./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-determinism.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/popl20-counter-determinism.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 65bf47faf943da19c0d2d15e35f35ceed9dd68ed50ac4355a0589bd57bf3d155 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:35:16,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:35:16,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:35:16,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:35:16,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:35:16,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:35:16,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:35:16,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:35:16,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:35:16,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:35:16,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:35:16,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:35:16,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:35:16,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:35:16,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:35:16,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:35:16,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:35:16,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:35:16,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:35:16,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:35:16,142 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:35:16,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:35:16,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:35:16,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:35:16,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:35:16,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:35:16,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:35:16,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:35:16,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:35:16,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:35:16,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:35:16,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:35:16,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:35:16,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:35:16,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:35:16,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:35:16,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:35:16,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:35:16,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:35:16,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:35:16,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:35:16,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:35:16,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:35:16,187 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:35:16,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:35:16,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:35:16,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:35:16,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:35:16,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:35:16,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:35:16,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:35:16,189 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:35:16,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:35:16,190 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:35:16,190 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:35:16,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:35:16,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:35:16,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:35:16,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:35:16,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:35:16,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:35:16,192 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:35:16,192 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:35:16,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:35:16,193 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:35:16,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:35:16,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:35:16,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:35:16,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:35:16,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:35:16,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:35:16,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:35:16,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:35:16,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:35:16,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:35:16,194 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:35:16,195 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:35:16,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:35:16,195 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65bf47faf943da19c0d2d15e35f35ceed9dd68ed50ac4355a0589bd57bf3d155 [2022-04-18 16:35:16,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:35:16,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:35:16,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:35:16,419 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:35:16,420 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:35:16,421 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-determinism.wvr.c [2022-04-18 16:35:16,464 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/414d02b6a/9a39d77759a24d7bba6f5ed7ed94499a/FLAGc7af1a3f2 [2022-04-18 16:35:16,836 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:35:16,836 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-determinism.wvr.c [2022-04-18 16:35:16,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/414d02b6a/9a39d77759a24d7bba6f5ed7ed94499a/FLAGc7af1a3f2 [2022-04-18 16:35:16,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/414d02b6a/9a39d77759a24d7bba6f5ed7ed94499a [2022-04-18 16:35:16,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:35:16,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:35:16,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:35:16,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:35:16,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:35:16,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:35:16" (1/1) ... [2022-04-18 16:35:16,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32fe5a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:16, skipping insertion in model container [2022-04-18 16:35:16,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:35:16" (1/1) ... [2022-04-18 16:35:16,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:35:16,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:35:17,035 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/popl20-counter-determinism.wvr.c[2476,2489] [2022-04-18 16:35:17,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:35:17,045 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:35:17,082 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/popl20-counter-determinism.wvr.c[2476,2489] [2022-04-18 16:35:17,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:35:17,100 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:35:17,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:17 WrapperNode [2022-04-18 16:35:17,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:35:17,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:35:17,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:35:17,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:35:17,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:17" (1/1) ... [2022-04-18 16:35:17,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:17" (1/1) ... [2022-04-18 16:35:17,139 INFO L137 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 164 [2022-04-18 16:35:17,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:35:17,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:35:17,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:35:17,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:35:17,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:17" (1/1) ... [2022-04-18 16:35:17,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:17" (1/1) ... [2022-04-18 16:35:17,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:17" (1/1) ... [2022-04-18 16:35:17,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:17" (1/1) ... [2022-04-18 16:35:17,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:17" (1/1) ... [2022-04-18 16:35:17,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:17" (1/1) ... [2022-04-18 16:35:17,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:17" (1/1) ... [2022-04-18 16:35:17,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:35:17,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:35:17,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:35:17,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:35:17,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:17" (1/1) ... [2022-04-18 16:35:17,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:35:17,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:35:17,196 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 16:35:17,215 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 16:35:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:35:17,235 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:35:17,235 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:35:17,235 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:35:17,235 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:35:17,235 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:35:17,236 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:35:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-04-18 16:35:17,236 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-04-18 16:35:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:35:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:35:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:35:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:35:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:35:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:35:17,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:35:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:35:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:35:17,238 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 16:35:17,295 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:35:17,296 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:35:17,582 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:35:17,631 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:35:17,660 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-04-18 16:35:17,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:35:17 BoogieIcfgContainer [2022-04-18 16:35:17,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:35:17,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:35:17,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:35:17,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:35:17,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:35:16" (1/3) ... [2022-04-18 16:35:17,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109d277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:35:17, skipping insertion in model container [2022-04-18 16:35:17,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:17" (2/3) ... [2022-04-18 16:35:17,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109d277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:35:17, skipping insertion in model container [2022-04-18 16:35:17,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:35:17" (3/3) ... [2022-04-18 16:35:17,675 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-counter-determinism.wvr.c [2022-04-18 16:35:17,680 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:35:17,680 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:35:17,680 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2022-04-18 16:35:17,680 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:35:17,765 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-04-18 16:35:17,796 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:35:17,803 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 16:35:17,803 INFO L341 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-04-18 16:35:17,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 184 places, 180 transitions, 392 flow [2022-04-18 16:35:17,890 INFO L129 PetriNetUnfolder]: 9/176 cut-off events. [2022-04-18 16:35:17,890 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-04-18 16:35:17,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 176 events. 9/176 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 199 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2022-04-18 16:35:17,895 INFO L82 GeneralOperation]: Start removeDead. Operand has 184 places, 180 transitions, 392 flow [2022-04-18 16:35:17,905 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 154 transitions, 332 flow [2022-04-18 16:35:17,910 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2022-04-18 16:35:17,910 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:35:17,910 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:17,911 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] [2022-04-18 16:35:17,911 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-04-18 16:35:17,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:17,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1355877263, now seen corresponding path program 1 times [2022-04-18 16:35:17,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:17,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981141597] [2022-04-18 16:35:17,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:17,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:18,084 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 16:35:18,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:18,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981141597] [2022-04-18 16:35:18,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981141597] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:18,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:18,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:18,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108913157] [2022-04-18 16:35:18,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:18,094 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:18,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:18,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:18,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:18,123 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 180 [2022-04-18 16:35:18,129 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 154 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 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 16:35:18,129 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:18,129 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 180 [2022-04-18 16:35:18,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:18,735 INFO L129 PetriNetUnfolder]: 2736/5718 cut-off events. [2022-04-18 16:35:18,735 INFO L130 PetriNetUnfolder]: For 869/1298 co-relation queries the response was YES. [2022-04-18 16:35:18,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9865 conditions, 5718 events. 2736/5718 cut-off events. For 869/1298 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 46527 event pairs, 2064 based on Foata normal form. 0/4566 useless extension candidates. Maximal degree in co-relation 9484. Up to 3672 conditions per place. [2022-04-18 16:35:18,806 INFO L132 encePairwiseOnDemand]: 163/180 looper letters, 27 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2022-04-18 16:35:18,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 139 transitions, 360 flow [2022-04-18 16:35:18,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:18,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:18,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2022-04-18 16:35:18,824 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.825925925925926 [2022-04-18 16:35:18,825 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2022-04-18 16:35:18,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2022-04-18 16:35:18,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:18,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2022-04-18 16:35:18,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 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 16:35:18,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 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 16:35:18,841 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 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 16:35:18,842 INFO L186 Difference]: Start difference. First operand has 159 places, 154 transitions, 332 flow. Second operand 3 states and 446 transitions. [2022-04-18 16:35:18,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 139 transitions, 360 flow [2022-04-18 16:35:18,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 139 transitions, 344 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-04-18 16:35:18,854 INFO L242 Difference]: Finished difference. Result has 142 places, 139 transitions, 290 flow [2022-04-18 16:35:18,855 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=142, PETRI_TRANSITIONS=139} [2022-04-18 16:35:18,858 INFO L335 CegarLoopForPetriNet]: 159 programPoint places, -17 predicate places. [2022-04-18 16:35:18,858 INFO L478 AbstractCegarLoop]: Abstraction has has 142 places, 139 transitions, 290 flow [2022-04-18 16:35:18,859 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 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 16:35:18,859 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:18,860 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] [2022-04-18 16:35:18,860 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:35:18,860 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-04-18 16:35:18,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:18,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1422098542, now seen corresponding path program 1 times [2022-04-18 16:35:18,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:18,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313038628] [2022-04-18 16:35:18,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:18,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:18,914 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 16:35:18,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:18,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313038628] [2022-04-18 16:35:18,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313038628] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:18,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:18,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:18,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499134223] [2022-04-18 16:35:18,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:18,917 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:18,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:18,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:18,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:18,920 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 180 [2022-04-18 16:35:18,921 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 139 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 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 16:35:18,921 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:18,921 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 180 [2022-04-18 16:35:18,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:19,160 INFO L129 PetriNetUnfolder]: 1225/3007 cut-off events. [2022-04-18 16:35:19,161 INFO L130 PetriNetUnfolder]: For 86/284 co-relation queries the response was YES. [2022-04-18 16:35:19,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4743 conditions, 3007 events. 1225/3007 cut-off events. For 86/284 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 22724 event pairs, 747 based on Foata normal form. 0/2691 useless extension candidates. Maximal degree in co-relation 4710. Up to 1640 conditions per place. [2022-04-18 16:35:19,183 INFO L132 encePairwiseOnDemand]: 172/180 looper letters, 25 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2022-04-18 16:35:19,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 142 transitions, 357 flow [2022-04-18 16:35:19,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:19,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:19,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2022-04-18 16:35:19,185 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2022-04-18 16:35:19,185 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 444 transitions. [2022-04-18 16:35:19,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 444 transitions. [2022-04-18 16:35:19,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:19,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 444 transitions. [2022-04-18 16:35:19,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 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 16:35:19,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 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 16:35:19,189 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 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 16:35:19,189 INFO L186 Difference]: Start difference. First operand has 142 places, 139 transitions, 290 flow. Second operand 3 states and 444 transitions. [2022-04-18 16:35:19,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 142 transitions, 357 flow [2022-04-18 16:35:19,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 142 transitions, 353 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:19,195 INFO L242 Difference]: Finished difference. Result has 139 places, 139 transitions, 306 flow [2022-04-18 16:35:19,195 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=139, PETRI_TRANSITIONS=139} [2022-04-18 16:35:19,196 INFO L335 CegarLoopForPetriNet]: 159 programPoint places, -20 predicate places. [2022-04-18 16:35:19,196 INFO L478 AbstractCegarLoop]: Abstraction has has 139 places, 139 transitions, 306 flow [2022-04-18 16:35:19,197 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 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 16:35:19,197 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:19,197 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] [2022-04-18 16:35:19,197 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:35:19,197 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-04-18 16:35:19,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:19,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1257417651, now seen corresponding path program 1 times [2022-04-18 16:35:19,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:19,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967384880] [2022-04-18 16:35:19,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:19,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:19,365 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 16:35:19,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:19,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967384880] [2022-04-18 16:35:19,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967384880] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:19,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:19,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:35:19,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665212275] [2022-04-18 16:35:19,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:19,369 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:35:19,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:19,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:35:19,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:35:19,371 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 180 [2022-04-18 16:35:19,371 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 139 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 0 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 16:35:19,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:19,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 180 [2022-04-18 16:35:19,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:19,495 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([553] L62-6-->L62-1: Formula: (= |v_#race~N~0_7| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_7|} AuxVars[] AssignedVars[#race~N~0][67], [Black: 191#true, 37#L51-1true, 193#(= |#race~N~0| 0), 77#L62-1true, 11#L41-1true, 196#true, 144#L90-4true]) [2022-04-18 16:35:19,495 INFO L384 tUnfolder$Statistics]: this new event has 62 ancestors and is cut-off event [2022-04-18 16:35:19,495 INFO L387 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2022-04-18 16:35:19,496 INFO L387 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2022-04-18 16:35:19,496 INFO L387 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2022-04-18 16:35:19,548 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([568] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][87], [Black: 191#true, 15#L91-4true, 37#L51-1true, 193#(= |#race~N~0| 0), 11#L41-1true, 62#thread3ENTRYtrue, 196#true, 178#L72-1true]) [2022-04-18 16:35:19,548 INFO L384 tUnfolder$Statistics]: this new event has 68 ancestors and is cut-off event [2022-04-18 16:35:19,548 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 16:35:19,548 INFO L387 tUnfolder$Statistics]: existing Event has 54 ancestors and is cut-off event [2022-04-18 16:35:19,548 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 16:35:19,549 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([568] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][87], [Black: 191#true, 15#L91-4true, 193#(= |#race~N~0| 0), 77#L62-1true, 11#L41-1true, 176#thread2ENTRYtrue, 196#true, 178#L72-1true]) [2022-04-18 16:35:19,550 INFO L384 tUnfolder$Statistics]: this new event has 68 ancestors and is cut-off event [2022-04-18 16:35:19,550 INFO L387 tUnfolder$Statistics]: existing Event has 54 ancestors and is cut-off event [2022-04-18 16:35:19,550 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 16:35:19,550 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 16:35:19,591 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([568] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][87], [Black: 191#true, 15#L91-4true, 37#L51-1true, 193#(= |#race~N~0| 0), 77#L62-1true, 11#L41-1true, 196#true, 178#L72-1true]) [2022-04-18 16:35:19,592 INFO L384 tUnfolder$Statistics]: this new event has 70 ancestors and is cut-off event [2022-04-18 16:35:19,592 INFO L387 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-04-18 16:35:19,592 INFO L387 tUnfolder$Statistics]: existing Event has 56 ancestors and is cut-off event [2022-04-18 16:35:19,592 INFO L387 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-04-18 16:35:19,707 INFO L129 PetriNetUnfolder]: 1340/2749 cut-off events. [2022-04-18 16:35:19,708 INFO L130 PetriNetUnfolder]: For 3/20 co-relation queries the response was YES. [2022-04-18 16:35:19,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4803 conditions, 2749 events. 1340/2749 cut-off events. For 3/20 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 19756 event pairs, 194 based on Foata normal form. 12/2422 useless extension candidates. Maximal degree in co-relation 3694. Up to 847 conditions per place. [2022-04-18 16:35:19,733 INFO L132 encePairwiseOnDemand]: 175/180 looper letters, 51 selfloop transitions, 4 changer transitions 0/154 dead transitions. [2022-04-18 16:35:19,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 154 transitions, 446 flow [2022-04-18 16:35:19,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:35:19,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:35:19,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 788 transitions. [2022-04-18 16:35:19,735 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7296296296296296 [2022-04-18 16:35:19,735 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 788 transitions. [2022-04-18 16:35:19,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 788 transitions. [2022-04-18 16:35:19,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:19,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 788 transitions. [2022-04-18 16:35:19,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 0 states have call successors, (0), 0 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 16:35:19,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 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 16:35:19,739 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 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 16:35:19,740 INFO L186 Difference]: Start difference. First operand has 139 places, 139 transitions, 306 flow. Second operand 6 states and 788 transitions. [2022-04-18 16:35:19,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 154 transitions, 446 flow [2022-04-18 16:35:19,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 154 transitions, 446 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:35:19,742 INFO L242 Difference]: Finished difference. Result has 143 places, 138 transitions, 312 flow [2022-04-18 16:35:19,742 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2022-04-18 16:35:19,743 INFO L335 CegarLoopForPetriNet]: 159 programPoint places, -16 predicate places. [2022-04-18 16:35:19,743 INFO L478 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 312 flow [2022-04-18 16:35:19,744 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 0 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 16:35:19,744 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:19,744 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] [2022-04-18 16:35:19,744 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:35:19,744 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-04-18 16:35:19,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:19,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1993919848, now seen corresponding path program 1 times [2022-04-18 16:35:19,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:19,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359747075] [2022-04-18 16:35:19,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:19,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:19,863 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 16:35:19,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:19,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359747075] [2022-04-18 16:35:19,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359747075] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:19,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:19,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:35:19,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375853273] [2022-04-18 16:35:19,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:19,870 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:35:19,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:19,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:35:19,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:35:19,877 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 180 [2022-04-18 16:35:19,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 0 states have call successors, (0), 0 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 16:35:19,880 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:19,880 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 180 [2022-04-18 16:35:19,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:20,134 INFO L129 PetriNetUnfolder]: 1179/2480 cut-off events. [2022-04-18 16:35:20,135 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2022-04-18 16:35:20,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4517 conditions, 2480 events. 1179/2480 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 17631 event pairs, 604 based on Foata normal form. 0/2118 useless extension candidates. Maximal degree in co-relation 3443. Up to 1160 conditions per place. [2022-04-18 16:35:20,160 INFO L132 encePairwiseOnDemand]: 175/180 looper letters, 46 selfloop transitions, 4 changer transitions 0/149 dead transitions. [2022-04-18 16:35:20,161 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 149 transitions, 434 flow [2022-04-18 16:35:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:35:20,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:35:20,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 783 transitions. [2022-04-18 16:35:20,163 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.725 [2022-04-18 16:35:20,163 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 783 transitions. [2022-04-18 16:35:20,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 783 transitions. [2022-04-18 16:35:20,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:20,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 783 transitions. [2022-04-18 16:35:20,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.5) internal successors, (783), 6 states have internal predecessors, (783), 0 states have call successors, (0), 0 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 16:35:20,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 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 16:35:20,167 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 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 16:35:20,167 INFO L186 Difference]: Start difference. First operand has 143 places, 138 transitions, 312 flow. Second operand 6 states and 783 transitions. [2022-04-18 16:35:20,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 149 transitions, 434 flow [2022-04-18 16:35:20,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 149 transitions, 427 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:35:20,171 INFO L242 Difference]: Finished difference. Result has 143 places, 137 transitions, 311 flow [2022-04-18 16:35:20,172 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=311, PETRI_PLACES=143, PETRI_TRANSITIONS=137} [2022-04-18 16:35:20,173 INFO L335 CegarLoopForPetriNet]: 159 programPoint places, -16 predicate places. [2022-04-18 16:35:20,173 INFO L478 AbstractCegarLoop]: Abstraction has has 143 places, 137 transitions, 311 flow [2022-04-18 16:35:20,174 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 0 states have call successors, (0), 0 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 16:35:20,174 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:20,174 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] [2022-04-18 16:35:20,174 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:35:20,174 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-04-18 16:35:20,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:20,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1567666408, now seen corresponding path program 1 times [2022-04-18 16:35:20,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:20,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282559054] [2022-04-18 16:35:20,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:20,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:20,297 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 16:35:20,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:20,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282559054] [2022-04-18 16:35:20,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282559054] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:20,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:20,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:35:20,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70831746] [2022-04-18 16:35:20,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:20,300 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:35:20,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:20,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:35:20,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:35:20,302 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 180 [2022-04-18 16:35:20,303 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 137 transitions, 311 flow. Second operand has 6 states, 6 states have (on average 126.16666666666667) internal successors, (757), 6 states have internal predecessors, (757), 0 states have call successors, (0), 0 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 16:35:20,303 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:20,303 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 180 [2022-04-18 16:35:20,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:20,518 INFO L129 PetriNetUnfolder]: 1029/2199 cut-off events. [2022-04-18 16:35:20,518 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-04-18 16:35:20,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3914 conditions, 2199 events. 1029/2199 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 15309 event pairs, 683 based on Foata normal form. 0/1877 useless extension candidates. Maximal degree in co-relation 3094. Up to 1272 conditions per place. [2022-04-18 16:35:20,539 INFO L132 encePairwiseOnDemand]: 175/180 looper letters, 41 selfloop transitions, 4 changer transitions 0/144 dead transitions. [2022-04-18 16:35:20,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 144 transitions, 415 flow [2022-04-18 16:35:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:35:20,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:35:20,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 778 transitions. [2022-04-18 16:35:20,542 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7203703703703703 [2022-04-18 16:35:20,542 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 778 transitions. [2022-04-18 16:35:20,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 778 transitions. [2022-04-18 16:35:20,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:20,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 778 transitions. [2022-04-18 16:35:20,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 0 states have call successors, (0), 0 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 16:35:20,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 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 16:35:20,546 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 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 16:35:20,546 INFO L186 Difference]: Start difference. First operand has 143 places, 137 transitions, 311 flow. Second operand 6 states and 778 transitions. [2022-04-18 16:35:20,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 144 transitions, 415 flow [2022-04-18 16:35:20,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 144 transitions, 408 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:35:20,548 INFO L242 Difference]: Finished difference. Result has 143 places, 136 transitions, 310 flow [2022-04-18 16:35:20,549 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=310, PETRI_PLACES=143, PETRI_TRANSITIONS=136} [2022-04-18 16:35:20,549 INFO L335 CegarLoopForPetriNet]: 159 programPoint places, -16 predicate places. [2022-04-18 16:35:20,549 INFO L478 AbstractCegarLoop]: Abstraction has has 143 places, 136 transitions, 310 flow [2022-04-18 16:35:20,550 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.16666666666667) internal successors, (757), 6 states have internal predecessors, (757), 0 states have call successors, (0), 0 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 16:35:20,550 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:20,550 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] [2022-04-18 16:35:20,550 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:35:20,550 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-04-18 16:35:20,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:20,551 INFO L85 PathProgramCache]: Analyzing trace with hash -331311576, now seen corresponding path program 1 times [2022-04-18 16:35:20,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:20,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731710135] [2022-04-18 16:35:20,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:20,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:20,677 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 16:35:20,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:20,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731710135] [2022-04-18 16:35:20,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731710135] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:20,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:20,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:35:20,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293740707] [2022-04-18 16:35:20,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:20,679 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:35:20,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:20,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:35:20,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:35:20,680 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 180 [2022-04-18 16:35:20,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 136 transitions, 310 flow. Second operand has 6 states, 6 states have (on average 127.16666666666667) internal successors, (763), 6 states have internal predecessors, (763), 0 states have call successors, (0), 0 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 16:35:20,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:20,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 180 [2022-04-18 16:35:20,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:20,740 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([553] L62-6-->L62-1: Formula: (= |v_#race~N~0_7| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_7|} AuxVars[] AssignedVars[#race~N~0][67], [Black: 191#true, 37#L51-1true, 193#(= |#race~N~0| 0), 77#L62-1true, 210#true, 11#L41-1true, 144#L90-4true, 217#true]) [2022-04-18 16:35:20,741 INFO L384 tUnfolder$Statistics]: this new event has 62 ancestors and is cut-off event [2022-04-18 16:35:20,741 INFO L387 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2022-04-18 16:35:20,741 INFO L387 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2022-04-18 16:35:20,741 INFO L387 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2022-04-18 16:35:20,917 INFO L129 PetriNetUnfolder]: 1034/2197 cut-off events. [2022-04-18 16:35:20,917 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-04-18 16:35:20,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3910 conditions, 2197 events. 1034/2197 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 15311 event pairs, 721 based on Foata normal form. 0/1893 useless extension candidates. Maximal degree in co-relation 3624. Up to 1373 conditions per place. [2022-04-18 16:35:20,940 INFO L132 encePairwiseOnDemand]: 175/180 looper letters, 36 selfloop transitions, 4 changer transitions 0/139 dead transitions. [2022-04-18 16:35:20,940 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 139 transitions, 396 flow [2022-04-18 16:35:20,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:35:20,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:35:20,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 773 transitions. [2022-04-18 16:35:20,942 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7157407407407408 [2022-04-18 16:35:20,942 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 773 transitions. [2022-04-18 16:35:20,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 773 transitions. [2022-04-18 16:35:20,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:20,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 773 transitions. [2022-04-18 16:35:20,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 0 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 16:35:20,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 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 16:35:20,945 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 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 16:35:20,945 INFO L186 Difference]: Start difference. First operand has 143 places, 136 transitions, 310 flow. Second operand 6 states and 773 transitions. [2022-04-18 16:35:20,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 139 transitions, 396 flow [2022-04-18 16:35:20,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 139 transitions, 389 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:35:20,948 INFO L242 Difference]: Finished difference. Result has 143 places, 135 transitions, 309 flow [2022-04-18 16:35:20,948 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=309, PETRI_PLACES=143, PETRI_TRANSITIONS=135} [2022-04-18 16:35:20,948 INFO L335 CegarLoopForPetriNet]: 159 programPoint places, -16 predicate places. [2022-04-18 16:35:20,949 INFO L478 AbstractCegarLoop]: Abstraction has has 143 places, 135 transitions, 309 flow [2022-04-18 16:35:20,949 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.16666666666667) internal successors, (763), 6 states have internal predecessors, (763), 0 states have call successors, (0), 0 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 16:35:20,949 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:20,949 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] [2022-04-18 16:35:20,949 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:35:20,949 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-04-18 16:35:20,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:20,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1387788246, now seen corresponding path program 1 times [2022-04-18 16:35:20,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:20,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085461180] [2022-04-18 16:35:20,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:20,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:21,004 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 16:35:21,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:21,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085461180] [2022-04-18 16:35:21,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085461180] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:21,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:21,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:21,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552587882] [2022-04-18 16:35:21,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:21,006 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:21,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:21,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:21,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:21,007 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 180 [2022-04-18 16:35:21,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 135 transitions, 309 flow. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 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 16:35:21,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:21,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 180 [2022-04-18 16:35:21,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:21,040 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([553] L62-6-->L62-1: Formula: (= |v_#race~N~0_7| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_7|} AuxVars[] AssignedVars[#race~N~0][67], [Black: 191#true, 37#L51-1true, 193#(= |#race~N~0| 0), 224#true, 77#L62-1true, 11#L41-1true, 144#L90-4true, 217#true]) [2022-04-18 16:35:21,041 INFO L384 tUnfolder$Statistics]: this new event has 62 ancestors and is cut-off event [2022-04-18 16:35:21,041 INFO L387 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2022-04-18 16:35:21,041 INFO L387 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2022-04-18 16:35:21,041 INFO L387 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2022-04-18 16:35:21,059 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([568] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][87], [Black: 191#true, 15#L91-4true, 37#L51-1true, 193#(= |#race~N~0| 0), 224#true, 11#L41-1true, 62#thread3ENTRYtrue, 217#true, 178#L72-1true]) [2022-04-18 16:35:21,059 INFO L384 tUnfolder$Statistics]: this new event has 68 ancestors and is cut-off event [2022-04-18 16:35:21,059 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 16:35:21,059 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 16:35:21,060 INFO L387 tUnfolder$Statistics]: existing Event has 54 ancestors and is cut-off event [2022-04-18 16:35:21,060 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([568] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][87], [Black: 191#true, 15#L91-4true, 193#(= |#race~N~0| 0), 224#true, 77#L62-1true, 11#L41-1true, 176#thread2ENTRYtrue, 217#true, 178#L72-1true]) [2022-04-18 16:35:21,060 INFO L384 tUnfolder$Statistics]: this new event has 68 ancestors and is cut-off event [2022-04-18 16:35:21,060 INFO L387 tUnfolder$Statistics]: existing Event has 54 ancestors and is cut-off event [2022-04-18 16:35:21,060 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 16:35:21,061 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 16:35:21,065 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([568] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][87], [Black: 191#true, 15#L91-4true, 37#L51-1true, 193#(= |#race~N~0| 0), 224#true, 77#L62-1true, 11#L41-1true, 217#true, 178#L72-1true]) [2022-04-18 16:35:21,066 INFO L384 tUnfolder$Statistics]: this new event has 70 ancestors and is cut-off event [2022-04-18 16:35:21,066 INFO L387 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-04-18 16:35:21,066 INFO L387 tUnfolder$Statistics]: existing Event has 56 ancestors and is cut-off event [2022-04-18 16:35:21,066 INFO L387 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-04-18 16:35:21,100 INFO L129 PetriNetUnfolder]: 315/1135 cut-off events. [2022-04-18 16:35:21,100 INFO L130 PetriNetUnfolder]: For 37/59 co-relation queries the response was YES. [2022-04-18 16:35:21,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1651 conditions, 1135 events. 315/1135 cut-off events. For 37/59 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 7258 event pairs, 113 based on Foata normal form. 0/982 useless extension candidates. Maximal degree in co-relation 1620. Up to 246 conditions per place. [2022-04-18 16:35:21,111 INFO L132 encePairwiseOnDemand]: 178/180 looper letters, 13 selfloop transitions, 1 changer transitions 0/134 dead transitions. [2022-04-18 16:35:21,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 134 transitions, 335 flow [2022-04-18 16:35:21,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:21,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:21,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 462 transitions. [2022-04-18 16:35:21,113 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8555555555555555 [2022-04-18 16:35:21,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 462 transitions. [2022-04-18 16:35:21,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 462 transitions. [2022-04-18 16:35:21,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:21,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 462 transitions. [2022-04-18 16:35:21,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 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 16:35:21,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 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 16:35:21,115 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 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 16:35:21,115 INFO L186 Difference]: Start difference. First operand has 143 places, 135 transitions, 309 flow. Second operand 3 states and 462 transitions. [2022-04-18 16:35:21,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 134 transitions, 335 flow [2022-04-18 16:35:21,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 134 transitions, 328 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:35:21,117 INFO L242 Difference]: Finished difference. Result has 140 places, 134 transitions, 302 flow [2022-04-18 16:35:21,118 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=302, PETRI_PLACES=140, PETRI_TRANSITIONS=134} [2022-04-18 16:35:21,118 INFO L335 CegarLoopForPetriNet]: 159 programPoint places, -19 predicate places. [2022-04-18 16:35:21,118 INFO L478 AbstractCegarLoop]: Abstraction has has 140 places, 134 transitions, 302 flow [2022-04-18 16:35:21,119 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 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 16:35:21,119 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:21,119 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] [2022-04-18 16:35:21,119 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:35:21,119 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-04-18 16:35:21,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:21,120 INFO L85 PathProgramCache]: Analyzing trace with hash 2139331152, now seen corresponding path program 1 times [2022-04-18 16:35:21,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:21,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925030629] [2022-04-18 16:35:21,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:21,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:21,156 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 16:35:21,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:21,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925030629] [2022-04-18 16:35:21,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925030629] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:21,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:21,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:21,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936534179] [2022-04-18 16:35:21,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:21,157 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:21,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:21,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:21,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:21,158 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 180 [2022-04-18 16:35:21,159 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 134 transitions, 302 flow. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 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 16:35:21,159 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:21,159 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 180 [2022-04-18 16:35:21,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:21,189 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([553] L62-6-->L62-1: Formula: (= |v_#race~N~0_7| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_7|} AuxVars[] AssignedVars[#race~N~0][67], [Black: 191#true, 37#L51-1true, 193#(= |#race~N~0| 0), 224#true, 77#L62-1true, 11#L41-1true, 228#true, 144#L90-4true]) [2022-04-18 16:35:21,190 INFO L384 tUnfolder$Statistics]: this new event has 62 ancestors and is cut-off event [2022-04-18 16:35:21,190 INFO L387 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2022-04-18 16:35:21,190 INFO L387 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2022-04-18 16:35:21,190 INFO L387 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2022-04-18 16:35:21,207 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([568] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][87], [Black: 191#true, 15#L91-4true, 37#L51-1true, 193#(= |#race~N~0| 0), 224#true, 11#L41-1true, 62#thread3ENTRYtrue, 228#true, 178#L72-1true]) [2022-04-18 16:35:21,208 INFO L384 tUnfolder$Statistics]: this new event has 68 ancestors and is cut-off event [2022-04-18 16:35:21,208 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 16:35:21,208 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 16:35:21,208 INFO L387 tUnfolder$Statistics]: existing Event has 54 ancestors and is cut-off event [2022-04-18 16:35:21,209 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([568] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][87], [Black: 191#true, 15#L91-4true, 193#(= |#race~N~0| 0), 224#true, 77#L62-1true, 11#L41-1true, 176#thread2ENTRYtrue, 228#true, 178#L72-1true]) [2022-04-18 16:35:21,209 INFO L384 tUnfolder$Statistics]: this new event has 68 ancestors and is cut-off event [2022-04-18 16:35:21,209 INFO L387 tUnfolder$Statistics]: existing Event has 54 ancestors and is cut-off event [2022-04-18 16:35:21,209 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 16:35:21,209 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 16:35:21,214 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([568] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][87], [Black: 191#true, 15#L91-4true, 37#L51-1true, 193#(= |#race~N~0| 0), 224#true, 77#L62-1true, 11#L41-1true, 228#true, 178#L72-1true]) [2022-04-18 16:35:21,214 INFO L384 tUnfolder$Statistics]: this new event has 70 ancestors and is cut-off event [2022-04-18 16:35:21,214 INFO L387 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-04-18 16:35:21,214 INFO L387 tUnfolder$Statistics]: existing Event has 56 ancestors and is cut-off event [2022-04-18 16:35:21,215 INFO L387 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-04-18 16:35:21,239 INFO L129 PetriNetUnfolder]: 315/1134 cut-off events. [2022-04-18 16:35:21,239 INFO L130 PetriNetUnfolder]: For 37/59 co-relation queries the response was YES. [2022-04-18 16:35:21,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1644 conditions, 1134 events. 315/1134 cut-off events. For 37/59 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 7258 event pairs, 113 based on Foata normal form. 1/982 useless extension candidates. Maximal degree in co-relation 1635. Up to 246 conditions per place. [2022-04-18 16:35:21,245 INFO L132 encePairwiseOnDemand]: 178/180 looper letters, 0 selfloop transitions, 0 changer transitions 133/133 dead transitions. [2022-04-18 16:35:21,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 133 transitions, 326 flow [2022-04-18 16:35:21,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:21,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:21,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 461 transitions. [2022-04-18 16:35:21,247 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8537037037037037 [2022-04-18 16:35:21,247 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 461 transitions. [2022-04-18 16:35:21,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 461 transitions. [2022-04-18 16:35:21,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:21,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 461 transitions. [2022-04-18 16:35:21,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 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 16:35:21,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 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 16:35:21,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 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 16:35:21,249 INFO L186 Difference]: Start difference. First operand has 140 places, 134 transitions, 302 flow. Second operand 3 states and 461 transitions. [2022-04-18 16:35:21,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 133 transitions, 326 flow [2022-04-18 16:35:21,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 133 transitions, 325 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:35:21,251 INFO L242 Difference]: Finished difference. Result has 140 places, 0 transitions, 0 flow [2022-04-18 16:35:21,251 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=140, PETRI_TRANSITIONS=0} [2022-04-18 16:35:21,252 INFO L335 CegarLoopForPetriNet]: 159 programPoint places, -19 predicate places. [2022-04-18 16:35:21,252 INFO L478 AbstractCegarLoop]: Abstraction has has 140 places, 0 transitions, 0 flow [2022-04-18 16:35:21,252 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 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 16:35:21,254 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (38 of 39 remaining) [2022-04-18 16:35:21,254 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2022-04-18 16:35:21,254 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2022-04-18 16:35:21,255 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2022-04-18 16:35:21,255 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2022-04-18 16:35:21,255 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2022-04-18 16:35:21,255 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2022-04-18 16:35:21,255 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2022-04-18 16:35:21,255 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2022-04-18 16:35:21,255 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2022-04-18 16:35:21,256 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2022-04-18 16:35:21,256 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2022-04-18 16:35:21,256 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2022-04-18 16:35:21,256 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2022-04-18 16:35:21,256 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2022-04-18 16:35:21,256 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2022-04-18 16:35:21,256 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2022-04-18 16:35:21,257 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 39 remaining) [2022-04-18 16:35:21,257 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2022-04-18 16:35:21,257 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2022-04-18 16:35:21,257 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2022-04-18 16:35:21,257 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2022-04-18 16:35:21,257 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2022-04-18 16:35:21,257 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2022-04-18 16:35:21,258 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2022-04-18 16:35:21,258 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2022-04-18 16:35:21,258 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2022-04-18 16:35:21,258 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2022-04-18 16:35:21,258 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2022-04-18 16:35:21,258 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2022-04-18 16:35:21,258 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2022-04-18 16:35:21,259 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2022-04-18 16:35:21,259 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2022-04-18 16:35:21,259 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2022-04-18 16:35:21,259 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2022-04-18 16:35:21,259 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2022-04-18 16:35:21,259 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2022-04-18 16:35:21,259 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2022-04-18 16:35:21,260 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2022-04-18 16:35:21,260 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:35:21,262 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:21,265 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:35:21,265 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:35:21,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:35:21 BasicIcfg [2022-04-18 16:35:21,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:35:21,268 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:35:21,268 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:35:21,268 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:35:21,269 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:35:17" (3/4) ... [2022-04-18 16:35:21,270 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:35:21,273 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:35:21,274 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:35:21,274 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-04-18 16:35:21,274 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2022-04-18 16:35:21,277 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-04-18 16:35:21,277 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:35:21,277 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:35:21,277 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:35:21,303 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:35:21,303 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:35:21,304 INFO L158 Benchmark]: Toolchain (without parser) took 4451.85ms. Allocated memory was 104.9MB in the beginning and 520.1MB in the end (delta: 415.2MB). Free memory was 72.3MB in the beginning and 212.5MB in the end (delta: -140.2MB). Peak memory consumption was 275.8MB. Max. memory is 16.1GB. [2022-04-18 16:35:21,304 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory was 59.1MB in the beginning and 59.1MB in the end (delta: 46.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:35:21,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.08ms. Allocated memory is still 104.9MB. Free memory was 72.1MB in the beginning and 77.8MB in the end (delta: -5.7MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2022-04-18 16:35:21,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.00ms. Allocated memory is still 104.9MB. Free memory was 77.8MB in the beginning and 75.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:35:21,305 INFO L158 Benchmark]: Boogie Preprocessor took 19.55ms. Allocated memory is still 104.9MB. Free memory was 75.7MB in the beginning and 74.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:35:21,305 INFO L158 Benchmark]: RCFGBuilder took 503.35ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 74.0MB in the beginning and 109.6MB in the end (delta: -35.6MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2022-04-18 16:35:21,306 INFO L158 Benchmark]: TraceAbstraction took 3602.72ms. Allocated memory was 134.2MB in the beginning and 520.1MB in the end (delta: 385.9MB). Free memory was 109.1MB in the beginning and 215.6MB in the end (delta: -106.6MB). Peak memory consumption was 277.9MB. Max. memory is 16.1GB. [2022-04-18 16:35:21,306 INFO L158 Benchmark]: Witness Printer took 35.30ms. Allocated memory is still 520.1MB. Free memory was 215.6MB in the beginning and 212.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:35:21,308 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory was 59.1MB in the beginning and 59.1MB in the end (delta: 46.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.08ms. Allocated memory is still 104.9MB. Free memory was 72.1MB in the beginning and 77.8MB in the end (delta: -5.7MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.00ms. Allocated memory is still 104.9MB. Free memory was 77.8MB in the beginning and 75.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.55ms. Allocated memory is still 104.9MB. Free memory was 75.7MB in the beginning and 74.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 503.35ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 74.0MB in the beginning and 109.6MB in the end (delta: -35.6MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3602.72ms. Allocated memory was 134.2MB in the beginning and 520.1MB in the end (delta: 385.9MB). Free memory was 109.1MB in the beginning and 215.6MB in the end (delta: -106.6MB). Peak memory consumption was 277.9MB. Max. memory is 16.1GB. * Witness Printer took 35.30ms. Allocated memory is still 520.1MB. Free memory was 215.6MB in the beginning and 212.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: 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: 62]: 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: 85]: 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: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: 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: 75]: 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 9 procedures, 234 locations, 39 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: 3.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 188 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 535 IncrementalHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 78 mSDtfsCounter, 535 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred in iteration=0, InterpolantAutomatonStates: 36, 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, 583 NumberOfCodeBlocks, 583 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 575 ConstructedInterpolants, 0 QuantifiedInterpolants, 907 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 21 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:35:21,347 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