18 18:48:09,297 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2165 transitions. [2022-11-18 18:48:09,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2165 transitions. [2022-11-18 18:48:09,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:09,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2165 transitions. [2022-11-18 18:48:09,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 721.6666666666666) internal successors, (2165), 3 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:09,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:09,308 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:09,308 INFO L175 Difference]: Start difference. First operand has 686 places, 694 transitions, 1408 flow. Second operand 3 states and 2165 transitions. [2022-11-18 18:48:09,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 687 places, 693 transitions, 1452 flow [2022-11-18 18:48:09,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 685 places, 693 transitions, 1448 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:48:09,320 INFO L231 Difference]: Finished difference. Result has 685 places, 693 transitions, 1406 flow [2022-11-18 18:48:09,321 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1402, PETRI_DIFFERENCE_MINUEND_PLACES=683, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1406, PETRI_PLACES=685, PETRI_TRANSITIONS=693} [2022-11-18 18:48:09,322 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -78 predicate places. [2022-11-18 18:48:09,322 INFO L495 AbstractCegarLoop]: Abstraction has has 685 places, 693 transitions, 1406 flow [2022-11-18 18:48:09,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:09,323 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:09,323 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] [2022-11-18 18:48:09,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:48:09,324 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:09,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:09,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1358507234, now seen corresponding path program 1 times [2022-11-18 18:48:09,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:09,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418013161] [2022-11-18 18:48:09,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:09,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:09,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:09,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:09,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418013161] [2022-11-18 18:48:09,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418013161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:09,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:09,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:09,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850224989] [2022-11-18 18:48:09,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:09,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:09,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:09,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:09,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:09,397 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 708 out of 816 [2022-11-18 18:48:09,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 685 places, 693 transitions, 1406 flow. Second operand has 3 states, 3 states have (on average 709.3333333333334) internal successors, (2128), 3 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:09,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:09,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 708 of 816 [2022-11-18 18:48:09,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:10,528 INFO L130 PetriNetUnfolder]: 276/2680 cut-off events. [2022-11-18 18:48:10,529 INFO L131 PetriNetUnfolder]: For 84/94 co-relation queries the response was YES. [2022-11-18 18:48:10,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3150 conditions, 2680 events. 276/2680 cut-off events. For 84/94 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 17900 event pairs, 170 based on Foata normal form. 0/2171 useless extension candidates. Maximal degree in co-relation 3060. Up to 376 conditions per place. [2022-11-18 18:48:10,562 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 27 selfloop transitions, 2 changer transitions 0/692 dead transitions. [2022-11-18 18:48:10,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 686 places, 692 transitions, 1462 flow [2022-11-18 18:48:10,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:10,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:10,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2153 transitions. [2022-11-18 18:48:10,566 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8794934640522876 [2022-11-18 18:48:10,567 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2153 transitions. [2022-11-18 18:48:10,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2153 transitions. [2022-11-18 18:48:10,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:10,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2153 transitions. [2022-11-18 18:48:10,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 717.6666666666666) internal successors, (2153), 3 states have internal predecessors, (2153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:10,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:10,578 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:10,578 INFO L175 Difference]: Start difference. First operand has 685 places, 693 transitions, 1406 flow. Second operand 3 states and 2153 transitions. [2022-11-18 18:48:10,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 686 places, 692 transitions, 1462 flow [2022-11-18 18:48:10,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 684 places, 692 transitions, 1458 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:48:10,589 INFO L231 Difference]: Finished difference. Result has 684 places, 692 transitions, 1404 flow [2022-11-18 18:48:10,590 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1400, PETRI_DIFFERENCE_MINUEND_PLACES=682, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=692, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=690, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1404, PETRI_PLACES=684, PETRI_TRANSITIONS=692} [2022-11-18 18:48:10,591 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -79 predicate places. [2022-11-18 18:48:10,591 INFO L495 AbstractCegarLoop]: Abstraction has has 684 places, 692 transitions, 1404 flow [2022-11-18 18:48:10,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 709.3333333333334) internal successors, (2128), 3 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:10,592 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:10,592 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] [2022-11-18 18:48:10,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:48:10,593 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:10,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:10,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1131958482, now seen corresponding path program 1 times [2022-11-18 18:48:10,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:10,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823261854] [2022-11-18 18:48:10,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:10,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:10,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:10,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:10,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823261854] [2022-11-18 18:48:10,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823261854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:10,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:10,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:10,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233089052] [2022-11-18 18:48:10,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:10,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:10,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:10,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:10,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:10,688 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 705 out of 816 [2022-11-18 18:48:10,691 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 684 places, 692 transitions, 1404 flow. Second operand has 3 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:10,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:10,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 705 of 816 [2022-11-18 18:48:10,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:11,946 INFO L130 PetriNetUnfolder]: 177/3325 cut-off events. [2022-11-18 18:48:11,946 INFO L131 PetriNetUnfolder]: For 54/64 co-relation queries the response was YES. [2022-11-18 18:48:11,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3567 conditions, 3325 events. 177/3325 cut-off events. For 54/64 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 22626 event pairs, 74 based on Foata normal form. 0/2686 useless extension candidates. Maximal degree in co-relation 3470. Up to 193 conditions per place. [2022-11-18 18:48:11,987 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 30 selfloop transitions, 2 changer transitions 0/691 dead transitions. [2022-11-18 18:48:11,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 685 places, 691 transitions, 1466 flow [2022-11-18 18:48:11,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:11,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:11,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2147 transitions. [2022-11-18 18:48:11,995 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8770424836601307 [2022-11-18 18:48:11,996 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2147 transitions. [2022-11-18 18:48:11,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2147 transitions. [2022-11-18 18:48:11,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:11,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2147 transitions. [2022-11-18 18:48:12,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 715.6666666666666) internal successors, (2147), 3 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:12,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:12,012 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:12,012 INFO L175 Difference]: Start difference. First operand has 684 places, 692 transitions, 1404 flow. Second operand 3 states and 2147 transitions. [2022-11-18 18:48:12,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 685 places, 691 transitions, 1466 flow [2022-11-18 18:48:12,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 683 places, 691 transitions, 1462 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:48:12,029 INFO L231 Difference]: Finished difference. Result has 683 places, 691 transitions, 1402 flow [2022-11-18 18:48:12,030 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1398, PETRI_DIFFERENCE_MINUEND_PLACES=681, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=689, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1402, PETRI_PLACES=683, PETRI_TRANSITIONS=691} [2022-11-18 18:48:12,031 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -80 predicate places. [2022-11-18 18:48:12,031 INFO L495 AbstractCegarLoop]: Abstraction has has 683 places, 691 transitions, 1402 flow [2022-11-18 18:48:12,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:12,033 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:12,033 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] [2022-11-18 18:48:12,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:48:12,033 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:12,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:12,034 INFO L85 PathProgramCache]: Analyzing trace with hash 222068022, now seen corresponding path program 1 times [2022-11-18 18:48:12,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:12,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731104313] [2022-11-18 18:48:12,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:12,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:12,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:12,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731104313] [2022-11-18 18:48:12,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731104313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:12,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:12,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:12,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129502724] [2022-11-18 18:48:12,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:12,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:12,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:12,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:12,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:12,099 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 714 out of 816 [2022-11-18 18:48:12,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 683 places, 691 transitions, 1402 flow. Second operand has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:12,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:12,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 714 of 816 [2022-11-18 18:48:12,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:13,082 INFO L130 PetriNetUnfolder]: 151/2518 cut-off events. [2022-11-18 18:48:13,082 INFO L131 PetriNetUnfolder]: For 54/64 co-relation queries the response was YES. [2022-11-18 18:48:13,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2751 conditions, 2518 events. 151/2518 cut-off events. For 54/64 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 14854 event pairs, 74 based on Foata normal form. 0/2056 useless extension candidates. Maximal degree in co-relation 2647. Up to 184 conditions per place. [2022-11-18 18:48:13,110 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 21 selfloop transitions, 2 changer transitions 0/690 dead transitions. [2022-11-18 18:48:13,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 684 places, 690 transitions, 1446 flow [2022-11-18 18:48:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:13,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:13,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2165 transitions. [2022-11-18 18:48:13,117 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8843954248366013 [2022-11-18 18:48:13,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2165 transitions. [2022-11-18 18:48:13,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2165 transitions. [2022-11-18 18:48:13,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:13,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2165 transitions. [2022-11-18 18:48:13,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 721.6666666666666) internal successors, (2165), 3 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:13,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:13,132 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:13,133 INFO L175 Difference]: Start difference. First operand has 683 places, 691 transitions, 1402 flow. Second operand 3 states and 2165 transitions. [2022-11-18 18:48:13,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 684 places, 690 transitions, 1446 flow [2022-11-18 18:48:13,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 682 places, 690 transitions, 1442 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:48:13,148 INFO L231 Difference]: Finished difference. Result has 682 places, 690 transitions, 1400 flow [2022-11-18 18:48:13,149 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1396, PETRI_DIFFERENCE_MINUEND_PLACES=680, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=688, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1400, PETRI_PLACES=682, PETRI_TRANSITIONS=690} [2022-11-18 18:48:13,150 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -81 predicate places. [2022-11-18 18:48:13,150 INFO L495 AbstractCegarLoop]: Abstraction has has 682 places, 690 transitions, 1400 flow [2022-11-18 18:48:13,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:13,151 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:13,152 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] [2022-11-18 18:48:13,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 18:48:13,152 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:13,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:13,153 INFO L85 PathProgramCache]: Analyzing trace with hash -140088498, now seen corresponding path program 1 times [2022-11-18 18:48:13,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:13,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382057998] [2022-11-18 18:48:13,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:13,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:13,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:13,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382057998] [2022-11-18 18:48:13,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382057998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:13,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:13,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:13,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324340836] [2022-11-18 18:48:13,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:13,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:13,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:13,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:13,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:13,207 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 717 out of 816 [2022-11-18 18:48:13,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 682 places, 690 transitions, 1400 flow. Second operand has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:13,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:13,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 717 of 816 [2022-11-18 18:48:13,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:13,844 INFO L130 PetriNetUnfolder]: 138/3010 cut-off events. [2022-11-18 18:48:13,844 INFO L131 PetriNetUnfolder]: For 42/52 co-relation queries the response was YES. [2022-11-18 18:48:13,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3193 conditions, 3010 events. 138/3010 cut-off events. For 42/52 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 19744 event pairs, 55 based on Foata normal form. 0/2454 useless extension candidates. Maximal degree in co-relation 3081. Up to 139 conditions per place. [2022-11-18 18:48:13,871 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 17 selfloop transitions, 1 changer transitions 0/688 dead transitions. [2022-11-18 18:48:13,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 682 places, 688 transitions, 1432 flow [2022-11-18 18:48:13,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:13,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:13,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2170 transitions. [2022-11-18 18:48:13,877 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.886437908496732 [2022-11-18 18:48:13,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2170 transitions. [2022-11-18 18:48:13,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2170 transitions. [2022-11-18 18:48:13,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:13,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2170 transitions. [2022-11-18 18:48:13,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 723.3333333333334) internal successors, (2170), 3 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:13,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:13,890 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:13,890 INFO L175 Difference]: Start difference. First operand has 682 places, 690 transitions, 1400 flow. Second operand 3 states and 2170 transitions. [2022-11-18 18:48:13,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 682 places, 688 transitions, 1432 flow [2022-11-18 18:48:13,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 680 places, 688 transitions, 1428 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:48:13,903 INFO L231 Difference]: Finished difference. Result has 680 places, 688 transitions, 1394 flow [2022-11-18 18:48:13,905 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1392, PETRI_DIFFERENCE_MINUEND_PLACES=678, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=688, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=687, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1394, PETRI_PLACES=680, PETRI_TRANSITIONS=688} [2022-11-18 18:48:13,905 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -83 predicate places. [2022-11-18 18:48:13,906 INFO L495 AbstractCegarLoop]: Abstraction has has 680 places, 688 transitions, 1394 flow [2022-11-18 18:48:13,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:13,907 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:13,907 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] [2022-11-18 18:48:13,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 18:48:13,908 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:13,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:13,908 INFO L85 PathProgramCache]: Analyzing trace with hash 717199653, now seen corresponding path program 1 times [2022-11-18 18:48:13,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:13,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574156315] [2022-11-18 18:48:13,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:13,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:13,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:13,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574156315] [2022-11-18 18:48:13,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574156315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:13,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:13,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:13,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868671268] [2022-11-18 18:48:13,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:13,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:13,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:13,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:13,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:13,982 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 711 out of 816 [2022-11-18 18:48:13,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 680 places, 688 transitions, 1394 flow. Second operand has 3 states, 3 states have (on average 712.3333333333334) internal successors, (2137), 3 states have internal predecessors, (2137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:13,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:13,985 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 711 of 816 [2022-11-18 18:48:13,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:14,967 INFO L130 PetriNetUnfolder]: 320/3048 cut-off events. [2022-11-18 18:48:14,967 INFO L131 PetriNetUnfolder]: For 126/136 co-relation queries the response was YES. [2022-11-18 18:48:14,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3553 conditions, 3048 events. 320/3048 cut-off events. For 126/136 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 20272 event pairs, 188 based on Foata normal form. 0/2488 useless extension candidates. Maximal degree in co-relation 3442. Up to 421 conditions per place. [2022-11-18 18:48:14,982 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 24 selfloop transitions, 2 changer transitions 0/687 dead transitions. [2022-11-18 18:48:14,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 681 places, 687 transitions, 1444 flow [2022-11-18 18:48:14,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:14,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:14,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2159 transitions. [2022-11-18 18:48:14,987 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8819444444444444 [2022-11-18 18:48:14,988 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2159 transitions. [2022-11-18 18:48:14,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2159 transitions. [2022-11-18 18:48:14,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:14,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2159 transitions. [2022-11-18 18:48:14,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 719.6666666666666) internal successors, (2159), 3 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) [2022-11-18 18:48:15,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:15,001 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:15,001 INFO L175 Difference]: Start difference. First operand has 680 places, 688 transitions, 1394 flow. Second operand 3 states and 2159 transitions. [2022-11-18 18:48:15,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 681 places, 687 transitions, 1444 flow [2022-11-18 18:48:15,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 680 places, 687 transitions, 1443 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:48:15,015 INFO L231 Difference]: Finished difference. Result has 680 places, 687 transitions, 1395 flow [2022-11-18 18:48:15,016 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1391, PETRI_DIFFERENCE_MINUEND_PLACES=678, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=685, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1395, PETRI_PLACES=680, PETRI_TRANSITIONS=687} [2022-11-18 18:48:15,017 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -83 predicate places. [2022-11-18 18:48:15,017 INFO L495 AbstractCegarLoop]: Abstraction has has 680 places, 687 transitions, 1395 flow [2022-11-18 18:48:15,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 712.3333333333334) internal successors, (2137), 3 states have internal predecessors, (2137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:15,018 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:15,018 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] [2022-11-18 18:48:15,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 18:48:15,019 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:15,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:15,019 INFO L85 PathProgramCache]: Analyzing trace with hash -842581552, now seen corresponding path program 1 times [2022-11-18 18:48:15,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:15,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217621743] [2022-11-18 18:48:15,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:15,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:15,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:15,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:15,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217621743] [2022-11-18 18:48:15,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217621743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:15,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:15,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:48:15,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732907955] [2022-11-18 18:48:15,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:15,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:48:15,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:15,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:48:15,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:48:15,686 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 816 [2022-11-18 18:48:15,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 680 places, 687 transitions, 1395 flow. Second operand has 6 states, 6 states have (on average 587.8333333333334) internal successors, (3527), 6 states have internal predecessors, (3527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:15,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:15,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 816 [2022-11-18 18:48:15,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:42,495 INFO L130 PetriNetUnfolder]: 29019/65835 cut-off events. [2022-11-18 18:48:42,495 INFO L131 PetriNetUnfolder]: For 5284/5284 co-relation queries the response was YES. [2022-11-18 18:48:42,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109904 conditions, 65835 events. 29019/65835 cut-off events. For 5284/5284 co-relation queries the response was YES. Maximal size of possible extension queue 1012. Compared 676721 event pairs, 24554 based on Foata normal form. 0/55087 useless extension candidates. Maximal degree in co-relation 109794. Up to 38943 conditions per place. [2022-11-18 18:48:42,977 INFO L137 encePairwiseOnDemand]: 792/816 looper letters, 128 selfloop transitions, 20 changer transitions 0/683 dead transitions. [2022-11-18 18:48:42,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 681 places, 683 transitions, 1683 flow [2022-11-18 18:48:42,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:48:42,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:48:42,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3667 transitions. [2022-11-18 18:48:42,988 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7489787581699346 [2022-11-18 18:48:42,988 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3667 transitions. [2022-11-18 18:48:42,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3667 transitions. [2022-11-18 18:48:42,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:42,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3667 transitions. [2022-11-18 18:48:43,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 611.1666666666666) internal successors, (3667), 6 states have internal predecessors, (3667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:43,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 816.0) internal successors, (5712), 7 states have internal predecessors, (5712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:43,019 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 816.0) internal successors, (5712), 7 states have internal predecessors, (5712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:43,019 INFO L175 Difference]: Start difference. First operand has 680 places, 687 transitions, 1395 flow. Second operand 6 states and 3667 transitions. [2022-11-18 18:48:43,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 681 places, 683 transitions, 1683 flow [2022-11-18 18:48:43,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 679 places, 683 transitions, 1679 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:48:43,038 INFO L231 Difference]: Finished difference. Result has 679 places, 683 transitions, 1423 flow [2022-11-18 18:48:43,040 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1383, PETRI_DIFFERENCE_MINUEND_PLACES=674, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=663, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1423, PETRI_PLACES=679, PETRI_TRANSITIONS=683} [2022-11-18 18:48:43,041 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -84 predicate places. [2022-11-18 18:48:43,041 INFO L495 AbstractCegarLoop]: Abstraction has has 679 places, 683 transitions, 1423 flow [2022-11-18 18:48:43,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 587.8333333333334) internal successors, (3527), 6 states have internal predecessors, (3527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:43,042 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:43,043 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] [2022-11-18 18:48:43,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 18:48:43,043 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:43,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:43,044 INFO L85 PathProgramCache]: Analyzing trace with hash 630978723, now seen corresponding path program 1 times [2022-11-18 18:48:43,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:43,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828823425] [2022-11-18 18:48:43,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:43,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:43,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:43,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:43,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828823425] [2022-11-18 18:48:43,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828823425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:43,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:43,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:43,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683190597] [2022-11-18 18:48:43,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:43,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:43,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:43,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:43,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:43,122 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 711 out of 816 [2022-11-18 18:48:43,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 679 places, 683 transitions, 1423 flow. Second operand has 3 states, 3 states have (on average 712.3333333333334) internal successors, (2137), 3 states have internal predecessors, (2137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:43,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:43,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 711 of 816 [2022-11-18 18:48:43,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:44,257 INFO L130 PetriNetUnfolder]: 190/2360 cut-off events. [2022-11-18 18:48:44,258 INFO L131 PetriNetUnfolder]: For 58/68 co-relation queries the response was YES. [2022-11-18 18:48:44,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2694 conditions, 2360 events. 190/2360 cut-off events. For 58/68 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 14808 event pairs, 105 based on Foata normal form. 0/1962 useless extension candidates. Maximal degree in co-relation 2630. Up to 245 conditions per place. [2022-11-18 18:48:44,288 INFO L137 encePairwiseOnDemand]: 811/816 looper letters, 21 selfloop transitions, 1 changer transitions 0/679 dead transitions. [2022-11-18 18:48:44,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 677 places, 679 transitions, 1459 flow [2022-11-18 18:48:44,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:44,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:44,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2158 transitions. [2022-11-18 18:48:44,293 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8815359477124183 [2022-11-18 18:48:44,293 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2158 transitions. [2022-11-18 18:48:44,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2158 transitions. [2022-11-18 18:48:44,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:44,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2158 transitions. [2022-11-18 18:48:44,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 719.3333333333334) internal successors, (2158), 3 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:44,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:44,307 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:44,308 INFO L175 Difference]: Start difference. First operand has 679 places, 683 transitions, 1423 flow. Second operand 3 states and 2158 transitions. [2022-11-18 18:48:44,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 677 places, 679 transitions, 1459 flow [2022-11-18 18:48:44,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 672 places, 679 transitions, 1419 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 18:48:44,323 INFO L231 Difference]: Finished difference. Result has 672 places, 679 transitions, 1377 flow [2022-11-18 18:48:44,324 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1375, PETRI_DIFFERENCE_MINUEND_PLACES=670, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=678, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1377, PETRI_PLACES=672, PETRI_TRANSITIONS=679} [2022-11-18 18:48:44,325 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -91 predicate places. [2022-11-18 18:48:44,325 INFO L495 AbstractCegarLoop]: Abstraction has has 672 places, 679 transitions, 1377 flow [2022-11-18 18:48:44,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 712.3333333333334) internal successors, (2137), 3 states have internal predecessors, (2137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:44,326 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:44,327 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:44,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 18:48:44,327 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:44,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:44,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1089772243, now seen corresponding path program 1 times [2022-11-18 18:48:44,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:44,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572153481] [2022-11-18 18:48:44,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:44,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:44,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:44,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:44,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572153481] [2022-11-18 18:48:44,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572153481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:44,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:44,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:44,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448146049] [2022-11-18 18:48:44,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:44,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:44,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:44,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:44,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:44,408 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 714 out of 816 [2022-11-18 18:48:44,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 679 transitions, 1377 flow. Second operand has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:44,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:44,410 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 714 of 816 [2022-11-18 18:48:44,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:45,165 INFO L130 PetriNetUnfolder]: 261/2240 cut-off events. [2022-11-18 18:48:45,165 INFO L131 PetriNetUnfolder]: For 84/94 co-relation queries the response was YES. [2022-11-18 18:48:45,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2689 conditions, 2240 events. 261/2240 cut-off events. For 84/94 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 13959 event pairs, 170 based on Foata normal form. 0/1831 useless extension candidates. Maximal degree in co-relation 2578. Up to 355 conditions per place. [2022-11-18 18:48:45,184 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 21 selfloop transitions, 2 changer transitions 0/678 dead transitions. [2022-11-18 18:48:45,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 673 places, 678 transitions, 1421 flow [2022-11-18 18:48:45,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:45,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2165 transitions. [2022-11-18 18:48:45,191 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8843954248366013 [2022-11-18 18:48:45,191 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2165 transitions. [2022-11-18 18:48:45,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2165 transitions. [2022-11-18 18:48:45,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:45,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2165 transitions. [2022-11-18 18:48:45,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 721.6666666666666) internal successors, (2165), 3 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:45,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:45,203 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:45,203 INFO L175 Difference]: Start difference. First operand has 672 places, 679 transitions, 1377 flow. Second operand 3 states and 2165 transitions. [2022-11-18 18:48:45,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 673 places, 678 transitions, 1421 flow [2022-11-18 18:48:45,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 672 places, 678 transitions, 1420 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:48:45,216 INFO L231 Difference]: Finished difference. Result has 672 places, 678 transitions, 1378 flow [2022-11-18 18:48:45,217 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1374, PETRI_DIFFERENCE_MINUEND_PLACES=670, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1378, PETRI_PLACES=672, PETRI_TRANSITIONS=678} [2022-11-18 18:48:45,218 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -91 predicate places. [2022-11-18 18:48:45,218 INFO L495 AbstractCegarLoop]: Abstraction has has 672 places, 678 transitions, 1378 flow [2022-11-18 18:48:45,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:45,219 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:45,220 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] [2022-11-18 18:48:45,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 18:48:45,220 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:45,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:45,221 INFO L85 PathProgramCache]: Analyzing trace with hash -691613446, now seen corresponding path program 1 times [2022-11-18 18:48:45,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:45,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316004568] [2022-11-18 18:48:45,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:45,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:45,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:45,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:45,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316004568] [2022-11-18 18:48:45,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316004568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:45,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:45,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:45,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70133436] [2022-11-18 18:48:45,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:45,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:45,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:45,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:45,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:45,288 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 720 out of 816 [2022-11-18 18:48:45,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 678 transitions, 1378 flow. Second operand has 3 states, 3 states have (on average 721.3333333333334) internal successors, (2164), 3 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:45,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:45,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 720 of 816 [2022-11-18 18:48:45,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:45,609 INFO L130 PetriNetUnfolder]: 46/841 cut-off events. [2022-11-18 18:48:45,609 INFO L131 PetriNetUnfolder]: For 18/28 co-relation queries the response was YES. [2022-11-18 18:48:45,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 934 conditions, 841 events. 46/841 cut-off events. For 18/28 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2193 event pairs, 17 based on Foata normal form. 0/737 useless extension candidates. Maximal degree in co-relation 822. Up to 59 conditions per place. [2022-11-18 18:48:45,620 INFO L137 encePairwiseOnDemand]: 814/816 looper letters, 15 selfloop transitions, 1 changer transitions 0/677 dead transitions. [2022-11-18 18:48:45,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 673 places, 677 transitions, 1408 flow [2022-11-18 18:48:45,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:45,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:45,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2176 transitions. [2022-11-18 18:48:45,626 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2022-11-18 18:48:45,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2176 transitions. [2022-11-18 18:48:45,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2176 transitions. [2022-11-18 18:48:45,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:45,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2176 transitions. [2022-11-18 18:48:45,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 725.3333333333334) internal successors, (2176), 3 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:45,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:45,637 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:45,638 INFO L175 Difference]: Start difference. First operand has 672 places, 678 transitions, 1378 flow. Second operand 3 states and 2176 transitions. [2022-11-18 18:48:45,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 673 places, 677 transitions, 1408 flow [2022-11-18 18:48:45,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 671 places, 677 transitions, 1404 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:48:45,652 INFO L231 Difference]: Finished difference. Result has 671 places, 677 transitions, 1374 flow [2022-11-18 18:48:45,653 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1372, PETRI_DIFFERENCE_MINUEND_PLACES=669, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=677, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1374, PETRI_PLACES=671, PETRI_TRANSITIONS=677} [2022-11-18 18:48:45,653 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -92 predicate places. [2022-11-18 18:48:45,654 INFO L495 AbstractCegarLoop]: Abstraction has has 671 places, 677 transitions, 1374 flow [2022-11-18 18:48:45,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 721.3333333333334) internal successors, (2164), 3 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:45,655 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:45,655 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] [2022-11-18 18:48:45,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 18:48:45,656 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:45,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:45,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1719653239, now seen corresponding path program 1 times [2022-11-18 18:48:45,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:45,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267016351] [2022-11-18 18:48:45,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:45,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:45,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:45,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:45,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267016351] [2022-11-18 18:48:45,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267016351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:45,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:45,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:45,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913496064] [2022-11-18 18:48:45,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:45,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:45,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:45,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:45,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:45,768 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 720 out of 816 [2022-11-18 18:48:45,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 671 places, 677 transitions, 1374 flow. Second operand has 3 states, 3 states have (on average 721.3333333333334) internal successors, (2164), 3 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:45,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:45,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 720 of 816 [2022-11-18 18:48:45,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:46,226 INFO L130 PetriNetUnfolder]: 46/840 cut-off events. [2022-11-18 18:48:46,226 INFO L131 PetriNetUnfolder]: For 18/28 co-relation queries the response was YES. [2022-11-18 18:48:46,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 933 conditions, 840 events. 46/840 cut-off events. For 18/28 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2186 event pairs, 17 based on Foata normal form. 0/737 useless extension candidates. Maximal degree in co-relation 822. Up to 61 conditions per place. [2022-11-18 18:48:46,236 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 15 selfloop transitions, 2 changer transitions 0/676 dead transitions. [2022-11-18 18:48:46,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 672 places, 676 transitions, 1406 flow [2022-11-18 18:48:46,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:46,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:46,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2177 transitions. [2022-11-18 18:48:46,242 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.889297385620915 [2022-11-18 18:48:46,242 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2177 transitions. [2022-11-18 18:48:46,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2177 transitions. [2022-11-18 18:48:46,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:46,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2177 transitions. [2022-11-18 18:48:46,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 725.6666666666666) internal successors, (2177), 3 states have internal predecessors, (2177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:46,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:46,254 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:46,254 INFO L175 Difference]: Start difference. First operand has 671 places, 677 transitions, 1374 flow. Second operand 3 states and 2177 transitions. [2022-11-18 18:48:46,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 672 places, 676 transitions, 1406 flow [2022-11-18 18:48:46,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 671 places, 676 transitions, 1405 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:48:46,266 INFO L231 Difference]: Finished difference. Result has 671 places, 676 transitions, 1375 flow [2022-11-18 18:48:46,268 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1371, PETRI_DIFFERENCE_MINUEND_PLACES=669, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=676, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1375, PETRI_PLACES=671, PETRI_TRANSITIONS=676} [2022-11-18 18:48:46,268 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -92 predicate places. [2022-11-18 18:48:46,268 INFO L495 AbstractCegarLoop]: Abstraction has has 671 places, 676 transitions, 1375 flow [2022-11-18 18:48:46,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 721.3333333333334) internal successors, (2164), 3 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:46,269 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:46,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:46,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 18:48:46,270 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-18 18:48:46,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:46,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1322287454, now seen corresponding path program 1 times [2022-11-18 18:48:46,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:46,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619262022] [2022-11-18 18:48:46,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:46,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:46,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:46,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:46,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619262022] [2022-11-18 18:48:46,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619262022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:46,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:46,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:46,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714004592] [2022-11-18 18:48:46,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:46,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:46,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:46,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:46,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:46,497 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 619 out of 816 [2022-11-18 18:48:46,499 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 671 places, 676 transitions, 1375 flow. Second operand has 3 states, 3 states have (on average 621.6666666666666) internal successors, (1865), 3 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:48:46,499 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:46,499 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 619 of 816 [2022-11-18 18:48:46,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand