./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-time-subst.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-time-subst.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 fbdf820325bad974beb5f3994ba78abc0ad853157d83dd91eac05e8acb05e8a2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:33:33,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:33:33,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:33:33,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:33:33,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:33:33,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:33:33,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:33:33,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:33:33,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:33:33,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:33:33,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:33:33,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:33:33,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:33:33,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:33:33,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:33:33,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:33:33,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:33:33,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:33:33,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:33:33,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:33:33,056 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:33:33,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:33:33,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:33:33,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:33:33,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:33:33,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:33:33,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:33:33,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:33:33,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:33:33,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:33:33,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:33:33,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:33:33,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:33:33,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:33:33,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:33:33,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:33:33,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:33:33,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:33:33,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:33:33,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:33:33,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:33:33,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:33:33,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:33:33,098 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:33:33,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:33:33,098 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:33:33,098 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:33:33,099 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:33:33,099 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:33:33,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:33:33,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:33:33,100 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:33:33,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:33:33,100 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:33:33,100 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:33:33,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:33:33,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:33:33,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:33:33,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:33:33,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:33:33,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:33:33,101 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:33:33,101 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:33:33,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:33:33,102 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:33:33,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:33:33,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:33:33,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:33:33,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:33:33,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:33,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:33:33,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:33:33,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:33:33,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:33:33,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:33:33,103 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:33:33,104 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:33:33,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:33:33,104 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbdf820325bad974beb5f3994ba78abc0ad853157d83dd91eac05e8acb05e8a2 [2022-04-18 16:33:33,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:33:33,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:33:33,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:33:33,271 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:33:33,272 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:33:33,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-time-subst.wvr.c [2022-04-18 16:33:33,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1afeae84f/3b828fc9cdb1492da449cd6ebf8c4401/FLAGe3fe7329f [2022-04-18 16:33:33,694 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:33:33,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-time-subst.wvr.c [2022-04-18 16:33:33,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1afeae84f/3b828fc9cdb1492da449cd6ebf8c4401/FLAGe3fe7329f [2022-04-18 16:33:33,708 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1afeae84f/3b828fc9cdb1492da449cd6ebf8c4401 [2022-04-18 16:33:33,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:33:33,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:33:33,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:33,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:33:33,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:33:33,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:33" (1/1) ... [2022-04-18 16:33:33,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788a74ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:33, skipping insertion in model container [2022-04-18 16:33:33,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:33" (1/1) ... [2022-04-18 16:33:33,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:33:33,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:33:33,896 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-time-subst.wvr.c[2879,2892] [2022-04-18 16:33:33,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:33,903 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:33:33,933 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-time-subst.wvr.c[2879,2892] [2022-04-18 16:33:33,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:33,944 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:33:33,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:33 WrapperNode [2022-04-18 16:33:33,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:33,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:33,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:33:33,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:33:33,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:33" (1/1) ... [2022-04-18 16:33:33,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:33" (1/1) ... [2022-04-18 16:33:33,982 INFO L137 Inliner]: procedures = 23, calls = 39, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 343 [2022-04-18 16:33:33,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:33,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:33:33,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:33:33,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:33:33,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:33" (1/1) ... [2022-04-18 16:33:33,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:33" (1/1) ... [2022-04-18 16:33:34,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:33" (1/1) ... [2022-04-18 16:33:34,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:33" (1/1) ... [2022-04-18 16:33:34,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:33" (1/1) ... [2022-04-18 16:33:34,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:33" (1/1) ... [2022-04-18 16:33:34,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:33" (1/1) ... [2022-04-18 16:33:34,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:33:34,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:33:34,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:33:34,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:33:34,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:33" (1/1) ... [2022-04-18 16:33:34,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:34,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:33:34,061 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 16:33:34,064 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 16:33:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:33:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:33:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:33:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:33:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:33:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:33:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:33:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:33:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:33:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:33:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:33:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:33:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:33:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:33:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:33:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:33:34,091 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 16:33:34,166 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:33:34,167 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:33:34,546 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:33:34,760 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:33:34,760 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 16:33:34,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:34 BoogieIcfgContainer [2022-04-18 16:33:34,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:33:34,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:33:34,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:33:34,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:33:34,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:33:33" (1/3) ... [2022-04-18 16:33:34,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7797f471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:34, skipping insertion in model container [2022-04-18 16:33:34,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:33" (2/3) ... [2022-04-18 16:33:34,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7797f471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:34, skipping insertion in model container [2022-04-18 16:33:34,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:34" (3/3) ... [2022-04-18 16:33:34,768 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-time-subst.wvr.c [2022-04-18 16:33:34,775 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:33:34,787 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:33:34,788 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2022-04-18 16:33:34,788 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:33:34,850 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 16:33:34,891 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:33:34,897 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 16:33:34,897 INFO L341 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2022-04-18 16:33:34,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 228 places, 221 transitions, 466 flow [2022-04-18 16:33:34,975 INFO L129 PetriNetUnfolder]: 3/218 cut-off events. [2022-04-18 16:33:34,975 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:33:34,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 218 events. 3/218 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 188 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-04-18 16:33:34,978 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 221 transitions, 466 flow [2022-04-18 16:33:34,986 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 192 transitions, 402 flow [2022-04-18 16:33:34,993 INFO L129 PetriNetUnfolder]: 0/28 cut-off events. [2022-04-18 16:33:34,993 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:33:34,994 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:34,994 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] [2022-04-18 16:33:34,995 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-04-18 16:33:34,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:35,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1579165646, now seen corresponding path program 1 times [2022-04-18 16:33:35,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:35,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076812712] [2022-04-18 16:33:35,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:35,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:35,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:35,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:35,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076812712] [2022-04-18 16:33:35,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076812712] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:35,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:35,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:35,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508995088] [2022-04-18 16:33:35,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:35,163 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:35,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:35,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:35,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:35,185 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 221 [2022-04-18 16:33:35,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 192 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:35,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:35,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 221 [2022-04-18 16:33:35,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:35,276 INFO L129 PetriNetUnfolder]: 15/218 cut-off events. [2022-04-18 16:33:35,277 INFO L130 PetriNetUnfolder]: For 29/36 co-relation queries the response was YES. [2022-04-18 16:33:35,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 218 events. 15/218 cut-off events. For 29/36 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 241 event pairs, 15 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 143. Up to 40 conditions per place. [2022-04-18 16:33:35,281 INFO L132 encePairwiseOnDemand]: 194/221 looper letters, 12 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2022-04-18 16:33:35,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 167 transitions, 380 flow [2022-04-18 16:33:35,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:35,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 579 transitions. [2022-04-18 16:33:35,298 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8733031674208145 [2022-04-18 16:33:35,299 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 579 transitions. [2022-04-18 16:33:35,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 579 transitions. [2022-04-18 16:33:35,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:35,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 579 transitions. [2022-04-18 16:33:35,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 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 16:33:35,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:35,317 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:35,319 INFO L186 Difference]: Start difference. First operand has 202 places, 192 transitions, 402 flow. Second operand 3 states and 579 transitions. [2022-04-18 16:33:35,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 167 transitions, 380 flow [2022-04-18 16:33:35,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 167 transitions, 368 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-04-18 16:33:35,327 INFO L242 Difference]: Finished difference. Result has 173 places, 167 transitions, 344 flow [2022-04-18 16:33:35,328 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=173, PETRI_TRANSITIONS=167} [2022-04-18 16:33:35,332 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -29 predicate places. [2022-04-18 16:33:35,333 INFO L478 AbstractCegarLoop]: Abstraction has has 173 places, 167 transitions, 344 flow [2022-04-18 16:33:35,334 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:35,334 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:35,334 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] [2022-04-18 16:33:35,335 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:33:35,342 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-04-18 16:33:35,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:35,342 INFO L85 PathProgramCache]: Analyzing trace with hash 308945149, now seen corresponding path program 1 times [2022-04-18 16:33:35,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:35,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610316599] [2022-04-18 16:33:35,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:35,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:35,415 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 16:33:35,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:35,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610316599] [2022-04-18 16:33:35,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610316599] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:35,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:35,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:35,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963718544] [2022-04-18 16:33:35,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:35,417 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:35,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:35,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:35,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:35,418 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 221 [2022-04-18 16:33:35,419 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 167 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:35,419 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:35,419 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 221 [2022-04-18 16:33:35,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:35,480 INFO L129 PetriNetUnfolder]: 15/217 cut-off events. [2022-04-18 16:33:35,481 INFO L130 PetriNetUnfolder]: For 7/14 co-relation queries the response was YES. [2022-04-18 16:33:35,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 217 events. 15/217 cut-off events. For 7/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 239 event pairs, 15 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 233. Up to 40 conditions per place. [2022-04-18 16:33:35,483 INFO L132 encePairwiseOnDemand]: 218/221 looper letters, 12 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2022-04-18 16:33:35,483 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 166 transitions, 370 flow [2022-04-18 16:33:35,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:35,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:35,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2022-04-18 16:33:35,485 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8371040723981901 [2022-04-18 16:33:35,486 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 555 transitions. [2022-04-18 16:33:35,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 555 transitions. [2022-04-18 16:33:35,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:35,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 555 transitions. [2022-04-18 16:33:35,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 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 16:33:35,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:35,489 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:35,490 INFO L186 Difference]: Start difference. First operand has 173 places, 167 transitions, 344 flow. Second operand 3 states and 555 transitions. [2022-04-18 16:33:35,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 166 transitions, 370 flow [2022-04-18 16:33:35,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 166 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:35,496 INFO L242 Difference]: Finished difference. Result has 172 places, 166 transitions, 342 flow [2022-04-18 16:33:35,496 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=172, PETRI_TRANSITIONS=166} [2022-04-18 16:33:35,497 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -30 predicate places. [2022-04-18 16:33:35,497 INFO L478 AbstractCegarLoop]: Abstraction has has 172 places, 166 transitions, 342 flow [2022-04-18 16:33:35,498 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:35,498 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:35,498 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] [2022-04-18 16:33:35,498 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:33:35,499 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-04-18 16:33:35,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:35,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1825142791, now seen corresponding path program 1 times [2022-04-18 16:33:35,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:35,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354720122] [2022-04-18 16:33:35,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:35,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:35,541 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 16:33:35,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:35,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354720122] [2022-04-18 16:33:35,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354720122] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:35,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:35,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:35,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35843502] [2022-04-18 16:33:35,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:35,543 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:35,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:35,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:35,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:35,544 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 221 [2022-04-18 16:33:35,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 166 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:35,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:35,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 221 [2022-04-18 16:33:35,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:35,588 INFO L129 PetriNetUnfolder]: 15/216 cut-off events. [2022-04-18 16:33:35,588 INFO L130 PetriNetUnfolder]: For 7/14 co-relation queries the response was YES. [2022-04-18 16:33:35,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 216 events. 15/216 cut-off events. For 7/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 237 event pairs, 15 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 225. Up to 40 conditions per place. [2022-04-18 16:33:35,589 INFO L132 encePairwiseOnDemand]: 218/221 looper letters, 12 selfloop transitions, 2 changer transitions 0/165 dead transitions. [2022-04-18 16:33:35,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 165 transitions, 368 flow [2022-04-18 16:33:35,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:35,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:35,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2022-04-18 16:33:35,592 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8371040723981901 [2022-04-18 16:33:35,592 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 555 transitions. [2022-04-18 16:33:35,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 555 transitions. [2022-04-18 16:33:35,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:35,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 555 transitions. [2022-04-18 16:33:35,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 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 16:33:35,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:35,595 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:35,595 INFO L186 Difference]: Start difference. First operand has 172 places, 166 transitions, 342 flow. Second operand 3 states and 555 transitions. [2022-04-18 16:33:35,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 165 transitions, 368 flow [2022-04-18 16:33:35,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 165 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:35,599 INFO L242 Difference]: Finished difference. Result has 171 places, 165 transitions, 340 flow [2022-04-18 16:33:35,599 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=171, PETRI_TRANSITIONS=165} [2022-04-18 16:33:35,601 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -31 predicate places. [2022-04-18 16:33:35,601 INFO L478 AbstractCegarLoop]: Abstraction has has 171 places, 165 transitions, 340 flow [2022-04-18 16:33:35,602 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:35,602 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:35,602 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] [2022-04-18 16:33:35,602 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:33:35,602 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-04-18 16:33:35,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:35,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1879060253, now seen corresponding path program 1 times [2022-04-18 16:33:35,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:35,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14494313] [2022-04-18 16:33:35,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:35,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:35,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:35,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:35,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14494313] [2022-04-18 16:33:35,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14494313] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:35,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:35,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:35,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374347695] [2022-04-18 16:33:35,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:35,650 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:35,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:35,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:35,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:35,654 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 221 [2022-04-18 16:33:35,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 165 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:35,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:35,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 221 [2022-04-18 16:33:35,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:35,707 INFO L129 PetriNetUnfolder]: 15/215 cut-off events. [2022-04-18 16:33:35,708 INFO L130 PetriNetUnfolder]: For 7/14 co-relation queries the response was YES. [2022-04-18 16:33:35,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 215 events. 15/215 cut-off events. For 7/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 236 event pairs, 15 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 217. Up to 40 conditions per place. [2022-04-18 16:33:35,710 INFO L132 encePairwiseOnDemand]: 218/221 looper letters, 12 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-04-18 16:33:35,710 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 164 transitions, 366 flow [2022-04-18 16:33:35,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:35,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:35,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2022-04-18 16:33:35,712 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8371040723981901 [2022-04-18 16:33:35,713 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 555 transitions. [2022-04-18 16:33:35,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 555 transitions. [2022-04-18 16:33:35,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:35,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 555 transitions. [2022-04-18 16:33:35,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 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 16:33:35,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:35,718 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:35,719 INFO L186 Difference]: Start difference. First operand has 171 places, 165 transitions, 340 flow. Second operand 3 states and 555 transitions. [2022-04-18 16:33:35,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 164 transitions, 366 flow [2022-04-18 16:33:35,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 164 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:35,724 INFO L242 Difference]: Finished difference. Result has 170 places, 164 transitions, 338 flow [2022-04-18 16:33:35,725 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=170, PETRI_TRANSITIONS=164} [2022-04-18 16:33:35,726 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -32 predicate places. [2022-04-18 16:33:35,726 INFO L478 AbstractCegarLoop]: Abstraction has has 170 places, 164 transitions, 338 flow [2022-04-18 16:33:35,726 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:35,727 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:35,727 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 16:33:35,727 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:33:35,727 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-04-18 16:33:35,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:35,728 INFO L85 PathProgramCache]: Analyzing trace with hash 2103782410, now seen corresponding path program 1 times [2022-04-18 16:33:35,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:35,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329264906] [2022-04-18 16:33:35,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:35,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:35,784 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 16:33:35,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:35,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329264906] [2022-04-18 16:33:35,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329264906] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:35,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:35,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:35,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675519459] [2022-04-18 16:33:35,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:35,786 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:35,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:35,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:35,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:35,787 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 221 [2022-04-18 16:33:35,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 164 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:35,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:35,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 221 [2022-04-18 16:33:35,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:35,828 INFO L129 PetriNetUnfolder]: 15/214 cut-off events. [2022-04-18 16:33:35,829 INFO L130 PetriNetUnfolder]: For 7/14 co-relation queries the response was YES. [2022-04-18 16:33:35,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 214 events. 15/214 cut-off events. For 7/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 235 event pairs, 15 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 209. Up to 40 conditions per place. [2022-04-18 16:33:35,830 INFO L132 encePairwiseOnDemand]: 218/221 looper letters, 12 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2022-04-18 16:33:35,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 163 transitions, 364 flow [2022-04-18 16:33:35,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:35,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:35,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2022-04-18 16:33:35,832 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8371040723981901 [2022-04-18 16:33:35,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 555 transitions. [2022-04-18 16:33:35,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 555 transitions. [2022-04-18 16:33:35,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:35,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 555 transitions. [2022-04-18 16:33:35,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 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 16:33:35,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:35,837 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:35,837 INFO L186 Difference]: Start difference. First operand has 170 places, 164 transitions, 338 flow. Second operand 3 states and 555 transitions. [2022-04-18 16:33:35,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 163 transitions, 364 flow [2022-04-18 16:33:35,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 163 transitions, 360 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:35,840 INFO L242 Difference]: Finished difference. Result has 169 places, 163 transitions, 336 flow [2022-04-18 16:33:35,841 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=169, PETRI_TRANSITIONS=163} [2022-04-18 16:33:35,841 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -33 predicate places. [2022-04-18 16:33:35,842 INFO L478 AbstractCegarLoop]: Abstraction has has 169 places, 163 transitions, 336 flow [2022-04-18 16:33:35,842 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:35,842 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:35,842 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] [2022-04-18 16:33:35,843 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:33:35,843 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-04-18 16:33:35,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:35,843 INFO L85 PathProgramCache]: Analyzing trace with hash 624977710, now seen corresponding path program 1 times [2022-04-18 16:33:35,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:35,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751271245] [2022-04-18 16:33:35,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:35,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:35,873 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 16:33:35,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:35,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751271245] [2022-04-18 16:33:35,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751271245] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:35,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:35,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:35,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108796125] [2022-04-18 16:33:35,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:35,875 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:35,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:35,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:35,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:35,877 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 221 [2022-04-18 16:33:35,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 163 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:35,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:35,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 221 [2022-04-18 16:33:35,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:35,914 INFO L129 PetriNetUnfolder]: 15/213 cut-off events. [2022-04-18 16:33:35,914 INFO L130 PetriNetUnfolder]: For 7/14 co-relation queries the response was YES. [2022-04-18 16:33:35,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 213 events. 15/213 cut-off events. For 7/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 233 event pairs, 15 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 201. Up to 40 conditions per place. [2022-04-18 16:33:35,915 INFO L132 encePairwiseOnDemand]: 218/221 looper letters, 12 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2022-04-18 16:33:35,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 162 transitions, 362 flow [2022-04-18 16:33:35,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:35,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:35,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2022-04-18 16:33:35,917 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8371040723981901 [2022-04-18 16:33:35,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 555 transitions. [2022-04-18 16:33:35,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 555 transitions. [2022-04-18 16:33:35,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:35,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 555 transitions. [2022-04-18 16:33:35,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 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 16:33:35,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:35,921 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:35,921 INFO L186 Difference]: Start difference. First operand has 169 places, 163 transitions, 336 flow. Second operand 3 states and 555 transitions. [2022-04-18 16:33:35,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 162 transitions, 362 flow [2022-04-18 16:33:35,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 162 transitions, 358 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:35,924 INFO L242 Difference]: Finished difference. Result has 168 places, 162 transitions, 334 flow [2022-04-18 16:33:35,924 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=168, PETRI_TRANSITIONS=162} [2022-04-18 16:33:35,925 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -34 predicate places. [2022-04-18 16:33:35,925 INFO L478 AbstractCegarLoop]: Abstraction has has 168 places, 162 transitions, 334 flow [2022-04-18 16:33:35,926 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:35,926 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:35,926 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] [2022-04-18 16:33:35,926 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:33:35,927 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-04-18 16:33:35,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:35,927 INFO L85 PathProgramCache]: Analyzing trace with hash 62662545, now seen corresponding path program 1 times [2022-04-18 16:33:35,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:35,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202675598] [2022-04-18 16:33:35,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:35,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:35,951 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 16:33:35,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:35,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202675598] [2022-04-18 16:33:35,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202675598] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:35,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:35,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:35,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103814144] [2022-04-18 16:33:35,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:35,952 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:35,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:35,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:35,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:35,954 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 221 [2022-04-18 16:33:35,954 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 162 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 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 16:33:35,954 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:35,954 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 221 [2022-04-18 16:33:35,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:35,988 INFO L129 PetriNetUnfolder]: 15/212 cut-off events. [2022-04-18 16:33:35,989 INFO L130 PetriNetUnfolder]: For 7/14 co-relation queries the response was YES. [2022-04-18 16:33:35,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 212 events. 15/212 cut-off events. For 7/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 231 event pairs, 15 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 196. Up to 43 conditions per place. [2022-04-18 16:33:35,990 INFO L132 encePairwiseOnDemand]: 218/221 looper letters, 15 selfloop transitions, 2 changer transitions 0/161 dead transitions. [2022-04-18 16:33:35,990 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 161 transitions, 366 flow [2022-04-18 16:33:35,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:35,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:35,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 549 transitions. [2022-04-18 16:33:35,992 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8280542986425339 [2022-04-18 16:33:35,992 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 549 transitions. [2022-04-18 16:33:35,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 549 transitions. [2022-04-18 16:33:35,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:35,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 549 transitions. [2022-04-18 16:33:35,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 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 16:33:35,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:35,996 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:35,996 INFO L186 Difference]: Start difference. First operand has 168 places, 162 transitions, 334 flow. Second operand 3 states and 549 transitions. [2022-04-18 16:33:35,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 161 transitions, 366 flow [2022-04-18 16:33:35,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 161 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:36,005 INFO L242 Difference]: Finished difference. Result has 167 places, 161 transitions, 332 flow [2022-04-18 16:33:36,005 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=167, PETRI_TRANSITIONS=161} [2022-04-18 16:33:36,006 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -35 predicate places. [2022-04-18 16:33:36,006 INFO L478 AbstractCegarLoop]: Abstraction has has 167 places, 161 transitions, 332 flow [2022-04-18 16:33:36,006 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 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 16:33:36,007 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:36,007 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] [2022-04-18 16:33:36,007 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:33:36,007 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-04-18 16:33:36,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:36,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1647517545, now seen corresponding path program 1 times [2022-04-18 16:33:36,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:36,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172220181] [2022-04-18 16:33:36,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:36,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:36,031 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 16:33:36,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:36,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172220181] [2022-04-18 16:33:36,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172220181] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:36,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:36,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:36,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700792906] [2022-04-18 16:33:36,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:36,033 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:36,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:36,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:36,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:36,034 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 221 [2022-04-18 16:33:36,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 161 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 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 16:33:36,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:36,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 221 [2022-04-18 16:33:36,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:36,069 INFO L129 PetriNetUnfolder]: 15/211 cut-off events. [2022-04-18 16:33:36,070 INFO L130 PetriNetUnfolder]: For 7/14 co-relation queries the response was YES. [2022-04-18 16:33:36,071 INFO L84 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 211 events. 15/211 cut-off events. For 7/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 230 event pairs, 15 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 191. Up to 46 conditions per place. [2022-04-18 16:33:36,071 INFO L132 encePairwiseOnDemand]: 218/221 looper letters, 18 selfloop transitions, 2 changer transitions 0/160 dead transitions. [2022-04-18 16:33:36,071 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 160 transitions, 370 flow [2022-04-18 16:33:36,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:36,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:36,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 543 transitions. [2022-04-18 16:33:36,073 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8190045248868778 [2022-04-18 16:33:36,073 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 543 transitions. [2022-04-18 16:33:36,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 543 transitions. [2022-04-18 16:33:36,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:36,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 543 transitions. [2022-04-18 16:33:36,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 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 16:33:36,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:36,076 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:36,076 INFO L186 Difference]: Start difference. First operand has 167 places, 161 transitions, 332 flow. Second operand 3 states and 543 transitions. [2022-04-18 16:33:36,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 160 transitions, 370 flow [2022-04-18 16:33:36,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 160 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:36,078 INFO L242 Difference]: Finished difference. Result has 166 places, 160 transitions, 330 flow [2022-04-18 16:33:36,079 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=166, PETRI_TRANSITIONS=160} [2022-04-18 16:33:36,079 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -36 predicate places. [2022-04-18 16:33:36,079 INFO L478 AbstractCegarLoop]: Abstraction has has 166 places, 160 transitions, 330 flow [2022-04-18 16:33:36,080 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 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 16:33:36,080 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:36,080 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] [2022-04-18 16:33:36,080 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:33:36,080 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-04-18 16:33:36,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:36,081 INFO L85 PathProgramCache]: Analyzing trace with hash 446512505, now seen corresponding path program 1 times [2022-04-18 16:33:36,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:36,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644016134] [2022-04-18 16:33:36,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:36,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:36,106 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 16:33:36,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:36,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644016134] [2022-04-18 16:33:36,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644016134] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:36,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:36,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:36,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558207676] [2022-04-18 16:33:36,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:36,108 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:36,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:36,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:36,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:36,109 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 221 [2022-04-18 16:33:36,110 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 160 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 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 16:33:36,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:36,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 221 [2022-04-18 16:33:36,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:36,146 INFO L129 PetriNetUnfolder]: 15/210 cut-off events. [2022-04-18 16:33:36,147 INFO L130 PetriNetUnfolder]: For 7/14 co-relation queries the response was YES. [2022-04-18 16:33:36,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 210 events. 15/210 cut-off events. For 7/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 227 event pairs, 15 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 182. Up to 45 conditions per place. [2022-04-18 16:33:36,148 INFO L132 encePairwiseOnDemand]: 218/221 looper letters, 17 selfloop transitions, 2 changer transitions 0/159 dead transitions. [2022-04-18 16:33:36,148 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 159 transitions, 366 flow [2022-04-18 16:33:36,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:36,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:36,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 542 transitions. [2022-04-18 16:33:36,150 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8174962292609351 [2022-04-18 16:33:36,150 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 542 transitions. [2022-04-18 16:33:36,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 542 transitions. [2022-04-18 16:33:36,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:36,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 542 transitions. [2022-04-18 16:33:36,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 0 states have call successors, (0), 0 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 16:33:36,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:36,153 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:36,153 INFO L186 Difference]: Start difference. First operand has 166 places, 160 transitions, 330 flow. Second operand 3 states and 542 transitions. [2022-04-18 16:33:36,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 159 transitions, 366 flow [2022-04-18 16:33:36,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 159 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:36,157 INFO L242 Difference]: Finished difference. Result has 165 places, 159 transitions, 328 flow [2022-04-18 16:33:36,157 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=165, PETRI_TRANSITIONS=159} [2022-04-18 16:33:36,158 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -37 predicate places. [2022-04-18 16:33:36,158 INFO L478 AbstractCegarLoop]: Abstraction has has 165 places, 159 transitions, 328 flow [2022-04-18 16:33:36,158 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 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 16:33:36,159 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:36,159 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 16:33:36,159 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:33:36,159 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-04-18 16:33:36,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:36,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1280405984, now seen corresponding path program 1 times [2022-04-18 16:33:36,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:36,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454181770] [2022-04-18 16:33:36,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:36,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:36,257 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 16:33:36,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:36,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454181770] [2022-04-18 16:33:36,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454181770] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:36,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:36,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:36,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757403684] [2022-04-18 16:33:36,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:36,260 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:36,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:36,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:36,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:36,262 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 221 [2022-04-18 16:33:36,263 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 159 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 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 16:33:36,263 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:36,263 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 221 [2022-04-18 16:33:36,263 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:36,400 INFO L129 PetriNetUnfolder]: 117/391 cut-off events. [2022-04-18 16:33:36,400 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:33:36,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 391 events. 117/391 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 813 event pairs, 22 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 534. Up to 118 conditions per place. [2022-04-18 16:33:36,402 INFO L132 encePairwiseOnDemand]: 216/221 looper letters, 38 selfloop transitions, 4 changer transitions 0/170 dead transitions. [2022-04-18 16:33:36,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 170 transitions, 434 flow [2022-04-18 16:33:36,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:33:36,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:33:36,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1015 transitions. [2022-04-18 16:33:36,404 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7654600301659125 [2022-04-18 16:33:36,405 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1015 transitions. [2022-04-18 16:33:36,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1015 transitions. [2022-04-18 16:33:36,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:36,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1015 transitions. [2022-04-18 16:33:36,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.16666666666666) internal successors, (1015), 6 states have internal predecessors, (1015), 0 states have call successors, (0), 0 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 16:33:36,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 221.0) internal successors, (1547), 7 states have internal predecessors, (1547), 0 states have call successors, (0), 0 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 16:33:36,409 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 221.0) internal successors, (1547), 7 states have internal predecessors, (1547), 0 states have call successors, (0), 0 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 16:33:36,409 INFO L186 Difference]: Start difference. First operand has 165 places, 159 transitions, 328 flow. Second operand 6 states and 1015 transitions. [2022-04-18 16:33:36,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 170 transitions, 434 flow [2022-04-18 16:33:36,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 170 transitions, 430 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:36,411 INFO L242 Difference]: Finished difference. Result has 167 places, 158 transitions, 330 flow [2022-04-18 16:33:36,412 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=167, PETRI_TRANSITIONS=158} [2022-04-18 16:33:36,412 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -35 predicate places. [2022-04-18 16:33:36,412 INFO L478 AbstractCegarLoop]: Abstraction has has 167 places, 158 transitions, 330 flow [2022-04-18 16:33:36,413 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 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 16:33:36,413 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:36,413 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] [2022-04-18 16:33:36,413 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:33:36,413 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-04-18 16:33:36,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:36,414 INFO L85 PathProgramCache]: Analyzing trace with hash 567142335, now seen corresponding path program 1 times [2022-04-18 16:33:36,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:36,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895648908] [2022-04-18 16:33:36,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:36,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:36,491 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 16:33:36,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:36,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895648908] [2022-04-18 16:33:36,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895648908] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:36,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:36,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:36,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773220253] [2022-04-18 16:33:36,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:36,493 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:36,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:36,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:36,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:36,494 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 221 [2022-04-18 16:33:36,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 158 transitions, 330 flow. Second operand has 6 states, 6 states have (on average 165.16666666666666) internal successors, (991), 6 states have internal predecessors, (991), 0 states have call successors, (0), 0 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 16:33:36,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:36,495 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 221 [2022-04-18 16:33:36,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:36,602 INFO L129 PetriNetUnfolder]: 106/374 cut-off events. [2022-04-18 16:33:36,603 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-04-18 16:33:36,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 374 events. 106/374 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 729 event pairs, 79 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 193. Up to 146 conditions per place. [2022-04-18 16:33:36,605 INFO L132 encePairwiseOnDemand]: 216/221 looper letters, 33 selfloop transitions, 4 changer transitions 0/165 dead transitions. [2022-04-18 16:33:36,605 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 165 transitions, 418 flow [2022-04-18 16:33:36,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:33:36,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:33:36,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1010 transitions. [2022-04-18 16:33:36,608 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7616892911010558 [2022-04-18 16:33:36,608 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1010 transitions. [2022-04-18 16:33:36,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1010 transitions. [2022-04-18 16:33:36,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:36,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1010 transitions. [2022-04-18 16:33:36,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 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 16:33:36,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 221.0) internal successors, (1547), 7 states have internal predecessors, (1547), 0 states have call successors, (0), 0 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 16:33:36,612 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 221.0) internal successors, (1547), 7 states have internal predecessors, (1547), 0 states have call successors, (0), 0 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 16:33:36,612 INFO L186 Difference]: Start difference. First operand has 167 places, 158 transitions, 330 flow. Second operand 6 states and 1010 transitions. [2022-04-18 16:33:36,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 165 transitions, 418 flow [2022-04-18 16:33:36,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 165 transitions, 411 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:33:36,615 INFO L242 Difference]: Finished difference. Result has 167 places, 157 transitions, 329 flow [2022-04-18 16:33:36,616 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=329, PETRI_PLACES=167, PETRI_TRANSITIONS=157} [2022-04-18 16:33:36,616 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -35 predicate places. [2022-04-18 16:33:36,616 INFO L478 AbstractCegarLoop]: Abstraction has has 167 places, 157 transitions, 329 flow [2022-04-18 16:33:36,617 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.16666666666666) internal successors, (991), 6 states have internal predecessors, (991), 0 states have call successors, (0), 0 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 16:33:36,617 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:36,617 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] [2022-04-18 16:33:36,617 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:33:36,617 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-04-18 16:33:36,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:36,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1413749984, now seen corresponding path program 1 times [2022-04-18 16:33:36,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:36,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849894798] [2022-04-18 16:33:36,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:36,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:36,742 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 16:33:36,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:36,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849894798] [2022-04-18 16:33:36,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849894798] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:36,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:36,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:36,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950201253] [2022-04-18 16:33:36,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:36,743 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:36,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:36,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:36,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:36,744 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 221 [2022-04-18 16:33:36,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 157 transitions, 329 flow. Second operand has 6 states, 6 states have (on average 166.33333333333334) internal successors, (998), 6 states have internal predecessors, (998), 0 states have call successors, (0), 0 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 16:33:36,745 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:36,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 221 [2022-04-18 16:33:36,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:36,827 INFO L129 PetriNetUnfolder]: 105/372 cut-off events. [2022-04-18 16:33:36,827 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-04-18 16:33:36,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 372 events. 105/372 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 717 event pairs, 100 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 446. Up to 189 conditions per place. [2022-04-18 16:33:36,829 INFO L132 encePairwiseOnDemand]: 216/221 looper letters, 28 selfloop transitions, 4 changer transitions 0/160 dead transitions. [2022-04-18 16:33:36,829 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 160 transitions, 399 flow [2022-04-18 16:33:36,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:33:36,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:33:36,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1005 transitions. [2022-04-18 16:33:36,831 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7579185520361991 [2022-04-18 16:33:36,832 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1005 transitions. [2022-04-18 16:33:36,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1005 transitions. [2022-04-18 16:33:36,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:36,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1005 transitions. [2022-04-18 16:33:36,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 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 16:33:36,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 221.0) internal successors, (1547), 7 states have internal predecessors, (1547), 0 states have call successors, (0), 0 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 16:33:36,835 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 221.0) internal successors, (1547), 7 states have internal predecessors, (1547), 0 states have call successors, (0), 0 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 16:33:36,835 INFO L186 Difference]: Start difference. First operand has 167 places, 157 transitions, 329 flow. Second operand 6 states and 1005 transitions. [2022-04-18 16:33:36,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 160 transitions, 399 flow [2022-04-18 16:33:36,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 160 transitions, 392 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:33:36,838 INFO L242 Difference]: Finished difference. Result has 167 places, 156 transitions, 328 flow [2022-04-18 16:33:36,838 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=167, PETRI_TRANSITIONS=156} [2022-04-18 16:33:36,838 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -35 predicate places. [2022-04-18 16:33:36,838 INFO L478 AbstractCegarLoop]: Abstraction has has 167 places, 156 transitions, 328 flow [2022-04-18 16:33:36,839 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.33333333333334) internal successors, (998), 6 states have internal predecessors, (998), 0 states have call successors, (0), 0 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 16:33:36,839 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:36,839 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] [2022-04-18 16:33:36,839 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:33:36,839 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-04-18 16:33:36,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:36,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1937869359, now seen corresponding path program 1 times [2022-04-18 16:33:36,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:36,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508000860] [2022-04-18 16:33:36,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:36,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:36,882 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 16:33:36,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:36,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508000860] [2022-04-18 16:33:36,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508000860] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:36,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:36,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:36,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916192431] [2022-04-18 16:33:36,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:36,883 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:36,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:36,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:36,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:36,884 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 221 [2022-04-18 16:33:36,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 156 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 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 16:33:36,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:36,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 221 [2022-04-18 16:33:36,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:36,916 INFO L129 PetriNetUnfolder]: 15/206 cut-off events. [2022-04-18 16:33:36,916 INFO L130 PetriNetUnfolder]: For 7/14 co-relation queries the response was YES. [2022-04-18 16:33:36,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 206 events. 15/206 cut-off events. For 7/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 218 event pairs, 15 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 228. Up to 39 conditions per place. [2022-04-18 16:33:36,917 INFO L132 encePairwiseOnDemand]: 219/221 looper letters, 12 selfloop transitions, 1 changer transitions 0/155 dead transitions. [2022-04-18 16:33:36,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 155 transitions, 352 flow [2022-04-18 16:33:36,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:36,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:36,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 554 transitions. [2022-04-18 16:33:36,918 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8355957767722474 [2022-04-18 16:33:36,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 554 transitions. [2022-04-18 16:33:36,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 554 transitions. [2022-04-18 16:33:36,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:36,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 554 transitions. [2022-04-18 16:33:36,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 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 16:33:36,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:36,921 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:36,921 INFO L186 Difference]: Start difference. First operand has 167 places, 156 transitions, 328 flow. Second operand 3 states and 554 transitions. [2022-04-18 16:33:36,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 155 transitions, 352 flow [2022-04-18 16:33:36,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 155 transitions, 345 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:33:36,923 INFO L242 Difference]: Finished difference. Result has 164 places, 155 transitions, 321 flow [2022-04-18 16:33:36,923 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=321, PETRI_PLACES=164, PETRI_TRANSITIONS=155} [2022-04-18 16:33:36,924 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -38 predicate places. [2022-04-18 16:33:36,924 INFO L478 AbstractCegarLoop]: Abstraction has has 164 places, 155 transitions, 321 flow [2022-04-18 16:33:36,924 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 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 16:33:36,924 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:36,925 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] [2022-04-18 16:33:36,925 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:33:36,925 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-04-18 16:33:36,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:36,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1391112532, now seen corresponding path program 1 times [2022-04-18 16:33:36,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:36,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023214790] [2022-04-18 16:33:36,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:36,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:36,984 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 16:33:36,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:36,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023214790] [2022-04-18 16:33:36,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023214790] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:36,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:36,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:36,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679665264] [2022-04-18 16:33:36,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:36,986 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:36,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:36,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:36,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:36,987 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 221 [2022-04-18 16:33:36,987 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 155 transitions, 321 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:36,987 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:36,987 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 221 [2022-04-18 16:33:36,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:37,022 INFO L129 PetriNetUnfolder]: 15/204 cut-off events. [2022-04-18 16:33:37,022 INFO L130 PetriNetUnfolder]: For 7/14 co-relation queries the response was YES. [2022-04-18 16:33:37,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 204 events. 15/204 cut-off events. For 7/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 214 event pairs, 15 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 237. Up to 39 conditions per place. [2022-04-18 16:33:37,023 INFO L132 encePairwiseOnDemand]: 218/221 looper letters, 14 selfloop transitions, 1 changer transitions 0/153 dead transitions. [2022-04-18 16:33:37,023 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 153 transitions, 347 flow [2022-04-18 16:33:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:37,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:37,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2022-04-18 16:33:37,025 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8265460030165912 [2022-04-18 16:33:37,025 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 548 transitions. [2022-04-18 16:33:37,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 548 transitions. [2022-04-18 16:33:37,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:37,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 548 transitions. [2022-04-18 16:33:37,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 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 16:33:37,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:37,027 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:37,027 INFO L186 Difference]: Start difference. First operand has 164 places, 155 transitions, 321 flow. Second operand 3 states and 548 transitions. [2022-04-18 16:33:37,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 153 transitions, 347 flow [2022-04-18 16:33:37,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 153 transitions, 346 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:33:37,029 INFO L242 Difference]: Finished difference. Result has 163 places, 153 transitions, 318 flow [2022-04-18 16:33:37,030 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=163, PETRI_TRANSITIONS=153} [2022-04-18 16:33:37,030 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -39 predicate places. [2022-04-18 16:33:37,030 INFO L478 AbstractCegarLoop]: Abstraction has has 163 places, 153 transitions, 318 flow [2022-04-18 16:33:37,030 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:37,030 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:37,031 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] [2022-04-18 16:33:37,031 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:33:37,031 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2022-04-18 16:33:37,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:37,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1124284681, now seen corresponding path program 1 times [2022-04-18 16:33:37,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:37,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906557522] [2022-04-18 16:33:37,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:37,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:37,072 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 16:33:37,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:37,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906557522] [2022-04-18 16:33:37,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906557522] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:37,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:37,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:37,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286279729] [2022-04-18 16:33:37,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:37,073 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:37,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:37,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:37,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:37,074 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 221 [2022-04-18 16:33:37,075 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 153 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:37,075 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:37,075 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 221 [2022-04-18 16:33:37,075 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:37,100 INFO L129 PetriNetUnfolder]: 15/202 cut-off events. [2022-04-18 16:33:37,100 INFO L130 PetriNetUnfolder]: For 7/14 co-relation queries the response was YES. [2022-04-18 16:33:37,101 INFO L84 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 202 events. 15/202 cut-off events. For 7/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 212 event pairs, 15 based on Foata normal form. 1/195 useless extension candidates. Maximal degree in co-relation 242. Up to 39 conditions per place. [2022-04-18 16:33:37,101 INFO L132 encePairwiseOnDemand]: 218/221 looper letters, 0 selfloop transitions, 0 changer transitions 151/151 dead transitions. [2022-04-18 16:33:37,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 151 transitions, 342 flow [2022-04-18 16:33:37,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:37,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:37,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 547 transitions. [2022-04-18 16:33:37,102 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8250377073906485 [2022-04-18 16:33:37,102 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 547 transitions. [2022-04-18 16:33:37,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 547 transitions. [2022-04-18 16:33:37,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:37,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 547 transitions. [2022-04-18 16:33:37,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 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 16:33:37,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:37,105 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 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 16:33:37,105 INFO L186 Difference]: Start difference. First operand has 163 places, 153 transitions, 318 flow. Second operand 3 states and 547 transitions. [2022-04-18 16:33:37,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 151 transitions, 342 flow [2022-04-18 16:33:37,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 151 transitions, 341 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:33:37,106 INFO L242 Difference]: Finished difference. Result has 162 places, 0 transitions, 0 flow [2022-04-18 16:33:37,107 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=162, PETRI_TRANSITIONS=0} [2022-04-18 16:33:37,107 INFO L335 CegarLoopForPetriNet]: 202 programPoint places, -40 predicate places. [2022-04-18 16:33:37,107 INFO L478 AbstractCegarLoop]: Abstraction has has 162 places, 0 transitions, 0 flow [2022-04-18 16:33:37,107 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 16:33:37,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (67 of 68 remaining) [2022-04-18 16:33:37,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (66 of 68 remaining) [2022-04-18 16:33:37,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (65 of 68 remaining) [2022-04-18 16:33:37,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (64 of 68 remaining) [2022-04-18 16:33:37,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (63 of 68 remaining) [2022-04-18 16:33:37,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (62 of 68 remaining) [2022-04-18 16:33:37,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (61 of 68 remaining) [2022-04-18 16:33:37,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (60 of 68 remaining) [2022-04-18 16:33:37,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (59 of 68 remaining) [2022-04-18 16:33:37,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (58 of 68 remaining) [2022-04-18 16:33:37,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (57 of 68 remaining) [2022-04-18 16:33:37,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (56 of 68 remaining) [2022-04-18 16:33:37,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (55 of 68 remaining) [2022-04-18 16:33:37,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (54 of 68 remaining) [2022-04-18 16:33:37,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (53 of 68 remaining) [2022-04-18 16:33:37,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (52 of 68 remaining) [2022-04-18 16:33:37,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (51 of 68 remaining) [2022-04-18 16:33:37,111 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (50 of 68 remaining) [2022-04-18 16:33:37,111 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (49 of 68 remaining) [2022-04-18 16:33:37,111 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (48 of 68 remaining) [2022-04-18 16:33:37,111 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (47 of 68 remaining) [2022-04-18 16:33:37,111 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (46 of 68 remaining) [2022-04-18 16:33:37,111 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (45 of 68 remaining) [2022-04-18 16:33:37,111 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (44 of 68 remaining) [2022-04-18 16:33:37,111 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (43 of 68 remaining) [2022-04-18 16:33:37,111 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (42 of 68 remaining) [2022-04-18 16:33:37,111 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (41 of 68 remaining) [2022-04-18 16:33:37,111 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (40 of 68 remaining) [2022-04-18 16:33:37,111 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 68 remaining) [2022-04-18 16:33:37,111 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 68 remaining) [2022-04-18 16:33:37,111 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 68 remaining) [2022-04-18 16:33:37,112 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 68 remaining) [2022-04-18 16:33:37,112 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (35 of 68 remaining) [2022-04-18 16:33:37,112 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (34 of 68 remaining) [2022-04-18 16:33:37,112 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (33 of 68 remaining) [2022-04-18 16:33:37,112 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (32 of 68 remaining) [2022-04-18 16:33:37,112 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (31 of 68 remaining) [2022-04-18 16:33:37,112 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (30 of 68 remaining) [2022-04-18 16:33:37,112 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (29 of 68 remaining) [2022-04-18 16:33:37,112 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (28 of 68 remaining) [2022-04-18 16:33:37,112 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (27 of 68 remaining) [2022-04-18 16:33:37,112 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 68 remaining) [2022-04-18 16:33:37,112 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 68 remaining) [2022-04-18 16:33:37,112 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 68 remaining) [2022-04-18 16:33:37,112 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 68 remaining) [2022-04-18 16:33:37,113 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 68 remaining) [2022-04-18 16:33:37,113 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 68 remaining) [2022-04-18 16:33:37,113 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 68 remaining) [2022-04-18 16:33:37,113 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (19 of 68 remaining) [2022-04-18 16:33:37,113 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (18 of 68 remaining) [2022-04-18 16:33:37,113 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (17 of 68 remaining) [2022-04-18 16:33:37,113 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (16 of 68 remaining) [2022-04-18 16:33:37,113 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (15 of 68 remaining) [2022-04-18 16:33:37,113 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (14 of 68 remaining) [2022-04-18 16:33:37,113 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (13 of 68 remaining) [2022-04-18 16:33:37,113 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (12 of 68 remaining) [2022-04-18 16:33:37,113 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (11 of 68 remaining) [2022-04-18 16:33:37,113 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (10 of 68 remaining) [2022-04-18 16:33:37,113 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (9 of 68 remaining) [2022-04-18 16:33:37,113 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (8 of 68 remaining) [2022-04-18 16:33:37,114 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (7 of 68 remaining) [2022-04-18 16:33:37,114 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (6 of 68 remaining) [2022-04-18 16:33:37,114 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (5 of 68 remaining) [2022-04-18 16:33:37,114 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (4 of 68 remaining) [2022-04-18 16:33:37,114 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (3 of 68 remaining) [2022-04-18 16:33:37,114 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (2 of 68 remaining) [2022-04-18 16:33:37,114 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (1 of 68 remaining) [2022-04-18 16:33:37,114 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (0 of 68 remaining) [2022-04-18 16:33:37,114 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:33:37,117 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:37,120 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:33:37,120 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:33:37,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:33:37 BasicIcfg [2022-04-18 16:33:37,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:33:37,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:33:37,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:33:37,123 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:33:37,123 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:34" (3/4) ... [2022-04-18 16:33:37,124 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:33:37,128 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:33:37,128 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:33:37,128 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-04-18 16:33:37,131 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-04-18 16:33:37,131 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:33:37,132 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:33:37,132 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:33:37,155 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:33:37,156 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:33:37,156 INFO L158 Benchmark]: Toolchain (without parser) took 3433.16ms. Allocated memory was 107.0MB in the beginning and 207.6MB in the end (delta: 100.7MB). Free memory was 74.5MB in the beginning and 114.0MB in the end (delta: -39.5MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2022-04-18 16:33:37,156 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 107.0MB. Free memory was 60.4MB in the beginning and 60.3MB in the end (delta: 46.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:33:37,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.79ms. Allocated memory is still 107.0MB. Free memory was 74.3MB in the beginning and 79.1MB in the end (delta: -4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 16:33:37,156 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.08ms. Allocated memory is still 107.0MB. Free memory was 79.1MB in the beginning and 76.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:33:37,157 INFO L158 Benchmark]: Boogie Preprocessor took 33.02ms. Allocated memory is still 107.0MB. Free memory was 76.4MB in the beginning and 74.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:33:37,157 INFO L158 Benchmark]: RCFGBuilder took 732.21ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 74.3MB in the beginning and 99.6MB in the end (delta: -25.3MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2022-04-18 16:33:37,157 INFO L158 Benchmark]: TraceAbstraction took 2358.95ms. Allocated memory was 130.0MB in the beginning and 207.6MB in the end (delta: 77.6MB). Free memory was 99.6MB in the beginning and 117.1MB in the end (delta: -17.5MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. [2022-04-18 16:33:37,157 INFO L158 Benchmark]: Witness Printer took 33.06ms. Allocated memory is still 207.6MB. Free memory was 117.1MB in the beginning and 114.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:33:37,158 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 107.0MB. Free memory was 60.4MB in the beginning and 60.3MB in the end (delta: 46.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.79ms. Allocated memory is still 107.0MB. Free memory was 74.3MB in the beginning and 79.1MB in the end (delta: -4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.08ms. Allocated memory is still 107.0MB. Free memory was 79.1MB in the beginning and 76.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.02ms. Allocated memory is still 107.0MB. Free memory was 76.4MB in the beginning and 74.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 732.21ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 74.3MB in the beginning and 99.6MB in the end (delta: -25.3MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2358.95ms. Allocated memory was 130.0MB in the beginning and 207.6MB in the end (delta: 77.6MB). Free memory was 99.6MB in the beginning and 117.1MB in the end (delta: -17.5MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. * Witness Printer took 33.06ms. Allocated memory is still 207.6MB. Free memory was 117.1MB in the beginning and 114.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 258 locations, 68 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 156 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 485 IncrementalHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 91 mSDtfsCounter, 485 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=402occurred in iteration=0, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1309 NumberOfCodeBlocks, 1309 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1294 ConstructedInterpolants, 0 QuantifiedInterpolants, 1561 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 41 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:33:37,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE