./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa --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 e97ea8fdd79cc88ea5d66529f91fae4bb4475970931b09c5966dea7f1229156f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:39:14,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:39:14,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:39:14,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:39:14,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:39:14,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:39:14,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:39:14,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:39:14,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:39:14,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:39:14,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:39:14,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:39:14,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:39:14,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:39:14,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:39:14,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:39:14,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:39:14,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:39:14,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:39:14,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:39:14,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:39:14,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:39:14,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:39:14,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:39:14,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:39:14,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:39:14,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:39:14,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:39:14,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:39:14,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:39:14,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:39:14,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:39:14,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:39:14,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:39:14,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:39:14,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:39:14,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:39:14,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:39:14,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:39:14,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:39:14,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:39:14,551 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-12-06 22:39:14,568 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:39:14,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:39:14,568 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:39:14,568 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:39:14,569 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:39:14,569 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:39:14,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:39:14,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:39:14,570 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:39:14,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:39:14,570 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:39:14,570 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 22:39:14,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:39:14,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:39:14,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:39:14,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:39:14,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:39:14,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:39:14,571 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-12-06 22:39:14,571 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:39:14,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:39:14,571 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:39:14,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:39:14,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:39:14,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:39:14,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:39:14,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:39:14,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:39:14,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:39:14,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:39:14,572 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:39:14,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:39:14,573 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:39:14,573 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:39:14,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:39:14,573 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:39:14,573 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_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e97ea8fdd79cc88ea5d66529f91fae4bb4475970931b09c5966dea7f1229156f [2021-12-06 22:39:14,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:39:14,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:39:14,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:39:14,773 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:39:14,774 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:39:14,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2021-12-06 22:39:14,822 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/data/eb2f56363/8782873688814342b55878bb03930294/FLAG080bd04eb [2021-12-06 22:39:15,278 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:39:15,279 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2021-12-06 22:39:15,293 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/data/eb2f56363/8782873688814342b55878bb03930294/FLAG080bd04eb [2021-12-06 22:39:15,599 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/data/eb2f56363/8782873688814342b55878bb03930294 [2021-12-06 22:39:15,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:39:15,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:39:15,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:39:15,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:39:15,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:39:15,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:39:15" (1/1) ... [2021-12-06 22:39:15,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c1dc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:39:15, skipping insertion in model container [2021-12-06 22:39:15,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:39:15" (1/1) ... [2021-12-06 22:39:15,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:39:15,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:39:15,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:39:15,945 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:39:15,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:39:16,040 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:39:16,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:39:16 WrapperNode [2021-12-06 22:39:16,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:39:16,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:39:16,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:39:16,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:39:16,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:39:16" (1/1) ... [2021-12-06 22:39:16,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:39:16" (1/1) ... [2021-12-06 22:39:16,091 INFO L137 Inliner]: procedures = 262, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2021-12-06 22:39:16,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:39:16,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:39:16,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:39:16,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:39:16,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:39:16" (1/1) ... [2021-12-06 22:39:16,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:39:16" (1/1) ... [2021-12-06 22:39:16,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:39:16" (1/1) ... [2021-12-06 22:39:16,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:39:16" (1/1) ... [2021-12-06 22:39:16,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:39:16" (1/1) ... [2021-12-06 22:39:16,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:39:16" (1/1) ... [2021-12-06 22:39:16,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:39:16" (1/1) ... [2021-12-06 22:39:16,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:39:16,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:39:16,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:39:16,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:39:16,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:39:16" (1/1) ... [2021-12-06 22:39:16,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:39:16,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:39:16,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:39:16,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:39:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:39:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:39:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:39:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:39:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-06 22:39:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:39:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-06 22:39:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-06 22:39:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:39:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:39:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:39:16,188 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 22:39:16,286 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:39:16,287 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:39:16,457 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:39:16,465 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:39:16,465 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 22:39:16,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:39:16 BoogieIcfgContainer [2021-12-06 22:39:16,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:39:16,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:39:16,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:39:16,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:39:16,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:39:15" (1/3) ... [2021-12-06 22:39:16,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ee5656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:39:16, skipping insertion in model container [2021-12-06 22:39:16,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:39:16" (2/3) ... [2021-12-06 22:39:16,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ee5656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:39:16, skipping insertion in model container [2021-12-06 22:39:16,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:39:16" (3/3) ... [2021-12-06 22:39:16,475 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2021-12-06 22:39:16,479 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 22:39:16,479 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:39:16,479 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-12-06 22:39:16,479 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 22:39:16,503 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,503 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,503 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,504 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,504 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,504 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,504 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,504 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,504 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,505 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,505 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,505 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,505 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,505 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,505 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,506 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,506 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,506 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,506 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,506 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,507 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,507 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,507 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,507 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,508 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,508 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,508 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,508 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,508 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,508 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,509 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,509 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,509 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,509 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,509 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,510 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,510 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,510 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,510 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,510 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,510 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,511 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,511 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,511 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,511 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,511 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,512 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,516 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,517 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,517 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,517 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,517 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,518 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,518 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,518 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,518 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,518 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,518 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,518 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,518 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,519 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,519 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,519 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,519 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,519 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,519 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,519 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,519 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,520 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,520 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,520 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,520 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,520 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,520 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,520 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,520 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,520 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,521 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,521 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,521 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,521 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,521 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,522 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,522 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,522 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,522 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,522 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,522 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,523 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,523 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,523 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,524 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,526 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,527 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,527 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,527 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,527 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,527 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,527 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,527 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,527 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,528 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:39:16,531 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-06 22:39:16,566 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:39:16,571 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 22:39:16,571 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-06 22:39:16,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 98 transitions, 204 flow [2021-12-06 22:39:16,611 INFO L129 PetriNetUnfolder]: 0/97 cut-off events. [2021-12-06 22:39:16,611 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 22:39:16,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 97 events. 0/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-12-06 22:39:16,613 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 98 transitions, 204 flow [2021-12-06 22:39:16,616 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 87 transitions, 177 flow [2021-12-06 22:39:16,625 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-12-06 22:39:16,625 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 22:39:16,626 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:16,626 INFO L254 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] [2021-12-06 22:39:16,626 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:16,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:16,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1564629170, now seen corresponding path program 1 times [2021-12-06 22:39:16,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:16,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444489454] [2021-12-06 22:39:16,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:16,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:16,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:16,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:16,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444489454] [2021-12-06 22:39:16,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444489454] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:16,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:16,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:39:16,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683028896] [2021-12-06 22:39:16,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:16,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:39:16,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:16,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:39:16,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:39:16,910 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 98 [2021-12-06 22:39:16,914 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 87 transitions, 177 flow. Second operand has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:16,914 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:16,914 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 98 [2021-12-06 22:39:16,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:17,248 INFO L129 PetriNetUnfolder]: 263/775 cut-off events. [2021-12-06 22:39:17,248 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 22:39:17,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 775 events. 263/775 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4103 event pairs, 158 based on Foata normal form. 0/694 useless extension candidates. Maximal degree in co-relation 1309. Up to 436 conditions per place. [2021-12-06 22:39:17,256 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 67 selfloop transitions, 22 changer transitions 0/141 dead transitions. [2021-12-06 22:39:17,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 141 transitions, 463 flow [2021-12-06 22:39:17,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:39:17,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 22:39:17,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 450 transitions. [2021-12-06 22:39:17,270 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7653061224489796 [2021-12-06 22:39:17,271 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 450 transitions. [2021-12-06 22:39:17,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 450 transitions. [2021-12-06 22:39:17,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:17,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 450 transitions. [2021-12-06 22:39:17,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:17,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:17,287 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:17,288 INFO L186 Difference]: Start difference. First operand has 91 places, 87 transitions, 177 flow. Second operand 6 states and 450 transitions. [2021-12-06 22:39:17,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 141 transitions, 463 flow [2021-12-06 22:39:17,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 141 transitions, 462 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 22:39:17,295 INFO L242 Difference]: Finished difference. Result has 100 places, 108 transitions, 326 flow [2021-12-06 22:39:17,297 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=326, PETRI_PLACES=100, PETRI_TRANSITIONS=108} [2021-12-06 22:39:17,299 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 9 predicate places. [2021-12-06 22:39:17,300 INFO L470 AbstractCegarLoop]: Abstraction has has 100 places, 108 transitions, 326 flow [2021-12-06 22:39:17,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:17,300 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:17,300 INFO L254 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] [2021-12-06 22:39:17,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 22:39:17,301 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:17,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:17,301 INFO L85 PathProgramCache]: Analyzing trace with hash 224927057, now seen corresponding path program 1 times [2021-12-06 22:39:17,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:17,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332913617] [2021-12-06 22:39:17,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:17,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:17,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:17,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:17,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332913617] [2021-12-06 22:39:17,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332913617] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:17,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:17,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:39:17,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935722570] [2021-12-06 22:39:17,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:17,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:39:17,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:17,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:39:17,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:39:17,421 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 98 [2021-12-06 22:39:17,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 108 transitions, 326 flow. Second operand has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:17,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:17,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 98 [2021-12-06 22:39:17,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:17,700 INFO L129 PetriNetUnfolder]: 345/996 cut-off events. [2021-12-06 22:39:17,700 INFO L130 PetriNetUnfolder]: For 273/281 co-relation queries the response was YES. [2021-12-06 22:39:17,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2069 conditions, 996 events. 345/996 cut-off events. For 273/281 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 5763 event pairs, 126 based on Foata normal form. 0/907 useless extension candidates. Maximal degree in co-relation 2029. Up to 538 conditions per place. [2021-12-06 22:39:17,709 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 103 selfloop transitions, 26 changer transitions 0/182 dead transitions. [2021-12-06 22:39:17,709 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 182 transitions, 822 flow [2021-12-06 22:39:17,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:39:17,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 22:39:17,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 487 transitions. [2021-12-06 22:39:17,713 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8282312925170068 [2021-12-06 22:39:17,713 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 487 transitions. [2021-12-06 22:39:17,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 487 transitions. [2021-12-06 22:39:17,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:17,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 487 transitions. [2021-12-06 22:39:17,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:17,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:17,720 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:17,721 INFO L186 Difference]: Start difference. First operand has 100 places, 108 transitions, 326 flow. Second operand 6 states and 487 transitions. [2021-12-06 22:39:17,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 182 transitions, 822 flow [2021-12-06 22:39:17,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 182 transitions, 822 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:39:17,729 INFO L242 Difference]: Finished difference. Result has 110 places, 129 transitions, 510 flow [2021-12-06 22:39:17,729 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=510, PETRI_PLACES=110, PETRI_TRANSITIONS=129} [2021-12-06 22:39:17,730 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 19 predicate places. [2021-12-06 22:39:17,730 INFO L470 AbstractCegarLoop]: Abstraction has has 110 places, 129 transitions, 510 flow [2021-12-06 22:39:17,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:17,731 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:17,731 INFO L254 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] [2021-12-06 22:39:17,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 22:39:17,731 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:17,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:17,732 INFO L85 PathProgramCache]: Analyzing trace with hash -828286250, now seen corresponding path program 1 times [2021-12-06 22:39:17,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:17,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887080421] [2021-12-06 22:39:17,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:17,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:17,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:17,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:17,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887080421] [2021-12-06 22:39:17,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887080421] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:17,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:17,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:39:17,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753892474] [2021-12-06 22:39:17,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:17,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:39:17,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:17,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:39:17,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:39:17,850 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 98 [2021-12-06 22:39:17,851 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 129 transitions, 510 flow. Second operand has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:17,851 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:17,851 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 98 [2021-12-06 22:39:17,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:18,220 INFO L129 PetriNetUnfolder]: 485/1316 cut-off events. [2021-12-06 22:39:18,220 INFO L130 PetriNetUnfolder]: For 777/790 co-relation queries the response was YES. [2021-12-06 22:39:18,223 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3237 conditions, 1316 events. 485/1316 cut-off events. For 777/790 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 7854 event pairs, 179 based on Foata normal form. 4/1224 useless extension candidates. Maximal degree in co-relation 3192. Up to 860 conditions per place. [2021-12-06 22:39:18,229 INFO L132 encePairwiseOnDemand]: 79/98 looper letters, 93 selfloop transitions, 69 changer transitions 4/217 dead transitions. [2021-12-06 22:39:18,229 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 217 transitions, 1170 flow [2021-12-06 22:39:18,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:39:18,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 22:39:18,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 480 transitions. [2021-12-06 22:39:18,231 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8163265306122449 [2021-12-06 22:39:18,231 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 480 transitions. [2021-12-06 22:39:18,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 480 transitions. [2021-12-06 22:39:18,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:18,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 480 transitions. [2021-12-06 22:39:18,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:18,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:18,235 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:18,235 INFO L186 Difference]: Start difference. First operand has 110 places, 129 transitions, 510 flow. Second operand 6 states and 480 transitions. [2021-12-06 22:39:18,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 217 transitions, 1170 flow [2021-12-06 22:39:18,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 217 transitions, 1170 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:39:18,246 INFO L242 Difference]: Finished difference. Result has 120 places, 192 transitions, 1088 flow [2021-12-06 22:39:18,247 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1088, PETRI_PLACES=120, PETRI_TRANSITIONS=192} [2021-12-06 22:39:18,247 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 29 predicate places. [2021-12-06 22:39:18,248 INFO L470 AbstractCegarLoop]: Abstraction has has 120 places, 192 transitions, 1088 flow [2021-12-06 22:39:18,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:18,248 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:18,248 INFO L254 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] [2021-12-06 22:39:18,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 22:39:18,249 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:18,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:18,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1780684220, now seen corresponding path program 1 times [2021-12-06 22:39:18,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:18,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291921020] [2021-12-06 22:39:18,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:18,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:18,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:18,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:18,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291921020] [2021-12-06 22:39:18,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291921020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:18,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:18,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:39:18,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642399117] [2021-12-06 22:39:18,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:18,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:39:18,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:18,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:39:18,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:39:18,345 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 98 [2021-12-06 22:39:18,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 192 transitions, 1088 flow. Second operand has 6 states, 6 states have (on average 60.666666666666664) internal successors, (364), 6 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:18,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:18,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 98 [2021-12-06 22:39:18,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:18,662 INFO L129 PetriNetUnfolder]: 525/1408 cut-off events. [2021-12-06 22:39:18,662 INFO L130 PetriNetUnfolder]: For 1805/1821 co-relation queries the response was YES. [2021-12-06 22:39:18,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4444 conditions, 1408 events. 525/1408 cut-off events. For 1805/1821 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 8713 event pairs, 135 based on Foata normal form. 0/1353 useless extension candidates. Maximal degree in co-relation 4392. Up to 955 conditions per place. [2021-12-06 22:39:18,674 INFO L132 encePairwiseOnDemand]: 83/98 looper letters, 145 selfloop transitions, 67 changer transitions 0/263 dead transitions. [2021-12-06 22:39:18,674 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 263 transitions, 1938 flow [2021-12-06 22:39:18,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:39:18,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 22:39:18,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 439 transitions. [2021-12-06 22:39:18,676 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7465986394557823 [2021-12-06 22:39:18,676 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 439 transitions. [2021-12-06 22:39:18,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 439 transitions. [2021-12-06 22:39:18,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:18,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 439 transitions. [2021-12-06 22:39:18,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:18,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:18,680 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:18,680 INFO L186 Difference]: Start difference. First operand has 120 places, 192 transitions, 1088 flow. Second operand 6 states and 439 transitions. [2021-12-06 22:39:18,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 263 transitions, 1938 flow [2021-12-06 22:39:18,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 263 transitions, 1882 flow, removed 28 selfloop flow, removed 0 redundant places. [2021-12-06 22:39:18,696 INFO L242 Difference]: Finished difference. Result has 130 places, 245 transitions, 1692 flow [2021-12-06 22:39:18,696 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1692, PETRI_PLACES=130, PETRI_TRANSITIONS=245} [2021-12-06 22:39:18,697 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 39 predicate places. [2021-12-06 22:39:18,697 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 245 transitions, 1692 flow [2021-12-06 22:39:18,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.666666666666664) internal successors, (364), 6 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:18,698 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:18,698 INFO L254 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] [2021-12-06 22:39:18,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 22:39:18,698 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:18,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:18,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1980902750, now seen corresponding path program 1 times [2021-12-06 22:39:18,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:18,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132203805] [2021-12-06 22:39:18,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:18,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:18,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:18,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:18,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132203805] [2021-12-06 22:39:18,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132203805] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:18,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:18,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 22:39:18,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932153749] [2021-12-06 22:39:18,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:18,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:39:18,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:18,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:39:18,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:39:18,745 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 98 [2021-12-06 22:39:18,746 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 245 transitions, 1692 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:18,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:18,746 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 98 [2021-12-06 22:39:18,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:18,789 INFO L129 PetriNetUnfolder]: 40/237 cut-off events. [2021-12-06 22:39:18,789 INFO L130 PetriNetUnfolder]: For 198/198 co-relation queries the response was YES. [2021-12-06 22:39:18,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 615 conditions, 237 events. 40/237 cut-off events. For 198/198 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 672 event pairs, 5 based on Foata normal form. 2/227 useless extension candidates. Maximal degree in co-relation 554. Up to 64 conditions per place. [2021-12-06 22:39:18,791 INFO L132 encePairwiseOnDemand]: 94/98 looper letters, 7 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2021-12-06 22:39:18,792 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 105 transitions, 468 flow [2021-12-06 22:39:18,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:39:18,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 22:39:18,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2021-12-06 22:39:18,793 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9217687074829932 [2021-12-06 22:39:18,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2021-12-06 22:39:18,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2021-12-06 22:39:18,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:18,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2021-12-06 22:39:18,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:18,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:18,796 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:18,796 INFO L186 Difference]: Start difference. First operand has 130 places, 245 transitions, 1692 flow. Second operand 3 states and 271 transitions. [2021-12-06 22:39:18,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 105 transitions, 468 flow [2021-12-06 22:39:18,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 105 transitions, 342 flow, removed 33 selfloop flow, removed 30 redundant places. [2021-12-06 22:39:18,802 INFO L242 Difference]: Finished difference. Result has 99 places, 105 transitions, 328 flow [2021-12-06 22:39:18,802 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=99, PETRI_TRANSITIONS=105} [2021-12-06 22:39:18,803 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 8 predicate places. [2021-12-06 22:39:18,803 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 105 transitions, 328 flow [2021-12-06 22:39:18,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:18,803 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:18,803 INFO L254 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] [2021-12-06 22:39:18,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 22:39:18,804 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:18,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:18,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1508918510, now seen corresponding path program 1 times [2021-12-06 22:39:18,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:18,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833113768] [2021-12-06 22:39:18,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:18,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:18,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:18,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:18,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833113768] [2021-12-06 22:39:18,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833113768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:18,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:18,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:39:18,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889793381] [2021-12-06 22:39:18,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:18,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:39:18,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:18,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:39:18,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:39:18,896 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 98 [2021-12-06 22:39:18,896 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 105 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 6 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:18,897 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:18,897 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 98 [2021-12-06 22:39:18,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:19,080 INFO L129 PetriNetUnfolder]: 119/427 cut-off events. [2021-12-06 22:39:19,080 INFO L130 PetriNetUnfolder]: For 125/129 co-relation queries the response was YES. [2021-12-06 22:39:19,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1049 conditions, 427 events. 119/427 cut-off events. For 125/129 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1693 event pairs, 17 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 1005. Up to 187 conditions per place. [2021-12-06 22:39:19,082 INFO L132 encePairwiseOnDemand]: 88/98 looper letters, 71 selfloop transitions, 25 changer transitions 11/160 dead transitions. [2021-12-06 22:39:19,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 160 transitions, 748 flow [2021-12-06 22:39:19,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:39:19,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 22:39:19,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 441 transitions. [2021-12-06 22:39:19,084 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-12-06 22:39:19,084 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 441 transitions. [2021-12-06 22:39:19,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 441 transitions. [2021-12-06 22:39:19,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:19,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 441 transitions. [2021-12-06 22:39:19,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:19,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:19,087 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:19,087 INFO L186 Difference]: Start difference. First operand has 99 places, 105 transitions, 328 flow. Second operand 6 states and 441 transitions. [2021-12-06 22:39:19,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 160 transitions, 748 flow [2021-12-06 22:39:19,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 160 transitions, 744 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 22:39:19,091 INFO L242 Difference]: Finished difference. Result has 108 places, 125 transitions, 540 flow [2021-12-06 22:39:19,091 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=540, PETRI_PLACES=108, PETRI_TRANSITIONS=125} [2021-12-06 22:39:19,092 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 17 predicate places. [2021-12-06 22:39:19,092 INFO L470 AbstractCegarLoop]: Abstraction has has 108 places, 125 transitions, 540 flow [2021-12-06 22:39:19,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 6 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:19,092 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:19,093 INFO L254 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] [2021-12-06 22:39:19,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 22:39:19,093 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:19,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:19,093 INFO L85 PathProgramCache]: Analyzing trace with hash 410184276, now seen corresponding path program 1 times [2021-12-06 22:39:19,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:19,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751911197] [2021-12-06 22:39:19,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:19,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:19,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:19,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:19,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751911197] [2021-12-06 22:39:19,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751911197] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:19,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:19,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 22:39:19,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922485953] [2021-12-06 22:39:19,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:19,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 22:39:19,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:19,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 22:39:19,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-12-06 22:39:19,275 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 98 [2021-12-06 22:39:19,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 125 transitions, 540 flow. Second operand has 13 states, 13 states have (on average 49.76923076923077) internal successors, (647), 13 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:19,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:19,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 98 [2021-12-06 22:39:19,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:19,580 INFO L129 PetriNetUnfolder]: 166/528 cut-off events. [2021-12-06 22:39:19,581 INFO L130 PetriNetUnfolder]: For 300/308 co-relation queries the response was YES. [2021-12-06 22:39:19,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1580 conditions, 528 events. 166/528 cut-off events. For 300/308 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2074 event pairs, 52 based on Foata normal form. 11/536 useless extension candidates. Maximal degree in co-relation 1528. Up to 201 conditions per place. [2021-12-06 22:39:19,587 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 111 selfloop transitions, 30 changer transitions 17/199 dead transitions. [2021-12-06 22:39:19,587 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 199 transitions, 1202 flow [2021-12-06 22:39:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:39:19,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:39:19,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 624 transitions. [2021-12-06 22:39:19,590 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5788497217068646 [2021-12-06 22:39:19,590 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 624 transitions. [2021-12-06 22:39:19,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 624 transitions. [2021-12-06 22:39:19,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:19,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 624 transitions. [2021-12-06 22:39:19,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 56.72727272727273) internal successors, (624), 11 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:19,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:19,594 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:19,594 INFO L186 Difference]: Start difference. First operand has 108 places, 125 transitions, 540 flow. Second operand 11 states and 624 transitions. [2021-12-06 22:39:19,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 199 transitions, 1202 flow [2021-12-06 22:39:19,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 199 transitions, 1184 flow, removed 9 selfloop flow, removed 0 redundant places. [2021-12-06 22:39:19,600 INFO L242 Difference]: Finished difference. Result has 117 places, 121 transitions, 558 flow [2021-12-06 22:39:19,600 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=558, PETRI_PLACES=117, PETRI_TRANSITIONS=121} [2021-12-06 22:39:19,601 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 26 predicate places. [2021-12-06 22:39:19,601 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 121 transitions, 558 flow [2021-12-06 22:39:19,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 49.76923076923077) internal successors, (647), 13 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:19,601 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:19,602 INFO L254 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] [2021-12-06 22:39:19,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 22:39:19,602 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:19,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:19,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1624753430, now seen corresponding path program 1 times [2021-12-06 22:39:19,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:19,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772750105] [2021-12-06 22:39:19,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:19,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:19,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:19,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:19,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772750105] [2021-12-06 22:39:19,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772750105] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:19,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:19,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 22:39:19,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406767055] [2021-12-06 22:39:19,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:19,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 22:39:19,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:19,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 22:39:19,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-06 22:39:19,757 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2021-12-06 22:39:19,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 121 transitions, 558 flow. Second operand has 12 states, 12 states have (on average 51.916666666666664) internal successors, (623), 12 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:19,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:19,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2021-12-06 22:39:19,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:20,103 INFO L129 PetriNetUnfolder]: 174/575 cut-off events. [2021-12-06 22:39:20,103 INFO L130 PetriNetUnfolder]: For 604/604 co-relation queries the response was YES. [2021-12-06 22:39:20,104 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1837 conditions, 575 events. 174/575 cut-off events. For 604/604 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2518 event pairs, 4 based on Foata normal form. 10/585 useless extension candidates. Maximal degree in co-relation 1781. Up to 221 conditions per place. [2021-12-06 22:39:20,106 INFO L132 encePairwiseOnDemand]: 88/98 looper letters, 76 selfloop transitions, 5 changer transitions 111/236 dead transitions. [2021-12-06 22:39:20,106 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 236 transitions, 1530 flow [2021-12-06 22:39:20,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:39:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:39:20,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 664 transitions. [2021-12-06 22:39:20,108 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6159554730983302 [2021-12-06 22:39:20,108 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 664 transitions. [2021-12-06 22:39:20,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 664 transitions. [2021-12-06 22:39:20,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:20,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 664 transitions. [2021-12-06 22:39:20,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 60.36363636363637) internal successors, (664), 11 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:20,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:20,112 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:20,112 INFO L186 Difference]: Start difference. First operand has 117 places, 121 transitions, 558 flow. Second operand 11 states and 664 transitions. [2021-12-06 22:39:20,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 236 transitions, 1530 flow [2021-12-06 22:39:20,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 236 transitions, 1348 flow, removed 21 selfloop flow, removed 11 redundant places. [2021-12-06 22:39:20,119 INFO L242 Difference]: Finished difference. Result has 120 places, 105 transitions, 416 flow [2021-12-06 22:39:20,119 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=416, PETRI_PLACES=120, PETRI_TRANSITIONS=105} [2021-12-06 22:39:20,120 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 29 predicate places. [2021-12-06 22:39:20,120 INFO L470 AbstractCegarLoop]: Abstraction has has 120 places, 105 transitions, 416 flow [2021-12-06 22:39:20,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 51.916666666666664) internal successors, (623), 12 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:20,120 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:20,120 INFO L254 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] [2021-12-06 22:39:20,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 22:39:20,121 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:20,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:20,121 INFO L85 PathProgramCache]: Analyzing trace with hash -505067894, now seen corresponding path program 2 times [2021-12-06 22:39:20,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:20,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736302745] [2021-12-06 22:39:20,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:20,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:20,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:20,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:20,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736302745] [2021-12-06 22:39:20,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736302745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:20,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:20,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 22:39:20,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136455523] [2021-12-06 22:39:20,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:20,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 22:39:20,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:20,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 22:39:20,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-12-06 22:39:20,329 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2021-12-06 22:39:20,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 105 transitions, 416 flow. Second operand has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:20,329 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:20,329 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2021-12-06 22:39:20,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:20,705 INFO L129 PetriNetUnfolder]: 96/363 cut-off events. [2021-12-06 22:39:20,705 INFO L130 PetriNetUnfolder]: For 340/340 co-relation queries the response was YES. [2021-12-06 22:39:20,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 363 events. 96/363 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1062 event pairs, 37 based on Foata normal form. 5/365 useless extension candidates. Maximal degree in co-relation 960. Up to 174 conditions per place. [2021-12-06 22:39:20,707 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 77 selfloop transitions, 11 changer transitions 22/154 dead transitions. [2021-12-06 22:39:20,707 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 154 transitions, 784 flow [2021-12-06 22:39:20,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:39:20,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:39:20,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 634 transitions. [2021-12-06 22:39:20,710 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.588126159554731 [2021-12-06 22:39:20,710 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 634 transitions. [2021-12-06 22:39:20,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 634 transitions. [2021-12-06 22:39:20,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:20,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 634 transitions. [2021-12-06 22:39:20,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 57.63636363636363) internal successors, (634), 11 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:20,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:20,716 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:20,716 INFO L186 Difference]: Start difference. First operand has 120 places, 105 transitions, 416 flow. Second operand 11 states and 634 transitions. [2021-12-06 22:39:20,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 154 transitions, 784 flow [2021-12-06 22:39:20,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 154 transitions, 710 flow, removed 23 selfloop flow, removed 10 redundant places. [2021-12-06 22:39:20,722 INFO L242 Difference]: Finished difference. Result has 119 places, 105 transitions, 386 flow [2021-12-06 22:39:20,722 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=386, PETRI_PLACES=119, PETRI_TRANSITIONS=105} [2021-12-06 22:39:20,723 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 28 predicate places. [2021-12-06 22:39:20,723 INFO L470 AbstractCegarLoop]: Abstraction has has 119 places, 105 transitions, 386 flow [2021-12-06 22:39:20,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:20,724 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:20,724 INFO L254 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] [2021-12-06 22:39:20,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 22:39:20,724 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:20,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:20,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1646723058, now seen corresponding path program 3 times [2021-12-06 22:39:20,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:20,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359683668] [2021-12-06 22:39:20,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:20,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:20,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:20,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359683668] [2021-12-06 22:39:20,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359683668] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:20,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:20,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 22:39:20,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895298405] [2021-12-06 22:39:20,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:20,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 22:39:20,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:20,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 22:39:20,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 22:39:20,900 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2021-12-06 22:39:20,901 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 105 transitions, 386 flow. Second operand has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:20,901 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:20,901 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2021-12-06 22:39:20,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:21,277 INFO L129 PetriNetUnfolder]: 185/620 cut-off events. [2021-12-06 22:39:21,277 INFO L130 PetriNetUnfolder]: For 684/684 co-relation queries the response was YES. [2021-12-06 22:39:21,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1850 conditions, 620 events. 185/620 cut-off events. For 684/684 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2824 event pairs, 16 based on Foata normal form. 10/627 useless extension candidates. Maximal degree in co-relation 1791. Up to 222 conditions per place. [2021-12-06 22:39:21,280 INFO L132 encePairwiseOnDemand]: 88/98 looper letters, 106 selfloop transitions, 6 changer transitions 68/224 dead transitions. [2021-12-06 22:39:21,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 224 transitions, 1346 flow [2021-12-06 22:39:21,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:39:21,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:39:21,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 654 transitions. [2021-12-06 22:39:21,283 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6066790352504638 [2021-12-06 22:39:21,283 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 654 transitions. [2021-12-06 22:39:21,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 654 transitions. [2021-12-06 22:39:21,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:21,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 654 transitions. [2021-12-06 22:39:21,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 59.45454545454545) internal successors, (654), 11 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:21,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:21,287 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:21,287 INFO L186 Difference]: Start difference. First operand has 119 places, 105 transitions, 386 flow. Second operand 11 states and 654 transitions. [2021-12-06 22:39:21,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 224 transitions, 1346 flow [2021-12-06 22:39:21,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 224 transitions, 1278 flow, removed 4 selfloop flow, removed 10 redundant places. [2021-12-06 22:39:21,293 INFO L242 Difference]: Finished difference. Result has 123 places, 107 transitions, 429 flow [2021-12-06 22:39:21,293 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=429, PETRI_PLACES=123, PETRI_TRANSITIONS=107} [2021-12-06 22:39:21,294 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 32 predicate places. [2021-12-06 22:39:21,294 INFO L470 AbstractCegarLoop]: Abstraction has has 123 places, 107 transitions, 429 flow [2021-12-06 22:39:21,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:21,294 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:21,294 INFO L254 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] [2021-12-06 22:39:21,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 22:39:21,295 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:21,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:21,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1551887416, now seen corresponding path program 4 times [2021-12-06 22:39:21,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:21,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508313249] [2021-12-06 22:39:21,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:21,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:21,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:21,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:21,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508313249] [2021-12-06 22:39:21,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508313249] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:21,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:21,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 22:39:21,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588437236] [2021-12-06 22:39:21,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:21,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 22:39:21,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:21,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 22:39:21,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-12-06 22:39:21,481 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2021-12-06 22:39:21,482 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 107 transitions, 429 flow. Second operand has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:21,482 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:21,482 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2021-12-06 22:39:21,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:21,874 INFO L129 PetriNetUnfolder]: 149/555 cut-off events. [2021-12-06 22:39:21,874 INFO L130 PetriNetUnfolder]: For 697/697 co-relation queries the response was YES. [2021-12-06 22:39:21,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1685 conditions, 555 events. 149/555 cut-off events. For 697/697 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2379 event pairs, 41 based on Foata normal form. 10/562 useless extension candidates. Maximal degree in co-relation 1622. Up to 237 conditions per place. [2021-12-06 22:39:21,877 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 79 selfloop transitions, 12 changer transitions 47/182 dead transitions. [2021-12-06 22:39:21,877 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 182 transitions, 1019 flow [2021-12-06 22:39:21,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 22:39:21,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-06 22:39:21,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 746 transitions. [2021-12-06 22:39:21,879 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5855572998430141 [2021-12-06 22:39:21,879 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 746 transitions. [2021-12-06 22:39:21,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 746 transitions. [2021-12-06 22:39:21,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:21,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 746 transitions. [2021-12-06 22:39:21,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 57.38461538461539) internal successors, (746), 13 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:21,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:21,883 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:21,883 INFO L186 Difference]: Start difference. First operand has 123 places, 107 transitions, 429 flow. Second operand 13 states and 746 transitions. [2021-12-06 22:39:21,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 182 transitions, 1019 flow [2021-12-06 22:39:21,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 182 transitions, 969 flow, removed 20 selfloop flow, removed 7 redundant places. [2021-12-06 22:39:21,889 INFO L242 Difference]: Finished difference. Result has 130 places, 107 transitions, 441 flow [2021-12-06 22:39:21,890 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=441, PETRI_PLACES=130, PETRI_TRANSITIONS=107} [2021-12-06 22:39:21,890 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 39 predicate places. [2021-12-06 22:39:21,890 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 107 transitions, 441 flow [2021-12-06 22:39:21,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:21,891 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:21,891 INFO L254 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] [2021-12-06 22:39:21,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 22:39:21,891 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:21,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:21,891 INFO L85 PathProgramCache]: Analyzing trace with hash -754388078, now seen corresponding path program 5 times [2021-12-06 22:39:21,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:21,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791860202] [2021-12-06 22:39:21,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:21,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:22,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:22,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:22,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791860202] [2021-12-06 22:39:22,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791860202] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:22,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:22,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 22:39:22,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202895045] [2021-12-06 22:39:22,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:22,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 22:39:22,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:22,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 22:39:22,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-12-06 22:39:22,044 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2021-12-06 22:39:22,045 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 107 transitions, 441 flow. Second operand has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:22,045 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:22,045 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2021-12-06 22:39:22,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:22,343 INFO L129 PetriNetUnfolder]: 147/557 cut-off events. [2021-12-06 22:39:22,343 INFO L130 PetriNetUnfolder]: For 925/925 co-relation queries the response was YES. [2021-12-06 22:39:22,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1764 conditions, 557 events. 147/557 cut-off events. For 925/925 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2377 event pairs, 44 based on Foata normal form. 10/564 useless extension candidates. Maximal degree in co-relation 1699. Up to 226 conditions per place. [2021-12-06 22:39:22,346 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 97 selfloop transitions, 7 changer transitions 56/204 dead transitions. [2021-12-06 22:39:22,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 204 transitions, 1256 flow [2021-12-06 22:39:22,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:39:22,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:39:22,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 649 transitions. [2021-12-06 22:39:22,348 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6020408163265306 [2021-12-06 22:39:22,349 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 649 transitions. [2021-12-06 22:39:22,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 649 transitions. [2021-12-06 22:39:22,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:22,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 649 transitions. [2021-12-06 22:39:22,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 59.0) internal successors, (649), 11 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:22,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:22,352 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:22,352 INFO L186 Difference]: Start difference. First operand has 130 places, 107 transitions, 441 flow. Second operand 11 states and 649 transitions. [2021-12-06 22:39:22,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 204 transitions, 1256 flow [2021-12-06 22:39:22,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 204 transitions, 1164 flow, removed 19 selfloop flow, removed 12 redundant places. [2021-12-06 22:39:22,359 INFO L242 Difference]: Finished difference. Result has 128 places, 108 transitions, 456 flow [2021-12-06 22:39:22,359 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=456, PETRI_PLACES=128, PETRI_TRANSITIONS=108} [2021-12-06 22:39:22,359 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 37 predicate places. [2021-12-06 22:39:22,359 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 108 transitions, 456 flow [2021-12-06 22:39:22,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:22,360 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:22,360 INFO L254 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] [2021-12-06 22:39:22,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 22:39:22,360 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:22,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:22,360 INFO L85 PathProgramCache]: Analyzing trace with hash -860544694, now seen corresponding path program 6 times [2021-12-06 22:39:22,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:22,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112113849] [2021-12-06 22:39:22,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:22,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:22,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:22,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:22,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112113849] [2021-12-06 22:39:22,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112113849] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:22,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:22,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 22:39:22,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213949084] [2021-12-06 22:39:22,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:22,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 22:39:22,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:22,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 22:39:22,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-12-06 22:39:22,498 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2021-12-06 22:39:22,499 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 108 transitions, 456 flow. Second operand has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:22,499 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:22,499 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2021-12-06 22:39:22,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:22,836 INFO L129 PetriNetUnfolder]: 168/648 cut-off events. [2021-12-06 22:39:22,836 INFO L130 PetriNetUnfolder]: For 1140/1140 co-relation queries the response was YES. [2021-12-06 22:39:22,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2048 conditions, 648 events. 168/648 cut-off events. For 1140/1140 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3056 event pairs, 67 based on Foata normal form. 10/654 useless extension candidates. Maximal degree in co-relation 1983. Up to 217 conditions per place. [2021-12-06 22:39:22,840 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 88 selfloop transitions, 13 changer transitions 53/198 dead transitions. [2021-12-06 22:39:22,840 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 198 transitions, 1228 flow [2021-12-06 22:39:22,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:39:22,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:39:22,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 644 transitions. [2021-12-06 22:39:22,843 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5974025974025974 [2021-12-06 22:39:22,843 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 644 transitions. [2021-12-06 22:39:22,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 644 transitions. [2021-12-06 22:39:22,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:22,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 644 transitions. [2021-12-06 22:39:22,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 58.54545454545455) internal successors, (644), 11 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:22,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:22,848 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:22,848 INFO L186 Difference]: Start difference. First operand has 128 places, 108 transitions, 456 flow. Second operand 11 states and 644 transitions. [2021-12-06 22:39:22,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 198 transitions, 1228 flow [2021-12-06 22:39:22,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 198 transitions, 1156 flow, removed 28 selfloop flow, removed 9 redundant places. [2021-12-06 22:39:22,863 INFO L242 Difference]: Finished difference. Result has 132 places, 112 transitions, 517 flow [2021-12-06 22:39:22,864 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=517, PETRI_PLACES=132, PETRI_TRANSITIONS=112} [2021-12-06 22:39:22,864 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 41 predicate places. [2021-12-06 22:39:22,864 INFO L470 AbstractCegarLoop]: Abstraction has has 132 places, 112 transitions, 517 flow [2021-12-06 22:39:22,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:22,865 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:22,865 INFO L254 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] [2021-12-06 22:39:22,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 22:39:22,865 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:22,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:22,866 INFO L85 PathProgramCache]: Analyzing trace with hash -966417998, now seen corresponding path program 7 times [2021-12-06 22:39:22,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:22,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735172129] [2021-12-06 22:39:22,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:22,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:23,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:23,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:23,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735172129] [2021-12-06 22:39:23,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735172129] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:23,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:23,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 22:39:23,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518077264] [2021-12-06 22:39:23,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:23,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 22:39:23,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:23,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 22:39:23,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 22:39:23,048 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2021-12-06 22:39:23,049 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 112 transitions, 517 flow. Second operand has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:23,049 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:23,049 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2021-12-06 22:39:23,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:23,418 INFO L129 PetriNetUnfolder]: 129/524 cut-off events. [2021-12-06 22:39:23,418 INFO L130 PetriNetUnfolder]: For 1009/1009 co-relation queries the response was YES. [2021-12-06 22:39:23,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1689 conditions, 524 events. 129/524 cut-off events. For 1009/1009 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2155 event pairs, 60 based on Foata normal form. 10/530 useless extension candidates. Maximal degree in co-relation 1622. Up to 298 conditions per place. [2021-12-06 22:39:23,422 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 61 selfloop transitions, 5 changer transitions 64/174 dead transitions. [2021-12-06 22:39:23,422 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 174 transitions, 1075 flow [2021-12-06 22:39:23,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 22:39:23,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 22:39:23,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 684 transitions. [2021-12-06 22:39:23,424 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5816326530612245 [2021-12-06 22:39:23,424 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 684 transitions. [2021-12-06 22:39:23,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 684 transitions. [2021-12-06 22:39:23,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:23,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 684 transitions. [2021-12-06 22:39:23,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 57.0) internal successors, (684), 12 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:23,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 98.0) internal successors, (1274), 13 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:23,429 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 98.0) internal successors, (1274), 13 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:23,429 INFO L186 Difference]: Start difference. First operand has 132 places, 112 transitions, 517 flow. Second operand 12 states and 684 transitions. [2021-12-06 22:39:23,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 174 transitions, 1075 flow [2021-12-06 22:39:23,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 174 transitions, 1022 flow, removed 16 selfloop flow, removed 7 redundant places. [2021-12-06 22:39:23,438 INFO L242 Difference]: Finished difference. Result has 138 places, 109 transitions, 483 flow [2021-12-06 22:39:23,438 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=483, PETRI_PLACES=138, PETRI_TRANSITIONS=109} [2021-12-06 22:39:23,438 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 47 predicate places. [2021-12-06 22:39:23,439 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 109 transitions, 483 flow [2021-12-06 22:39:23,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:23,439 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:23,439 INFO L254 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] [2021-12-06 22:39:23,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 22:39:23,440 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:23,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:23,440 INFO L85 PathProgramCache]: Analyzing trace with hash -414724024, now seen corresponding path program 8 times [2021-12-06 22:39:23,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:23,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858775089] [2021-12-06 22:39:23,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:23,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:23,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:23,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:23,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858775089] [2021-12-06 22:39:23,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858775089] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:23,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:23,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 22:39:23,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039726970] [2021-12-06 22:39:23,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:23,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 22:39:23,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:23,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 22:39:23,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-12-06 22:39:23,595 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2021-12-06 22:39:23,596 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 109 transitions, 483 flow. Second operand has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:23,596 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:23,596 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2021-12-06 22:39:23,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:23,908 INFO L129 PetriNetUnfolder]: 145/549 cut-off events. [2021-12-06 22:39:23,908 INFO L130 PetriNetUnfolder]: For 1459/1459 co-relation queries the response was YES. [2021-12-06 22:39:23,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1832 conditions, 549 events. 145/549 cut-off events. For 1459/1459 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2294 event pairs, 41 based on Foata normal form. 10/556 useless extension candidates. Maximal degree in co-relation 1763. Up to 181 conditions per place. [2021-12-06 22:39:23,910 INFO L132 encePairwiseOnDemand]: 88/98 looper letters, 54 selfloop transitions, 8 changer transitions 78/184 dead transitions. [2021-12-06 22:39:23,911 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 184 transitions, 1196 flow [2021-12-06 22:39:23,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:39:23,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:39:23,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 632 transitions. [2021-12-06 22:39:23,912 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5862708719851577 [2021-12-06 22:39:23,912 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 632 transitions. [2021-12-06 22:39:23,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 632 transitions. [2021-12-06 22:39:23,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:23,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 632 transitions. [2021-12-06 22:39:23,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 57.45454545454545) internal successors, (632), 11 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:23,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:23,914 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:23,915 INFO L186 Difference]: Start difference. First operand has 138 places, 109 transitions, 483 flow. Second operand 11 states and 632 transitions. [2021-12-06 22:39:23,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 184 transitions, 1196 flow [2021-12-06 22:39:23,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 184 transitions, 1092 flow, removed 46 selfloop flow, removed 12 redundant places. [2021-12-06 22:39:23,920 INFO L242 Difference]: Finished difference. Result has 130 places, 103 transitions, 441 flow [2021-12-06 22:39:23,921 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=441, PETRI_PLACES=130, PETRI_TRANSITIONS=103} [2021-12-06 22:39:23,921 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 39 predicate places. [2021-12-06 22:39:23,921 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 103 transitions, 441 flow [2021-12-06 22:39:23,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:23,921 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:23,921 INFO L254 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] [2021-12-06 22:39:23,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 22:39:23,922 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:23,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:23,922 INFO L85 PathProgramCache]: Analyzing trace with hash -876702034, now seen corresponding path program 9 times [2021-12-06 22:39:23,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:23,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187808405] [2021-12-06 22:39:23,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:23,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:24,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:24,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:24,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187808405] [2021-12-06 22:39:24,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187808405] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:24,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:24,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 22:39:24,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203404772] [2021-12-06 22:39:24,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:24,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 22:39:24,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:24,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 22:39:24,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-12-06 22:39:24,083 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2021-12-06 22:39:24,083 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 103 transitions, 441 flow. Second operand has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:24,084 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:24,084 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2021-12-06 22:39:24,084 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:24,343 INFO L129 PetriNetUnfolder]: 62/329 cut-off events. [2021-12-06 22:39:24,343 INFO L130 PetriNetUnfolder]: For 609/611 co-relation queries the response was YES. [2021-12-06 22:39:24,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 329 events. 62/329 cut-off events. For 609/611 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1193 event pairs, 24 based on Foata normal form. 7/335 useless extension candidates. Maximal degree in co-relation 956. Up to 110 conditions per place. [2021-12-06 22:39:24,345 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 62 selfloop transitions, 13 changer transitions 29/148 dead transitions. [2021-12-06 22:39:24,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 148 transitions, 807 flow [2021-12-06 22:39:24,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:39:24,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:39:24,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 630 transitions. [2021-12-06 22:39:24,347 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5844155844155844 [2021-12-06 22:39:24,347 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 630 transitions. [2021-12-06 22:39:24,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 630 transitions. [2021-12-06 22:39:24,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:24,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 630 transitions. [2021-12-06 22:39:24,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 57.27272727272727) internal successors, (630), 11 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:24,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:24,351 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:24,351 INFO L186 Difference]: Start difference. First operand has 130 places, 103 transitions, 441 flow. Second operand 11 states and 630 transitions. [2021-12-06 22:39:24,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 148 transitions, 807 flow [2021-12-06 22:39:24,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 148 transitions, 748 flow, removed 16 selfloop flow, removed 13 redundant places. [2021-12-06 22:39:24,357 INFO L242 Difference]: Finished difference. Result has 128 places, 105 transitions, 447 flow [2021-12-06 22:39:24,357 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=447, PETRI_PLACES=128, PETRI_TRANSITIONS=105} [2021-12-06 22:39:24,358 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 37 predicate places. [2021-12-06 22:39:24,358 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 105 transitions, 447 flow [2021-12-06 22:39:24,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:24,359 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:24,359 INFO L254 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] [2021-12-06 22:39:24,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 22:39:24,359 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:24,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:24,360 INFO L85 PathProgramCache]: Analyzing trace with hash -614773168, now seen corresponding path program 10 times [2021-12-06 22:39:24,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:24,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878415836] [2021-12-06 22:39:24,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:24,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:24,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:24,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:24,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878415836] [2021-12-06 22:39:24,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878415836] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:24,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:24,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 22:39:24,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877780140] [2021-12-06 22:39:24,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:24,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 22:39:24,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:24,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 22:39:24,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 22:39:24,532 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2021-12-06 22:39:24,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 105 transitions, 447 flow. Second operand has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:24,533 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:24,533 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2021-12-06 22:39:24,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:24,906 INFO L129 PetriNetUnfolder]: 74/365 cut-off events. [2021-12-06 22:39:24,907 INFO L130 PetriNetUnfolder]: For 645/647 co-relation queries the response was YES. [2021-12-06 22:39:24,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1133 conditions, 365 events. 74/365 cut-off events. For 645/647 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1451 event pairs, 15 based on Foata normal form. 12/376 useless extension candidates. Maximal degree in co-relation 1071. Up to 110 conditions per place. [2021-12-06 22:39:24,909 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 69 selfloop transitions, 14 changer transitions 39/166 dead transitions. [2021-12-06 22:39:24,909 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 166 transitions, 953 flow [2021-12-06 22:39:24,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 22:39:24,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 22:39:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 687 transitions. [2021-12-06 22:39:24,910 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5841836734693877 [2021-12-06 22:39:24,910 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 687 transitions. [2021-12-06 22:39:24,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 687 transitions. [2021-12-06 22:39:24,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:24,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 687 transitions. [2021-12-06 22:39:24,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:24,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 98.0) internal successors, (1274), 13 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:24,913 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 98.0) internal successors, (1274), 13 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:24,913 INFO L186 Difference]: Start difference. First operand has 128 places, 105 transitions, 447 flow. Second operand 12 states and 687 transitions. [2021-12-06 22:39:24,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 166 transitions, 953 flow [2021-12-06 22:39:24,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 166 transitions, 922 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-12-06 22:39:24,917 INFO L242 Difference]: Finished difference. Result has 136 places, 106 transitions, 486 flow [2021-12-06 22:39:24,917 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=486, PETRI_PLACES=136, PETRI_TRANSITIONS=106} [2021-12-06 22:39:24,918 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 45 predicate places. [2021-12-06 22:39:24,918 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 106 transitions, 486 flow [2021-12-06 22:39:24,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:24,918 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:24,918 INFO L254 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] [2021-12-06 22:39:24,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 22:39:24,918 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:24,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:24,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1072574614, now seen corresponding path program 11 times [2021-12-06 22:39:24,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:24,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366710577] [2021-12-06 22:39:24,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:24,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:25,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:25,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:25,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366710577] [2021-12-06 22:39:25,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366710577] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:25,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:25,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 22:39:25,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931289252] [2021-12-06 22:39:25,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:25,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 22:39:25,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:25,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 22:39:25,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 22:39:25,082 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2021-12-06 22:39:25,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 106 transitions, 486 flow. Second operand has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:25,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:25,083 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2021-12-06 22:39:25,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:25,426 INFO L129 PetriNetUnfolder]: 52/276 cut-off events. [2021-12-06 22:39:25,426 INFO L130 PetriNetUnfolder]: For 745/747 co-relation queries the response was YES. [2021-12-06 22:39:25,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 276 events. 52/276 cut-off events. For 745/747 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 865 event pairs, 18 based on Foata normal form. 12/287 useless extension candidates. Maximal degree in co-relation 834. Up to 72 conditions per place. [2021-12-06 22:39:25,428 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 47 selfloop transitions, 8 changer transitions 55/154 dead transitions. [2021-12-06 22:39:25,428 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 154 transitions, 910 flow [2021-12-06 22:39:25,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 22:39:25,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 22:39:25,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 675 transitions. [2021-12-06 22:39:25,429 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5739795918367347 [2021-12-06 22:39:25,429 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 675 transitions. [2021-12-06 22:39:25,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 675 transitions. [2021-12-06 22:39:25,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:25,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 675 transitions. [2021-12-06 22:39:25,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.25) internal successors, (675), 12 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:25,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 98.0) internal successors, (1274), 13 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:25,432 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 98.0) internal successors, (1274), 13 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:25,432 INFO L186 Difference]: Start difference. First operand has 136 places, 106 transitions, 486 flow. Second operand 12 states and 675 transitions. [2021-12-06 22:39:25,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 154 transitions, 910 flow [2021-12-06 22:39:25,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 154 transitions, 824 flow, removed 18 selfloop flow, removed 14 redundant places. [2021-12-06 22:39:25,438 INFO L242 Difference]: Finished difference. Result has 133 places, 99 transitions, 376 flow [2021-12-06 22:39:25,438 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=376, PETRI_PLACES=133, PETRI_TRANSITIONS=99} [2021-12-06 22:39:25,439 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 42 predicate places. [2021-12-06 22:39:25,439 INFO L470 AbstractCegarLoop]: Abstraction has has 133 places, 99 transitions, 376 flow [2021-12-06 22:39:25,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:25,439 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:39:25,440 INFO L254 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] [2021-12-06 22:39:25,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 22:39:25,440 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 22:39:25,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:39:25,440 INFO L85 PathProgramCache]: Analyzing trace with hash -2027153900, now seen corresponding path program 12 times [2021-12-06 22:39:25,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:39:25,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132690486] [2021-12-06 22:39:25,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:39:25,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:39:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:39:25,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:39:25,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:39:25,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132690486] [2021-12-06 22:39:25,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132690486] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:39:25,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:39:25,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 22:39:25,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050139611] [2021-12-06 22:39:25,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:39:25,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 22:39:25,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:39:25,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 22:39:25,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 22:39:25,593 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2021-12-06 22:39:25,593 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 99 transitions, 376 flow. Second operand has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:25,593 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:39:25,593 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2021-12-06 22:39:25,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:39:25,827 INFO L129 PetriNetUnfolder]: 31/172 cut-off events. [2021-12-06 22:39:25,827 INFO L130 PetriNetUnfolder]: For 193/195 co-relation queries the response was YES. [2021-12-06 22:39:25,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 172 events. 31/172 cut-off events. For 193/195 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 306 event pairs, 0 based on Foata normal form. 12/184 useless extension candidates. Maximal degree in co-relation 469. Up to 35 conditions per place. [2021-12-06 22:39:25,828 INFO L132 encePairwiseOnDemand]: 88/98 looper letters, 0 selfloop transitions, 0 changer transitions 134/134 dead transitions. [2021-12-06 22:39:25,828 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 134 transitions, 692 flow [2021-12-06 22:39:25,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:39:25,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:39:25,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 612 transitions. [2021-12-06 22:39:25,829 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5677179962894249 [2021-12-06 22:39:25,829 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 612 transitions. [2021-12-06 22:39:25,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 612 transitions. [2021-12-06 22:39:25,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:39:25,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 612 transitions. [2021-12-06 22:39:25,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.63636363636363) internal successors, (612), 11 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:25,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:25,832 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:25,832 INFO L186 Difference]: Start difference. First operand has 133 places, 99 transitions, 376 flow. Second operand 11 states and 612 transitions. [2021-12-06 22:39:25,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 134 transitions, 692 flow [2021-12-06 22:39:25,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 134 transitions, 617 flow, removed 22 selfloop flow, removed 14 redundant places. [2021-12-06 22:39:25,834 INFO L242 Difference]: Finished difference. Result has 118 places, 0 transitions, 0 flow [2021-12-06 22:39:25,834 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=118, PETRI_TRANSITIONS=0} [2021-12-06 22:39:25,835 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 27 predicate places. [2021-12-06 22:39:25,835 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 0 transitions, 0 flow [2021-12-06 22:39:25,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.69230769230769) internal successors, (672), 13 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:39:25,837 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2021-12-06 22:39:25,837 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2021-12-06 22:39:25,837 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2021-12-06 22:39:25,837 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 8 remaining) [2021-12-06 22:39:25,837 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2021-12-06 22:39:25,837 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2021-12-06 22:39:25,838 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2021-12-06 22:39:25,838 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2021-12-06 22:39:25,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 22:39:25,840 INFO L732 BasicCegarLoop]: Path program histogram: [12, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:39:25,843 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-06 22:39:25,843 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 22:39:25,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 10:39:25 BasicIcfg [2021-12-06 22:39:25,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 22:39:25,846 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 22:39:25,846 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 22:39:25,846 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 22:39:25,846 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:39:16" (3/4) ... [2021-12-06 22:39:25,848 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 22:39:25,852 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-12-06 22:39:25,856 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-06 22:39:25,856 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-06 22:39:25,856 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 22:39:25,880 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 22:39:25,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 22:39:25,880 INFO L158 Benchmark]: Toolchain (without parser) took 10278.45ms. Allocated memory was 86.0MB in the beginning and 136.3MB in the end (delta: 50.3MB). Free memory was 48.2MB in the beginning and 78.9MB in the end (delta: -30.7MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2021-12-06 22:39:25,881 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 86.0MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:39:25,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.66ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 48.0MB in the beginning and 70.6MB in the end (delta: -22.6MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2021-12-06 22:39:25,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.32ms. Allocated memory is still 113.2MB. Free memory was 70.6MB in the beginning and 68.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:39:25,882 INFO L158 Benchmark]: Boogie Preprocessor took 31.50ms. Allocated memory is still 113.2MB. Free memory was 68.0MB in the beginning and 66.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:39:25,882 INFO L158 Benchmark]: RCFGBuilder took 342.38ms. Allocated memory is still 113.2MB. Free memory was 66.3MB in the beginning and 52.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 22:39:25,882 INFO L158 Benchmark]: TraceAbstraction took 9376.91ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 51.7MB in the beginning and 82.0MB in the end (delta: -30.4MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2021-12-06 22:39:25,882 INFO L158 Benchmark]: Witness Printer took 34.21ms. Allocated memory is still 136.3MB. Free memory was 82.0MB in the beginning and 78.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 22:39:25,884 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 86.0MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.66ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 48.0MB in the beginning and 70.6MB in the end (delta: -22.6MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.32ms. Allocated memory is still 113.2MB. Free memory was 70.6MB in the beginning and 68.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.50ms. Allocated memory is still 113.2MB. Free memory was 68.0MB in the beginning and 66.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 342.38ms. Allocated memory is still 113.2MB. Free memory was 66.3MB in the beginning and 52.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9376.91ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 51.7MB in the beginning and 82.0MB in the end (delta: -30.4MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. * Witness Printer took 34.21ms. Allocated memory is still 136.3MB. Free memory was 82.0MB in the beginning and 78.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 933]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 922]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 922]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 127 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.3s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1829 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1829 mSDsluCounter, 684 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 334 mSDsCounter, 1002 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5599 IncrementalHoareTripleChecker+Invalid, 6601 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1002 mSolverCounterUnsat, 354 mSDtfsCounter, 5599 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1692occurred in iteration=4, InterpolantAutomatonStates: 181, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1224 NumberOfCodeBlocks, 1224 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1205 ConstructedInterpolants, 0 QuantifiedInterpolants, 9482 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-06 22:39:25,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5ed37-1b18-4313-b51c-c4c4fceb950e/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE