./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS --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 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 --- 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-4e7fbc6 [2022-11-23 04:10:32,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 04:10:32,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 04:10:32,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 04:10:32,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 04:10:32,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 04:10:32,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 04:10:32,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 04:10:32,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 04:10:32,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 04:10:32,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 04:10:32,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 04:10:32,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 04:10:32,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 04:10:32,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 04:10:32,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 04:10:32,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 04:10:32,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 04:10:32,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 04:10:32,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 04:10:32,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 04:10:32,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 04:10:32,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 04:10:32,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 04:10:32,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 04:10:32,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 04:10:32,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 04:10:32,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 04:10:32,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 04:10:32,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 04:10:32,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 04:10:32,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 04:10:32,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 04:10:32,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 04:10:32,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 04:10:32,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 04:10:32,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 04:10:32,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 04:10:32,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 04:10:32,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 04:10:32,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 04:10:32,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-23 04:10:32,226 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 04:10:32,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 04:10:32,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 04:10:32,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 04:10:32,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 04:10:32,228 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 04:10:32,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 04:10:32,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 04:10:32,229 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 04:10:32,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 04:10:32,230 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 04:10:32,230 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 04:10:32,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 04:10:32,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 04:10:32,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 04:10:32,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 04:10:32,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 04:10:32,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 04:10:32,232 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 04:10:32,232 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 04:10:32,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 04:10:32,232 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 04:10:32,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 04:10:32,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 04:10:32,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 04:10:32,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 04:10:32,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 04:10:32,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 04:10:32,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 04:10:32,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 04:10:32,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 04:10:32,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 04:10:32,235 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 04:10:32,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 04:10:32,236 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 04:10:32,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 04:10:32,236 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 [2022-11-23 04:10:32,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 04:10:32,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 04:10:32,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 04:10:32,580 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 04:10:32,581 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 04:10:32,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2022-11-23 04:10:35,702 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 04:10:36,015 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 04:10:36,016 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2022-11-23 04:10:36,038 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS/data/f9f0f6f10/3fe62015b19e4072973072bbdb2d5d3a/FLAG04f6708e9 [2022-11-23 04:10:36,060 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS/data/f9f0f6f10/3fe62015b19e4072973072bbdb2d5d3a [2022-11-23 04:10:36,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 04:10:36,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 04:10:36,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 04:10:36,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 04:10:36,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 04:10:36,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:10:36" (1/1) ... [2022-11-23 04:10:36,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2518c725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:36, skipping insertion in model container [2022-11-23 04:10:36,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:10:36" (1/1) ... [2022-11-23 04:10:36,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 04:10:36,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 04:10:36,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 04:10:36,799 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 04:10:36,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 04:10:36,919 INFO L208 MainTranslator]: Completed translation [2022-11-23 04:10:36,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:36 WrapperNode [2022-11-23 04:10:36,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 04:10:36,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 04:10:36,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 04:10:36,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 04:10:36,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:36" (1/1) ... [2022-11-23 04:10:36,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:36" (1/1) ... [2022-11-23 04:10:36,968 INFO L138 Inliner]: procedures = 365, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2022-11-23 04:10:36,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 04:10:36,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 04:10:36,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 04:10:36,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 04:10:36,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:36" (1/1) ... [2022-11-23 04:10:36,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:36" (1/1) ... [2022-11-23 04:10:37,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:36" (1/1) ... [2022-11-23 04:10:37,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:36" (1/1) ... [2022-11-23 04:10:37,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:36" (1/1) ... [2022-11-23 04:10:37,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:36" (1/1) ... [2022-11-23 04:10:37,019 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:36" (1/1) ... [2022-11-23 04:10:37,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:36" (1/1) ... [2022-11-23 04:10:37,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 04:10:37,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 04:10:37,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 04:10:37,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 04:10:37,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:36" (1/1) ... [2022-11-23 04:10:37,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 04:10:37,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 04:10:37,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 04:10:37,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 04:10:37,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 04:10:37,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 04:10:37,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 04:10:37,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 04:10:37,133 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 04:10:37,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 04:10:37,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 04:10:37,136 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 04:10:37,136 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 04:10:37,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 04:10:37,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 04:10:37,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 04:10:37,138 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 04:10:37,383 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 04:10:37,385 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 04:10:37,708 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 04:10:37,714 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 04:10:37,718 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 04:10:37,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:10:37 BoogieIcfgContainer [2022-11-23 04:10:37,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 04:10:37,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 04:10:37,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 04:10:37,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 04:10:37,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:10:36" (1/3) ... [2022-11-23 04:10:37,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7de828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:10:37, skipping insertion in model container [2022-11-23 04:10:37,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:36" (2/3) ... [2022-11-23 04:10:37,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7de828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:10:37, skipping insertion in model container [2022-11-23 04:10:37,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:10:37" (3/3) ... [2022-11-23 04:10:37,736 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_26-malloc_struct.i [2022-11-23 04:10:37,747 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 04:10:37,758 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 04:10:37,759 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-23 04:10:37,759 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 04:10:37,838 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 04:10:37,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 97 transitions, 199 flow [2022-11-23 04:10:37,922 INFO L130 PetriNetUnfolder]: 0/96 cut-off events. [2022-11-23 04:10:37,922 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 04:10:37,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 96 events. 0/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-23 04:10:37,929 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 97 transitions, 199 flow [2022-11-23 04:10:37,933 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 96 transitions, 195 flow [2022-11-23 04:10:37,937 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 04:10:37,953 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 96 transitions, 195 flow [2022-11-23 04:10:37,956 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 96 transitions, 195 flow [2022-11-23 04:10:37,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 96 transitions, 195 flow [2022-11-23 04:10:37,983 INFO L130 PetriNetUnfolder]: 0/96 cut-off events. [2022-11-23 04:10:37,983 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 04:10:37,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 96 events. 0/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-23 04:10:37,985 INFO L119 LiptonReduction]: Number of co-enabled transitions 1920 [2022-11-23 04:10:41,222 INFO L134 LiptonReduction]: Checked pairs total: 11528 [2022-11-23 04:10:41,223 INFO L136 LiptonReduction]: Total number of compositions: 74 [2022-11-23 04:10:41,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 04:10:41,265 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;@69543146, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 04:10:41,266 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-23 04:10:41,267 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-23 04:10:41,267 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 04:10:41,268 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:10:41,268 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-23 04:10:41,269 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-23 04:10:41,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:10:41,282 INFO L85 PathProgramCache]: Analyzing trace with hash 326, now seen corresponding path program 1 times [2022-11-23 04:10:41,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:10:41,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168351084] [2022-11-23 04:10:41,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:10:41,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:10:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:10:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:10:41,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:10:41,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168351084] [2022-11-23 04:10:41,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168351084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:10:41,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:10:41,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 04:10:41,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671962139] [2022-11-23 04:10:41,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:10:41,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 04:10:41,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:10:41,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 04:10:41,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 04:10:41,444 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 171 [2022-11-23 04:10:41,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 39 transitions, 81 flow. Second operand has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:41,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:10:41,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 171 [2022-11-23 04:10:41,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:10:41,522 INFO L130 PetriNetUnfolder]: 35/171 cut-off events. [2022-11-23 04:10:41,522 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 04:10:41,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 171 events. 35/171 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 713 event pairs, 35 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 251. Up to 85 conditions per place. [2022-11-23 04:10:41,526 INFO L137 encePairwiseOnDemand]: 166/171 looper letters, 14 selfloop transitions, 0 changer transitions 0/34 dead transitions. [2022-11-23 04:10:41,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 34 transitions, 99 flow [2022-11-23 04:10:41,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 04:10:41,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 04:10:41,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 211 transitions. [2022-11-23 04:10:41,540 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6169590643274854 [2022-11-23 04:10:41,541 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 211 transitions. [2022-11-23 04:10:41,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 211 transitions. [2022-11-23 04:10:41,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:10:41,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 211 transitions. [2022-11-23 04:10:41,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 105.5) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:41,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:41,553 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:41,555 INFO L175 Difference]: Start difference. First operand has 43 places, 39 transitions, 81 flow. Second operand 2 states and 211 transitions. [2022-11-23 04:10:41,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 34 transitions, 99 flow [2022-11-23 04:10:41,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 34 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 04:10:41,560 INFO L231 Difference]: Finished difference. Result has 38 places, 34 transitions, 70 flow [2022-11-23 04:10:41,562 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=70, PETRI_PLACES=38, PETRI_TRANSITIONS=34} [2022-11-23 04:10:41,566 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -5 predicate places. [2022-11-23 04:10:41,566 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 34 transitions, 70 flow [2022-11-23 04:10:41,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:41,567 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:10:41,567 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 04:10:41,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 04:10:41,568 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-23 04:10:41,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:10:41,568 INFO L85 PathProgramCache]: Analyzing trace with hash -589535831, now seen corresponding path program 1 times [2022-11-23 04:10:41,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:10:41,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39430085] [2022-11-23 04:10:41,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:10:41,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:10:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:10:42,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:10:42,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:10:42,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39430085] [2022-11-23 04:10:42,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39430085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:10:42,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:10:42,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 04:10:42,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834977661] [2022-11-23 04:10:42,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:10:42,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 04:10:42,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:10:42,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 04:10:42,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 04:10:42,376 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 171 [2022-11-23 04:10:42,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 34 transitions, 70 flow. Second operand has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:42,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:10:42,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 171 [2022-11-23 04:10:42,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:10:42,681 INFO L130 PetriNetUnfolder]: 206/525 cut-off events. [2022-11-23 04:10:42,681 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 04:10:42,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 974 conditions, 525 events. 206/525 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2617 event pairs, 87 based on Foata normal form. 0/504 useless extension candidates. Maximal degree in co-relation 971. Up to 313 conditions per place. [2022-11-23 04:10:42,689 INFO L137 encePairwiseOnDemand]: 156/171 looper letters, 57 selfloop transitions, 37 changer transitions 0/102 dead transitions. [2022-11-23 04:10:42,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 102 transitions, 394 flow [2022-11-23 04:10:42,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 04:10:42,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 04:10:42,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 557 transitions. [2022-11-23 04:10:42,697 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5428849902534113 [2022-11-23 04:10:42,697 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 557 transitions. [2022-11-23 04:10:42,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 557 transitions. [2022-11-23 04:10:42,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:10:42,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 557 transitions. [2022-11-23 04:10:42,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:42,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:42,709 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:42,709 INFO L175 Difference]: Start difference. First operand has 38 places, 34 transitions, 70 flow. Second operand 6 states and 557 transitions. [2022-11-23 04:10:42,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 102 transitions, 394 flow [2022-11-23 04:10:42,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 102 transitions, 394 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 04:10:42,712 INFO L231 Difference]: Finished difference. Result has 47 places, 72 transitions, 303 flow [2022-11-23 04:10:42,713 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=303, PETRI_PLACES=47, PETRI_TRANSITIONS=72} [2022-11-23 04:10:42,713 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 4 predicate places. [2022-11-23 04:10:42,714 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 72 transitions, 303 flow [2022-11-23 04:10:42,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:42,714 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:10:42,715 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 04:10:42,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 04:10:42,715 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-23 04:10:42,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:10:42,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1158809839, now seen corresponding path program 1 times [2022-11-23 04:10:42,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:10:42,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440194970] [2022-11-23 04:10:42,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:10:42,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:10:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:10:43,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:10:43,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:10:43,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440194970] [2022-11-23 04:10:43,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440194970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:10:43,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:10:43,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 04:10:43,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868877115] [2022-11-23 04:10:43,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:10:43,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 04:10:43,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:10:43,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 04:10:43,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 04:10:43,268 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 171 [2022-11-23 04:10:43,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 72 transitions, 303 flow. Second operand has 6 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:43,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:10:43,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 171 [2022-11-23 04:10:43,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:10:43,508 INFO L130 PetriNetUnfolder]: 274/765 cut-off events. [2022-11-23 04:10:43,509 INFO L131 PetriNetUnfolder]: For 228/244 co-relation queries the response was YES. [2022-11-23 04:10:43,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1941 conditions, 765 events. 274/765 cut-off events. For 228/244 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4738 event pairs, 39 based on Foata normal form. 20/776 useless extension candidates. Maximal degree in co-relation 1933. Up to 247 conditions per place. [2022-11-23 04:10:43,518 INFO L137 encePairwiseOnDemand]: 160/171 looper letters, 80 selfloop transitions, 32 changer transitions 0/140 dead transitions. [2022-11-23 04:10:43,518 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 140 transitions, 751 flow [2022-11-23 04:10:43,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 04:10:43,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 04:10:43,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 585 transitions. [2022-11-23 04:10:43,521 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5701754385964912 [2022-11-23 04:10:43,521 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 585 transitions. [2022-11-23 04:10:43,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 585 transitions. [2022-11-23 04:10:43,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:10:43,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 585 transitions. [2022-11-23 04:10:43,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:43,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:43,526 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:43,527 INFO L175 Difference]: Start difference. First operand has 47 places, 72 transitions, 303 flow. Second operand 6 states and 585 transitions. [2022-11-23 04:10:43,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 140 transitions, 751 flow [2022-11-23 04:10:43,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 140 transitions, 751 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 04:10:43,539 INFO L231 Difference]: Finished difference. Result has 56 places, 98 transitions, 561 flow [2022-11-23 04:10:43,540 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=561, PETRI_PLACES=56, PETRI_TRANSITIONS=98} [2022-11-23 04:10:43,541 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 13 predicate places. [2022-11-23 04:10:43,541 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 98 transitions, 561 flow [2022-11-23 04:10:43,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:43,542 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:10:43,542 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 04:10:43,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 04:10:43,543 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-23 04:10:43,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:10:43,543 INFO L85 PathProgramCache]: Analyzing trace with hash -245996357, now seen corresponding path program 1 times [2022-11-23 04:10:43,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:10:43,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95557857] [2022-11-23 04:10:43,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:10:43,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:10:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:10:43,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:10:43,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:10:43,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95557857] [2022-11-23 04:10:43,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95557857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:10:43,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:10:43,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 04:10:43,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991972229] [2022-11-23 04:10:43,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:10:43,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 04:10:43,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:10:43,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 04:10:43,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 04:10:43,638 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 171 [2022-11-23 04:10:43,638 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 98 transitions, 561 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:43,638 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:10:43,639 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 171 [2022-11-23 04:10:43,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:10:43,691 INFO L130 PetriNetUnfolder]: 47/193 cut-off events. [2022-11-23 04:10:43,691 INFO L131 PetriNetUnfolder]: For 108/114 co-relation queries the response was YES. [2022-11-23 04:10:43,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 193 events. 47/193 cut-off events. For 108/114 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 753 event pairs, 10 based on Foata normal form. 12/202 useless extension candidates. Maximal degree in co-relation 493. Up to 64 conditions per place. [2022-11-23 04:10:43,694 INFO L137 encePairwiseOnDemand]: 167/171 looper letters, 15 selfloop transitions, 4 changer transitions 0/56 dead transitions. [2022-11-23 04:10:43,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 56 transitions, 285 flow [2022-11-23 04:10:43,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 04:10:43,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 04:10:43,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2022-11-23 04:10:43,700 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5692007797270955 [2022-11-23 04:10:43,700 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2022-11-23 04:10:43,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2022-11-23 04:10:43,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:10:43,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2022-11-23 04:10:43,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:43,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:43,709 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:43,709 INFO L175 Difference]: Start difference. First operand has 56 places, 98 transitions, 561 flow. Second operand 3 states and 292 transitions. [2022-11-23 04:10:43,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 56 transitions, 285 flow [2022-11-23 04:10:43,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 56 transitions, 245 flow, removed 13 selfloop flow, removed 7 redundant places. [2022-11-23 04:10:43,714 INFO L231 Difference]: Finished difference. Result has 50 places, 54 transitions, 211 flow [2022-11-23 04:10:43,714 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=50, PETRI_TRANSITIONS=54} [2022-11-23 04:10:43,716 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 7 predicate places. [2022-11-23 04:10:43,717 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 54 transitions, 211 flow [2022-11-23 04:10:43,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:43,717 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:10:43,717 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 04:10:43,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 04:10:43,718 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-23 04:10:43,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:10:43,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1167528543, now seen corresponding path program 1 times [2022-11-23 04:10:43,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:10:43,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064859793] [2022-11-23 04:10:43,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:10:43,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:10:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:10:43,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:10:43,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:10:43,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064859793] [2022-11-23 04:10:43,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064859793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:10:43,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:10:43,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 04:10:43,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936494204] [2022-11-23 04:10:43,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:10:43,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 04:10:43,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:10:43,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 04:10:43,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 04:10:44,153 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 171 [2022-11-23 04:10:44,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 54 transitions, 211 flow. Second operand has 6 states, 6 states have (on average 84.0) internal successors, (504), 6 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:44,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:10:44,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 171 [2022-11-23 04:10:44,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:10:44,334 INFO L130 PetriNetUnfolder]: 111/314 cut-off events. [2022-11-23 04:10:44,335 INFO L131 PetriNetUnfolder]: For 81/81 co-relation queries the response was YES. [2022-11-23 04:10:44,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 314 events. 111/314 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1272 event pairs, 39 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 792. Up to 213 conditions per place. [2022-11-23 04:10:44,337 INFO L137 encePairwiseOnDemand]: 161/171 looper letters, 44 selfloop transitions, 21 changer transitions 4/82 dead transitions. [2022-11-23 04:10:44,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 82 transitions, 437 flow [2022-11-23 04:10:44,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 04:10:44,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 04:10:44,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 544 transitions. [2022-11-23 04:10:44,339 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.530214424951267 [2022-11-23 04:10:44,339 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 544 transitions. [2022-11-23 04:10:44,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 544 transitions. [2022-11-23 04:10:44,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:10:44,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 544 transitions. [2022-11-23 04:10:44,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.66666666666667) internal successors, (544), 6 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:44,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:44,344 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:44,344 INFO L175 Difference]: Start difference. First operand has 50 places, 54 transitions, 211 flow. Second operand 6 states and 544 transitions. [2022-11-23 04:10:44,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 82 transitions, 437 flow [2022-11-23 04:10:44,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 82 transitions, 433 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 04:10:44,347 INFO L231 Difference]: Finished difference. Result has 58 places, 74 transitions, 363 flow [2022-11-23 04:10:44,348 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=363, PETRI_PLACES=58, PETRI_TRANSITIONS=74} [2022-11-23 04:10:44,348 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 15 predicate places. [2022-11-23 04:10:44,349 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 74 transitions, 363 flow [2022-11-23 04:10:44,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.0) internal successors, (504), 6 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:44,349 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:10:44,349 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 04:10:44,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 04:10:44,350 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-23 04:10:44,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:10:44,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1970845494, now seen corresponding path program 1 times [2022-11-23 04:10:44,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:10:44,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108067584] [2022-11-23 04:10:44,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:10:44,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:10:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:10:44,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:10:44,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:10:44,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108067584] [2022-11-23 04:10:44,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108067584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:10:44,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:10:44,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 04:10:44,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410783792] [2022-11-23 04:10:44,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:10:44,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 04:10:44,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:10:44,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 04:10:44,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 04:10:44,704 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 171 [2022-11-23 04:10:44,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 74 transitions, 363 flow. Second operand has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:44,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:10:44,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 171 [2022-11-23 04:10:44,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:10:44,955 INFO L130 PetriNetUnfolder]: 176/454 cut-off events. [2022-11-23 04:10:44,955 INFO L131 PetriNetUnfolder]: For 202/204 co-relation queries the response was YES. [2022-11-23 04:10:44,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1467 conditions, 454 events. 176/454 cut-off events. For 202/204 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2088 event pairs, 25 based on Foata normal form. 0/434 useless extension candidates. Maximal degree in co-relation 1452. Up to 301 conditions per place. [2022-11-23 04:10:44,958 INFO L137 encePairwiseOnDemand]: 157/171 looper letters, 73 selfloop transitions, 45 changer transitions 17/142 dead transitions. [2022-11-23 04:10:44,959 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 142 transitions, 915 flow [2022-11-23 04:10:44,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 04:10:44,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 04:10:44,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 561 transitions. [2022-11-23 04:10:44,961 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5467836257309941 [2022-11-23 04:10:44,961 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 561 transitions. [2022-11-23 04:10:44,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 561 transitions. [2022-11-23 04:10:44,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:10:44,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 561 transitions. [2022-11-23 04:10:44,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:44,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:44,966 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:44,966 INFO L175 Difference]: Start difference. First operand has 58 places, 74 transitions, 363 flow. Second operand 6 states and 561 transitions. [2022-11-23 04:10:44,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 142 transitions, 915 flow [2022-11-23 04:10:44,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 142 transitions, 883 flow, removed 16 selfloop flow, removed 0 redundant places. [2022-11-23 04:10:44,972 INFO L231 Difference]: Finished difference. Result has 68 places, 109 transitions, 706 flow [2022-11-23 04:10:44,972 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=706, PETRI_PLACES=68, PETRI_TRANSITIONS=109} [2022-11-23 04:10:44,973 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 25 predicate places. [2022-11-23 04:10:44,973 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 109 transitions, 706 flow [2022-11-23 04:10:44,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:44,974 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:10:44,974 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 04:10:44,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 04:10:44,974 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-23 04:10:44,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:10:44,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1741683110, now seen corresponding path program 1 times [2022-11-23 04:10:44,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:10:44,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694044869] [2022-11-23 04:10:44,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:10:44,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:10:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:10:45,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:10:45,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:10:45,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694044869] [2022-11-23 04:10:45,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694044869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:10:45,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:10:45,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 04:10:45,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928501835] [2022-11-23 04:10:45,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:10:45,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 04:10:45,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:10:45,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 04:10:45,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-23 04:10:46,156 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 171 [2022-11-23 04:10:46,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 109 transitions, 706 flow. Second operand has 8 states, 8 states have (on average 76.25) internal successors, (610), 8 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:46,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:10:46,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 171 [2022-11-23 04:10:46,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:10:46,444 INFO L130 PetriNetUnfolder]: 159/411 cut-off events. [2022-11-23 04:10:46,444 INFO L131 PetriNetUnfolder]: For 560/564 co-relation queries the response was YES. [2022-11-23 04:10:46,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1659 conditions, 411 events. 159/411 cut-off events. For 560/564 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1816 event pairs, 35 based on Foata normal form. 2/413 useless extension candidates. Maximal degree in co-relation 1639. Up to 276 conditions per place. [2022-11-23 04:10:46,449 INFO L137 encePairwiseOnDemand]: 161/171 looper letters, 62 selfloop transitions, 35 changer transitions 4/127 dead transitions. [2022-11-23 04:10:46,449 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 127 transitions, 1020 flow [2022-11-23 04:10:46,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 04:10:46,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 04:10:46,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 573 transitions. [2022-11-23 04:10:46,452 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47869674185463656 [2022-11-23 04:10:46,452 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 573 transitions. [2022-11-23 04:10:46,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 573 transitions. [2022-11-23 04:10:46,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:10:46,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 573 transitions. [2022-11-23 04:10:46,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.85714285714286) internal successors, (573), 7 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:46,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:46,457 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:46,457 INFO L175 Difference]: Start difference. First operand has 68 places, 109 transitions, 706 flow. Second operand 7 states and 573 transitions. [2022-11-23 04:10:46,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 127 transitions, 1020 flow [2022-11-23 04:10:46,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 127 transitions, 964 flow, removed 25 selfloop flow, removed 1 redundant places. [2022-11-23 04:10:46,467 INFO L231 Difference]: Finished difference. Result has 76 places, 119 transitions, 843 flow [2022-11-23 04:10:46,467 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=843, PETRI_PLACES=76, PETRI_TRANSITIONS=119} [2022-11-23 04:10:46,468 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 33 predicate places. [2022-11-23 04:10:46,468 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 119 transitions, 843 flow [2022-11-23 04:10:46,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.25) internal successors, (610), 8 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:46,469 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:10:46,469 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 04:10:46,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 04:10:46,470 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-23 04:10:46,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:10:46,471 INFO L85 PathProgramCache]: Analyzing trace with hash -370668677, now seen corresponding path program 1 times [2022-11-23 04:10:46,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:10:46,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409115723] [2022-11-23 04:10:46,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:10:46,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:10:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:10:47,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:10:47,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:10:47,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409115723] [2022-11-23 04:10:47,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409115723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:10:47,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:10:47,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 04:10:47,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006798646] [2022-11-23 04:10:47,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:10:47,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 04:10:47,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:10:47,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 04:10:47,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-23 04:10:47,351 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 171 [2022-11-23 04:10:47,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 119 transitions, 843 flow. Second operand has 8 states, 8 states have (on average 78.75) internal successors, (630), 8 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:47,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:10:47,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 171 [2022-11-23 04:10:47,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:10:47,703 INFO L130 PetriNetUnfolder]: 168/417 cut-off events. [2022-11-23 04:10:47,704 INFO L131 PetriNetUnfolder]: For 544/547 co-relation queries the response was YES. [2022-11-23 04:10:47,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1824 conditions, 417 events. 168/417 cut-off events. For 544/547 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1810 event pairs, 23 based on Foata normal form. 2/419 useless extension candidates. Maximal degree in co-relation 1801. Up to 264 conditions per place. [2022-11-23 04:10:47,708 INFO L137 encePairwiseOnDemand]: 157/171 looper letters, 79 selfloop transitions, 58 changer transitions 10/154 dead transitions. [2022-11-23 04:10:47,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 154 transitions, 1309 flow [2022-11-23 04:10:47,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 04:10:47,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 04:10:47,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 626 transitions. [2022-11-23 04:10:47,711 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5229741019214703 [2022-11-23 04:10:47,711 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 626 transitions. [2022-11-23 04:10:47,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 626 transitions. [2022-11-23 04:10:47,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:10:47,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 626 transitions. [2022-11-23 04:10:47,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.42857142857143) internal successors, (626), 7 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:47,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:47,716 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:47,716 INFO L175 Difference]: Start difference. First operand has 76 places, 119 transitions, 843 flow. Second operand 7 states and 626 transitions. [2022-11-23 04:10:47,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 154 transitions, 1309 flow [2022-11-23 04:10:47,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 154 transitions, 1293 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-11-23 04:10:47,733 INFO L231 Difference]: Finished difference. Result has 84 places, 128 transitions, 1124 flow [2022-11-23 04:10:47,734 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1124, PETRI_PLACES=84, PETRI_TRANSITIONS=128} [2022-11-23 04:10:47,737 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 41 predicate places. [2022-11-23 04:10:47,737 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 128 transitions, 1124 flow [2022-11-23 04:10:47,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 78.75) internal successors, (630), 8 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:47,739 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:10:47,739 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] [2022-11-23 04:10:47,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 04:10:47,739 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-23 04:10:47,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:10:47,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1394175894, now seen corresponding path program 1 times [2022-11-23 04:10:47,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:10:47,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227333604] [2022-11-23 04:10:47,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:10:47,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:10:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:10:48,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:10:48,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:10:48,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227333604] [2022-11-23 04:10:48,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227333604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:10:48,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:10:48,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 04:10:48,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940946618] [2022-11-23 04:10:48,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:10:48,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 04:10:48,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:10:48,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 04:10:48,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-23 04:10:48,812 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 171 [2022-11-23 04:10:48,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 128 transitions, 1124 flow. Second operand has 8 states, 8 states have (on average 78.875) internal successors, (631), 8 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:48,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:10:48,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 171 [2022-11-23 04:10:48,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:10:49,147 INFO L130 PetriNetUnfolder]: 166/413 cut-off events. [2022-11-23 04:10:49,148 INFO L131 PetriNetUnfolder]: For 920/925 co-relation queries the response was YES. [2022-11-23 04:10:49,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2059 conditions, 413 events. 166/413 cut-off events. For 920/925 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1789 event pairs, 22 based on Foata normal form. 2/415 useless extension candidates. Maximal degree in co-relation 2033. Up to 241 conditions per place. [2022-11-23 04:10:49,152 INFO L137 encePairwiseOnDemand]: 158/171 looper letters, 85 selfloop transitions, 61 changer transitions 10/163 dead transitions. [2022-11-23 04:10:49,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 163 transitions, 1623 flow [2022-11-23 04:10:49,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 04:10:49,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 04:10:49,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 626 transitions. [2022-11-23 04:10:49,156 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5229741019214703 [2022-11-23 04:10:49,156 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 626 transitions. [2022-11-23 04:10:49,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 626 transitions. [2022-11-23 04:10:49,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:10:49,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 626 transitions. [2022-11-23 04:10:49,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.42857142857143) internal successors, (626), 7 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:49,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:49,162 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:49,162 INFO L175 Difference]: Start difference. First operand has 84 places, 128 transitions, 1124 flow. Second operand 7 states and 626 transitions. [2022-11-23 04:10:49,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 163 transitions, 1623 flow [2022-11-23 04:10:49,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 163 transitions, 1604 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-11-23 04:10:49,179 INFO L231 Difference]: Finished difference. Result has 93 places, 137 transitions, 1427 flow [2022-11-23 04:10:49,180 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=1109, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1427, PETRI_PLACES=93, PETRI_TRANSITIONS=137} [2022-11-23 04:10:49,181 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 50 predicate places. [2022-11-23 04:10:49,181 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 137 transitions, 1427 flow [2022-11-23 04:10:49,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 78.875) internal successors, (631), 8 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:49,185 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:10:49,185 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] [2022-11-23 04:10:49,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 04:10:49,186 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-23 04:10:49,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:10:49,187 INFO L85 PathProgramCache]: Analyzing trace with hash -524707212, now seen corresponding path program 1 times [2022-11-23 04:10:49,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:10:49,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846084118] [2022-11-23 04:10:49,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:10:49,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:10:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:10:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:10:49,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:10:49,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846084118] [2022-11-23 04:10:49,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846084118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:10:49,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:10:49,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 04:10:49,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944032302] [2022-11-23 04:10:49,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:10:49,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 04:10:49,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:10:49,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 04:10:49,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-23 04:10:49,783 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 171 [2022-11-23 04:10:49,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 137 transitions, 1427 flow. Second operand has 8 states, 8 states have (on average 76.375) internal successors, (611), 8 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:49,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:10:49,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 171 [2022-11-23 04:10:49,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:10:50,162 INFO L130 PetriNetUnfolder]: 164/419 cut-off events. [2022-11-23 04:10:50,162 INFO L131 PetriNetUnfolder]: For 1803/1808 co-relation queries the response was YES. [2022-11-23 04:10:50,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2304 conditions, 419 events. 164/419 cut-off events. For 1803/1808 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1845 event pairs, 33 based on Foata normal form. 1/420 useless extension candidates. Maximal degree in co-relation 2274. Up to 289 conditions per place. [2022-11-23 04:10:50,167 INFO L137 encePairwiseOnDemand]: 160/171 looper letters, 83 selfloop transitions, 44 changer transitions 4/157 dead transitions. [2022-11-23 04:10:50,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 157 transitions, 1855 flow [2022-11-23 04:10:50,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 04:10:50,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 04:10:50,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 577 transitions. [2022-11-23 04:10:50,170 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48203842940685043 [2022-11-23 04:10:50,170 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 577 transitions. [2022-11-23 04:10:50,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 577 transitions. [2022-11-23 04:10:50,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:10:50,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 577 transitions. [2022-11-23 04:10:50,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 82.42857142857143) internal successors, (577), 7 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:50,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:50,175 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:50,175 INFO L175 Difference]: Start difference. First operand has 93 places, 137 transitions, 1427 flow. Second operand 7 states and 577 transitions. [2022-11-23 04:10:50,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 157 transitions, 1855 flow [2022-11-23 04:10:50,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 157 transitions, 1828 flow, removed 13 selfloop flow, removed 1 redundant places. [2022-11-23 04:10:50,198 INFO L231 Difference]: Finished difference. Result has 101 places, 146 transitions, 1625 flow [2022-11-23 04:10:50,199 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=1410, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1625, PETRI_PLACES=101, PETRI_TRANSITIONS=146} [2022-11-23 04:10:50,200 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 58 predicate places. [2022-11-23 04:10:50,200 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 146 transitions, 1625 flow [2022-11-23 04:10:50,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.375) internal successors, (611), 8 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:50,201 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:10:50,201 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] [2022-11-23 04:10:50,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 04:10:50,201 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-23 04:10:50,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:10:50,202 INFO L85 PathProgramCache]: Analyzing trace with hash -494201352, now seen corresponding path program 2 times [2022-11-23 04:10:50,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:10:50,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703434842] [2022-11-23 04:10:50,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:10:50,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:10:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:10:50,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:10:50,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:10:50,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703434842] [2022-11-23 04:10:50,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703434842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:10:50,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:10:50,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 04:10:50,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114417328] [2022-11-23 04:10:50,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:10:50,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 04:10:50,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:10:50,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 04:10:50,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-23 04:10:51,135 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 171 [2022-11-23 04:10:51,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 146 transitions, 1625 flow. Second operand has 8 states, 8 states have (on average 76.375) internal successors, (611), 8 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:51,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:10:51,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 171 [2022-11-23 04:10:51,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:10:51,336 INFO L130 PetriNetUnfolder]: 162/415 cut-off events. [2022-11-23 04:10:51,336 INFO L131 PetriNetUnfolder]: For 1852/1858 co-relation queries the response was YES. [2022-11-23 04:10:51,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2384 conditions, 415 events. 162/415 cut-off events. For 1852/1858 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1822 event pairs, 31 based on Foata normal form. 2/417 useless extension candidates. Maximal degree in co-relation 2351. Up to 264 conditions per place. [2022-11-23 04:10:51,341 INFO L137 encePairwiseOnDemand]: 161/171 looper letters, 76 selfloop transitions, 59 changer transitions 4/165 dead transitions. [2022-11-23 04:10:51,341 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 165 transitions, 2076 flow [2022-11-23 04:10:51,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 04:10:51,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 04:10:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 575 transitions. [2022-11-23 04:10:51,344 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4803675856307435 [2022-11-23 04:10:51,344 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 575 transitions. [2022-11-23 04:10:51,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 575 transitions. [2022-11-23 04:10:51,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:10:51,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 575 transitions. [2022-11-23 04:10:51,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:51,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:51,348 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:51,348 INFO L175 Difference]: Start difference. First operand has 101 places, 146 transitions, 1625 flow. Second operand 7 states and 575 transitions. [2022-11-23 04:10:51,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 165 transitions, 2076 flow [2022-11-23 04:10:51,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 165 transitions, 2023 flow, removed 9 selfloop flow, removed 3 redundant places. [2022-11-23 04:10:51,380 INFO L231 Difference]: Finished difference. Result has 106 places, 156 transitions, 1856 flow [2022-11-23 04:10:51,380 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=1580, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1856, PETRI_PLACES=106, PETRI_TRANSITIONS=156} [2022-11-23 04:10:51,381 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 63 predicate places. [2022-11-23 04:10:51,381 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 156 transitions, 1856 flow [2022-11-23 04:10:51,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.375) internal successors, (611), 8 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:51,381 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:10:51,381 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] [2022-11-23 04:10:51,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 04:10:51,382 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-23 04:10:51,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:10:51,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1842397528, now seen corresponding path program 3 times [2022-11-23 04:10:51,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:10:51,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255354622] [2022-11-23 04:10:51,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:10:51,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:10:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:10:51,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:10:51,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:10:51,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255354622] [2022-11-23 04:10:51,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255354622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:10:51,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:10:51,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 04:10:51,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527069358] [2022-11-23 04:10:51,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:10:51,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 04:10:51,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:10:51,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 04:10:51,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-23 04:10:52,225 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 171 [2022-11-23 04:10:52,226 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 156 transitions, 1856 flow. Second operand has 8 states, 8 states have (on average 76.375) internal successors, (611), 8 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:52,226 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:10:52,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 171 [2022-11-23 04:10:52,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:10:52,408 INFO L130 PetriNetUnfolder]: 157/403 cut-off events. [2022-11-23 04:10:52,408 INFO L131 PetriNetUnfolder]: For 1910/1914 co-relation queries the response was YES. [2022-11-23 04:10:52,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2424 conditions, 403 events. 157/403 cut-off events. For 1910/1914 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1744 event pairs, 30 based on Foata normal form. 7/410 useless extension candidates. Maximal degree in co-relation 2391. Up to 198 conditions per place. [2022-11-23 04:10:52,413 INFO L137 encePairwiseOnDemand]: 164/171 looper letters, 89 selfloop transitions, 49 changer transitions 8/172 dead transitions. [2022-11-23 04:10:52,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 172 transitions, 2284 flow [2022-11-23 04:10:52,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 04:10:52,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 04:10:52,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 568 transitions. [2022-11-23 04:10:52,416 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47451963241436923 [2022-11-23 04:10:52,416 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 568 transitions. [2022-11-23 04:10:52,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 568 transitions. [2022-11-23 04:10:52,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:10:52,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 568 transitions. [2022-11-23 04:10:52,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.14285714285714) internal successors, (568), 7 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:52,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:52,421 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:52,421 INFO L175 Difference]: Start difference. First operand has 106 places, 156 transitions, 1856 flow. Second operand 7 states and 568 transitions. [2022-11-23 04:10:52,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 172 transitions, 2284 flow [2022-11-23 04:10:52,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 172 transitions, 2239 flow, removed 9 selfloop flow, removed 3 redundant places. [2022-11-23 04:10:52,444 INFO L231 Difference]: Finished difference. Result has 108 places, 153 transitions, 1882 flow [2022-11-23 04:10:52,445 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=1803, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1882, PETRI_PLACES=108, PETRI_TRANSITIONS=153} [2022-11-23 04:10:52,446 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 65 predicate places. [2022-11-23 04:10:52,446 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 153 transitions, 1882 flow [2022-11-23 04:10:52,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.375) internal successors, (611), 8 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:52,447 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:10:52,447 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] [2022-11-23 04:10:52,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 04:10:52,447 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-23 04:10:52,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:10:52,448 INFO L85 PathProgramCache]: Analyzing trace with hash 269782778, now seen corresponding path program 1 times [2022-11-23 04:10:52,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:10:52,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310481898] [2022-11-23 04:10:52,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:10:52,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:10:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:10:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:10:53,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:10:53,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310481898] [2022-11-23 04:10:53,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310481898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:10:53,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:10:53,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 04:10:53,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378741661] [2022-11-23 04:10:53,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:10:53,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 04:10:53,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:10:53,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 04:10:53,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-23 04:10:53,558 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 171 [2022-11-23 04:10:53,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 153 transitions, 1882 flow. Second operand has 8 states, 8 states have (on average 79.0) internal successors, (632), 8 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:53,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:10:53,560 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 171 [2022-11-23 04:10:53,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:10:53,903 INFO L130 PetriNetUnfolder]: 168/412 cut-off events. [2022-11-23 04:10:53,903 INFO L131 PetriNetUnfolder]: For 1679/1681 co-relation queries the response was YES. [2022-11-23 04:10:53,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2528 conditions, 412 events. 168/412 cut-off events. For 1679/1681 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1755 event pairs, 21 based on Foata normal form. 2/414 useless extension candidates. Maximal degree in co-relation 2497. Up to 222 conditions per place. [2022-11-23 04:10:53,908 INFO L137 encePairwiseOnDemand]: 159/171 looper letters, 96 selfloop transitions, 71 changer transitions 11/184 dead transitions. [2022-11-23 04:10:53,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 184 transitions, 2435 flow [2022-11-23 04:10:53,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 04:10:53,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 04:10:53,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 626 transitions. [2022-11-23 04:10:53,911 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5229741019214703 [2022-11-23 04:10:53,911 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 626 transitions. [2022-11-23 04:10:53,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 626 transitions. [2022-11-23 04:10:53,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:10:53,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 626 transitions. [2022-11-23 04:10:53,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.42857142857143) internal successors, (626), 7 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:53,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:53,920 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:53,921 INFO L175 Difference]: Start difference. First operand has 108 places, 153 transitions, 1882 flow. Second operand 7 states and 626 transitions. [2022-11-23 04:10:53,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 184 transitions, 2435 flow [2022-11-23 04:10:53,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 184 transitions, 2215 flow, removed 7 selfloop flow, removed 8 redundant places. [2022-11-23 04:10:53,944 INFO L231 Difference]: Finished difference. Result has 108 places, 159 transitions, 1955 flow [2022-11-23 04:10:53,944 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=1680, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1955, PETRI_PLACES=108, PETRI_TRANSITIONS=159} [2022-11-23 04:10:53,945 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 65 predicate places. [2022-11-23 04:10:53,945 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 159 transitions, 1955 flow [2022-11-23 04:10:53,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 79.0) internal successors, (632), 8 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:53,945 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:10:53,946 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] [2022-11-23 04:10:53,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 04:10:53,946 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-23 04:10:53,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:10:53,947 INFO L85 PathProgramCache]: Analyzing trace with hash -226665419, now seen corresponding path program 1 times [2022-11-23 04:10:53,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:10:53,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158855174] [2022-11-23 04:10:53,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:10:53,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:10:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:10:54,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 04:10:54,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:10:54,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158855174] [2022-11-23 04:10:54,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158855174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:10:54,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:10:54,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 04:10:54,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457607217] [2022-11-23 04:10:54,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:10:54,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 04:10:54,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:10:54,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 04:10:54,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-23 04:10:55,274 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 171 [2022-11-23 04:10:55,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 159 transitions, 1955 flow. Second operand has 8 states, 8 states have (on average 79.125) internal successors, (633), 8 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:55,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 04:10:55,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 171 [2022-11-23 04:10:55,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 04:10:55,686 INFO L130 PetriNetUnfolder]: 163/402 cut-off events. [2022-11-23 04:10:55,686 INFO L131 PetriNetUnfolder]: For 1761/1763 co-relation queries the response was YES. [2022-11-23 04:10:55,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2521 conditions, 402 events. 163/402 cut-off events. For 1761/1763 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1698 event pairs, 19 based on Foata normal form. 4/406 useless extension candidates. Maximal degree in co-relation 2490. Up to 166 conditions per place. [2022-11-23 04:10:55,691 INFO L137 encePairwiseOnDemand]: 160/171 looper letters, 105 selfloop transitions, 72 changer transitions 10/193 dead transitions. [2022-11-23 04:10:55,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 193 transitions, 2512 flow [2022-11-23 04:10:55,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 04:10:55,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 04:10:55,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 626 transitions. [2022-11-23 04:10:55,694 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5229741019214703 [2022-11-23 04:10:55,694 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 626 transitions. [2022-11-23 04:10:55,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 626 transitions. [2022-11-23 04:10:55,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 04:10:55,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 626 transitions. [2022-11-23 04:10:55,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.42857142857143) internal successors, (626), 7 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:55,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:55,699 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:55,699 INFO L175 Difference]: Start difference. First operand has 108 places, 159 transitions, 1955 flow. Second operand 7 states and 626 transitions. [2022-11-23 04:10:55,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 193 transitions, 2512 flow [2022-11-23 04:10:55,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 193 transitions, 2466 flow, removed 15 selfloop flow, removed 2 redundant places. [2022-11-23 04:10:55,724 INFO L231 Difference]: Finished difference. Result has 116 places, 166 transitions, 2234 flow [2022-11-23 04:10:55,724 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=1912, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2234, PETRI_PLACES=116, PETRI_TRANSITIONS=166} [2022-11-23 04:10:55,725 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 73 predicate places. [2022-11-23 04:10:55,725 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 166 transitions, 2234 flow [2022-11-23 04:10:55,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 79.125) internal successors, (633), 8 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:10:55,726 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 04:10:55,726 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] [2022-11-23 04:10:55,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 04:10:55,726 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-23 04:10:55,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:10:55,727 INFO L85 PathProgramCache]: Analyzing trace with hash -113712637, now seen corresponding path program 1 times [2022-11-23 04:10:55,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:10:55,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290890476] [2022-11-23 04:10:55,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:10:55,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:10:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 04:10:55,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 04:10:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 04:10:55,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 04:10:55,787 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 04:10:55,788 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2022-11-23 04:10:55,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-23 04:10:55,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-23 04:10:55,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-23 04:10:55,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-23 04:10:55,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2022-11-23 04:10:55,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-23 04:10:55,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-23 04:10:55,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-11-23 04:10:55,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-23 04:10:55,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-23 04:10:55,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-23 04:10:55,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-23 04:10:55,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-23 04:10:55,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 04:10:55,806 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 04:10:55,815 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 04:10:55,815 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 04:10:55,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:10:55 BasicIcfg [2022-11-23 04:10:55,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 04:10:55,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 04:10:55,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 04:10:55,876 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 04:10:55,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:10:37" (3/4) ... [2022-11-23 04:10:55,879 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 04:10:55,879 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 04:10:55,880 INFO L158 Benchmark]: Toolchain (without parser) took 19810.84ms. Allocated memory was 136.3MB in the beginning and 343.9MB in the end (delta: 207.6MB). Free memory was 97.2MB in the beginning and 238.1MB in the end (delta: -140.8MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2022-11-23 04:10:55,880 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 04:10:55,880 INFO L158 Benchmark]: CACSL2BoogieTranslator took 846.00ms. Allocated memory is still 136.3MB. Free memory was 97.2MB in the beginning and 59.8MB in the end (delta: 37.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-23 04:10:55,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.13ms. Allocated memory is still 136.3MB. Free memory was 59.8MB in the beginning and 57.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 04:10:55,881 INFO L158 Benchmark]: Boogie Preprocessor took 75.40ms. Allocated memory is still 136.3MB. Free memory was 57.1MB in the beginning and 107.0MB in the end (delta: -49.8MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-11-23 04:10:55,882 INFO L158 Benchmark]: RCFGBuilder took 676.67ms. Allocated memory is still 136.3MB. Free memory was 107.0MB in the beginning and 91.5MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 04:10:55,882 INFO L158 Benchmark]: TraceAbstraction took 18151.76ms. Allocated memory was 136.3MB in the beginning and 343.9MB in the end (delta: 207.6MB). Free memory was 90.9MB in the beginning and 239.1MB in the end (delta: -148.2MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2022-11-23 04:10:55,882 INFO L158 Benchmark]: Witness Printer took 4.00ms. Allocated memory is still 343.9MB. Free memory was 239.1MB in the beginning and 238.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 04:10:55,884 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 846.00ms. Allocated memory is still 136.3MB. Free memory was 97.2MB in the beginning and 59.8MB in the end (delta: 37.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.13ms. Allocated memory is still 136.3MB. Free memory was 59.8MB in the beginning and 57.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.40ms. Allocated memory is still 136.3MB. Free memory was 57.1MB in the beginning and 107.0MB in the end (delta: -49.8MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * RCFGBuilder took 676.67ms. Allocated memory is still 136.3MB. Free memory was 107.0MB in the beginning and 91.5MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 18151.76ms. Allocated memory was 136.3MB in the beginning and 343.9MB in the end (delta: 207.6MB). Free memory was 90.9MB in the beginning and 239.1MB in the end (delta: -148.2MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. * Witness Printer took 4.00ms. Allocated memory is still 343.9MB. Free memory was 239.1MB in the beginning and 238.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 100 PlacesBefore, 43 PlacesAfterwards, 96 TransitionsBefore, 39 TransitionsAfterwards, 1920 CoEnabledTransitionPairs, 8 FixpointIterations, 34 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 74 TotalNumberOfCompositions, 11528 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3437, independent: 2904, independent conditional: 0, independent unconditional: 2904, dependent: 533, dependent conditional: 0, dependent unconditional: 533, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1410, independent: 1308, independent conditional: 0, independent unconditional: 1308, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1410, independent: 1181, independent conditional: 0, independent unconditional: 1181, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 229, independent: 127, independent conditional: 0, independent unconditional: 127, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 457, independent: 193, independent conditional: 0, independent unconditional: 193, dependent: 264, dependent conditional: 0, dependent unconditional: 264, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3437, independent: 1596, independent conditional: 0, independent unconditional: 1596, dependent: 431, dependent conditional: 0, dependent unconditional: 431, unknown: 1410, unknown conditional: 0, unknown unconditional: 1410] , Statistics on independence cache: Total cache size (in pairs): 261, Positive cache size: 211, Positive conditional cache size: 0, Positive unconditional cache size: 211, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1245]: Data race detected Data race detected The following path leads to a data race: [L1227] 0 data *d; [L1228] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1237] 0 pthread_t id; [L1238] 0 data *z; [L1239] 0 d = malloc(sizeof(data)) [L1240] 0 z = d [L1241] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [#in~arg={0:0}, d={-2:0}, id={9:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, z={-2:0}] [L1243] EXPR 0 d->x VAL [#in~arg={0:0}, d={-2:0}, d->x=28, id={9:0}, m={1:0}, z={-2:0}] [L1243] 0 printf("%d\n",d->x) [L1231] EXPR 1 d->x [L1231] 1 d->x = 3 VAL [#in~arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1245] EXPR 0 z->y VAL [#in~arg={0:0}, arg={0:0}, d={-2:0}, id={9:0}, m={1:0}, z={-2:0}, z->y=25] [L1232] EXPR 1 d->y [L1232] 1 d->y = 8 VAL [#in~arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] 1 d->y = 8 VAL [#in~arg={0:0}, arg={0:0}, d={-2:0}, d->y = 8=26, m={1:0}] [L1245] 0 printf("%d\n",z->y) VAL [#in~arg={0:0}, arg={0:0}, d={-2:0}, d->y = 8=26, id={9:0}, m={1:0}, z={-2:0}, z->y=25] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: d->x = 3 [1231] * C: d = malloc(sizeof(data)) [1239] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d->y = 8 [1232] * C: d->x = 3 [1231] and C: printf("%d\n",z->y) [1245] - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 130 locations, 14 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: 17.9s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1566 SdHoareTripleChecker+Valid, 5.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1109 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 4.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 609 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4447 IncrementalHoareTripleChecker+Invalid, 5056 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 609 mSolverCounterUnsat, 5 mSDtfsCounter, 4447 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2234occurred in iteration=14, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 248 NumberOfCodeBlocks, 248 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 209 ConstructedInterpolants, 0 QuantifiedInterpolants, 5684 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-23 04:10:55,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ed7c327-ac75-4b54-b68c-6d722dfe15b0/bin/uautomizer-QkZJyEgLgS/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE