./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8/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_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-e04fb08 [2022-11-16 11:58:42,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:58:42,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:58:42,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:58:42,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:58:42,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:58:42,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:58:42,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:58:42,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:58:42,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:58:42,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:58:42,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:58:42,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:58:42,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:58:42,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:58:42,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:58:42,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:58:42,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:58:42,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:58:42,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:58:42,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:58:42,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:58:42,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:58:42,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:58:42,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:58:42,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:58:42,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:58:42,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:58:42,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:58:42,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:58:42,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:58:42,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:58:42,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:58:42,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:58:42,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:58:42,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:58:42,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:58:42,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:58:42,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:58:42,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:58:42,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:58:42,387 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:58:42,435 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:58:42,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:58:42,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:58:42,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:58:42,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:58:42,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:58:42,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:58:42,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:58:42,438 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:58:42,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:58:42,439 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:58:42,440 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:58:42,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:58:42,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:58:42,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:58:42,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:58:42,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:58:42,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:58:42,441 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:58:42,441 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:58:42,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:58:42,441 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:58:42,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:58:42,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:58:42,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:58:42,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:58:42,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:58:42,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:58:42,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:58:42,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:58:42,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:58:42,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:58:42,444 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:58:42,444 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:58:42,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:58:42,444 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_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29fee1864b0d56497c32cb33e6aaa24ed5707e21c5b89ec418c6707c5ac52336 [2022-11-16 11:58:42,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:58:42,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:58:42,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:58:42,775 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:58:42,775 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:58:42,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2022-11-16 11:58:42,850 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8/data/74b4641a5/b4f1ee9c4f484fb5b9ada19e27a7f20e/FLAG2db790e2b [2022-11-16 11:58:43,473 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:58:43,474 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2022-11-16 11:58:43,488 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8/data/74b4641a5/b4f1ee9c4f484fb5b9ada19e27a7f20e/FLAG2db790e2b [2022-11-16 11:58:43,808 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8/data/74b4641a5/b4f1ee9c4f484fb5b9ada19e27a7f20e [2022-11-16 11:58:43,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:58:43,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:58:43,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:58:43,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:58:43,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:58:43,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:58:43" (1/1) ... [2022-11-16 11:58:43,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@274ebc68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:43, skipping insertion in model container [2022-11-16 11:58:43,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:58:43" (1/1) ... [2022-11-16 11:58:43,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:58:43,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:58:44,128 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2022-11-16 11:58:44,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:58:44,146 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:58:44,196 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2022-11-16 11:58:44,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:58:44,219 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:58:44,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:44 WrapperNode [2022-11-16 11:58:44,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:58:44,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:58:44,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:58:44,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:58:44,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:44" (1/1) ... [2022-11-16 11:58:44,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:44" (1/1) ... [2022-11-16 11:58:44,299 INFO L138 Inliner]: procedures = 28, calls = 80, calls flagged for inlining = 26, calls inlined = 32, statements flattened = 819 [2022-11-16 11:58:44,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:58:44,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:58:44,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:58:44,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:58:44,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:44" (1/1) ... [2022-11-16 11:58:44,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:44" (1/1) ... [2022-11-16 11:58:44,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:44" (1/1) ... [2022-11-16 11:58:44,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:44" (1/1) ... [2022-11-16 11:58:44,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:44" (1/1) ... [2022-11-16 11:58:44,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:44" (1/1) ... [2022-11-16 11:58:44,372 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:44" (1/1) ... [2022-11-16 11:58:44,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:44" (1/1) ... [2022-11-16 11:58:44,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:58:44,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:58:44,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:58:44,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:58:44,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:44" (1/1) ... [2022-11-16 11:58:44,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:58:44,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:58:44,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:58:44,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1191c6-0976-490d-bec0-de3c5ac68700/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:58:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:58:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:58:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:58:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:58:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:58:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:58:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:58:44,496 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:58:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:58:44,496 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:58:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:58:44,497 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:58:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:58:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:58:44,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:58:44,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:58:44,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:58:44,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:58:44,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:58:44,501 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:58:44,729 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:58:44,731 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:58:46,238 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:58:47,261 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:58:47,262 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-16 11:58:47,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:58:47 BoogieIcfgContainer [2022-11-16 11:58:47,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:58:47,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:58:47,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:58:47,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:58:47,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:58:43" (1/3) ... [2022-11-16 11:58:47,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb9f925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:58:47, skipping insertion in model container [2022-11-16 11:58:47,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:44" (2/3) ... [2022-11-16 11:58:47,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb9f925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:58:47, skipping insertion in model container [2022-11-16 11:58:47,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:58:47" (3/3) ... [2022-11-16 11:58:47,278 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons-eq.wvr.c [2022-11-16 11:58:47,291 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:58:47,301 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:58:47,302 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 130 error locations. [2022-11-16 11:58:47,302 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:58:47,645 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 11:58:47,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 785 places, 816 transitions, 1656 flow [2022-11-16 11:58:48,130 INFO L130 PetriNetUnfolder]: 41/813 cut-off events. [2022-11-16 11:58:48,130 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:58:48,147 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. [2022-11-16 11:58:48,148 INFO L82 GeneralOperation]: Start removeDead. Operand has 785 places, 816 transitions, 1656 flow [2022-11-16 11:58:48,168 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 763 places, 793 transitions, 1604 flow [2022-11-16 11:58:48,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:58:48,198 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;@4be047f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:58:48,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 225 error locations. [2022-11-16 11:58:48,204 INFO L130 PetriNetUnfolder]: 0/37 cut-off events. [2022-11-16 11:58:48,204 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:58:48,205 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:48,206 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:58:48,206 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)] === [2022-11-16 11:58:48,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:48,215 INFO L85 PathProgramCache]: Analyzing trace with hash -921774314, now seen corresponding path program 1 times [2022-11-16 11:58:48,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:48,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551209022] [2022-11-16 11:58:48,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:48,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:48,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:48,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:48,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551209022] [2022-11-16 11:58:48,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551209022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:48,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:48,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:58:48,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057541274] [2022-11-16 11:58:48,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:48,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:58:48,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:48,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:58:48,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:58:48,584 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 720 out of 816 [2022-11-16 11:58:48,596 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) [2022-11-16 11:58:48,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:58:48,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 720 of 816 [2022-11-16 11:58:48,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:58:49,211 INFO L130 PetriNetUnfolder]: 38/845 cut-off events. [2022-11-16 11:58:49,211 INFO L131 PetriNetUnfolder]: For 24/29 co-relation queries the response was YES. [2022-11-16 11:58:49,216 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. [2022-11-16 11:58:49,223 INFO L137 encePairwiseOnDemand]: 736/816 looper letters, 14 selfloop transitions, 2 changer transitions 12/715 dead transitions. [2022-11-16 11:58:49,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 713 places, 715 transitions, 1480 flow [2022-11-16 11:58:49,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:58:49,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:58:49,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2254 transitions. [2022-11-16 11:58:49,244 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.920751633986928 [2022-11-16 11:58:49,245 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2254 transitions. [2022-11-16 11:58:49,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2254 transitions. [2022-11-16 11:58:49,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:58:49,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2254 transitions. [2022-11-16 11:58:49,262 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) [2022-11-16 11:58:49,274 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) [2022-11-16 11:58:49,277 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) [2022-11-16 11:58:49,279 INFO L175 Difference]: Start difference. First operand has 763 places, 793 transitions, 1604 flow. Second operand 3 states and 2254 transitions. [2022-11-16 11:58:49,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 713 places, 715 transitions, 1480 flow [2022-11-16 11:58:49,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 707 places, 715 transitions, 1468 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 11:58:49,306 INFO L231 Difference]: Finished difference. Result has 707 places, 703 transitions, 1416 flow [2022-11-16 11:58:49,310 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} [2022-11-16 11:58:49,314 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -56 predicate places. [2022-11-16 11:58:49,315 INFO L495 AbstractCegarLoop]: Abstraction has has 707 places, 703 transitions, 1416 flow [2022-11-16 11:58:49,317 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) [2022-11-16 11:58:49,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:49,317 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] [2022-11-16 11:58:49,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:58:49,318 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)] === [2022-11-16 11:58:49,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:49,319 INFO L85 PathProgramCache]: Analyzing trace with hash -186580960, now seen corresponding path program 1 times [2022-11-16 11:58:49,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:49,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377780782] [2022-11-16 11:58:49,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:49,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:49,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:49,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:49,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377780782] [2022-11-16 11:58:49,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377780782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:49,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:49,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:58:49,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905306044] [2022-11-16 11:58:49,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:49,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:58:49,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:49,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:58:49,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:58:49,452 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 705 out of 816 [2022-11-16 11:58:49,457 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) [2022-11-16 11:58:49,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:58:49,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 705 of 816 [2022-11-16 11:58:49,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:58:50,146 INFO L130 PetriNetUnfolder]: 162/1148 cut-off events. [2022-11-16 11:58:50,146 INFO L131 PetriNetUnfolder]: For 5/17 co-relation queries the response was YES. [2022-11-16 11:58:50,158 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. [2022-11-16 11:58:50,170 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 29 selfloop transitions, 2 changer transitions 0/702 dead transitions. [2022-11-16 11:58:50,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 696 places, 702 transitions, 1476 flow [2022-11-16 11:58:50,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:58:50,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:58:50,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2147 transitions. [2022-11-16 11:58:50,175 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8770424836601307 [2022-11-16 11:58:50,175 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2147 transitions. [2022-11-16 11:58:50,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2147 transitions. [2022-11-16 11:58:50,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:58:50,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2147 transitions. [2022-11-16 11:58:50,182 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) [2022-11-16 11:58:50,188 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) [2022-11-16 11:58:50,190 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) [2022-11-16 11:58:50,190 INFO L175 Difference]: Start difference. First operand has 707 places, 703 transitions, 1416 flow. Second operand 3 states and 2147 transitions. [2022-11-16 11:58:50,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 696 places, 702 transitions, 1476 flow [2022-11-16 11:58:50,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 694 places, 702 transitions, 1472 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:58:50,203 INFO L231 Difference]: Finished difference. Result has 694 places, 702 transitions, 1414 flow [2022-11-16 11:58:50,204 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} [2022-11-16 11:58:50,205 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -69 predicate places. [2022-11-16 11:58:50,205 INFO L495 AbstractCegarLoop]: Abstraction has has 694 places, 702 transitions, 1414 flow [2022-11-16 11:58:50,207 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) [2022-11-16 11:58:50,207 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:50,207 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] [2022-11-16 11:58:50,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:58:50,207 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)] === [2022-11-16 11:58:50,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:50,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1582248289, now seen corresponding path program 1 times [2022-11-16 11:58:50,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:50,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826714985] [2022-11-16 11:58:50,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:50,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:50,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:50,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:50,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826714985] [2022-11-16 11:58:50,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826714985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:50,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:50,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:58:50,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894283026] [2022-11-16 11:58:50,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:50,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:58:50,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:50,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:58:50,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:58:50,273 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 708 out of 816 [2022-11-16 11:58:50,276 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) [2022-11-16 11:58:50,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:58:50,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 708 of 816 [2022-11-16 11:58:50,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:58:50,776 INFO L130 PetriNetUnfolder]: 132/1088 cut-off events. [2022-11-16 11:58:50,777 INFO L131 PetriNetUnfolder]: For 6/16 co-relation queries the response was YES. [2022-11-16 11:58:50,787 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. [2022-11-16 11:58:50,798 INFO L137 encePairwiseOnDemand]: 809/816 looper letters, 26 selfloop transitions, 3 changer transitions 0/703 dead transitions. [2022-11-16 11:58:50,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 692 places, 703 transitions, 1476 flow [2022-11-16 11:58:50,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:58:50,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:58:50,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2157 transitions. [2022-11-16 11:58:50,803 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8811274509803921 [2022-11-16 11:58:50,803 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2157 transitions. [2022-11-16 11:58:50,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2157 transitions. [2022-11-16 11:58:50,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:58:50,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2157 transitions. [2022-11-16 11:58:50,809 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) [2022-11-16 11:58:50,814 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) [2022-11-16 11:58:50,817 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) [2022-11-16 11:58:50,817 INFO L175 Difference]: Start difference. First operand has 694 places, 702 transitions, 1414 flow. Second operand 3 states and 2157 transitions. [2022-11-16 11:58:50,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 692 places, 703 transitions, 1476 flow [2022-11-16 11:58:50,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 690 places, 703 transitions, 1472 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:58:50,829 INFO L231 Difference]: Finished difference. Result has 690 places, 698 transitions, 1408 flow [2022-11-16 11:58:50,830 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} [2022-11-16 11:58:50,831 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -73 predicate places. [2022-11-16 11:58:50,831 INFO L495 AbstractCegarLoop]: Abstraction has has 690 places, 698 transitions, 1408 flow [2022-11-16 11:58:50,833 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) [2022-11-16 11:58:50,833 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:50,833 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:58:50,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:58:50,834 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)] === [2022-11-16 11:58:50,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:50,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1376391631, now seen corresponding path program 1 times [2022-11-16 11:58:50,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:50,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773981379] [2022-11-16 11:58:50,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:50,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:50,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:50,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:50,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773981379] [2022-11-16 11:58:50,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773981379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:50,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:50,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:58:50,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299852229] [2022-11-16 11:58:50,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:50,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:58:50,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:50,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:58:50,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:58:50,892 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 690 out of 816 [2022-11-16 11:58:50,894 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) [2022-11-16 11:58:50,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:58:50,895 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 690 of 816 [2022-11-16 11:58:50,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:58:52,234 INFO L130 PetriNetUnfolder]: 645/2945 cut-off events. [2022-11-16 11:58:52,234 INFO L131 PetriNetUnfolder]: For 222/227 co-relation queries the response was YES. [2022-11-16 11:58:52,248 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. [2022-11-16 11:58:52,271 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 44 selfloop transitions, 2 changer transitions 0/697 dead transitions. [2022-11-16 11:58:52,271 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 691 places, 697 transitions, 1498 flow [2022-11-16 11:58:52,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:58:52,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:58:52,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2117 transitions. [2022-11-16 11:58:52,280 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8647875816993464 [2022-11-16 11:58:52,280 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2117 transitions. [2022-11-16 11:58:52,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2117 transitions. [2022-11-16 11:58:52,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:58:52,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2117 transitions. [2022-11-16 11:58:52,288 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) [2022-11-16 11:58:52,293 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) [2022-11-16 11:58:52,295 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) [2022-11-16 11:58:52,300 INFO L175 Difference]: Start difference. First operand has 690 places, 698 transitions, 1408 flow. Second operand 3 states and 2117 transitions. [2022-11-16 11:58:52,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 691 places, 697 transitions, 1498 flow [2022-11-16 11:58:52,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 689 places, 697 transitions, 1492 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:58:52,314 INFO L231 Difference]: Finished difference. Result has 689 places, 697 transitions, 1404 flow [2022-11-16 11:58:52,315 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} [2022-11-16 11:58:52,316 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -74 predicate places. [2022-11-16 11:58:52,316 INFO L495 AbstractCegarLoop]: Abstraction has has 689 places, 697 transitions, 1404 flow [2022-11-16 11:58:52,318 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) [2022-11-16 11:58:52,318 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:52,318 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] [2022-11-16 11:58:52,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:58:52,318 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)] === [2022-11-16 11:58:52,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:52,319 INFO L85 PathProgramCache]: Analyzing trace with hash 2040804952, now seen corresponding path program 1 times [2022-11-16 11:58:52,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:52,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285720376] [2022-11-16 11:58:52,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:52,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:52,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:52,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:52,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285720376] [2022-11-16 11:58:52,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285720376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:52,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:52,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:58:52,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454654948] [2022-11-16 11:58:52,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:52,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:58:52,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:52,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:58:52,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:58:52,425 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 714 out of 816 [2022-11-16 11:58:52,427 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) [2022-11-16 11:58:52,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:58:52,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 714 of 816 [2022-11-16 11:58:52,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:58:52,793 INFO L130 PetriNetUnfolder]: 38/820 cut-off events. [2022-11-16 11:58:52,793 INFO L131 PetriNetUnfolder]: For 5/10 co-relation queries the response was YES. [2022-11-16 11:58:52,798 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. [2022-11-16 11:58:52,802 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 20 selfloop transitions, 2 changer transitions 0/696 dead transitions. [2022-11-16 11:58:52,803 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 690 places, 696 transitions, 1446 flow [2022-11-16 11:58:52,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:58:52,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:58:52,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2165 transitions. [2022-11-16 11:58:52,808 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8843954248366013 [2022-11-16 11:58:52,808 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2165 transitions. [2022-11-16 11:58:52,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2165 transitions. [2022-11-16 11:58:52,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:58:52,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2165 transitions. [2022-11-16 11:58:52,815 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) [2022-11-16 11:58:52,820 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) [2022-11-16 11:58:52,823 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) [2022-11-16 11:58:52,823 INFO L175 Difference]: Start difference. First operand has 689 places, 697 transitions, 1404 flow. Second operand 3 states and 2165 transitions. [2022-11-16 11:58:52,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 690 places, 696 transitions, 1446 flow [2022-11-16 11:58:52,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 688 places, 696 transitions, 1442 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:58:52,836 INFO L231 Difference]: Finished difference. Result has 688 places, 696 transitions, 1402 flow [2022-11-16 11:58:52,837 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} [2022-11-16 11:58:52,838 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -75 predicate places. [2022-11-16 11:58:52,838 INFO L495 AbstractCegarLoop]: Abstraction has has 688 places, 696 transitions, 1402 flow [2022-11-16 11:58:52,840 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) [2022-11-16 11:58:52,840 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:52,840 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] [2022-11-16 11:58:52,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:58:52,841 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)] === [2022-11-16 11:58:52,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:52,841 INFO L85 PathProgramCache]: Analyzing trace with hash 159796023, now seen corresponding path program 1 times [2022-11-16 11:58:52,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:52,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472615020] [2022-11-16 11:58:52,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:52,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:52,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:52,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:52,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472615020] [2022-11-16 11:58:52,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472615020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:52,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:52,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:58:52,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638699086] [2022-11-16 11:58:52,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:52,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:58:52,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:52,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:58:52,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:58:52,896 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 717 out of 816 [2022-11-16 11:58:52,900 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) [2022-11-16 11:58:52,900 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:58:52,900 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 717 of 816 [2022-11-16 11:58:52,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:58:53,408 INFO L130 PetriNetUnfolder]: 56/1272 cut-off events. [2022-11-16 11:58:53,409 INFO L131 PetriNetUnfolder]: For 9/13 co-relation queries the response was YES. [2022-11-16 11:58:53,418 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. [2022-11-16 11:58:53,423 INFO L137 encePairwiseOnDemand]: 811/816 looper letters, 22 selfloop transitions, 3 changer transitions 0/702 dead transitions. [2022-11-16 11:58:53,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 688 places, 702 transitions, 1468 flow [2022-11-16 11:58:53,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:58:53,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:58:53,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2178 transitions. [2022-11-16 11:58:53,429 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8897058823529411 [2022-11-16 11:58:53,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2178 transitions. [2022-11-16 11:58:53,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2178 transitions. [2022-11-16 11:58:53,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:58:53,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2178 transitions. [2022-11-16 11:58:53,438 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) [2022-11-16 11:58:53,444 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) [2022-11-16 11:58:53,445 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) [2022-11-16 11:58:53,446 INFO L175 Difference]: Start difference. First operand has 688 places, 696 transitions, 1402 flow. Second operand 3 states and 2178 transitions. [2022-11-16 11:58:53,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 688 places, 702 transitions, 1468 flow [2022-11-16 11:58:53,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 686 places, 702 transitions, 1464 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:58:53,460 INFO L231 Difference]: Finished difference. Result has 688 places, 696 transitions, 1414 flow [2022-11-16 11:58:53,461 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} [2022-11-16 11:58:53,462 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -75 predicate places. [2022-11-16 11:58:53,462 INFO L495 AbstractCegarLoop]: Abstraction has has 688 places, 696 transitions, 1414 flow [2022-11-16 11:58:53,464 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) [2022-11-16 11:58:53,464 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:53,464 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] [2022-11-16 11:58:53,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:58:53,465 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)] === [2022-11-16 11:58:53,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:53,465 INFO L85 PathProgramCache]: Analyzing trace with hash -29063476, now seen corresponding path program 1 times [2022-11-16 11:58:53,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:53,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392381847] [2022-11-16 11:58:53,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:53,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:53,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:53,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:53,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392381847] [2022-11-16 11:58:53,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392381847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:53,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:53,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:58:53,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653830494] [2022-11-16 11:58:53,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:53,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:58:53,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:53,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:58:53,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:58:53,524 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 705 out of 816 [2022-11-16 11:58:53,527 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) [2022-11-16 11:58:53,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:58:53,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 705 of 816 [2022-11-16 11:58:53,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:58:55,198 INFO L130 PetriNetUnfolder]: 424/3632 cut-off events. [2022-11-16 11:58:55,199 INFO L131 PetriNetUnfolder]: For 246/274 co-relation queries the response was YES. [2022-11-16 11:58:55,219 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. [2022-11-16 11:58:55,239 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 29 selfloop transitions, 2 changer transitions 0/695 dead transitions. [2022-11-16 11:58:55,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 689 places, 695 transitions, 1474 flow [2022-11-16 11:58:55,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:58:55,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:58:55,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2146 transitions. [2022-11-16 11:58:55,245 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8766339869281046 [2022-11-16 11:58:55,246 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2146 transitions. [2022-11-16 11:58:55,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2146 transitions. [2022-11-16 11:58:55,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:58:55,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2146 transitions. [2022-11-16 11:58:55,254 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) [2022-11-16 11:58:55,259 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) [2022-11-16 11:58:55,261 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) [2022-11-16 11:58:55,261 INFO L175 Difference]: Start difference. First operand has 688 places, 696 transitions, 1414 flow. Second operand 3 states and 2146 transitions. [2022-11-16 11:58:55,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 689 places, 695 transitions, 1474 flow [2022-11-16 11:58:55,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 687 places, 695 transitions, 1468 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:58:55,276 INFO L231 Difference]: Finished difference. Result has 687 places, 695 transitions, 1410 flow [2022-11-16 11:58:55,277 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} [2022-11-16 11:58:55,278 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -76 predicate places. [2022-11-16 11:58:55,278 INFO L495 AbstractCegarLoop]: Abstraction has has 687 places, 695 transitions, 1410 flow [2022-11-16 11:58:55,279 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) [2022-11-16 11:58:55,279 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:55,280 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] [2022-11-16 11:58:55,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:58:55,280 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)] === [2022-11-16 11:58:55,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:55,281 INFO L85 PathProgramCache]: Analyzing trace with hash -324754665, now seen corresponding path program 1 times [2022-11-16 11:58:55,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:55,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589878881] [2022-11-16 11:58:55,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:55,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:55,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:55,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:55,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589878881] [2022-11-16 11:58:55,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589878881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:55,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:55,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:58:55,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164332300] [2022-11-16 11:58:55,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:55,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:58:55,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:55,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:58:55,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:58:55,335 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 717 out of 816 [2022-11-16 11:58:55,338 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) [2022-11-16 11:58:55,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:58:55,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 717 of 816 [2022-11-16 11:58:55,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:58:55,717 INFO L130 PetriNetUnfolder]: 46/860 cut-off events. [2022-11-16 11:58:55,717 INFO L131 PetriNetUnfolder]: For 18/28 co-relation queries the response was YES. [2022-11-16 11:58:55,724 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. [2022-11-16 11:58:55,730 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 18 selfloop transitions, 2 changer transitions 0/694 dead transitions. [2022-11-16 11:58:55,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 688 places, 694 transitions, 1448 flow [2022-11-16 11:58:55,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:58:55,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:58:55,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2171 transitions. [2022-11-16 11:58:55,737 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8868464052287581 [2022-11-16 11:58:55,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2171 transitions. [2022-11-16 11:58:55,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2171 transitions. [2022-11-16 11:58:55,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:58:55,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2171 transitions. [2022-11-16 11:58:55,745 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) [2022-11-16 11:58:55,751 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) [2022-11-16 11:58:55,752 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) [2022-11-16 11:58:55,752 INFO L175 Difference]: Start difference. First operand has 687 places, 695 transitions, 1410 flow. Second operand 3 states and 2171 transitions. [2022-11-16 11:58:55,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 688 places, 694 transitions, 1448 flow [2022-11-16 11:58:55,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 686 places, 694 transitions, 1444 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:58:55,767 INFO L231 Difference]: Finished difference. Result has 686 places, 694 transitions, 1408 flow [2022-11-16 11:58:55,768 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} [2022-11-16 11:58:55,769 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -77 predicate places. [2022-11-16 11:58:55,769 INFO L495 AbstractCegarLoop]: Abstraction has has 686 places, 694 transitions, 1408 flow [2022-11-16 11:58:55,770 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) [2022-11-16 11:58:55,770 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:55,771 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] [2022-11-16 11:58:55,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:58:55,771 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)] === [2022-11-16 11:58:55,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:55,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1234180440, now seen corresponding path program 1 times [2022-11-16 11:58:55,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:55,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107682439] [2022-11-16 11:58:55,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:55,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:55,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:55,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:55,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107682439] [2022-11-16 11:58:55,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107682439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:55,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:55,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:58:55,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380584463] [2022-11-16 11:58:55,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:55,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:58:55,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:55,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:58:55,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:58:55,837 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 714 out of 816 [2022-11-16 11:58:55,840 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) [2022-11-16 11:58:55,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:58:55,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 714 of 816 [2022-11-16 11:58:55,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:58:56,872 INFO L130 PetriNetUnfolder]: 164/3054 cut-off events. [2022-11-16 11:58:56,873 INFO L131 PetriNetUnfolder]: For 54/64 co-relation queries the response was YES. [2022-11-16 11:58:56,902 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. [2022-11-16 11:58:56,917 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 21 selfloop transitions, 2 changer transitions 0/693 dead transitions. [2022-11-16 11:58:56,917 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 693 transitions, 1452 flow [2022-11-16 11:58:56,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:58:56,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:58:56,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2165 transitions. [2022-11-16 11:58:56,923 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8843954248366013 [2022-11-16 11:58:56,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2165 transitions. [2022-11-16 11:58:56,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2165 transitions. [2022-11-16 11:58:56,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:58:56,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2165 transitions. [2022-11-16 11:58:56,932 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) [2022-11-16 11:58:56,937 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) [2022-11-16 11:58:56,938 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) [2022-11-16 11:58:56,938 INFO L175 Difference]: Start difference. First operand has 686 places, 694 transitions, 1408 flow. Second operand 3 states and 2165 transitions. [2022-11-16 11:58:56,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 687 places, 693 transitions, 1452 flow [2022-11-16 11:58:56,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 685 places, 693 transitions, 1448 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:58:56,951 INFO L231 Difference]: Finished difference. Result has 685 places, 693 transitions, 1406 flow [2022-11-16 11:58:56,952 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} [2022-11-16 11:58:56,953 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -78 predicate places. [2022-11-16 11:58:56,953 INFO L495 AbstractCegarLoop]: Abstraction has has 685 places, 693 transitions, 1406 flow [2022-11-16 11:58:56,954 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) [2022-11-16 11:58:56,954 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:56,955 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] [2022-11-16 11:58:56,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:58:56,955 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)] === [2022-11-16 11:58:56,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:56,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1358507234, now seen corresponding path program 1 times [2022-11-16 11:58:56,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:56,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562765001] [2022-11-16 11:58:56,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:56,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:57,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:57,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:57,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562765001] [2022-11-16 11:58:57,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562765001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:57,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:57,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:58:57,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708132428] [2022-11-16 11:58:57,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:57,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:58:57,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:57,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:58:57,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:58:57,051 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 708 out of 816 [2022-11-16 11:58:57,053 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) [2022-11-16 11:58:57,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:58:57,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 708 of 816 [2022-11-16 11:58:57,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:58:58,039 INFO L130 PetriNetUnfolder]: 276/2680 cut-off events. [2022-11-16 11:58:58,039 INFO L131 PetriNetUnfolder]: For 84/94 co-relation queries the response was YES. [2022-11-16 11:58:58,054 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. [2022-11-16 11:58:58,070 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 27 selfloop transitions, 2 changer transitions 0/692 dead transitions. [2022-11-16 11:58:58,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 686 places, 692 transitions, 1462 flow [2022-11-16 11:58:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:58:58,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:58:58,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2153 transitions. [2022-11-16 11:58:58,076 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8794934640522876 [2022-11-16 11:58:58,076 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2153 transitions. [2022-11-16 11:58:58,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2153 transitions. [2022-11-16 11:58:58,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:58:58,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2153 transitions. [2022-11-16 11:58:58,082 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) [2022-11-16 11:58:58,086 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) [2022-11-16 11:58:58,088 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) [2022-11-16 11:58:58,088 INFO L175 Difference]: Start difference. First operand has 685 places, 693 transitions, 1406 flow. Second operand 3 states and 2153 transitions. [2022-11-16 11:58:58,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 686 places, 692 transitions, 1462 flow [2022-11-16 11:58:58,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 684 places, 692 transitions, 1458 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:58:58,099 INFO L231 Difference]: Finished difference. Result has 684 places, 692 transitions, 1404 flow [2022-11-16 11:58:58,100 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} [2022-11-16 11:58:58,101 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -79 predicate places. [2022-11-16 11:58:58,101 INFO L495 AbstractCegarLoop]: Abstraction has has 684 places, 692 transitions, 1404 flow [2022-11-16 11:58:58,102 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) [2022-11-16 11:58:58,102 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:58,102 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] [2022-11-16 11:58:58,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:58:58,102 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)] === [2022-11-16 11:58:58,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:58,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1131958482, now seen corresponding path program 1 times [2022-11-16 11:58:58,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:58,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915671657] [2022-11-16 11:58:58,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:58,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:58,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:58,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:58,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915671657] [2022-11-16 11:58:58,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915671657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:58,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:58,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:58:58,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41052016] [2022-11-16 11:58:58,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:58,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:58:58,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:58,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:58:58,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:58:58,147 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 705 out of 816 [2022-11-16 11:58:58,149 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) [2022-11-16 11:58:58,149 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:58:58,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 705 of 816 [2022-11-16 11:58:58,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:58:59,366 INFO L130 PetriNetUnfolder]: 177/3325 cut-off events. [2022-11-16 11:58:59,366 INFO L131 PetriNetUnfolder]: For 54/64 co-relation queries the response was YES. [2022-11-16 11:58:59,393 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. [2022-11-16 11:58:59,409 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 30 selfloop transitions, 2 changer transitions 0/691 dead transitions. [2022-11-16 11:58:59,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 685 places, 691 transitions, 1466 flow [2022-11-16 11:58:59,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:58:59,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:58:59,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2147 transitions. [2022-11-16 11:58:59,415 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8770424836601307 [2022-11-16 11:58:59,415 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2147 transitions. [2022-11-16 11:58:59,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2147 transitions. [2022-11-16 11:58:59,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:58:59,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2147 transitions. [2022-11-16 11:58:59,421 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) [2022-11-16 11:58:59,425 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) [2022-11-16 11:58:59,427 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) [2022-11-16 11:58:59,427 INFO L175 Difference]: Start difference. First operand has 684 places, 692 transitions, 1404 flow. Second operand 3 states and 2147 transitions. [2022-11-16 11:58:59,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 685 places, 691 transitions, 1466 flow [2022-11-16 11:58:59,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 683 places, 691 transitions, 1462 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:58:59,438 INFO L231 Difference]: Finished difference. Result has 683 places, 691 transitions, 1402 flow [2022-11-16 11:58:59,439 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} [2022-11-16 11:58:59,440 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -80 predicate places. [2022-11-16 11:58:59,440 INFO L495 AbstractCegarLoop]: Abstraction has has 683 places, 691 transitions, 1402 flow [2022-11-16 11:58:59,441 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) [2022-11-16 11:58:59,441 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:58:59,442 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] [2022-11-16 11:58:59,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:58:59,442 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)] === [2022-11-16 11:58:59,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:59,443 INFO L85 PathProgramCache]: Analyzing trace with hash 222068022, now seen corresponding path program 1 times [2022-11-16 11:58:59,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:59,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319692731] [2022-11-16 11:58:59,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:59,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:59,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:58:59,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:59,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319692731] [2022-11-16 11:58:59,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319692731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:59,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:59,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:58:59,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802627986] [2022-11-16 11:58:59,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:59,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:58:59,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:59,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:58:59,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:58:59,490 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 714 out of 816 [2022-11-16 11:58:59,492 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) [2022-11-16 11:58:59,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:58:59,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 714 of 816 [2022-11-16 11:58:59,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:59:00,254 INFO L130 PetriNetUnfolder]: 151/2518 cut-off events. [2022-11-16 11:59:00,254 INFO L131 PetriNetUnfolder]: For 54/64 co-relation queries the response was YES. [2022-11-16 11:59:00,267 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. [2022-11-16 11:59:00,276 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 21 selfloop transitions, 2 changer transitions 0/690 dead transitions. [2022-11-16 11:59:00,276 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 684 places, 690 transitions, 1446 flow [2022-11-16 11:59:00,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:59:00,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:59:00,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2165 transitions. [2022-11-16 11:59:00,282 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8843954248366013 [2022-11-16 11:59:00,282 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2165 transitions. [2022-11-16 11:59:00,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2165 transitions. [2022-11-16 11:59:00,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:59:00,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2165 transitions. [2022-11-16 11:59:00,288 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) [2022-11-16 11:59:00,293 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) [2022-11-16 11:59:00,294 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) [2022-11-16 11:59:00,294 INFO L175 Difference]: Start difference. First operand has 683 places, 691 transitions, 1402 flow. Second operand 3 states and 2165 transitions. [2022-11-16 11:59:00,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 684 places, 690 transitions, 1446 flow [2022-11-16 11:59:00,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 682 places, 690 transitions, 1442 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:59:00,305 INFO L231 Difference]: Finished difference. Result has 682 places, 690 transitions, 1400 flow [2022-11-16 11:59:00,306 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} [2022-11-16 11:59:00,309 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -81 predicate places. [2022-11-16 11:59:00,309 INFO L495 AbstractCegarLoop]: Abstraction has has 682 places, 690 transitions, 1400 flow [2022-11-16 11:59:00,310 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) [2022-11-16 11:59:00,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:59:00,311 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:59:00,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:59:00,311 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)] === [2022-11-16 11:59:00,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:00,312 INFO L85 PathProgramCache]: Analyzing trace with hash -140088498, now seen corresponding path program 1 times [2022-11-16 11:59:00,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:59:00,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912160844] [2022-11-16 11:59:00,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:00,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:59:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:00,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:59:00,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:59:00,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912160844] [2022-11-16 11:59:00,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912160844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:59:00,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:59:00,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:59:00,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367638158] [2022-11-16 11:59:00,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:59:00,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:59:00,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:59:00,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:59:00,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:59:00,359 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 717 out of 816 [2022-11-16 11:59:00,361 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) [2022-11-16 11:59:00,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:59:00,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 717 of 816 [2022-11-16 11:59:00,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:59:01,028 INFO L130 PetriNetUnfolder]: 138/3010 cut-off events. [2022-11-16 11:59:01,029 INFO L131 PetriNetUnfolder]: For 42/52 co-relation queries the response was YES. [2022-11-16 11:59:01,049 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. [2022-11-16 11:59:01,060 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 17 selfloop transitions, 1 changer transitions 0/688 dead transitions. [2022-11-16 11:59:01,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 682 places, 688 transitions, 1432 flow [2022-11-16 11:59:01,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:59:01,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:59:01,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2170 transitions. [2022-11-16 11:59:01,066 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.886437908496732 [2022-11-16 11:59:01,066 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2170 transitions. [2022-11-16 11:59:01,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2170 transitions. [2022-11-16 11:59:01,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:59:01,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2170 transitions. [2022-11-16 11:59:01,072 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) [2022-11-16 11:59:01,077 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) [2022-11-16 11:59:01,078 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) [2022-11-16 11:59:01,079 INFO L175 Difference]: Start difference. First operand has 682 places, 690 transitions, 1400 flow. Second operand 3 states and 2170 transitions. [2022-11-16 11:59:01,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 682 places, 688 transitions, 1432 flow [2022-11-16 11:59:01,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 680 places, 688 transitions, 1428 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:59:01,091 INFO L231 Difference]: Finished difference. Result has 680 places, 688 transitions, 1394 flow [2022-11-16 11:59:01,093 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} [2022-11-16 11:59:01,093 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -83 predicate places. [2022-11-16 11:59:01,094 INFO L495 AbstractCegarLoop]: Abstraction has has 680 places, 688 transitions, 1394 flow [2022-11-16 11:59:01,095 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) [2022-11-16 11:59:01,095 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:59:01,095 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:59:01,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:59:01,096 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)] === [2022-11-16 11:59:01,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:01,096 INFO L85 PathProgramCache]: Analyzing trace with hash 717199653, now seen corresponding path program 1 times [2022-11-16 11:59:01,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:59:01,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731024261] [2022-11-16 11:59:01,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:01,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:59:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:01,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:59:01,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:59:01,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731024261] [2022-11-16 11:59:01,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731024261] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:59:01,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:59:01,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:59:01,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279215843] [2022-11-16 11:59:01,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:59:01,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:59:01,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:59:01,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:59:01,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:59:01,165 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 711 out of 816 [2022-11-16 11:59:01,167 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) [2022-11-16 11:59:01,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:59:01,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 711 of 816 [2022-11-16 11:59:01,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:59:01,986 INFO L130 PetriNetUnfolder]: 320/3048 cut-off events. [2022-11-16 11:59:01,986 INFO L131 PetriNetUnfolder]: For 126/136 co-relation queries the response was YES. [2022-11-16 11:59:01,997 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. [2022-11-16 11:59:02,006 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 24 selfloop transitions, 2 changer transitions 0/687 dead transitions. [2022-11-16 11:59:02,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 681 places, 687 transitions, 1444 flow [2022-11-16 11:59:02,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:59:02,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:59:02,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2159 transitions. [2022-11-16 11:59:02,012 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8819444444444444 [2022-11-16 11:59:02,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2159 transitions. [2022-11-16 11:59:02,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2159 transitions. [2022-11-16 11:59:02,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:59:02,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2159 transitions. [2022-11-16 11:59:02,018 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) [2022-11-16 11:59:02,022 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) [2022-11-16 11:59:02,024 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) [2022-11-16 11:59:02,024 INFO L175 Difference]: Start difference. First operand has 680 places, 688 transitions, 1394 flow. Second operand 3 states and 2159 transitions. [2022-11-16 11:59:02,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 681 places, 687 transitions, 1444 flow [2022-11-16 11:59:02,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 680 places, 687 transitions, 1443 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:59:02,036 INFO L231 Difference]: Finished difference. Result has 680 places, 687 transitions, 1395 flow [2022-11-16 11:59:02,037 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} [2022-11-16 11:59:02,038 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -83 predicate places. [2022-11-16 11:59:02,038 INFO L495 AbstractCegarLoop]: Abstraction has has 680 places, 687 transitions, 1395 flow [2022-11-16 11:59:02,039 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) [2022-11-16 11:59:02,039 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:59:02,039 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:59:02,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:59:02,040 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)] === [2022-11-16 11:59:02,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:02,040 INFO L85 PathProgramCache]: Analyzing trace with hash -842581552, now seen corresponding path program 1 times [2022-11-16 11:59:02,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:59:02,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018830396] [2022-11-16 11:59:02,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:02,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:59:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:02,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:59:02,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:59:02,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018830396] [2022-11-16 11:59:02,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018830396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:59:02,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:59:02,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:59:02,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029299502] [2022-11-16 11:59:02,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:59:02,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:59:02,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:59:02,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:59:02,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:59:02,604 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 816 [2022-11-16 11:59:02,607 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) [2022-11-16 11:59:02,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:59:02,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 816 [2022-11-16 11:59:02,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:59:28,042 INFO L130 PetriNetUnfolder]: 29019/65835 cut-off events. [2022-11-16 11:59:28,042 INFO L131 PetriNetUnfolder]: For 5284/5284 co-relation queries the response was YES. [2022-11-16 11:59:28,257 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. [2022-11-16 11:59:28,525 INFO L137 encePairwiseOnDemand]: 792/816 looper letters, 128 selfloop transitions, 20 changer transitions 0/683 dead transitions. [2022-11-16 11:59:28,525 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 681 places, 683 transitions, 1683 flow [2022-11-16 11:59:28,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:59:28,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:59:28,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3667 transitions. [2022-11-16 11:59:28,536 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7489787581699346 [2022-11-16 11:59:28,536 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3667 transitions. [2022-11-16 11:59:28,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3667 transitions. [2022-11-16 11:59:28,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:59:28,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3667 transitions. [2022-11-16 11:59:28,548 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) [2022-11-16 11:59:28,557 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) [2022-11-16 11:59:28,560 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) [2022-11-16 11:59:28,560 INFO L175 Difference]: Start difference. First operand has 680 places, 687 transitions, 1395 flow. Second operand 6 states and 3667 transitions. [2022-11-16 11:59:28,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 681 places, 683 transitions, 1683 flow [2022-11-16 11:59:28,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 679 places, 683 transitions, 1679 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:59:28,577 INFO L231 Difference]: Finished difference. Result has 679 places, 683 transitions, 1423 flow [2022-11-16 11:59:28,579 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} [2022-11-16 11:59:28,579 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -84 predicate places. [2022-11-16 11:59:28,580 INFO L495 AbstractCegarLoop]: Abstraction has has 679 places, 683 transitions, 1423 flow [2022-11-16 11:59:28,581 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) [2022-11-16 11:59:28,581 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:59:28,581 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] [2022-11-16 11:59:28,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:59:28,582 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)] === [2022-11-16 11:59:28,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:28,583 INFO L85 PathProgramCache]: Analyzing trace with hash 630978723, now seen corresponding path program 1 times [2022-11-16 11:59:28,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:59:28,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342663052] [2022-11-16 11:59:28,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:28,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:59:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:28,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:59:28,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:59:28,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342663052] [2022-11-16 11:59:28,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342663052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:59:28,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:59:28,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:59:28,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195527464] [2022-11-16 11:59:28,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:59:28,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:59:28,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:59:28,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:59:28,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:59:28,654 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 711 out of 816 [2022-11-16 11:59:28,657 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) [2022-11-16 11:59:28,657 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:59:28,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 711 of 816 [2022-11-16 11:59:28,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:59:29,653 INFO L130 PetriNetUnfolder]: 190/2360 cut-off events. [2022-11-16 11:59:29,654 INFO L131 PetriNetUnfolder]: For 58/68 co-relation queries the response was YES. [2022-11-16 11:59:29,675 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. [2022-11-16 11:59:29,688 INFO L137 encePairwiseOnDemand]: 811/816 looper letters, 21 selfloop transitions, 1 changer transitions 0/679 dead transitions. [2022-11-16 11:59:29,689 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 677 places, 679 transitions, 1459 flow [2022-11-16 11:59:29,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:59:29,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:59:29,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2158 transitions. [2022-11-16 11:59:29,694 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8815359477124183 [2022-11-16 11:59:29,694 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2158 transitions. [2022-11-16 11:59:29,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2158 transitions. [2022-11-16 11:59:29,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:59:29,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2158 transitions. [2022-11-16 11:59:29,700 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) [2022-11-16 11:59:29,704 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) [2022-11-16 11:59:29,706 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) [2022-11-16 11:59:29,707 INFO L175 Difference]: Start difference. First operand has 679 places, 683 transitions, 1423 flow. Second operand 3 states and 2158 transitions. [2022-11-16 11:59:29,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 677 places, 679 transitions, 1459 flow [2022-11-16 11:59:29,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 672 places, 679 transitions, 1419 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:59:29,722 INFO L231 Difference]: Finished difference. Result has 672 places, 679 transitions, 1377 flow [2022-11-16 11:59:29,723 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} [2022-11-16 11:59:29,723 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -91 predicate places. [2022-11-16 11:59:29,724 INFO L495 AbstractCegarLoop]: Abstraction has has 672 places, 679 transitions, 1377 flow [2022-11-16 11:59:29,725 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) [2022-11-16 11:59:29,725 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:59:29,725 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:59:29,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:59:29,726 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)] === [2022-11-16 11:59:29,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:29,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1089772243, now seen corresponding path program 1 times [2022-11-16 11:59:29,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:59:29,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235114264] [2022-11-16 11:59:29,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:29,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:59:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:29,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:59:29,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:59:29,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235114264] [2022-11-16 11:59:29,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235114264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:59:29,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:59:29,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:59:29,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118777845] [2022-11-16 11:59:29,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:59:29,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:59:29,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:59:29,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:59:29,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:59:29,817 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 714 out of 816 [2022-11-16 11:59:29,820 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) [2022-11-16 11:59:29,820 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:59:29,820 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 714 of 816 [2022-11-16 11:59:29,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:59:30,795 INFO L130 PetriNetUnfolder]: 261/2240 cut-off events. [2022-11-16 11:59:30,795 INFO L131 PetriNetUnfolder]: For 84/94 co-relation queries the response was YES. [2022-11-16 11:59:30,803 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. [2022-11-16 11:59:30,814 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 21 selfloop transitions, 2 changer transitions 0/678 dead transitions. [2022-11-16 11:59:30,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 673 places, 678 transitions, 1421 flow [2022-11-16 11:59:30,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:59:30,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:59:30,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2165 transitions. [2022-11-16 11:59:30,819 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8843954248366013 [2022-11-16 11:59:30,820 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2165 transitions. [2022-11-16 11:59:30,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2165 transitions. [2022-11-16 11:59:30,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:59:30,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2165 transitions. [2022-11-16 11:59:30,825 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) [2022-11-16 11:59:30,830 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) [2022-11-16 11:59:30,831 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) [2022-11-16 11:59:30,832 INFO L175 Difference]: Start difference. First operand has 672 places, 679 transitions, 1377 flow. Second operand 3 states and 2165 transitions. [2022-11-16 11:59:30,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 673 places, 678 transitions, 1421 flow [2022-11-16 11:59:30,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 672 places, 678 transitions, 1420 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:59:30,844 INFO L231 Difference]: Finished difference. Result has 672 places, 678 transitions, 1378 flow [2022-11-16 11:59:30,845 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} [2022-11-16 11:59:30,846 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -91 predicate places. [2022-11-16 11:59:30,846 INFO L495 AbstractCegarLoop]: Abstraction has has 672 places, 678 transitions, 1378 flow [2022-11-16 11:59:30,847 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) [2022-11-16 11:59:30,847 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:59:30,847 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] [2022-11-16 11:59:30,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:59:30,848 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)] === [2022-11-16 11:59:30,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:30,848 INFO L85 PathProgramCache]: Analyzing trace with hash -691613446, now seen corresponding path program 1 times [2022-11-16 11:59:30,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:59:30,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467243086] [2022-11-16 11:59:30,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:30,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:59:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:30,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:59:30,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:59:30,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467243086] [2022-11-16 11:59:30,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467243086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:59:30,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:59:30,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:59:30,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603679842] [2022-11-16 11:59:30,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:59:30,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:59:30,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:59:30,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:59:30,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:59:30,920 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 720 out of 816 [2022-11-16 11:59:30,922 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) [2022-11-16 11:59:30,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:59:30,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 720 of 816 [2022-11-16 11:59:30,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:59:31,267 INFO L130 PetriNetUnfolder]: 46/841 cut-off events. [2022-11-16 11:59:31,268 INFO L131 PetriNetUnfolder]: For 18/28 co-relation queries the response was YES. [2022-11-16 11:59:31,275 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. [2022-11-16 11:59:31,280 INFO L137 encePairwiseOnDemand]: 814/816 looper letters, 15 selfloop transitions, 1 changer transitions 0/677 dead transitions. [2022-11-16 11:59:31,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 673 places, 677 transitions, 1408 flow [2022-11-16 11:59:31,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:59:31,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:59:31,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2176 transitions. [2022-11-16 11:59:31,286 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2022-11-16 11:59:31,286 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2176 transitions. [2022-11-16 11:59:31,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2176 transitions. [2022-11-16 11:59:31,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:59:31,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2176 transitions. [2022-11-16 11:59:31,291 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) [2022-11-16 11:59:31,299 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) [2022-11-16 11:59:31,300 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) [2022-11-16 11:59:31,300 INFO L175 Difference]: Start difference. First operand has 672 places, 678 transitions, 1378 flow. Second operand 3 states and 2176 transitions. [2022-11-16 11:59:31,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 673 places, 677 transitions, 1408 flow [2022-11-16 11:59:31,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 671 places, 677 transitions, 1404 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:59:31,313 INFO L231 Difference]: Finished difference. Result has 671 places, 677 transitions, 1374 flow [2022-11-16 11:59:31,314 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} [2022-11-16 11:59:31,314 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -92 predicate places. [2022-11-16 11:59:31,314 INFO L495 AbstractCegarLoop]: Abstraction has has 671 places, 677 transitions, 1374 flow [2022-11-16 11:59:31,315 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) [2022-11-16 11:59:31,315 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:59:31,316 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] [2022-11-16 11:59:31,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:59:31,316 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)] === [2022-11-16 11:59:31,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:31,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1719653239, now seen corresponding path program 1 times [2022-11-16 11:59:31,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:59:31,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781401915] [2022-11-16 11:59:31,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:31,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:59:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:31,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:59:31,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:59:31,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781401915] [2022-11-16 11:59:31,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781401915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:59:31,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:59:31,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:59:31,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621041763] [2022-11-16 11:59:31,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:59:31,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:59:31,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:59:31,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:59:31,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:59:31,416 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 720 out of 816 [2022-11-16 11:59:31,418 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) [2022-11-16 11:59:31,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:59:31,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 720 of 816 [2022-11-16 11:59:31,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:59:31,790 INFO L130 PetriNetUnfolder]: 46/840 cut-off events. [2022-11-16 11:59:31,790 INFO L131 PetriNetUnfolder]: For 18/28 co-relation queries the response was YES. [2022-11-16 11:59:31,797 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. [2022-11-16 11:59:31,801 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 15 selfloop transitions, 2 changer transitions 0/676 dead transitions. [2022-11-16 11:59:31,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 672 places, 676 transitions, 1406 flow [2022-11-16 11:59:31,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:59:31,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:59:31,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2177 transitions. [2022-11-16 11:59:31,806 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.889297385620915 [2022-11-16 11:59:31,806 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2177 transitions. [2022-11-16 11:59:31,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2177 transitions. [2022-11-16 11:59:31,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:59:31,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2177 transitions. [2022-11-16 11:59:31,811 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) [2022-11-16 11:59:31,814 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) [2022-11-16 11:59:31,816 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) [2022-11-16 11:59:31,816 INFO L175 Difference]: Start difference. First operand has 671 places, 677 transitions, 1374 flow. Second operand 3 states and 2177 transitions. [2022-11-16 11:59:31,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 672 places, 676 transitions, 1406 flow [2022-11-16 11:59:31,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 671 places, 676 transitions, 1405 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:59:31,828 INFO L231 Difference]: Finished difference. Result has 671 places, 676 transitions, 1375 flow [2022-11-16 11:59:31,829 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} [2022-11-16 11:59:31,829 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -92 predicate places. [2022-11-16 11:59:31,830 INFO L495 AbstractCegarLoop]: Abstraction has has 671 places, 676 transitions, 1375 flow [2022-11-16 11:59:31,831 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) [2022-11-16 11:59:31,831 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:59:31,831 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] [2022-11-16 11:59:31,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:59:31,832 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)] === [2022-11-16 11:59:31,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:31,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1322287454, now seen corresponding path program 1 times [2022-11-16 11:59:31,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:59:31,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945283633] [2022-11-16 11:59:31,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:31,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:59:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:32,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:59:32,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:59:32,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945283633] [2022-11-16 11:59:32,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945283633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:59:32,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:59:32,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:59:32,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935076040] [2022-11-16 11:59:32,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:59:32,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:59:32,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:59:32,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:59:32,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:59:32,099 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 619 out of 816 [2022-11-16 11:59:32,101 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) [2022-11-16 11:59:32,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:59:32,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 619 of 816 [2022-11-16 11:59:32,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand