./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-mult-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-mult-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN --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 2e6a14a531a7a58347cefef713565bcea13a3839848e23eb785379c30b602107 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:04:14,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:04:14,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:04:14,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:04:14,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:04:14,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:04:14,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:04:14,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:04:14,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:04:14,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:04:14,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:04:14,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:04:14,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:04:14,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:04:14,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:04:14,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:04:14,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:04:14,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:04:14,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:04:14,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:04:14,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:04:14,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:04:14,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:04:14,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:04:14,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:04:14,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:04:14,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:04:14,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:04:14,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:04:14,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:04:14,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:04:14,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:04:14,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:04:14,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:04:14,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:04:14,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:04:14,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:04:14,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:04:14,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:04:14,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:04:14,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:04:14,110 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:04:14,141 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:04:14,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:04:14,142 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:04:14,142 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:04:14,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:04:14,143 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:04:14,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:04:14,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:04:14,144 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:04:14,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:04:14,146 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:04:14,146 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:04:14,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:04:14,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:04:14,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:04:14,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:04:14,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:04:14,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:04:14,147 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:04:14,148 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:04:14,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:04:14,148 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:04:14,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:04:14,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:04:14,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:04:14,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:04:14,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:04:14,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:04:14,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:04:14,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:04:14,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:04:14,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:04:14,151 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:04:14,151 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:04:14,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:04:14,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e6a14a531a7a58347cefef713565bcea13a3839848e23eb785379c30b602107 [2022-11-20 12:04:14,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:04:14,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:04:14,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:04:14,518 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:04:14,518 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:04:14,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/popl20-mult-4.wvr.c [2022-11-20 12:04:17,498 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:04:17,707 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:04:17,707 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/sv-benchmarks/c/weaver/popl20-mult-4.wvr.c [2022-11-20 12:04:17,728 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN/data/f7f2d7749/cb39e143ac9b4877866a76f4b783ca2a/FLAG2114a2d26 [2022-11-20 12:04:17,744 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN/data/f7f2d7749/cb39e143ac9b4877866a76f4b783ca2a [2022-11-20 12:04:17,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:04:17,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:04:17,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:04:17,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:04:17,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:04:17,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:04:17" (1/1) ... [2022-11-20 12:04:17,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35125aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:17, skipping insertion in model container [2022-11-20 12:04:17,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:04:17" (1/1) ... [2022-11-20 12:04:17,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:04:17,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:04:18,066 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/sv-benchmarks/c/weaver/popl20-mult-4.wvr.c[2612,2625] [2022-11-20 12:04:18,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:04:18,083 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:04:18,139 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/sv-benchmarks/c/weaver/popl20-mult-4.wvr.c[2612,2625] [2022-11-20 12:04:18,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:04:18,159 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:04:18,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:18 WrapperNode [2022-11-20 12:04:18,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:04:18,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:04:18,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:04:18,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:04:18,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:18" (1/1) ... [2022-11-20 12:04:18,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:18" (1/1) ... [2022-11-20 12:04:18,222 INFO L138 Inliner]: procedures = 23, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 173 [2022-11-20 12:04:18,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:04:18,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:04:18,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:04:18,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:04:18,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:18" (1/1) ... [2022-11-20 12:04:18,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:18" (1/1) ... [2022-11-20 12:04:18,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:18" (1/1) ... [2022-11-20 12:04:18,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:18" (1/1) ... [2022-11-20 12:04:18,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:18" (1/1) ... [2022-11-20 12:04:18,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:18" (1/1) ... [2022-11-20 12:04:18,273 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:18" (1/1) ... [2022-11-20 12:04:18,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:18" (1/1) ... [2022-11-20 12:04:18,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:04:18,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:04:18,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:04:18,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:04:18,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:18" (1/1) ... [2022-11-20 12:04:18,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:04:18,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:04:18,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:04:18,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:04:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:04:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 12:04:18,362 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 12:04:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 12:04:18,362 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 12:04:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 12:04:18,362 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 12:04:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-20 12:04:18,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-20 12:04:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:04:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:04:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:04:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:04:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:04:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:04:18,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:04:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:04:18,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:04:18,366 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:04:18,470 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:04:18,473 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:04:18,852 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:04:19,029 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:04:19,029 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 12:04:19,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:04:19 BoogieIcfgContainer [2022-11-20 12:04:19,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:04:19,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:04:19,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:04:19,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:04:19,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:04:17" (1/3) ... [2022-11-20 12:04:19,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c475070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:04:19, skipping insertion in model container [2022-11-20 12:04:19,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:18" (2/3) ... [2022-11-20 12:04:19,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c475070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:04:19, skipping insertion in model container [2022-11-20 12:04:19,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:04:19" (3/3) ... [2022-11-20 12:04:19,041 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-mult-4.wvr.c [2022-11-20 12:04:19,050 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:04:19,061 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:04:19,061 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-20 12:04:19,061 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:04:19,194 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-20 12:04:19,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 201 places, 198 transitions, 428 flow [2022-11-20 12:04:19,407 INFO L130 PetriNetUnfolder]: 10/194 cut-off events. [2022-11-20 12:04:19,408 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 12:04:19,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 194 events. 10/194 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 227 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2022-11-20 12:04:19,417 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 198 transitions, 428 flow [2022-11-20 12:04:19,428 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 172 transitions, 368 flow [2022-11-20 12:04:19,440 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:04:19,447 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@194bf4ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:04:19,447 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2022-11-20 12:04:19,455 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-11-20 12:04:19,455 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:04:19,455 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:19,456 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:19,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-20 12:04:19,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:19,462 INFO L85 PathProgramCache]: Analyzing trace with hash 18766073, now seen corresponding path program 1 times [2022-11-20 12:04:19,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:19,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219358836] [2022-11-20 12:04:19,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:19,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:19,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:19,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:19,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219358836] [2022-11-20 12:04:19,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219358836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:19,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:19,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:19,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632936033] [2022-11-20 12:04:19,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:19,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:19,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:19,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:19,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:19,786 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 198 [2022-11-20 12:04:19,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 172 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:19,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:19,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 198 [2022-11-20 12:04:19,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:21,079 INFO L130 PetriNetUnfolder]: 2736/5731 cut-off events. [2022-11-20 12:04:21,079 INFO L131 PetriNetUnfolder]: For 694/1123 co-relation queries the response was YES. [2022-11-20 12:04:21,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9878 conditions, 5731 events. 2736/5731 cut-off events. For 694/1123 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 46461 event pairs, 2064 based on Foata normal form. 1/4578 useless extension candidates. Maximal degree in co-relation 9484. Up to 3672 conditions per place. [2022-11-20 12:04:21,198 INFO L137 encePairwiseOnDemand]: 176/198 looper letters, 27 selfloop transitions, 2 changer transitions 1/152 dead transitions. [2022-11-20 12:04:21,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 152 transitions, 386 flow [2022-11-20 12:04:21,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:21,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:21,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2022-11-20 12:04:21,219 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8249158249158249 [2022-11-20 12:04:21,220 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 490 transitions. [2022-11-20 12:04:21,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 490 transitions. [2022-11-20 12:04:21,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:21,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 490 transitions. [2022-11-20 12:04:21,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:21,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:21,241 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:21,243 INFO L175 Difference]: Start difference. First operand has 176 places, 172 transitions, 368 flow. Second operand 3 states and 490 transitions. [2022-11-20 12:04:21,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 152 transitions, 386 flow [2022-11-20 12:04:21,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 152 transitions, 370 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-20 12:04:21,257 INFO L231 Difference]: Finished difference. Result has 155 places, 151 transitions, 314 flow [2022-11-20 12:04:21,259 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=155, PETRI_TRANSITIONS=151} [2022-11-20 12:04:21,265 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -21 predicate places. [2022-11-20 12:04:21,265 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 151 transitions, 314 flow [2022-11-20 12:04:21,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:21,266 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:21,266 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:21,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:04:21,267 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-20 12:04:21,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:21,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1643163133, now seen corresponding path program 1 times [2022-11-20 12:04:21,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:21,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390123679] [2022-11-20 12:04:21,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:21,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:21,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:21,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:21,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390123679] [2022-11-20 12:04:21,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390123679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:21,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:21,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:21,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506166598] [2022-11-20 12:04:21,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:21,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:21,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:21,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:21,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:21,404 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 198 [2022-11-20 12:04:21,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 151 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:21,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:21,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 198 [2022-11-20 12:04:21,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:21,538 INFO L130 PetriNetUnfolder]: 121/630 cut-off events. [2022-11-20 12:04:21,538 INFO L131 PetriNetUnfolder]: For 30/34 co-relation queries the response was YES. [2022-11-20 12:04:21,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 630 events. 121/630 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3031 event pairs, 51 based on Foata normal form. 0/519 useless extension candidates. Maximal degree in co-relation 789. Up to 169 conditions per place. [2022-11-20 12:04:21,546 INFO L137 encePairwiseOnDemand]: 195/198 looper letters, 18 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2022-11-20 12:04:21,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 150 transitions, 352 flow [2022-11-20 12:04:21,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:21,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:21,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 489 transitions. [2022-11-20 12:04:21,549 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8232323232323232 [2022-11-20 12:04:21,549 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 489 transitions. [2022-11-20 12:04:21,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 489 transitions. [2022-11-20 12:04:21,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:21,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 489 transitions. [2022-11-20 12:04:21,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:21,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:21,554 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:21,555 INFO L175 Difference]: Start difference. First operand has 155 places, 151 transitions, 314 flow. Second operand 3 states and 489 transitions. [2022-11-20 12:04:21,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 150 transitions, 352 flow [2022-11-20 12:04:21,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 150 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:04:21,563 INFO L231 Difference]: Finished difference. Result has 153 places, 150 transitions, 312 flow [2022-11-20 12:04:21,563 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=153, PETRI_TRANSITIONS=150} [2022-11-20 12:04:21,565 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -23 predicate places. [2022-11-20 12:04:21,565 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 150 transitions, 312 flow [2022-11-20 12:04:21,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:21,565 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:21,566 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:21,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:04:21,566 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-20 12:04:21,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:21,568 INFO L85 PathProgramCache]: Analyzing trace with hash -2095930740, now seen corresponding path program 1 times [2022-11-20 12:04:21,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:21,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705828727] [2022-11-20 12:04:21,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:21,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:21,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:21,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:21,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705828727] [2022-11-20 12:04:21,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705828727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:21,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:21,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:21,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964628112] [2022-11-20 12:04:21,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:21,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:21,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:21,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:21,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:21,696 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 198 [2022-11-20 12:04:21,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 150 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:21,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:21,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 198 [2022-11-20 12:04:21,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:21,834 INFO L130 PetriNetUnfolder]: 121/629 cut-off events. [2022-11-20 12:04:21,834 INFO L131 PetriNetUnfolder]: For 31/35 co-relation queries the response was YES. [2022-11-20 12:04:21,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 815 conditions, 629 events. 121/629 cut-off events. For 31/35 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3021 event pairs, 51 based on Foata normal form. 0/519 useless extension candidates. Maximal degree in co-relation 777. Up to 164 conditions per place. [2022-11-20 12:04:21,842 INFO L137 encePairwiseOnDemand]: 196/198 looper letters, 15 selfloop transitions, 1 changer transitions 0/149 dead transitions. [2022-11-20 12:04:21,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 149 transitions, 342 flow [2022-11-20 12:04:21,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:21,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:21,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 494 transitions. [2022-11-20 12:04:21,845 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8316498316498316 [2022-11-20 12:04:21,846 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 494 transitions. [2022-11-20 12:04:21,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 494 transitions. [2022-11-20 12:04:21,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:21,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 494 transitions. [2022-11-20 12:04:21,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:21,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:21,850 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:21,851 INFO L175 Difference]: Start difference. First operand has 153 places, 150 transitions, 312 flow. Second operand 3 states and 494 transitions. [2022-11-20 12:04:21,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 149 transitions, 342 flow [2022-11-20 12:04:21,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 149 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:04:21,855 INFO L231 Difference]: Finished difference. Result has 152 places, 149 transitions, 308 flow [2022-11-20 12:04:21,855 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=152, PETRI_TRANSITIONS=149} [2022-11-20 12:04:21,856 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -24 predicate places. [2022-11-20 12:04:21,857 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 149 transitions, 308 flow [2022-11-20 12:04:21,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:21,857 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:21,858 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:21,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:04:21,858 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-20 12:04:21,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:21,859 INFO L85 PathProgramCache]: Analyzing trace with hash 795453930, now seen corresponding path program 1 times [2022-11-20 12:04:21,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:21,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251577133] [2022-11-20 12:04:21,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:21,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:21,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:21,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:21,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251577133] [2022-11-20 12:04:21,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251577133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:21,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:21,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:21,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910831181] [2022-11-20 12:04:21,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:21,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:21,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:21,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:21,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:21,922 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 198 [2022-11-20 12:04:21,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 149 transitions, 308 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:21,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:21,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 198 [2022-11-20 12:04:21,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:22,355 INFO L130 PetriNetUnfolder]: 1225/3017 cut-off events. [2022-11-20 12:04:22,355 INFO L131 PetriNetUnfolder]: For 85/283 co-relation queries the response was YES. [2022-11-20 12:04:22,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4752 conditions, 3017 events. 1225/3017 cut-off events. For 85/283 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 22763 event pairs, 747 based on Foata normal form. 0/2703 useless extension candidates. Maximal degree in co-relation 4714. Up to 1640 conditions per place. [2022-11-20 12:04:22,380 INFO L137 encePairwiseOnDemand]: 190/198 looper letters, 25 selfloop transitions, 4 changer transitions 0/152 dead transitions. [2022-11-20 12:04:22,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 152 transitions, 375 flow [2022-11-20 12:04:22,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:22,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:22,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 483 transitions. [2022-11-20 12:04:22,383 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8131313131313131 [2022-11-20 12:04:22,383 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 483 transitions. [2022-11-20 12:04:22,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 483 transitions. [2022-11-20 12:04:22,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:22,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 483 transitions. [2022-11-20 12:04:22,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:22,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:22,387 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:22,387 INFO L175 Difference]: Start difference. First operand has 152 places, 149 transitions, 308 flow. Second operand 3 states and 483 transitions. [2022-11-20 12:04:22,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 152 transitions, 375 flow [2022-11-20 12:04:22,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 152 transitions, 374 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:04:22,391 INFO L231 Difference]: Finished difference. Result has 150 places, 149 transitions, 327 flow [2022-11-20 12:04:22,391 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=150, PETRI_TRANSITIONS=149} [2022-11-20 12:04:22,392 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -26 predicate places. [2022-11-20 12:04:22,392 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 149 transitions, 327 flow [2022-11-20 12:04:22,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:22,393 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:22,393 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:22,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:04:22,394 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-20 12:04:22,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:22,394 INFO L85 PathProgramCache]: Analyzing trace with hash 84556006, now seen corresponding path program 1 times [2022-11-20 12:04:22,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:22,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285227477] [2022-11-20 12:04:22,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:22,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:22,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:22,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:22,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285227477] [2022-11-20 12:04:22,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285227477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:22,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:22,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:04:22,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252511442] [2022-11-20 12:04:22,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:22,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:04:22,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:22,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:04:22,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:04:22,974 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 198 [2022-11-20 12:04:22,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 149 transitions, 327 flow. Second operand has 6 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:22,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:22,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 198 [2022-11-20 12:04:22,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:23,131 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([600] 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][82], [214#(= |#race~c~0| 0), 75#L93-4true, 17#L51-1true, 221#true, 192#L62-1true, 187#L41-1true, Black: 216#true, 218#(= |#race~N~0| 0)]) [2022-11-20 12:04:23,132 INFO L383 tUnfolder$Statistics]: this new event has 75 ancestors and is cut-off event [2022-11-20 12:04:23,132 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-20 12:04:23,132 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-20 12:04:23,132 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-20 12:04:23,219 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][99], [214#(= |#race~c~0| 0), 5#L94-4true, 17#L51-1true, 61#thread3ENTRYtrue, 221#true, 187#L41-1true, 97#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0)]) [2022-11-20 12:04:23,219 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-20 12:04:23,219 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-20 12:04:23,219 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-20 12:04:23,220 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-20 12:04:23,221 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] 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][99], [214#(= |#race~c~0| 0), 5#L94-4true, 104#thread2ENTRYtrue, 221#true, 192#L62-1true, 187#L41-1true, 97#L72-1true, 218#(= |#race~N~0| 0), Black: 216#true]) [2022-11-20 12:04:23,222 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-20 12:04:23,222 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-20 12:04:23,222 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-20 12:04:23,222 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-20 12:04:23,234 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][99], [214#(= |#race~c~0| 0), 5#L94-4true, 17#L51-1true, 221#true, 192#L62-1true, 62#thread1ENTRYtrue, 97#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0)]) [2022-11-20 12:04:23,234 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-20 12:04:23,234 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-20 12:04:23,234 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-20 12:04:23,234 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-20 12:04:23,267 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] 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][99], [214#(= |#race~c~0| 0), 5#L94-4true, 17#L51-1true, 221#true, 192#L62-1true, 187#L41-1true, 218#(= |#race~N~0| 0), 97#L72-1true, Black: 216#true]) [2022-11-20 12:04:23,267 INFO L383 tUnfolder$Statistics]: this new event has 83 ancestors and is cut-off event [2022-11-20 12:04:23,268 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-20 12:04:23,268 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-20 12:04:23,268 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-20 12:04:23,560 INFO L130 PetriNetUnfolder]: 1335/2758 cut-off events. [2022-11-20 12:04:23,560 INFO L131 PetriNetUnfolder]: For 3/20 co-relation queries the response was YES. [2022-11-20 12:04:23,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4800 conditions, 2758 events. 1335/2758 cut-off events. For 3/20 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 19808 event pairs, 203 based on Foata normal form. 12/2430 useless extension candidates. Maximal degree in co-relation 4762. Up to 839 conditions per place. [2022-11-20 12:04:23,591 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 51 selfloop transitions, 4 changer transitions 0/164 dead transitions. [2022-11-20 12:04:23,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 164 transitions, 467 flow [2022-11-20 12:04:23,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:04:23,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:04:23,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 866 transitions. [2022-11-20 12:04:23,594 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7289562289562289 [2022-11-20 12:04:23,594 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 866 transitions. [2022-11-20 12:04:23,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 866 transitions. [2022-11-20 12:04:23,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:23,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 866 transitions. [2022-11-20 12:04:23,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:23,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:23,601 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:23,601 INFO L175 Difference]: Start difference. First operand has 150 places, 149 transitions, 327 flow. Second operand 6 states and 866 transitions. [2022-11-20 12:04:23,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 164 transitions, 467 flow [2022-11-20 12:04:23,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 164 transitions, 467 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:04:23,604 INFO L231 Difference]: Finished difference. Result has 154 places, 148 transitions, 333 flow [2022-11-20 12:04:23,605 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=333, PETRI_PLACES=154, PETRI_TRANSITIONS=148} [2022-11-20 12:04:23,605 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -22 predicate places. [2022-11-20 12:04:23,606 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 148 transitions, 333 flow [2022-11-20 12:04:23,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:23,607 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:23,607 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:23,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:04:23,607 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-20 12:04:23,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:23,608 INFO L85 PathProgramCache]: Analyzing trace with hash -460351271, now seen corresponding path program 1 times [2022-11-20 12:04:23,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:23,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205802290] [2022-11-20 12:04:23,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:23,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:24,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:24,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:24,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205802290] [2022-11-20 12:04:24,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205802290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:24,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:24,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:04:24,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472426205] [2022-11-20 12:04:24,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:24,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:04:24,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:24,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:04:24,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:04:24,044 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 198 [2022-11-20 12:04:24,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 148 transitions, 333 flow. Second operand has 6 states, 6 states have (on average 138.16666666666666) internal successors, (829), 6 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:24,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:24,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 198 [2022-11-20 12:04:24,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:24,238 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][99], [5#L94-4true, 214#(= |#race~c~0| 0), 17#L51-1true, 221#true, 192#L62-1true, 62#thread1ENTRYtrue, 218#(= |#race~N~0| 0), 97#L72-1true, Black: 216#true, 228#true]) [2022-11-20 12:04:24,238 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-20 12:04:24,239 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-20 12:04:24,239 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-20 12:04:24,239 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-20 12:04:24,281 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] 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][99], [5#L94-4true, 214#(= |#race~c~0| 0), 17#L51-1true, 221#true, 192#L62-1true, 187#L41-1true, 97#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0), 228#true]) [2022-11-20 12:04:24,282 INFO L383 tUnfolder$Statistics]: this new event has 83 ancestors and is cut-off event [2022-11-20 12:04:24,282 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-20 12:04:24,282 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-20 12:04:24,282 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-20 12:04:24,513 INFO L130 PetriNetUnfolder]: 1188/2513 cut-off events. [2022-11-20 12:04:24,514 INFO L131 PetriNetUnfolder]: For 78/84 co-relation queries the response was YES. [2022-11-20 12:04:24,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4550 conditions, 2513 events. 1188/2513 cut-off events. For 78/84 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 17870 event pairs, 605 based on Foata normal form. 0/2135 useless extension candidates. Maximal degree in co-relation 4511. Up to 1153 conditions per place. [2022-11-20 12:04:24,552 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 46 selfloop transitions, 4 changer transitions 0/159 dead transitions. [2022-11-20 12:04:24,552 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 159 transitions, 455 flow [2022-11-20 12:04:24,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:04:24,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:04:24,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 861 transitions. [2022-11-20 12:04:24,555 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7247474747474747 [2022-11-20 12:04:24,556 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 861 transitions. [2022-11-20 12:04:24,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 861 transitions. [2022-11-20 12:04:24,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:24,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 861 transitions. [2022-11-20 12:04:24,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:24,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:24,562 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:24,562 INFO L175 Difference]: Start difference. First operand has 154 places, 148 transitions, 333 flow. Second operand 6 states and 861 transitions. [2022-11-20 12:04:24,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 159 transitions, 455 flow [2022-11-20 12:04:24,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 159 transitions, 448 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:04:24,566 INFO L231 Difference]: Finished difference. Result has 154 places, 147 transitions, 332 flow [2022-11-20 12:04:24,566 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=332, PETRI_PLACES=154, PETRI_TRANSITIONS=147} [2022-11-20 12:04:24,569 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -22 predicate places. [2022-11-20 12:04:24,570 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 147 transitions, 332 flow [2022-11-20 12:04:24,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.16666666666666) internal successors, (829), 6 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:24,570 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:24,570 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:24,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:04:24,571 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-20 12:04:24,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:24,572 INFO L85 PathProgramCache]: Analyzing trace with hash 947211220, now seen corresponding path program 1 times [2022-11-20 12:04:24,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:24,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834465815] [2022-11-20 12:04:24,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:24,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:25,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:25,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:25,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834465815] [2022-11-20 12:04:25,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834465815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:25,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:25,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:04:25,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591887850] [2022-11-20 12:04:25,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:25,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:04:25,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:25,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:04:25,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:04:25,186 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 198 [2022-11-20 12:04:25,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 147 transitions, 332 flow. Second operand has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:25,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:25,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 198 [2022-11-20 12:04:25,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:25,607 INFO L130 PetriNetUnfolder]: 1008/2193 cut-off events. [2022-11-20 12:04:25,607 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-20 12:04:25,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3891 conditions, 2193 events. 1008/2193 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 15219 event pairs, 685 based on Foata normal form. 0/1879 useless extension candidates. Maximal degree in co-relation 3852. Up to 1254 conditions per place. [2022-11-20 12:04:25,635 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 41 selfloop transitions, 4 changer transitions 0/154 dead transitions. [2022-11-20 12:04:25,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 154 transitions, 436 flow [2022-11-20 12:04:25,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:04:25,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:04:25,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 856 transitions. [2022-11-20 12:04:25,638 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7205387205387206 [2022-11-20 12:04:25,638 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 856 transitions. [2022-11-20 12:04:25,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 856 transitions. [2022-11-20 12:04:25,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:25,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 856 transitions. [2022-11-20 12:04:25,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 142.66666666666666) internal successors, (856), 6 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:25,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:25,644 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:25,645 INFO L175 Difference]: Start difference. First operand has 154 places, 147 transitions, 332 flow. Second operand 6 states and 856 transitions. [2022-11-20 12:04:25,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 154 transitions, 436 flow [2022-11-20 12:04:25,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 154 transitions, 429 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:04:25,649 INFO L231 Difference]: Finished difference. Result has 154 places, 146 transitions, 331 flow [2022-11-20 12:04:25,649 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=331, PETRI_PLACES=154, PETRI_TRANSITIONS=146} [2022-11-20 12:04:25,650 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -22 predicate places. [2022-11-20 12:04:25,650 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 146 transitions, 331 flow [2022-11-20 12:04:25,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:25,651 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:25,651 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:25,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:04:25,651 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-20 12:04:25,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:25,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1669995861, now seen corresponding path program 1 times [2022-11-20 12:04:25,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:25,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094255233] [2022-11-20 12:04:25,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:25,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:26,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:26,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:26,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094255233] [2022-11-20 12:04:26,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094255233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:26,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:26,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:04:26,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706872357] [2022-11-20 12:04:26,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:26,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:04:26,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:26,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:04:26,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:04:26,227 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 198 [2022-11-20 12:04:26,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 146 transitions, 331 flow. Second operand has 6 states, 6 states have (on average 140.16666666666666) internal successors, (841), 6 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:26,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:26,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 198 [2022-11-20 12:04:26,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:26,330 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([600] L62-6-->L62-1: Formula: (= |v_#race~N~0_7| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_7|} AuxVars[] AssignedVars[#race~N~0][82], [214#(= |#race~c~0| 0), 75#L93-4true, 17#L51-1true, 235#true, 242#true, 192#L62-1true, 187#L41-1true, 218#(= |#race~N~0| 0), Black: 216#true]) [2022-11-20 12:04:26,330 INFO L383 tUnfolder$Statistics]: this new event has 75 ancestors and is cut-off event [2022-11-20 12:04:26,330 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-20 12:04:26,330 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-20 12:04:26,330 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-20 12:04:26,612 INFO L130 PetriNetUnfolder]: 1017/2185 cut-off events. [2022-11-20 12:04:26,612 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-20 12:04:26,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3863 conditions, 2185 events. 1017/2185 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 15065 event pairs, 703 based on Foata normal form. 0/1887 useless extension candidates. Maximal degree in co-relation 3824. Up to 1331 conditions per place. [2022-11-20 12:04:26,638 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 36 selfloop transitions, 4 changer transitions 0/149 dead transitions. [2022-11-20 12:04:26,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 149 transitions, 417 flow [2022-11-20 12:04:26,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:04:26,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:04:26,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 851 transitions. [2022-11-20 12:04:26,641 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7163299663299664 [2022-11-20 12:04:26,641 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 851 transitions. [2022-11-20 12:04:26,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 851 transitions. [2022-11-20 12:04:26,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:26,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 851 transitions. [2022-11-20 12:04:26,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.83333333333334) internal successors, (851), 6 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:26,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:26,647 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:26,647 INFO L175 Difference]: Start difference. First operand has 154 places, 146 transitions, 331 flow. Second operand 6 states and 851 transitions. [2022-11-20 12:04:26,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 149 transitions, 417 flow [2022-11-20 12:04:26,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 149 transitions, 410 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:04:26,651 INFO L231 Difference]: Finished difference. Result has 154 places, 145 transitions, 330 flow [2022-11-20 12:04:26,652 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=154, PETRI_TRANSITIONS=145} [2022-11-20 12:04:26,655 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -22 predicate places. [2022-11-20 12:04:26,656 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 145 transitions, 330 flow [2022-11-20 12:04:26,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.16666666666666) internal successors, (841), 6 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:26,657 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:26,657 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:26,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:04:26,658 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-20 12:04:26,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:26,658 INFO L85 PathProgramCache]: Analyzing trace with hash 107999768, now seen corresponding path program 1 times [2022-11-20 12:04:26,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:26,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976348020] [2022-11-20 12:04:26,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:26,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:26,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:26,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:26,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976348020] [2022-11-20 12:04:26,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976348020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:26,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:26,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:26,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787276026] [2022-11-20 12:04:26,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:26,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:26,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:26,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:26,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:26,741 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 198 [2022-11-20 12:04:26,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 145 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:26,743 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:26,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 198 [2022-11-20 12:04:26,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:26,800 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([600] 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][82], [214#(= |#race~c~0| 0), 75#L93-4true, 17#L51-1true, 242#true, 192#L62-1true, 249#true, 187#L41-1true, 218#(= |#race~N~0| 0), Black: 216#true]) [2022-11-20 12:04:26,800 INFO L383 tUnfolder$Statistics]: this new event has 75 ancestors and is cut-off event [2022-11-20 12:04:26,800 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-20 12:04:26,800 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-20 12:04:26,801 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-20 12:04:26,832 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][99], [214#(= |#race~c~0| 0), 5#L94-4true, 17#L51-1true, 61#thread3ENTRYtrue, 242#true, 249#true, 187#L41-1true, Black: 216#true, 218#(= |#race~N~0| 0), 97#L72-1true]) [2022-11-20 12:04:26,833 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-20 12:04:26,833 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-20 12:04:26,833 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-20 12:04:26,833 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-20 12:04:26,834 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] 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][99], [214#(= |#race~c~0| 0), 5#L94-4true, 104#thread2ENTRYtrue, 242#true, 192#L62-1true, 249#true, 187#L41-1true, 97#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0)]) [2022-11-20 12:04:26,834 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-20 12:04:26,834 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-20 12:04:26,834 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-20 12:04:26,834 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-20 12:04:26,838 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][99], [214#(= |#race~c~0| 0), 5#L94-4true, 17#L51-1true, 242#true, 192#L62-1true, 249#true, 62#thread1ENTRYtrue, 97#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0)]) [2022-11-20 12:04:26,838 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-20 12:04:26,838 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-20 12:04:26,838 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-20 12:04:26,839 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-20 12:04:26,845 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] 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][99], [214#(= |#race~c~0| 0), 5#L94-4true, 17#L51-1true, 242#true, 192#L62-1true, 249#true, 187#L41-1true, 97#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0)]) [2022-11-20 12:04:26,845 INFO L383 tUnfolder$Statistics]: this new event has 83 ancestors and is cut-off event [2022-11-20 12:04:26,846 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-20 12:04:26,846 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-20 12:04:26,846 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-20 12:04:26,897 INFO L130 PetriNetUnfolder]: 319/1147 cut-off events. [2022-11-20 12:04:26,897 INFO L131 PetriNetUnfolder]: For 37/60 co-relation queries the response was YES. [2022-11-20 12:04:26,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1668 conditions, 1147 events. 319/1147 cut-off events. For 37/60 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 7223 event pairs, 114 based on Foata normal form. 1/993 useless extension candidates. Maximal degree in co-relation 1641. Up to 247 conditions per place. [2022-11-20 12:04:26,907 INFO L137 encePairwiseOnDemand]: 196/198 looper letters, 0 selfloop transitions, 0 changer transitions 144/144 dead transitions. [2022-11-20 12:04:26,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 144 transitions, 354 flow [2022-11-20 12:04:26,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:26,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:26,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 500 transitions. [2022-11-20 12:04:26,910 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8417508417508418 [2022-11-20 12:04:26,910 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 500 transitions. [2022-11-20 12:04:26,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 500 transitions. [2022-11-20 12:04:26,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:26,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 500 transitions. [2022-11-20 12:04:26,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:26,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:26,913 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:26,914 INFO L175 Difference]: Start difference. First operand has 154 places, 145 transitions, 330 flow. Second operand 3 states and 500 transitions. [2022-11-20 12:04:26,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 144 transitions, 354 flow [2022-11-20 12:04:26,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 144 transitions, 347 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:04:26,916 INFO L231 Difference]: Finished difference. Result has 151 places, 0 transitions, 0 flow [2022-11-20 12:04:26,916 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=151, PETRI_TRANSITIONS=0} [2022-11-20 12:04:26,918 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -25 predicate places. [2022-11-20 12:04:26,918 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 0 transitions, 0 flow [2022-11-20 12:04:26,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:04:26,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (47 of 48 remaining) [2022-11-20 12:04:26,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (46 of 48 remaining) [2022-11-20 12:04:26,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (45 of 48 remaining) [2022-11-20 12:04:26,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (44 of 48 remaining) [2022-11-20 12:04:26,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (43 of 48 remaining) [2022-11-20 12:04:26,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (42 of 48 remaining) [2022-11-20 12:04:26,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (41 of 48 remaining) [2022-11-20 12:04:26,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (40 of 48 remaining) [2022-11-20 12:04:26,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (39 of 48 remaining) [2022-11-20 12:04:26,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (38 of 48 remaining) [2022-11-20 12:04:26,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (37 of 48 remaining) [2022-11-20 12:04:26,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (36 of 48 remaining) [2022-11-20 12:04:26,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (35 of 48 remaining) [2022-11-20 12:04:26,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 48 remaining) [2022-11-20 12:04:26,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 48 remaining) [2022-11-20 12:04:26,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 48 remaining) [2022-11-20 12:04:26,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 48 remaining) [2022-11-20 12:04:26,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 48 remaining) [2022-11-20 12:04:26,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 48 remaining) [2022-11-20 12:04:26,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 48 remaining) [2022-11-20 12:04:26,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 48 remaining) [2022-11-20 12:04:26,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 48 remaining) [2022-11-20 12:04:26,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 48 remaining) [2022-11-20 12:04:26,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 48 remaining) [2022-11-20 12:04:26,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 48 remaining) [2022-11-20 12:04:26,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (22 of 48 remaining) [2022-11-20 12:04:26,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (21 of 48 remaining) [2022-11-20 12:04:26,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (20 of 48 remaining) [2022-11-20 12:04:26,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (19 of 48 remaining) [2022-11-20 12:04:26,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (18 of 48 remaining) [2022-11-20 12:04:26,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 48 remaining) [2022-11-20 12:04:26,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 48 remaining) [2022-11-20 12:04:26,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 48 remaining) [2022-11-20 12:04:26,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 48 remaining) [2022-11-20 12:04:26,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (13 of 48 remaining) [2022-11-20 12:04:26,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (12 of 48 remaining) [2022-11-20 12:04:26,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (11 of 48 remaining) [2022-11-20 12:04:26,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (10 of 48 remaining) [2022-11-20 12:04:26,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (9 of 48 remaining) [2022-11-20 12:04:26,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (8 of 48 remaining) [2022-11-20 12:04:26,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (7 of 48 remaining) [2022-11-20 12:04:26,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (6 of 48 remaining) [2022-11-20 12:04:26,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (5 of 48 remaining) [2022-11-20 12:04:26,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (4 of 48 remaining) [2022-11-20 12:04:26,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (3 of 48 remaining) [2022-11-20 12:04:26,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (2 of 48 remaining) [2022-11-20 12:04:26,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (1 of 48 remaining) [2022-11-20 12:04:26,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (0 of 48 remaining) [2022-11-20 12:04:26,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:04:26,939 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:26,945 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:04:26,945 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:04:26,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:04:26 BasicIcfg [2022-11-20 12:04:26,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:04:26,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:04:26,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:04:26,951 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:04:26,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:04:19" (3/4) ... [2022-11-20 12:04:26,954 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:04:26,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 12:04:26,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 12:04:26,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-20 12:04:26,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2022-11-20 12:04:26,963 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-20 12:04:26,964 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 12:04:26,964 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 12:04:26,964 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:04:27,000 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:04:27,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:04:27,001 INFO L158 Benchmark]: Toolchain (without parser) took 9253.33ms. Allocated memory was 138.4MB in the beginning and 461.4MB in the end (delta: 323.0MB). Free memory was 112.0MB in the beginning and 300.8MB in the end (delta: -188.8MB). Peak memory consumption was 134.8MB. Max. memory is 16.1GB. [2022-11-20 12:04:27,001 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:04:27,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.84ms. Allocated memory is still 138.4MB. Free memory was 112.0MB in the beginning and 100.0MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 12:04:27,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.64ms. Allocated memory is still 138.4MB. Free memory was 100.0MB in the beginning and 97.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:04:27,002 INFO L158 Benchmark]: Boogie Preprocessor took 48.29ms. Allocated memory is still 138.4MB. Free memory was 97.0MB in the beginning and 95.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:04:27,002 INFO L158 Benchmark]: RCFGBuilder took 753.92ms. Allocated memory is still 138.4MB. Free memory was 95.2MB in the beginning and 66.4MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-20 12:04:27,003 INFO L158 Benchmark]: TraceAbstraction took 7915.51ms. Allocated memory was 138.4MB in the beginning and 461.4MB in the end (delta: 323.0MB). Free memory was 65.8MB in the beginning and 303.9MB in the end (delta: -238.1MB). Peak memory consumption was 86.6MB. Max. memory is 16.1GB. [2022-11-20 12:04:27,003 INFO L158 Benchmark]: Witness Printer took 49.92ms. Allocated memory is still 461.4MB. Free memory was 303.9MB in the beginning and 300.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:04:27,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.84ms. Allocated memory is still 138.4MB. Free memory was 112.0MB in the beginning and 100.0MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.64ms. Allocated memory is still 138.4MB. Free memory was 100.0MB in the beginning and 97.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.29ms. Allocated memory is still 138.4MB. Free memory was 97.0MB in the beginning and 95.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 753.92ms. Allocated memory is still 138.4MB. Free memory was 95.2MB in the beginning and 66.4MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7915.51ms. Allocated memory was 138.4MB in the beginning and 461.4MB in the end (delta: 323.0MB). Free memory was 65.8MB in the beginning and 303.9MB in the end (delta: -238.1MB). Peak memory consumption was 86.6MB. Max. memory is 16.1GB. * Witness Printer took 49.92ms. Allocated memory is still 461.4MB. Free memory was 303.9MB in the beginning and 300.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 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: 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: 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: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: 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: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: 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 - 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, 255 locations, 48 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: 7.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 537 IncrementalHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 87 mSDtfsCounter, 537 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=368occurred in iteration=0, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 612 NumberOfCodeBlocks, 612 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 603 ConstructedInterpolants, 0 QuantifiedInterpolants, 937 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 26 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 12:04:27,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03422c78-e76e-4d74-af10-6116cb234338/bin/uautomizer-ug76WZFUDN/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