./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:33:00,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:33:00,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:33:00,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:33:00,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:33:00,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:33:00,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:33:00,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:33:00,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:33:00,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:33:00,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:33:00,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:33:00,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:33:00,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:33:00,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:33:00,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:33:00,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:33:00,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:33:00,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:33:00,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:33:00,072 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:33:00,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:33:00,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:33:00,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:33:00,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:33:00,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:33:00,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:33:00,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:33:00,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:33:00,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:33:00,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:33:00,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:33:00,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:33:00,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:33:00,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:33:00,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:33:00,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:33:00,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:33:00,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:33:00,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:33:00,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:33:00,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:33:00,089 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:33:00,111 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:33:00,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:33:00,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:33:00,112 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:33:00,112 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:33:00,112 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:33:00,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:33:00,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:33:00,113 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:33:00,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:33:00,114 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:33:00,114 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:33:00,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:33:00,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:33:00,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:33:00,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:33:00,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:33:00,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:33:00,115 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:33:00,115 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:33:00,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:33:00,115 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:33:00,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:33:00,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:33:00,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:33:00,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:33:00,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:00,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:33:00,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:33:00,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:33:00,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:33:00,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:33:00,117 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:33:00,117 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:33:00,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:33:00,118 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 [2022-04-18 16:33:00,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:33:00,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:33:00,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:33:00,331 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:33:00,331 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:33:00,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c [2022-04-18 16:33:00,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ee5dba56/0327357461944214b69e8f6e1281542e/FLAGdd7ec1ad4 [2022-04-18 16:33:00,727 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:33:00,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c [2022-04-18 16:33:00,738 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ee5dba56/0327357461944214b69e8f6e1281542e/FLAGdd7ec1ad4 [2022-04-18 16:33:00,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ee5dba56/0327357461944214b69e8f6e1281542e [2022-04-18 16:33:00,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:33:00,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:33:00,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:00,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:33:00,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:33:00,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:00" (1/1) ... [2022-04-18 16:33:00,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c85983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:00, skipping insertion in model container [2022-04-18 16:33:00,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:00" (1/1) ... [2022-04-18 16:33:00,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:33:00,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:33:01,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c[3945,3958] [2022-04-18 16:33:01,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:01,055 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:33:01,143 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c[3945,3958] [2022-04-18 16:33:01,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:01,161 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:33:01,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:01 WrapperNode [2022-04-18 16:33:01,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:01,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:01,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:33:01,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:33:01,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:01" (1/1) ... [2022-04-18 16:33:01,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:01" (1/1) ... [2022-04-18 16:33:01,228 INFO L137 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 807 [2022-04-18 16:33:01,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:01,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:33:01,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:33:01,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:33:01,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:01" (1/1) ... [2022-04-18 16:33:01,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:01" (1/1) ... [2022-04-18 16:33:01,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:01" (1/1) ... [2022-04-18 16:33:01,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:01" (1/1) ... [2022-04-18 16:33:01,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:01" (1/1) ... [2022-04-18 16:33:01,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:01" (1/1) ... [2022-04-18 16:33:01,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:01" (1/1) ... [2022-04-18 16:33:01,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:33:01,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:33:01,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:33:01,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:33:01,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:01" (1/1) ... [2022-04-18 16:33:01,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:01,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:33:01,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 16:33:01,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 16:33:01,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:33:01,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:33:01,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:33:01,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:33:01,370 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:33:01,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:33:01,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:33:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:33:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:33:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:33:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:33:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:33:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:33:01,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:33:01,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:33:01,374 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:33:01,500 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:33:01,512 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:33:02,561 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:33:02,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:33:02,572 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-04-18 16:33:02,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:02 BoogieIcfgContainer [2022-04-18 16:33:02,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:33:02,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:33:02,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:33:02,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:33:02,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:33:00" (1/3) ... [2022-04-18 16:33:02,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@887f266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:02, skipping insertion in model container [2022-04-18 16:33:02,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:01" (2/3) ... [2022-04-18 16:33:02,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@887f266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:02, skipping insertion in model container [2022-04-18 16:33:02,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:02" (3/3) ... [2022-04-18 16:33:02,580 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2022-04-18 16:33:02,583 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:33:02,583 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:33:02,583 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 117 error locations. [2022-04-18 16:33:02,584 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:33:02,691 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 16:33:02,721 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:33:02,725 INFO L340 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 [2022-04-18 16:33:02,726 INFO L341 AbstractCegarLoop]: Starting to check reachability of 195 error locations. [2022-04-18 16:33:02,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 1023 places, 1064 transitions, 2152 flow [2022-04-18 16:33:03,089 INFO L129 PetriNetUnfolder]: 51/1061 cut-off events. [2022-04-18 16:33:03,090 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:33:03,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 1061 events. 51/1061 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2294 event pairs, 0 based on Foata normal form. 0/893 useless extension candidates. Maximal degree in co-relation 840. Up to 2 conditions per place. [2022-04-18 16:33:03,104 INFO L82 GeneralOperation]: Start removeDead. Operand has 1023 places, 1064 transitions, 2152 flow [2022-04-18 16:33:03,119 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 998 places, 1037 transitions, 2092 flow [2022-04-18 16:33:03,123 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2022-04-18 16:33:03,123 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:33:03,124 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:03,124 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:03,125 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:03,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:03,130 INFO L85 PathProgramCache]: Analyzing trace with hash 811713284, now seen corresponding path program 1 times [2022-04-18 16:33:03,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:03,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320593209] [2022-04-18 16:33:03,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:03,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:03,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:03,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:03,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320593209] [2022-04-18 16:33:03,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320593209] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:03,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:03,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:03,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186042702] [2022-04-18 16:33:03,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:03,339 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:03,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:03,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:03,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:03,393 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 992 out of 1064 [2022-04-18 16:33:03,401 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 998 places, 1037 transitions, 2092 flow. Second operand has 3 states, 3 states have (on average 993.3333333333334) internal successors, (2980), 3 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:03,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:03,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 992 of 1064 [2022-04-18 16:33:03,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:04,542 INFO L129 PetriNetUnfolder]: 206/3367 cut-off events. [2022-04-18 16:33:04,543 INFO L130 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-04-18 16:33:04,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3710 conditions, 3367 events. 206/3367 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 22679 event pairs, 117 based on Foata normal form. 145/2869 useless extension candidates. Maximal degree in co-relation 2791. Up to 274 conditions per place. [2022-04-18 16:33:04,645 INFO L132 encePairwiseOnDemand]: 1033/1064 looper letters, 39 selfloop transitions, 2 changer transitions 16/1008 dead transitions. [2022-04-18 16:33:04,646 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 999 places, 1008 transitions, 2116 flow [2022-04-18 16:33:04,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:04,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:04,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3046 transitions. [2022-04-18 16:33:04,667 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9542606516290727 [2022-04-18 16:33:04,668 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3046 transitions. [2022-04-18 16:33:04,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3046 transitions. [2022-04-18 16:33:04,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:04,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3046 transitions. [2022-04-18 16:33:04,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1015.3333333333334) internal successors, (3046), 3 states have internal predecessors, (3046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:04,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:04,696 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:04,697 INFO L186 Difference]: Start difference. First operand has 998 places, 1037 transitions, 2092 flow. Second operand 3 states and 3046 transitions. [2022-04-18 16:33:04,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 999 places, 1008 transitions, 2116 flow [2022-04-18 16:33:04,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 993 places, 1008 transitions, 2104 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-04-18 16:33:04,722 INFO L242 Difference]: Finished difference. Result has 993 places, 992 transitions, 1994 flow [2022-04-18 16:33:04,724 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=2022, PETRI_DIFFERENCE_MINUEND_PLACES=991, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1008, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1006, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1994, PETRI_PLACES=993, PETRI_TRANSITIONS=992} [2022-04-18 16:33:04,728 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -5 predicate places. [2022-04-18 16:33:04,729 INFO L478 AbstractCegarLoop]: Abstraction has has 993 places, 992 transitions, 1994 flow [2022-04-18 16:33:04,730 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 993.3333333333334) internal successors, (2980), 3 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:04,731 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:04,731 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:04,731 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:33:04,731 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:04,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:04,732 INFO L85 PathProgramCache]: Analyzing trace with hash -686130824, now seen corresponding path program 1 times [2022-04-18 16:33:04,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:04,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16194707] [2022-04-18 16:33:04,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:04,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:04,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:04,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:04,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16194707] [2022-04-18 16:33:04,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16194707] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:04,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:04,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:04,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934015706] [2022-04-18 16:33:04,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:04,801 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:04,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:04,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:04,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:04,806 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 995 out of 1064 [2022-04-18 16:33:04,812 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 993 places, 992 transitions, 1994 flow. Second operand has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:04,812 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:04,812 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 995 of 1064 [2022-04-18 16:33:04,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:05,502 INFO L129 PetriNetUnfolder]: 133/2750 cut-off events. [2022-04-18 16:33:05,503 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-04-18 16:33:05,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2918 conditions, 2750 events. 133/2750 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 16484 event pairs, 60 based on Foata normal form. 0/2297 useless extension candidates. Maximal degree in co-relation 2871. Up to 146 conditions per place. [2022-04-18 16:33:05,566 INFO L132 encePairwiseOnDemand]: 1053/1064 looper letters, 27 selfloop transitions, 1 changer transitions 0/982 dead transitions. [2022-04-18 16:33:05,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 969 places, 982 transitions, 2030 flow [2022-04-18 16:33:05,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:05,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:05,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3023 transitions. [2022-04-18 16:33:05,572 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9470551378446115 [2022-04-18 16:33:05,573 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3023 transitions. [2022-04-18 16:33:05,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3023 transitions. [2022-04-18 16:33:05,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:05,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3023 transitions. [2022-04-18 16:33:05,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1007.6666666666666) internal successors, (3023), 3 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:05,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:05,584 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:05,584 INFO L186 Difference]: Start difference. First operand has 993 places, 992 transitions, 1994 flow. Second operand 3 states and 3023 transitions. [2022-04-18 16:33:05,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 969 places, 982 transitions, 2030 flow [2022-04-18 16:33:05,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 967 places, 982 transitions, 2026 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:05,635 INFO L242 Difference]: Finished difference. Result has 967 places, 982 transitions, 1972 flow [2022-04-18 16:33:05,636 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1970, PETRI_DIFFERENCE_MINUEND_PLACES=965, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=982, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=981, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1972, PETRI_PLACES=967, PETRI_TRANSITIONS=982} [2022-04-18 16:33:05,636 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -31 predicate places. [2022-04-18 16:33:05,637 INFO L478 AbstractCegarLoop]: Abstraction has has 967 places, 982 transitions, 1972 flow [2022-04-18 16:33:05,638 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:05,638 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:05,638 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:05,638 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:33:05,638 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:05,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:05,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2051119130, now seen corresponding path program 1 times [2022-04-18 16:33:05,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:05,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440031435] [2022-04-18 16:33:05,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:05,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:05,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:05,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:05,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440031435] [2022-04-18 16:33:05,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440031435] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:05,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:05,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:05,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183797173] [2022-04-18 16:33:05,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:05,709 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:05,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:05,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:05,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:05,712 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 992 out of 1064 [2022-04-18 16:33:05,716 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 967 places, 982 transitions, 1972 flow. Second operand has 3 states, 3 states have (on average 993.3333333333334) internal successors, (2980), 3 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:05,716 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:05,716 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 992 of 1064 [2022-04-18 16:33:05,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:06,946 INFO L129 PetriNetUnfolder]: 427/5265 cut-off events. [2022-04-18 16:33:06,946 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-04-18 16:33:06,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5915 conditions, 5265 events. 427/5265 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 44664 event pairs, 279 based on Foata normal form. 0/4302 useless extension candidates. Maximal degree in co-relation 5869. Up to 534 conditions per place. [2022-04-18 16:33:07,020 INFO L132 encePairwiseOnDemand]: 1061/1064 looper letters, 39 selfloop transitions, 2 changer transitions 0/981 dead transitions. [2022-04-18 16:33:07,020 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 968 places, 981 transitions, 2052 flow [2022-04-18 16:33:07,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:07,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:07,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3018 transitions. [2022-04-18 16:33:07,025 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9454887218045113 [2022-04-18 16:33:07,025 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3018 transitions. [2022-04-18 16:33:07,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3018 transitions. [2022-04-18 16:33:07,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:07,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3018 transitions. [2022-04-18 16:33:07,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1006.0) internal successors, (3018), 3 states have internal predecessors, (3018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:07,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:07,037 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:07,037 INFO L186 Difference]: Start difference. First operand has 967 places, 982 transitions, 1972 flow. Second operand 3 states and 3018 transitions. [2022-04-18 16:33:07,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 968 places, 981 transitions, 2052 flow [2022-04-18 16:33:07,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 967 places, 981 transitions, 2051 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:33:07,049 INFO L242 Difference]: Finished difference. Result has 967 places, 981 transitions, 1973 flow [2022-04-18 16:33:07,050 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1969, PETRI_DIFFERENCE_MINUEND_PLACES=965, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=981, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=979, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1973, PETRI_PLACES=967, PETRI_TRANSITIONS=981} [2022-04-18 16:33:07,051 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -31 predicate places. [2022-04-18 16:33:07,051 INFO L478 AbstractCegarLoop]: Abstraction has has 967 places, 981 transitions, 1973 flow [2022-04-18 16:33:07,052 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 993.3333333333334) internal successors, (2980), 3 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:07,053 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:07,053 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:07,053 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:33:07,053 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:07,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:07,054 INFO L85 PathProgramCache]: Analyzing trace with hash -717438117, now seen corresponding path program 1 times [2022-04-18 16:33:07,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:07,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487336599] [2022-04-18 16:33:07,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:07,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:07,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:07,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487336599] [2022-04-18 16:33:07,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487336599] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:07,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:07,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:07,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264172032] [2022-04-18 16:33:07,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:07,081 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:07,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:07,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:07,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:07,084 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 995 out of 1064 [2022-04-18 16:33:07,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 967 places, 981 transitions, 1973 flow. Second operand has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:07,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:07,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 995 of 1064 [2022-04-18 16:33:07,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:07,992 INFO L129 PetriNetUnfolder]: 251/4131 cut-off events. [2022-04-18 16:33:07,992 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-04-18 16:33:08,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4460 conditions, 4131 events. 251/4131 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 31890 event pairs, 132 based on Foata normal form. 0/3464 useless extension candidates. Maximal degree in co-relation 4415. Up to 264 conditions per place. [2022-04-18 16:33:08,071 INFO L132 encePairwiseOnDemand]: 1053/1064 looper letters, 27 selfloop transitions, 1 changer transitions 0/971 dead transitions. [2022-04-18 16:33:08,071 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 971 transitions, 2009 flow [2022-04-18 16:33:08,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:08,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:08,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3023 transitions. [2022-04-18 16:33:08,076 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9470551378446115 [2022-04-18 16:33:08,077 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3023 transitions. [2022-04-18 16:33:08,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3023 transitions. [2022-04-18 16:33:08,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:08,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3023 transitions. [2022-04-18 16:33:08,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1007.6666666666666) internal successors, (3023), 3 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:08,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:08,101 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:08,101 INFO L186 Difference]: Start difference. First operand has 967 places, 981 transitions, 1973 flow. Second operand 3 states and 3023 transitions. [2022-04-18 16:33:08,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 971 transitions, 2009 flow [2022-04-18 16:33:08,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 957 places, 971 transitions, 2005 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:08,114 INFO L242 Difference]: Finished difference. Result has 957 places, 971 transitions, 1951 flow [2022-04-18 16:33:08,116 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1949, PETRI_DIFFERENCE_MINUEND_PLACES=955, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=971, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=970, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1951, PETRI_PLACES=957, PETRI_TRANSITIONS=971} [2022-04-18 16:33:08,117 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -41 predicate places. [2022-04-18 16:33:08,117 INFO L478 AbstractCegarLoop]: Abstraction has has 957 places, 971 transitions, 1951 flow [2022-04-18 16:33:08,118 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:08,118 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:08,118 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:08,119 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:33:08,119 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:08,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:08,119 INFO L85 PathProgramCache]: Analyzing trace with hash -430221289, now seen corresponding path program 1 times [2022-04-18 16:33:08,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:08,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106469287] [2022-04-18 16:33:08,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:08,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:08,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:08,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:08,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106469287] [2022-04-18 16:33:08,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106469287] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:08,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:08,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:08,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10678185] [2022-04-18 16:33:08,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:08,178 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:08,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:08,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:08,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:08,181 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 992 out of 1064 [2022-04-18 16:33:08,183 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 971 transitions, 1951 flow. Second operand has 3 states, 3 states have (on average 993.3333333333334) internal successors, (2980), 3 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:08,183 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:08,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 992 of 1064 [2022-04-18 16:33:08,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:09,526 INFO L129 PetriNetUnfolder]: 431/4921 cut-off events. [2022-04-18 16:33:09,527 INFO L130 PetriNetUnfolder]: For 122/166 co-relation queries the response was YES. [2022-04-18 16:33:09,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5488 conditions, 4921 events. 431/4921 cut-off events. For 122/166 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 41703 event pairs, 279 based on Foata normal form. 0/4062 useless extension candidates. Maximal degree in co-relation 5442. Up to 549 conditions per place. [2022-04-18 16:33:09,602 INFO L132 encePairwiseOnDemand]: 1061/1064 looper letters, 39 selfloop transitions, 2 changer transitions 0/970 dead transitions. [2022-04-18 16:33:09,603 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 958 places, 970 transitions, 2031 flow [2022-04-18 16:33:09,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:09,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:09,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3018 transitions. [2022-04-18 16:33:09,608 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9454887218045113 [2022-04-18 16:33:09,608 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3018 transitions. [2022-04-18 16:33:09,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3018 transitions. [2022-04-18 16:33:09,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:09,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3018 transitions. [2022-04-18 16:33:09,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1006.0) internal successors, (3018), 3 states have internal predecessors, (3018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:09,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:09,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:09,616 INFO L186 Difference]: Start difference. First operand has 957 places, 971 transitions, 1951 flow. Second operand 3 states and 3018 transitions. [2022-04-18 16:33:09,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 958 places, 970 transitions, 2031 flow [2022-04-18 16:33:09,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 957 places, 970 transitions, 2030 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:33:09,628 INFO L242 Difference]: Finished difference. Result has 957 places, 970 transitions, 1952 flow [2022-04-18 16:33:09,629 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1948, PETRI_DIFFERENCE_MINUEND_PLACES=955, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=968, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1952, PETRI_PLACES=957, PETRI_TRANSITIONS=970} [2022-04-18 16:33:09,630 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -41 predicate places. [2022-04-18 16:33:09,630 INFO L478 AbstractCegarLoop]: Abstraction has has 957 places, 970 transitions, 1952 flow [2022-04-18 16:33:09,631 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 993.3333333333334) internal successors, (2980), 3 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:09,631 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:09,631 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:09,631 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:33:09,631 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:09,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:09,632 INFO L85 PathProgramCache]: Analyzing trace with hash 504556368, now seen corresponding path program 1 times [2022-04-18 16:33:09,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:09,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950757060] [2022-04-18 16:33:09,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:09,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:09,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:09,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:09,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950757060] [2022-04-18 16:33:09,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950757060] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:09,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:09,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:09,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793514388] [2022-04-18 16:33:09,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:09,658 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:09,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:09,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:09,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:09,661 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 995 out of 1064 [2022-04-18 16:33:09,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 970 transitions, 1952 flow. Second operand has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:09,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:09,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 995 of 1064 [2022-04-18 16:33:09,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:10,524 INFO L129 PetriNetUnfolder]: 252/3844 cut-off events. [2022-04-18 16:33:10,524 INFO L130 PetriNetUnfolder]: For 65/94 co-relation queries the response was YES. [2022-04-18 16:33:10,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4136 conditions, 3844 events. 252/3844 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 28321 event pairs, 132 based on Foata normal form. 0/3264 useless extension candidates. Maximal degree in co-relation 4091. Up to 274 conditions per place. [2022-04-18 16:33:10,621 INFO L132 encePairwiseOnDemand]: 1053/1064 looper letters, 27 selfloop transitions, 1 changer transitions 0/960 dead transitions. [2022-04-18 16:33:10,622 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 949 places, 960 transitions, 1988 flow [2022-04-18 16:33:10,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:10,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:10,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3023 transitions. [2022-04-18 16:33:10,627 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9470551378446115 [2022-04-18 16:33:10,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3023 transitions. [2022-04-18 16:33:10,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3023 transitions. [2022-04-18 16:33:10,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:10,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3023 transitions. [2022-04-18 16:33:10,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1007.6666666666666) internal successors, (3023), 3 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:10,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:10,636 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:10,636 INFO L186 Difference]: Start difference. First operand has 957 places, 970 transitions, 1952 flow. Second operand 3 states and 3023 transitions. [2022-04-18 16:33:10,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 949 places, 960 transitions, 1988 flow [2022-04-18 16:33:10,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 947 places, 960 transitions, 1984 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:10,649 INFO L242 Difference]: Finished difference. Result has 947 places, 960 transitions, 1930 flow [2022-04-18 16:33:10,650 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1928, PETRI_DIFFERENCE_MINUEND_PLACES=945, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=959, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1930, PETRI_PLACES=947, PETRI_TRANSITIONS=960} [2022-04-18 16:33:10,650 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -51 predicate places. [2022-04-18 16:33:10,651 INFO L478 AbstractCegarLoop]: Abstraction has has 947 places, 960 transitions, 1930 flow [2022-04-18 16:33:10,652 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:10,652 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:10,652 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:10,652 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:33:10,652 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:10,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:10,653 INFO L85 PathProgramCache]: Analyzing trace with hash -2075910050, now seen corresponding path program 1 times [2022-04-18 16:33:10,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:10,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705531911] [2022-04-18 16:33:10,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:10,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:10,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:10,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705531911] [2022-04-18 16:33:10,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705531911] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:10,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:10,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:10,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816556016] [2022-04-18 16:33:10,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:10,684 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:10,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:10,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:10,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:10,687 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1016 out of 1064 [2022-04-18 16:33:10,689 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 947 places, 960 transitions, 1930 flow. Second operand has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:10,689 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:10,689 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1016 of 1064 [2022-04-18 16:33:10,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:10,906 INFO L129 PetriNetUnfolder]: 35/1307 cut-off events. [2022-04-18 16:33:10,906 INFO L130 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-04-18 16:33:10,923 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 1307 events. 35/1307 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3861 event pairs, 6 based on Foata normal form. 0/1141 useless extension candidates. Maximal degree in co-relation 1305. Up to 28 conditions per place. [2022-04-18 16:33:10,931 INFO L132 encePairwiseOnDemand]: 1061/1064 looper letters, 15 selfloop transitions, 2 changer transitions 0/959 dead transitions. [2022-04-18 16:33:10,931 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 959 transitions, 1962 flow [2022-04-18 16:33:10,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:10,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:10,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3066 transitions. [2022-04-18 16:33:10,936 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9605263157894737 [2022-04-18 16:33:10,936 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3066 transitions. [2022-04-18 16:33:10,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3066 transitions. [2022-04-18 16:33:10,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:10,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3066 transitions. [2022-04-18 16:33:10,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1022.0) internal successors, (3066), 3 states have internal predecessors, (3066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:10,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:10,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:10,945 INFO L186 Difference]: Start difference. First operand has 947 places, 960 transitions, 1930 flow. Second operand 3 states and 3066 transitions. [2022-04-18 16:33:10,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 948 places, 959 transitions, 1962 flow [2022-04-18 16:33:10,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 947 places, 959 transitions, 1961 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:33:10,956 INFO L242 Difference]: Finished difference. Result has 947 places, 959 transitions, 1931 flow [2022-04-18 16:33:10,958 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=945, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=959, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1931, PETRI_PLACES=947, PETRI_TRANSITIONS=959} [2022-04-18 16:33:10,958 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -51 predicate places. [2022-04-18 16:33:10,958 INFO L478 AbstractCegarLoop]: Abstraction has has 947 places, 959 transitions, 1931 flow [2022-04-18 16:33:10,959 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:10,959 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:10,959 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:10,959 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:33:10,960 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:10,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:10,960 INFO L85 PathProgramCache]: Analyzing trace with hash 330099482, now seen corresponding path program 1 times [2022-04-18 16:33:10,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:10,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228568266] [2022-04-18 16:33:10,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:10,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:10,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:10,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:10,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228568266] [2022-04-18 16:33:10,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228568266] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:10,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:10,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:10,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908831881] [2022-04-18 16:33:10,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:10,985 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:10,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:10,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:10,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:10,988 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 1064 [2022-04-18 16:33:10,990 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 947 places, 959 transitions, 1931 flow. Second operand has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:10,990 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:10,990 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 1064 [2022-04-18 16:33:10,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:11,247 INFO L129 PetriNetUnfolder]: 55/1558 cut-off events. [2022-04-18 16:33:11,247 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:33:11,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1643 conditions, 1558 events. 55/1558 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6967 event pairs, 18 based on Foata normal form. 0/1350 useless extension candidates. Maximal degree in co-relation 1597. Up to 55 conditions per place. [2022-04-18 16:33:11,277 INFO L132 encePairwiseOnDemand]: 1061/1064 looper letters, 18 selfloop transitions, 2 changer transitions 0/958 dead transitions. [2022-04-18 16:33:11,277 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 958 transitions, 1969 flow [2022-04-18 16:33:11,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:11,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:11,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3060 transitions. [2022-04-18 16:33:11,283 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9586466165413534 [2022-04-18 16:33:11,283 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3060 transitions. [2022-04-18 16:33:11,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3060 transitions. [2022-04-18 16:33:11,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:11,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3060 transitions. [2022-04-18 16:33:11,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.0) internal successors, (3060), 3 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:11,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:11,293 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:11,293 INFO L186 Difference]: Start difference. First operand has 947 places, 959 transitions, 1931 flow. Second operand 3 states and 3060 transitions. [2022-04-18 16:33:11,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 948 places, 958 transitions, 1969 flow [2022-04-18 16:33:11,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 946 places, 958 transitions, 1965 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:11,304 INFO L242 Difference]: Finished difference. Result has 946 places, 958 transitions, 1929 flow [2022-04-18 16:33:11,306 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1925, PETRI_DIFFERENCE_MINUEND_PLACES=944, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1929, PETRI_PLACES=946, PETRI_TRANSITIONS=958} [2022-04-18 16:33:11,306 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -52 predicate places. [2022-04-18 16:33:11,306 INFO L478 AbstractCegarLoop]: Abstraction has has 946 places, 958 transitions, 1929 flow [2022-04-18 16:33:11,307 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:11,307 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:11,307 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:11,308 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:33:11,308 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:11,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:11,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1946153593, now seen corresponding path program 1 times [2022-04-18 16:33:11,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:11,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284698096] [2022-04-18 16:33:11,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:11,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:11,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:11,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:11,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284698096] [2022-04-18 16:33:11,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284698096] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:11,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:11,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:11,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844083163] [2022-04-18 16:33:11,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:11,343 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:11,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:11,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:11,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:11,346 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 1064 [2022-04-18 16:33:11,348 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 946 places, 958 transitions, 1929 flow. Second operand has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:11,348 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:11,348 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 1064 [2022-04-18 16:33:11,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:11,590 INFO L129 PetriNetUnfolder]: 55/1519 cut-off events. [2022-04-18 16:33:11,590 INFO L130 PetriNetUnfolder]: For 3/21 co-relation queries the response was YES. [2022-04-18 16:33:11,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1604 conditions, 1519 events. 55/1519 cut-off events. For 3/21 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6400 event pairs, 18 based on Foata normal form. 0/1317 useless extension candidates. Maximal degree in co-relation 1558. Up to 55 conditions per place. [2022-04-18 16:33:11,618 INFO L132 encePairwiseOnDemand]: 1061/1064 looper letters, 18 selfloop transitions, 2 changer transitions 0/957 dead transitions. [2022-04-18 16:33:11,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 947 places, 957 transitions, 1967 flow [2022-04-18 16:33:11,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:11,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:11,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3060 transitions. [2022-04-18 16:33:11,624 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9586466165413534 [2022-04-18 16:33:11,624 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3060 transitions. [2022-04-18 16:33:11,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3060 transitions. [2022-04-18 16:33:11,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:11,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3060 transitions. [2022-04-18 16:33:11,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.0) internal successors, (3060), 3 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:11,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:11,633 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:11,633 INFO L186 Difference]: Start difference. First operand has 946 places, 958 transitions, 1929 flow. Second operand 3 states and 3060 transitions. [2022-04-18 16:33:11,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 947 places, 957 transitions, 1967 flow [2022-04-18 16:33:11,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 945 places, 957 transitions, 1963 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:11,645 INFO L242 Difference]: Finished difference. Result has 945 places, 957 transitions, 1927 flow [2022-04-18 16:33:11,646 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1923, PETRI_DIFFERENCE_MINUEND_PLACES=943, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1927, PETRI_PLACES=945, PETRI_TRANSITIONS=957} [2022-04-18 16:33:11,647 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -53 predicate places. [2022-04-18 16:33:11,647 INFO L478 AbstractCegarLoop]: Abstraction has has 945 places, 957 transitions, 1927 flow [2022-04-18 16:33:11,648 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:11,648 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:11,648 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:11,648 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:33:11,648 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:11,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:11,649 INFO L85 PathProgramCache]: Analyzing trace with hash 269893481, now seen corresponding path program 1 times [2022-04-18 16:33:11,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:11,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325424608] [2022-04-18 16:33:11,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:11,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:11,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:11,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:11,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325424608] [2022-04-18 16:33:11,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325424608] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:11,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:11,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:11,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564761014] [2022-04-18 16:33:11,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:11,672 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:11,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:11,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:11,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:11,675 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1016 out of 1064 [2022-04-18 16:33:11,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 957 transitions, 1927 flow. Second operand has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:11,677 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:11,677 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1016 of 1064 [2022-04-18 16:33:11,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:11,864 INFO L129 PetriNetUnfolder]: 31/1158 cut-off events. [2022-04-18 16:33:11,864 INFO L130 PetriNetUnfolder]: For 6/12 co-relation queries the response was YES. [2022-04-18 16:33:11,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1201 conditions, 1158 events. 31/1158 cut-off events. For 6/12 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3236 event pairs, 6 based on Foata normal form. 0/1020 useless extension candidates. Maximal degree in co-relation 1155. Up to 28 conditions per place. [2022-04-18 16:33:11,889 INFO L132 encePairwiseOnDemand]: 1061/1064 looper letters, 15 selfloop transitions, 2 changer transitions 0/956 dead transitions. [2022-04-18 16:33:11,890 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 946 places, 956 transitions, 1959 flow [2022-04-18 16:33:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:11,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:11,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3066 transitions. [2022-04-18 16:33:11,895 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9605263157894737 [2022-04-18 16:33:11,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3066 transitions. [2022-04-18 16:33:11,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3066 transitions. [2022-04-18 16:33:11,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:11,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3066 transitions. [2022-04-18 16:33:11,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1022.0) internal successors, (3066), 3 states have internal predecessors, (3066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:11,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:11,904 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:11,904 INFO L186 Difference]: Start difference. First operand has 945 places, 957 transitions, 1927 flow. Second operand 3 states and 3066 transitions. [2022-04-18 16:33:11,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 946 places, 956 transitions, 1959 flow [2022-04-18 16:33:11,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 944 places, 956 transitions, 1955 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:11,915 INFO L242 Difference]: Finished difference. Result has 944 places, 956 transitions, 1925 flow [2022-04-18 16:33:11,916 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1921, PETRI_DIFFERENCE_MINUEND_PLACES=942, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=954, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1925, PETRI_PLACES=944, PETRI_TRANSITIONS=956} [2022-04-18 16:33:11,917 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -54 predicate places. [2022-04-18 16:33:11,917 INFO L478 AbstractCegarLoop]: Abstraction has has 944 places, 956 transitions, 1925 flow [2022-04-18 16:33:11,918 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:11,918 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:11,918 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:11,918 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:33:11,918 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:11,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:11,919 INFO L85 PathProgramCache]: Analyzing trace with hash -442532862, now seen corresponding path program 1 times [2022-04-18 16:33:11,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:11,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099562455] [2022-04-18 16:33:11,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:11,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:11,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:11,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:11,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099562455] [2022-04-18 16:33:11,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099562455] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:11,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:11,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:11,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658169839] [2022-04-18 16:33:11,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:11,941 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:11,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:11,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:11,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:11,944 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 1064 [2022-04-18 16:33:11,946 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 944 places, 956 transitions, 1925 flow. Second operand has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:11,946 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:11,946 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 1064 [2022-04-18 16:33:11,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:12,228 INFO L129 PetriNetUnfolder]: 51/1409 cut-off events. [2022-04-18 16:33:12,228 INFO L130 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-04-18 16:33:12,255 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1485 conditions, 1409 events. 51/1409 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5437 event pairs, 18 based on Foata normal form. 0/1221 useless extension candidates. Maximal degree in co-relation 1439. Up to 55 conditions per place. [2022-04-18 16:33:12,266 INFO L132 encePairwiseOnDemand]: 1061/1064 looper letters, 18 selfloop transitions, 2 changer transitions 0/955 dead transitions. [2022-04-18 16:33:12,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 945 places, 955 transitions, 1963 flow [2022-04-18 16:33:12,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:12,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:12,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3060 transitions. [2022-04-18 16:33:12,272 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9586466165413534 [2022-04-18 16:33:12,272 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3060 transitions. [2022-04-18 16:33:12,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3060 transitions. [2022-04-18 16:33:12,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:12,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3060 transitions. [2022-04-18 16:33:12,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.0) internal successors, (3060), 3 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,281 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,281 INFO L186 Difference]: Start difference. First operand has 944 places, 956 transitions, 1925 flow. Second operand 3 states and 3060 transitions. [2022-04-18 16:33:12,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 945 places, 955 transitions, 1963 flow [2022-04-18 16:33:12,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 943 places, 955 transitions, 1959 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:12,294 INFO L242 Difference]: Finished difference. Result has 943 places, 955 transitions, 1923 flow [2022-04-18 16:33:12,295 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1919, PETRI_DIFFERENCE_MINUEND_PLACES=941, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=953, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1923, PETRI_PLACES=943, PETRI_TRANSITIONS=955} [2022-04-18 16:33:12,295 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -55 predicate places. [2022-04-18 16:33:12,296 INFO L478 AbstractCegarLoop]: Abstraction has has 943 places, 955 transitions, 1923 flow [2022-04-18 16:33:12,297 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,297 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:12,297 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:12,297 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:33:12,297 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:12,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:12,298 INFO L85 PathProgramCache]: Analyzing trace with hash 744894006, now seen corresponding path program 1 times [2022-04-18 16:33:12,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:12,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351138328] [2022-04-18 16:33:12,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:12,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:12,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:12,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:12,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351138328] [2022-04-18 16:33:12,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351138328] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:12,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:12,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:12,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042527163] [2022-04-18 16:33:12,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:12,322 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:12,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:12,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:12,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:12,325 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 1064 [2022-04-18 16:33:12,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 943 places, 955 transitions, 1923 flow. Second operand has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:12,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 1064 [2022-04-18 16:33:12,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:12,650 INFO L129 PetriNetUnfolder]: 51/1370 cut-off events. [2022-04-18 16:33:12,650 INFO L130 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-04-18 16:33:12,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1446 conditions, 1370 events. 51/1370 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5345 event pairs, 18 based on Foata normal form. 0/1189 useless extension candidates. Maximal degree in co-relation 1400. Up to 55 conditions per place. [2022-04-18 16:33:12,668 INFO L132 encePairwiseOnDemand]: 1061/1064 looper letters, 18 selfloop transitions, 2 changer transitions 0/954 dead transitions. [2022-04-18 16:33:12,668 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 944 places, 954 transitions, 1961 flow [2022-04-18 16:33:12,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:12,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:12,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3060 transitions. [2022-04-18 16:33:12,673 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9586466165413534 [2022-04-18 16:33:12,673 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3060 transitions. [2022-04-18 16:33:12,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3060 transitions. [2022-04-18 16:33:12,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:12,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3060 transitions. [2022-04-18 16:33:12,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.0) internal successors, (3060), 3 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,680 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,680 INFO L186 Difference]: Start difference. First operand has 943 places, 955 transitions, 1923 flow. Second operand 3 states and 3060 transitions. [2022-04-18 16:33:12,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 944 places, 954 transitions, 1961 flow [2022-04-18 16:33:12,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 942 places, 954 transitions, 1957 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:12,691 INFO L242 Difference]: Finished difference. Result has 942 places, 954 transitions, 1921 flow [2022-04-18 16:33:12,692 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1917, PETRI_DIFFERENCE_MINUEND_PLACES=940, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=954, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=952, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1921, PETRI_PLACES=942, PETRI_TRANSITIONS=954} [2022-04-18 16:33:12,693 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -56 predicate places. [2022-04-18 16:33:12,693 INFO L478 AbstractCegarLoop]: Abstraction has has 942 places, 954 transitions, 1921 flow [2022-04-18 16:33:12,694 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,694 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:12,694 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:12,694 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:33:12,695 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:12,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:12,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1825426286, now seen corresponding path program 1 times [2022-04-18 16:33:12,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:12,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420385170] [2022-04-18 16:33:12,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:12,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:12,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:12,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:12,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420385170] [2022-04-18 16:33:12,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420385170] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:12,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:12,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:12,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220351941] [2022-04-18 16:33:12,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:12,718 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:12,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:12,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:12,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:12,721 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1016 out of 1064 [2022-04-18 16:33:12,723 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 942 places, 954 transitions, 1921 flow. Second operand has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,723 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:12,723 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1016 of 1064 [2022-04-18 16:33:12,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:12,867 INFO L129 PetriNetUnfolder]: 27/989 cut-off events. [2022-04-18 16:33:12,867 INFO L130 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-04-18 16:33:12,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 989 events. 27/989 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2389 event pairs, 6 based on Foata normal form. 0/883 useless extension candidates. Maximal degree in co-relation 982. Up to 27 conditions per place. [2022-04-18 16:33:12,883 INFO L132 encePairwiseOnDemand]: 1061/1064 looper letters, 14 selfloop transitions, 2 changer transitions 0/953 dead transitions. [2022-04-18 16:33:12,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 943 places, 953 transitions, 1951 flow [2022-04-18 16:33:12,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:12,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:12,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3065 transitions. [2022-04-18 16:33:12,888 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9602130325814536 [2022-04-18 16:33:12,888 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3065 transitions. [2022-04-18 16:33:12,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3065 transitions. [2022-04-18 16:33:12,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:12,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3065 transitions. [2022-04-18 16:33:12,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1021.6666666666666) internal successors, (3065), 3 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,896 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,896 INFO L186 Difference]: Start difference. First operand has 942 places, 954 transitions, 1921 flow. Second operand 3 states and 3065 transitions. [2022-04-18 16:33:12,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 943 places, 953 transitions, 1951 flow [2022-04-18 16:33:12,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 941 places, 953 transitions, 1947 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:12,907 INFO L242 Difference]: Finished difference. Result has 941 places, 953 transitions, 1919 flow [2022-04-18 16:33:12,909 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1915, PETRI_DIFFERENCE_MINUEND_PLACES=939, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=953, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=951, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1919, PETRI_PLACES=941, PETRI_TRANSITIONS=953} [2022-04-18 16:33:12,909 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -57 predicate places. [2022-04-18 16:33:12,909 INFO L478 AbstractCegarLoop]: Abstraction has has 941 places, 953 transitions, 1919 flow [2022-04-18 16:33:12,910 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,910 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:12,910 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:12,910 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:33:12,910 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:12,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:12,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1107019879, now seen corresponding path program 1 times [2022-04-18 16:33:12,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:12,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462807422] [2022-04-18 16:33:12,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:12,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:12,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:12,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:12,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462807422] [2022-04-18 16:33:12,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462807422] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:12,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:12,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:12,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724487556] [2022-04-18 16:33:12,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:12,933 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:12,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:12,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:12,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:12,936 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 1064 [2022-04-18 16:33:12,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 941 places, 953 transitions, 1919 flow. Second operand has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:12,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 1064 [2022-04-18 16:33:12,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:13,132 INFO L129 PetriNetUnfolder]: 47/1240 cut-off events. [2022-04-18 16:33:13,133 INFO L130 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-04-18 16:33:13,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1307 conditions, 1240 events. 47/1240 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3971 event pairs, 18 based on Foata normal form. 0/1083 useless extension candidates. Maximal degree in co-relation 1261. Up to 55 conditions per place. [2022-04-18 16:33:13,155 INFO L132 encePairwiseOnDemand]: 1061/1064 looper letters, 18 selfloop transitions, 2 changer transitions 0/952 dead transitions. [2022-04-18 16:33:13,155 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 942 places, 952 transitions, 1957 flow [2022-04-18 16:33:13,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:13,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:13,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3060 transitions. [2022-04-18 16:33:13,159 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9586466165413534 [2022-04-18 16:33:13,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3060 transitions. [2022-04-18 16:33:13,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3060 transitions. [2022-04-18 16:33:13,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:13,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3060 transitions. [2022-04-18 16:33:13,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.0) internal successors, (3060), 3 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:13,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:13,167 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:13,167 INFO L186 Difference]: Start difference. First operand has 941 places, 953 transitions, 1919 flow. Second operand 3 states and 3060 transitions. [2022-04-18 16:33:13,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 942 places, 952 transitions, 1957 flow [2022-04-18 16:33:13,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 940 places, 952 transitions, 1953 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:13,179 INFO L242 Difference]: Finished difference. Result has 940 places, 952 transitions, 1917 flow [2022-04-18 16:33:13,180 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1913, PETRI_DIFFERENCE_MINUEND_PLACES=938, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=952, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=950, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1917, PETRI_PLACES=940, PETRI_TRANSITIONS=952} [2022-04-18 16:33:13,181 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -58 predicate places. [2022-04-18 16:33:13,181 INFO L478 AbstractCegarLoop]: Abstraction has has 940 places, 952 transitions, 1917 flow [2022-04-18 16:33:13,181 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:13,182 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:13,182 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:13,182 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:33:13,182 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:13,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:13,182 INFO L85 PathProgramCache]: Analyzing trace with hash 983232768, now seen corresponding path program 1 times [2022-04-18 16:33:13,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:13,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724021258] [2022-04-18 16:33:13,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:13,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:13,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:13,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:13,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724021258] [2022-04-18 16:33:13,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724021258] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:13,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:13,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:13,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209204395] [2022-04-18 16:33:13,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:13,204 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:13,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:13,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:13,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:13,207 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 1064 [2022-04-18 16:33:13,209 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 940 places, 952 transitions, 1917 flow. Second operand has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:13,209 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:13,209 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 1064 [2022-04-18 16:33:13,209 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:13,403 INFO L129 PetriNetUnfolder]: 47/1201 cut-off events. [2022-04-18 16:33:13,403 INFO L130 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-04-18 16:33:13,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1268 conditions, 1201 events. 47/1201 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3749 event pairs, 18 based on Foata normal form. 0/1051 useless extension candidates. Maximal degree in co-relation 1222. Up to 55 conditions per place. [2022-04-18 16:33:13,424 INFO L132 encePairwiseOnDemand]: 1061/1064 looper letters, 18 selfloop transitions, 2 changer transitions 0/951 dead transitions. [2022-04-18 16:33:13,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 951 transitions, 1955 flow [2022-04-18 16:33:13,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:13,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:13,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3060 transitions. [2022-04-18 16:33:13,429 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9586466165413534 [2022-04-18 16:33:13,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3060 transitions. [2022-04-18 16:33:13,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3060 transitions. [2022-04-18 16:33:13,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:13,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3060 transitions. [2022-04-18 16:33:13,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.0) internal successors, (3060), 3 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:13,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:13,436 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:13,437 INFO L186 Difference]: Start difference. First operand has 940 places, 952 transitions, 1917 flow. Second operand 3 states and 3060 transitions. [2022-04-18 16:33:13,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 941 places, 951 transitions, 1955 flow [2022-04-18 16:33:13,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 939 places, 951 transitions, 1951 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:13,448 INFO L242 Difference]: Finished difference. Result has 939 places, 951 transitions, 1915 flow [2022-04-18 16:33:13,449 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1911, PETRI_DIFFERENCE_MINUEND_PLACES=937, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=951, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=949, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1915, PETRI_PLACES=939, PETRI_TRANSITIONS=951} [2022-04-18 16:33:13,450 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -59 predicate places. [2022-04-18 16:33:13,450 INFO L478 AbstractCegarLoop]: Abstraction has has 939 places, 951 transitions, 1915 flow [2022-04-18 16:33:13,451 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1014.3333333333334) internal successors, (3043), 3 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:13,451 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:13,451 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:13,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:33:13,451 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:13,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:13,452 INFO L85 PathProgramCache]: Analyzing trace with hash 97933549, now seen corresponding path program 1 times [2022-04-18 16:33:13,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:13,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906722181] [2022-04-18 16:33:13,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:13,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:13,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:13,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:13,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906722181] [2022-04-18 16:33:13,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906722181] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:13,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:13,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:13,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944689174] [2022-04-18 16:33:13,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:13,481 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:13,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:13,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:13,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:13,485 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1010 out of 1064 [2022-04-18 16:33:13,487 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 939 places, 951 transitions, 1915 flow. Second operand has 3 states, 3 states have (on average 1011.3333333333334) internal successors, (3034), 3 states have internal predecessors, (3034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:13,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:13,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1010 of 1064 [2022-04-18 16:33:13,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:14,012 INFO L129 PetriNetUnfolder]: 119/2598 cut-off events. [2022-04-18 16:33:14,012 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-04-18 16:33:14,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2770 conditions, 2598 events. 119/2598 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 14774 event pairs, 60 based on Foata normal form. 0/2224 useless extension candidates. Maximal degree in co-relation 2724. Up to 148 conditions per place. [2022-04-18 16:33:14,087 INFO L132 encePairwiseOnDemand]: 1061/1064 looper letters, 21 selfloop transitions, 2 changer transitions 0/950 dead transitions. [2022-04-18 16:33:14,088 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 940 places, 950 transitions, 1959 flow [2022-04-18 16:33:14,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:14,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3054 transitions. [2022-04-18 16:33:14,092 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.956766917293233 [2022-04-18 16:33:14,092 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3054 transitions. [2022-04-18 16:33:14,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3054 transitions. [2022-04-18 16:33:14,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:14,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3054 transitions. [2022-04-18 16:33:14,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1018.0) internal successors, (3054), 3 states have internal predecessors, (3054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:14,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:14,099 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1064.0) internal successors, (4256), 4 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:14,099 INFO L186 Difference]: Start difference. First operand has 939 places, 951 transitions, 1915 flow. Second operand 3 states and 3054 transitions. [2022-04-18 16:33:14,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 940 places, 950 transitions, 1959 flow [2022-04-18 16:33:14,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 938 places, 950 transitions, 1955 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:14,110 INFO L242 Difference]: Finished difference. Result has 938 places, 950 transitions, 1913 flow [2022-04-18 16:33:14,111 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1064, PETRI_DIFFERENCE_MINUEND_FLOW=1909, PETRI_DIFFERENCE_MINUEND_PLACES=936, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=950, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=948, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1913, PETRI_PLACES=938, PETRI_TRANSITIONS=950} [2022-04-18 16:33:14,111 INFO L335 CegarLoopForPetriNet]: 998 programPoint places, -60 predicate places. [2022-04-18 16:33:14,111 INFO L478 AbstractCegarLoop]: Abstraction has has 938 places, 950 transitions, 1913 flow [2022-04-18 16:33:14,112 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1011.3333333333334) internal successors, (3034), 3 states have internal predecessors, (3034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:14,112 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:14,112 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:14,113 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:33:14,113 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-04-18 16:33:14,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:14,113 INFO L85 PathProgramCache]: Analyzing trace with hash -905282539, now seen corresponding path program 1 times [2022-04-18 16:33:14,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:14,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861850855] [2022-04-18 16:33:14,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:14,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:14,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:14,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:14,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861850855] [2022-04-18 16:33:14,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861850855] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:14,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:14,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:14,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960773199] [2022-04-18 16:33:14,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:14,198 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:14,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:14,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:14,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:14,202 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 860 out of 1064 [2022-04-18 16:33:14,205 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 938 places, 950 transitions, 1913 flow. Second operand has 6 states, 6 states have (on average 861.8333333333334) internal successors, (5171), 6 states have internal predecessors, (5171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:14,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:14,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 860 of 1064 [2022-04-18 16:33:14,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand