./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8 --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 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 --- 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-2329fc7 [2022-12-13 15:27:10,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:27:10,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:27:10,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:27:10,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:27:10,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:27:10,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:27:10,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:27:10,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:27:10,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:27:10,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:27:10,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:27:10,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:27:10,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:27:10,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:27:10,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:27:10,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:27:10,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:27:10,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:27:10,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:27:10,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:27:10,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:27:10,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:27:10,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:27:10,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:27:10,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:27:10,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:27:10,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:27:10,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:27:10,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:27:10,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:27:10,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:27:10,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:27:10,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:27:10,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:27:10,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:27:10,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:27:10,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:27:10,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:27:10,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:27:10,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:27:10,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 15:27:10,227 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:27:10,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:27:10,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:27:10,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:27:10,228 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:27:10,228 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:27:10,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:27:10,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:27:10,229 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:27:10,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:27:10,229 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:27:10,229 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:27:10,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:27:10,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:27:10,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:27:10,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:27:10,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:27:10,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:27:10,230 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 15:27:10,230 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:27:10,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:27:10,231 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:27:10,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:27:10,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:27:10,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:27:10,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:27:10,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:27:10,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:27:10,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:27:10,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:27:10,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:27:10,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:27:10,232 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:27:10,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:27:10,232 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:27:10,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:27:10,233 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:27:10,233 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_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 [2022-12-13 15:27:10,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:27:10,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:27:10,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:27:10,421 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:27:10,422 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:27:10,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2022-12-13 15:27:12,980 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:27:13,168 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:27:13,169 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2022-12-13 15:27:13,178 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8/data/4df8b8e4c/b37d78b87c964bcb9dea38ec20bd4e3c/FLAG4752b60a8 [2022-12-13 15:27:13,189 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8/data/4df8b8e4c/b37d78b87c964bcb9dea38ec20bd4e3c [2022-12-13 15:27:13,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:27:13,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:27:13,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:27:13,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:27:13,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:27:13,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:27:13" (1/1) ... [2022-12-13 15:27:13,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ea831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:13, skipping insertion in model container [2022-12-13 15:27:13,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:27:13" (1/1) ... [2022-12-13 15:27:13,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:27:13,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:27:13,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:27:13,601 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:27:13,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:27:13,675 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:27:13,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:13 WrapperNode [2022-12-13 15:27:13,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:27:13,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:27:13,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:27:13,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:27:13,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:13" (1/1) ... [2022-12-13 15:27:13,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:13" (1/1) ... [2022-12-13 15:27:13,715 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 71 [2022-12-13 15:27:13,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:27:13,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:27:13,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:27:13,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:27:13,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:13" (1/1) ... [2022-12-13 15:27:13,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:13" (1/1) ... [2022-12-13 15:27:13,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:13" (1/1) ... [2022-12-13 15:27:13,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:13" (1/1) ... [2022-12-13 15:27:13,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:13" (1/1) ... [2022-12-13 15:27:13,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:13" (1/1) ... [2022-12-13 15:27:13,736 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:13" (1/1) ... [2022-12-13 15:27:13,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:13" (1/1) ... [2022-12-13 15:27:13,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:27:13,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:27:13,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:27:13,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:27:13,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:13" (1/1) ... [2022-12-13 15:27:13,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:27:13,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:27:13,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:27:13,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:27:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:27:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:27:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:27:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 15:27:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:27:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 15:27:13,800 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 15:27:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:27:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:27:13,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:27:13,801 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 15:27:13,905 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:27:13,907 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:27:14,066 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:27:14,074 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:27:14,074 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:27:14,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:27:14 BoogieIcfgContainer [2022-12-13 15:27:14,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:27:14,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:27:14,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:27:14,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:27:14,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:27:13" (1/3) ... [2022-12-13 15:27:14,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a45a5eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:27:14, skipping insertion in model container [2022-12-13 15:27:14,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:13" (2/3) ... [2022-12-13 15:27:14,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a45a5eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:27:14, skipping insertion in model container [2022-12-13 15:27:14,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:27:14" (3/3) ... [2022-12-13 15:27:14,084 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2022-12-13 15:27:14,090 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 15:27:14,103 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:27:14,104 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 15:27:14,104 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:27:14,142 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 15:27:14,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 92 transitions, 189 flow [2022-12-13 15:27:14,201 INFO L130 PetriNetUnfolder]: 1/94 cut-off events. [2022-12-13 15:27:14,202 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:27:14,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 94 events. 1/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-12-13 15:27:14,205 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 92 transitions, 189 flow [2022-12-13 15:27:14,209 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 89 transitions, 181 flow [2022-12-13 15:27:14,212 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:27:14,219 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 89 transitions, 181 flow [2022-12-13 15:27:14,221 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 89 transitions, 181 flow [2022-12-13 15:27:14,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 89 transitions, 181 flow [2022-12-13 15:27:14,246 INFO L130 PetriNetUnfolder]: 1/89 cut-off events. [2022-12-13 15:27:14,246 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:27:14,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 89 events. 1/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2022-12-13 15:27:14,247 INFO L119 LiptonReduction]: Number of co-enabled transitions 600 [2022-12-13 15:27:17,527 INFO L134 LiptonReduction]: Checked pairs total: 2736 [2022-12-13 15:27:17,528 INFO L136 LiptonReduction]: Total number of compositions: 75 [2022-12-13 15:27:17,538 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:27:17,542 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;@2ab4b8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:27:17,542 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 15:27:17,545 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2022-12-13 15:27:17,546 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:27:17,546 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:27:17,546 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:17,546 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-12-13 15:27:17,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:17,550 INFO L85 PathProgramCache]: Analyzing trace with hash 576491098, now seen corresponding path program 1 times [2022-12-13 15:27:17,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:17,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097382555] [2022-12-13 15:27:17,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:17,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:17,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:17,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:27:17,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097382555] [2022-12-13 15:27:17,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097382555] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:27:17,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:27:17,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:27:17,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671763237] [2022-12-13 15:27:17,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:27:17,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:27:18,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:27:18,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:27:18,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:27:18,125 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 167 [2022-12-13 15:27:18,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:18,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:27:18,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 167 [2022-12-13 15:27:18,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:27:18,240 INFO L130 PetriNetUnfolder]: 72/186 cut-off events. [2022-12-13 15:27:18,240 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:27:18,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 186 events. 72/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 745 event pairs, 19 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 348. Up to 117 conditions per place. [2022-12-13 15:27:18,242 INFO L137 encePairwiseOnDemand]: 156/167 looper letters, 20 selfloop transitions, 22 changer transitions 4/49 dead transitions. [2022-12-13 15:27:18,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 49 transitions, 193 flow [2022-12-13 15:27:18,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:27:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:27:18,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 515 transitions. [2022-12-13 15:27:18,253 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5139720558882236 [2022-12-13 15:27:18,253 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 515 transitions. [2022-12-13 15:27:18,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 515 transitions. [2022-12-13 15:27:18,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:27:18,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 515 transitions. [2022-12-13 15:27:18,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:18,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 167.0) internal successors, (1169), 7 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:18,266 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 167.0) internal successors, (1169), 7 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:18,267 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 515 transitions. [2022-12-13 15:27:18,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 49 transitions, 193 flow [2022-12-13 15:27:18,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 49 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:27:18,271 INFO L231 Difference]: Finished difference. Result has 33 places, 41 transitions, 192 flow [2022-12-13 15:27:18,272 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=33, PETRI_TRANSITIONS=41} [2022-12-13 15:27:18,275 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 9 predicate places. [2022-12-13 15:27:18,275 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 41 transitions, 192 flow [2022-12-13 15:27:18,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:18,275 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:27:18,275 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:18,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:27:18,276 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-12-13 15:27:18,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:18,276 INFO L85 PathProgramCache]: Analyzing trace with hash 941660044, now seen corresponding path program 1 times [2022-12-13 15:27:18,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:18,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780523402] [2022-12-13 15:27:18,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:18,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:18,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:18,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:27:18,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780523402] [2022-12-13 15:27:18,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780523402] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:27:18,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:27:18,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:27:18,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976484410] [2022-12-13 15:27:18,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:27:18,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:27:18,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:27:18,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:27:18,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:27:18,491 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 167 [2022-12-13 15:27:18,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 41 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 6 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:18,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:27:18,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 167 [2022-12-13 15:27:18,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:27:18,586 INFO L130 PetriNetUnfolder]: 113/268 cut-off events. [2022-12-13 15:27:18,587 INFO L131 PetriNetUnfolder]: For 102/108 co-relation queries the response was YES. [2022-12-13 15:27:18,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 268 events. 113/268 cut-off events. For 102/108 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1137 event pairs, 14 based on Foata normal form. 2/258 useless extension candidates. Maximal degree in co-relation 782. Up to 166 conditions per place. [2022-12-13 15:27:18,589 INFO L137 encePairwiseOnDemand]: 156/167 looper letters, 40 selfloop transitions, 29 changer transitions 11/84 dead transitions. [2022-12-13 15:27:18,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 84 transitions, 532 flow [2022-12-13 15:27:18,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:27:18,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:27:18,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2022-12-13 15:27:18,591 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5059880239520959 [2022-12-13 15:27:18,591 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 507 transitions. [2022-12-13 15:27:18,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 507 transitions. [2022-12-13 15:27:18,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:27:18,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 507 transitions. [2022-12-13 15:27:18,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 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) [2022-12-13 15:27:18,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 167.0) internal successors, (1169), 7 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:18,594 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 167.0) internal successors, (1169), 7 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:18,594 INFO L175 Difference]: Start difference. First operand has 33 places, 41 transitions, 192 flow. Second operand 6 states and 507 transitions. [2022-12-13 15:27:18,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 84 transitions, 532 flow [2022-12-13 15:27:18,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 84 transitions, 532 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 15:27:18,598 INFO L231 Difference]: Finished difference. Result has 43 places, 65 transitions, 446 flow [2022-12-13 15:27:18,598 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=43, PETRI_TRANSITIONS=65} [2022-12-13 15:27:18,598 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 19 predicate places. [2022-12-13 15:27:18,598 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 65 transitions, 446 flow [2022-12-13 15:27:18,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 6 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:18,599 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:27:18,599 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:18,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:27:18,599 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-12-13 15:27:18,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:18,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1356483057, now seen corresponding path program 1 times [2022-12-13 15:27:18,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:18,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913983076] [2022-12-13 15:27:18,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:18,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:19,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:19,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:27:19,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913983076] [2022-12-13 15:27:19,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913983076] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:27:19,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:27:19,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:27:19,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262097007] [2022-12-13 15:27:19,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:27:19,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:27:19,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:27:19,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:27:19,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:27:19,361 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 167 [2022-12-13 15:27:19,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 65 transitions, 446 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:19,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:27:19,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 167 [2022-12-13 15:27:19,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:27:19,578 INFO L130 PetriNetUnfolder]: 148/370 cut-off events. [2022-12-13 15:27:19,579 INFO L131 PetriNetUnfolder]: For 426/429 co-relation queries the response was YES. [2022-12-13 15:27:19,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1474 conditions, 370 events. 148/370 cut-off events. For 426/429 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1860 event pairs, 8 based on Foata normal form. 10/380 useless extension candidates. Maximal degree in co-relation 1456. Up to 136 conditions per place. [2022-12-13 15:27:19,584 INFO L137 encePairwiseOnDemand]: 156/167 looper letters, 84 selfloop transitions, 34 changer transitions 13/135 dead transitions. [2022-12-13 15:27:19,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 135 transitions, 1186 flow [2022-12-13 15:27:19,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 15:27:19,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 15:27:19,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 727 transitions. [2022-12-13 15:27:19,586 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4353293413173653 [2022-12-13 15:27:19,586 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 727 transitions. [2022-12-13 15:27:19,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 727 transitions. [2022-12-13 15:27:19,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:27:19,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 727 transitions. [2022-12-13 15:27:19,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.7) internal successors, (727), 10 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:19,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 167.0) internal successors, (1837), 11 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:19,590 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 167.0) internal successors, (1837), 11 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:19,590 INFO L175 Difference]: Start difference. First operand has 43 places, 65 transitions, 446 flow. Second operand 10 states and 727 transitions. [2022-12-13 15:27:19,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 135 transitions, 1186 flow [2022-12-13 15:27:19,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 135 transitions, 1150 flow, removed 18 selfloop flow, removed 0 redundant places. [2022-12-13 15:27:19,597 INFO L231 Difference]: Finished difference. Result has 58 places, 87 transitions, 722 flow [2022-12-13 15:27:19,597 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=722, PETRI_PLACES=58, PETRI_TRANSITIONS=87} [2022-12-13 15:27:19,597 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 34 predicate places. [2022-12-13 15:27:19,597 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 87 transitions, 722 flow [2022-12-13 15:27:19,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:19,598 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:27:19,598 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:19,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:27:19,598 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-12-13 15:27:19,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:19,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1326097433, now seen corresponding path program 2 times [2022-12-13 15:27:19,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:19,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451853881] [2022-12-13 15:27:19,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:19,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:20,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:20,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:27:20,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451853881] [2022-12-13 15:27:20,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451853881] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:27:20,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:27:20,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:27:20,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603394152] [2022-12-13 15:27:20,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:27:20,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:27:20,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:27:20,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:27:20,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:27:20,340 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 167 [2022-12-13 15:27:20,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 87 transitions, 722 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:20,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:27:20,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 167 [2022-12-13 15:27:20,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:27:20,573 INFO L130 PetriNetUnfolder]: 154/383 cut-off events. [2022-12-13 15:27:20,573 INFO L131 PetriNetUnfolder]: For 999/1002 co-relation queries the response was YES. [2022-12-13 15:27:20,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1853 conditions, 383 events. 154/383 cut-off events. For 999/1002 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1937 event pairs, 15 based on Foata normal form. 6/388 useless extension candidates. Maximal degree in co-relation 1827. Up to 128 conditions per place. [2022-12-13 15:27:20,576 INFO L137 encePairwiseOnDemand]: 152/167 looper letters, 62 selfloop transitions, 61 changer transitions 31/158 dead transitions. [2022-12-13 15:27:20,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 158 transitions, 1572 flow [2022-12-13 15:27:20,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 15:27:20,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 15:27:20,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 809 transitions. [2022-12-13 15:27:20,578 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4403919433859554 [2022-12-13 15:27:20,578 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 809 transitions. [2022-12-13 15:27:20,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 809 transitions. [2022-12-13 15:27:20,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:27:20,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 809 transitions. [2022-12-13 15:27:20,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.54545454545455) internal successors, (809), 11 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:20,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 167.0) internal successors, (2004), 12 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:20,581 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 167.0) internal successors, (2004), 12 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:20,581 INFO L175 Difference]: Start difference. First operand has 58 places, 87 transitions, 722 flow. Second operand 11 states and 809 transitions. [2022-12-13 15:27:20,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 158 transitions, 1572 flow [2022-12-13 15:27:20,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 158 transitions, 1571 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:27:20,588 INFO L231 Difference]: Finished difference. Result has 72 places, 96 transitions, 1012 flow [2022-12-13 15:27:20,589 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1012, PETRI_PLACES=72, PETRI_TRANSITIONS=96} [2022-12-13 15:27:20,589 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 48 predicate places. [2022-12-13 15:27:20,589 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 96 transitions, 1012 flow [2022-12-13 15:27:20,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:20,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:27:20,590 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:20,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:27:20,590 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-12-13 15:27:20,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:20,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1073730678, now seen corresponding path program 1 times [2022-12-13 15:27:20,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:20,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059294523] [2022-12-13 15:27:20,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:20,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:21,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:21,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:27:21,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059294523] [2022-12-13 15:27:21,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059294523] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:27:21,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:27:21,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:27:21,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753169532] [2022-12-13 15:27:21,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:27:21,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:27:21,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:27:21,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:27:21,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:27:21,239 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 167 [2022-12-13 15:27:21,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 96 transitions, 1012 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:21,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:27:21,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 167 [2022-12-13 15:27:21,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:27:21,590 INFO L130 PetriNetUnfolder]: 210/526 cut-off events. [2022-12-13 15:27:21,590 INFO L131 PetriNetUnfolder]: For 2342/2356 co-relation queries the response was YES. [2022-12-13 15:27:21,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3068 conditions, 526 events. 210/526 cut-off events. For 2342/2356 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3012 event pairs, 10 based on Foata normal form. 11/536 useless extension candidates. Maximal degree in co-relation 3036. Up to 182 conditions per place. [2022-12-13 15:27:21,593 INFO L137 encePairwiseOnDemand]: 152/167 looper letters, 126 selfloop transitions, 40 changer transitions 45/216 dead transitions. [2022-12-13 15:27:21,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 216 transitions, 2673 flow [2022-12-13 15:27:21,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 15:27:21,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 15:27:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 814 transitions. [2022-12-13 15:27:21,596 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4431137724550898 [2022-12-13 15:27:21,596 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 814 transitions. [2022-12-13 15:27:21,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 814 transitions. [2022-12-13 15:27:21,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:27:21,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 814 transitions. [2022-12-13 15:27:21,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:21,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 167.0) internal successors, (2004), 12 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:21,599 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 167.0) internal successors, (2004), 12 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:21,599 INFO L175 Difference]: Start difference. First operand has 72 places, 96 transitions, 1012 flow. Second operand 11 states and 814 transitions. [2022-12-13 15:27:21,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 216 transitions, 2673 flow [2022-12-13 15:27:21,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 216 transitions, 2624 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-12-13 15:27:21,611 INFO L231 Difference]: Finished difference. Result has 82 places, 118 transitions, 1377 flow [2022-12-13 15:27:21,611 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=989, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1377, PETRI_PLACES=82, PETRI_TRANSITIONS=118} [2022-12-13 15:27:21,612 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 58 predicate places. [2022-12-13 15:27:21,612 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 118 transitions, 1377 flow [2022-12-13 15:27:21,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:21,612 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:27:21,612 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:21,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:27:21,613 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-12-13 15:27:21,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:21,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1421712455, now seen corresponding path program 3 times [2022-12-13 15:27:21,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:21,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223222832] [2022-12-13 15:27:21,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:21,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:22,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:22,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:27:22,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223222832] [2022-12-13 15:27:22,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223222832] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:27:22,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:27:22,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:27:22,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570896595] [2022-12-13 15:27:22,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:27:22,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:27:22,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:27:22,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:27:22,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:27:22,383 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 167 [2022-12-13 15:27:22,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 118 transitions, 1377 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:22,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:27:22,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 167 [2022-12-13 15:27:22,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:27:22,634 INFO L130 PetriNetUnfolder]: 186/523 cut-off events. [2022-12-13 15:27:22,635 INFO L131 PetriNetUnfolder]: For 3149/3152 co-relation queries the response was YES. [2022-12-13 15:27:22,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3410 conditions, 523 events. 186/523 cut-off events. For 3149/3152 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3204 event pairs, 20 based on Foata normal form. 12/535 useless extension candidates. Maximal degree in co-relation 3372. Up to 195 conditions per place. [2022-12-13 15:27:22,638 INFO L137 encePairwiseOnDemand]: 153/167 looper letters, 125 selfloop transitions, 38 changer transitions 28/197 dead transitions. [2022-12-13 15:27:22,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 197 transitions, 2646 flow [2022-12-13 15:27:22,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 15:27:22,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 15:27:22,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 730 transitions. [2022-12-13 15:27:22,640 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.437125748502994 [2022-12-13 15:27:22,640 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 730 transitions. [2022-12-13 15:27:22,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 730 transitions. [2022-12-13 15:27:22,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:27:22,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 730 transitions. [2022-12-13 15:27:22,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 73.0) internal successors, (730), 10 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:22,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 167.0) internal successors, (1837), 11 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:22,643 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 167.0) internal successors, (1837), 11 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:22,643 INFO L175 Difference]: Start difference. First operand has 82 places, 118 transitions, 1377 flow. Second operand 10 states and 730 transitions. [2022-12-13 15:27:22,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 197 transitions, 2646 flow [2022-12-13 15:27:22,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 197 transitions, 2608 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 15:27:22,662 INFO L231 Difference]: Finished difference. Result has 93 places, 132 transitions, 1730 flow [2022-12-13 15:27:22,662 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=1357, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1730, PETRI_PLACES=93, PETRI_TRANSITIONS=132} [2022-12-13 15:27:22,663 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 69 predicate places. [2022-12-13 15:27:22,663 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 132 transitions, 1730 flow [2022-12-13 15:27:22,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:22,664 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:27:22,664 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:22,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:27:22,664 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-12-13 15:27:22,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:22,664 INFO L85 PathProgramCache]: Analyzing trace with hash 36335114, now seen corresponding path program 2 times [2022-12-13 15:27:22,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:22,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906900996] [2022-12-13 15:27:22,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:22,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:22,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:22,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:27:22,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906900996] [2022-12-13 15:27:22,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906900996] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:27:22,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:27:22,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:27:22,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642012862] [2022-12-13 15:27:22,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:27:22,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:27:22,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:27:22,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:27:22,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:27:23,079 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 167 [2022-12-13 15:27:23,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 132 transitions, 1730 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:23,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:27:23,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 167 [2022-12-13 15:27:23,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:27:23,254 INFO L130 PetriNetUnfolder]: 170/472 cut-off events. [2022-12-13 15:27:23,254 INFO L131 PetriNetUnfolder]: For 3765/3781 co-relation queries the response was YES. [2022-12-13 15:27:23,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3356 conditions, 472 events. 170/472 cut-off events. For 3765/3781 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2786 event pairs, 6 based on Foata normal form. 18/490 useless extension candidates. Maximal degree in co-relation 3312. Up to 187 conditions per place. [2022-12-13 15:27:23,256 INFO L137 encePairwiseOnDemand]: 157/167 looper letters, 73 selfloop transitions, 21 changer transitions 107/206 dead transitions. [2022-12-13 15:27:23,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 206 transitions, 3116 flow [2022-12-13 15:27:23,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 15:27:23,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 15:27:23,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 728 transitions. [2022-12-13 15:27:23,258 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4359281437125748 [2022-12-13 15:27:23,258 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 728 transitions. [2022-12-13 15:27:23,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 728 transitions. [2022-12-13 15:27:23,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:27:23,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 728 transitions. [2022-12-13 15:27:23,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.8) internal successors, (728), 10 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:23,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 167.0) internal successors, (1837), 11 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:23,262 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 167.0) internal successors, (1837), 11 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:23,262 INFO L175 Difference]: Start difference. First operand has 93 places, 132 transitions, 1730 flow. Second operand 10 states and 728 transitions. [2022-12-13 15:27:23,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 206 transitions, 3116 flow [2022-12-13 15:27:23,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 206 transitions, 2999 flow, removed 27 selfloop flow, removed 4 redundant places. [2022-12-13 15:27:23,281 INFO L231 Difference]: Finished difference. Result has 104 places, 92 transitions, 1187 flow [2022-12-13 15:27:23,281 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=1652, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1187, PETRI_PLACES=104, PETRI_TRANSITIONS=92} [2022-12-13 15:27:23,281 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 80 predicate places. [2022-12-13 15:27:23,282 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 92 transitions, 1187 flow [2022-12-13 15:27:23,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:23,282 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:27:23,282 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:23,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:27:23,282 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-12-13 15:27:23,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:23,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1729133634, now seen corresponding path program 3 times [2022-12-13 15:27:23,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:23,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009712078] [2022-12-13 15:27:23,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:23,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:23,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:23,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:27:23,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009712078] [2022-12-13 15:27:23,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009712078] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:27:23,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:27:23,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:27:23,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820277726] [2022-12-13 15:27:23,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:27:23,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:27:23,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:27:23,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:27:23,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:27:23,982 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 167 [2022-12-13 15:27:23,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 92 transitions, 1187 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:23,983 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:27:23,983 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 167 [2022-12-13 15:27:23,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:27:24,425 INFO L130 PetriNetUnfolder]: 78/247 cut-off events. [2022-12-13 15:27:24,425 INFO L131 PetriNetUnfolder]: For 2503/2517 co-relation queries the response was YES. [2022-12-13 15:27:24,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1865 conditions, 247 events. 78/247 cut-off events. For 2503/2517 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1224 event pairs, 5 based on Foata normal form. 5/252 useless extension candidates. Maximal degree in co-relation 1815. Up to 82 conditions per place. [2022-12-13 15:27:24,427 INFO L137 encePairwiseOnDemand]: 154/167 looper letters, 48 selfloop transitions, 42 changer transitions 41/136 dead transitions. [2022-12-13 15:27:24,427 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 136 transitions, 2035 flow [2022-12-13 15:27:24,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 15:27:24,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 15:27:24,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 800 transitions. [2022-12-13 15:27:24,430 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43549265106151336 [2022-12-13 15:27:24,430 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 800 transitions. [2022-12-13 15:27:24,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 800 transitions. [2022-12-13 15:27:24,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:27:24,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 800 transitions. [2022-12-13 15:27:24,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 72.72727272727273) internal successors, (800), 11 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:24,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 167.0) internal successors, (2004), 12 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:24,435 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 167.0) internal successors, (2004), 12 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:24,435 INFO L175 Difference]: Start difference. First operand has 104 places, 92 transitions, 1187 flow. Second operand 11 states and 800 transitions. [2022-12-13 15:27:24,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 136 transitions, 2035 flow [2022-12-13 15:27:24,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 136 transitions, 1778 flow, removed 78 selfloop flow, removed 14 redundant places. [2022-12-13 15:27:24,447 INFO L231 Difference]: Finished difference. Result has 100 places, 78 transitions, 979 flow [2022-12-13 15:27:24,447 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=1008, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=979, PETRI_PLACES=100, PETRI_TRANSITIONS=78} [2022-12-13 15:27:24,447 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 76 predicate places. [2022-12-13 15:27:24,447 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 78 transitions, 979 flow [2022-12-13 15:27:24,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:24,448 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:27:24,448 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:24,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 15:27:24,448 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-12-13 15:27:24,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:24,448 INFO L85 PathProgramCache]: Analyzing trace with hash 286537447, now seen corresponding path program 4 times [2022-12-13 15:27:24,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:24,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023183940] [2022-12-13 15:27:24,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:24,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:24,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:24,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:27:24,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023183940] [2022-12-13 15:27:24,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023183940] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:27:24,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:27:24,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:27:24,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627076473] [2022-12-13 15:27:24,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:27:24,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:27:24,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:27:24,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:27:24,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:27:24,971 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 167 [2022-12-13 15:27:24,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 78 transitions, 979 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:24,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:27:24,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 167 [2022-12-13 15:27:24,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:27:25,090 INFO L130 PetriNetUnfolder]: 63/207 cut-off events. [2022-12-13 15:27:25,090 INFO L131 PetriNetUnfolder]: For 1924/1925 co-relation queries the response was YES. [2022-12-13 15:27:25,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1513 conditions, 207 events. 63/207 cut-off events. For 1924/1925 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 979 event pairs, 10 based on Foata normal form. 11/218 useless extension candidates. Maximal degree in co-relation 1468. Up to 65 conditions per place. [2022-12-13 15:27:25,092 INFO L137 encePairwiseOnDemand]: 155/167 looper letters, 59 selfloop transitions, 32 changer transitions 11/107 dead transitions. [2022-12-13 15:27:25,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 107 transitions, 1577 flow [2022-12-13 15:27:25,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 15:27:25,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 15:27:25,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 719 transitions. [2022-12-13 15:27:25,094 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4305389221556886 [2022-12-13 15:27:25,094 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 719 transitions. [2022-12-13 15:27:25,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 719 transitions. [2022-12-13 15:27:25,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:27:25,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 719 transitions. [2022-12-13 15:27:25,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 71.9) internal successors, (719), 10 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:25,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 167.0) internal successors, (1837), 11 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:25,099 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 167.0) internal successors, (1837), 11 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:25,099 INFO L175 Difference]: Start difference. First operand has 100 places, 78 transitions, 979 flow. Second operand 10 states and 719 transitions. [2022-12-13 15:27:25,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 107 transitions, 1577 flow [2022-12-13 15:27:25,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 107 transitions, 1474 flow, removed 20 selfloop flow, removed 10 redundant places. [2022-12-13 15:27:25,111 INFO L231 Difference]: Finished difference. Result has 98 places, 81 transitions, 1051 flow [2022-12-13 15:27:25,111 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1051, PETRI_PLACES=98, PETRI_TRANSITIONS=81} [2022-12-13 15:27:25,112 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 74 predicate places. [2022-12-13 15:27:25,112 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 81 transitions, 1051 flow [2022-12-13 15:27:25,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:25,112 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:27:25,112 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:25,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 15:27:25,113 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-12-13 15:27:25,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:25,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1276048553, now seen corresponding path program 5 times [2022-12-13 15:27:25,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:25,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325088088] [2022-12-13 15:27:25,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:25,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:25,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:25,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:27:25,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325088088] [2022-12-13 15:27:25,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325088088] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:27:25,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:27:25,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:27:25,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909930731] [2022-12-13 15:27:25,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:27:25,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:27:25,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:27:25,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:27:25,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:27:25,745 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 167 [2022-12-13 15:27:25,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 81 transitions, 1051 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:25,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:27:25,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 167 [2022-12-13 15:27:25,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:27:25,852 INFO L130 PetriNetUnfolder]: 41/177 cut-off events. [2022-12-13 15:27:25,852 INFO L131 PetriNetUnfolder]: For 1870/1872 co-relation queries the response was YES. [2022-12-13 15:27:25,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1336 conditions, 177 events. 41/177 cut-off events. For 1870/1872 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 879 event pairs, 6 based on Foata normal form. 11/188 useless extension candidates. Maximal degree in co-relation 1292. Up to 59 conditions per place. [2022-12-13 15:27:25,854 INFO L137 encePairwiseOnDemand]: 154/167 looper letters, 22 selfloop transitions, 18 changer transitions 57/100 dead transitions. [2022-12-13 15:27:25,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 100 transitions, 1505 flow [2022-12-13 15:27:25,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 15:27:25,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 15:27:25,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 717 transitions. [2022-12-13 15:27:25,856 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4293413173652695 [2022-12-13 15:27:25,856 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 717 transitions. [2022-12-13 15:27:25,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 717 transitions. [2022-12-13 15:27:25,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:27:25,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 717 transitions. [2022-12-13 15:27:25,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 71.7) internal successors, (717), 10 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:25,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 167.0) internal successors, (1837), 11 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:25,861 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 167.0) internal successors, (1837), 11 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:25,861 INFO L175 Difference]: Start difference. First operand has 98 places, 81 transitions, 1051 flow. Second operand 10 states and 717 transitions. [2022-12-13 15:27:25,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 100 transitions, 1505 flow [2022-12-13 15:27:25,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 100 transitions, 1410 flow, removed 6 selfloop flow, removed 11 redundant places. [2022-12-13 15:27:25,872 INFO L231 Difference]: Finished difference. Result has 95 places, 41 transitions, 476 flow [2022-12-13 15:27:25,873 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=476, PETRI_PLACES=95, PETRI_TRANSITIONS=41} [2022-12-13 15:27:25,873 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 71 predicate places. [2022-12-13 15:27:25,873 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 41 transitions, 476 flow [2022-12-13 15:27:25,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:25,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:27:25,874 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:25,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 15:27:25,874 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-12-13 15:27:25,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:25,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1397422206, now seen corresponding path program 4 times [2022-12-13 15:27:25,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:25,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863458410] [2022-12-13 15:27:25,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:25,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:26,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:26,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:27:26,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863458410] [2022-12-13 15:27:26,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863458410] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:27:26,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:27:26,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:27:26,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353217377] [2022-12-13 15:27:26,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:27:26,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:27:26,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:27:26,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:27:26,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:27:26,553 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 167 [2022-12-13 15:27:26,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 41 transitions, 476 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:26,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:27:26,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 167 [2022-12-13 15:27:26,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:27:26,720 INFO L130 PetriNetUnfolder]: 43/128 cut-off events. [2022-12-13 15:27:26,721 INFO L131 PetriNetUnfolder]: For 996/997 co-relation queries the response was YES. [2022-12-13 15:27:26,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 128 events. 43/128 cut-off events. For 996/997 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 460 event pairs, 5 based on Foata normal form. 11/139 useless extension candidates. Maximal degree in co-relation 886. Up to 50 conditions per place. [2022-12-13 15:27:26,722 INFO L137 encePairwiseOnDemand]: 158/167 looper letters, 35 selfloop transitions, 16 changer transitions 18/72 dead transitions. [2022-12-13 15:27:26,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 72 transitions, 999 flow [2022-12-13 15:27:26,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:27:26,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 15:27:26,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 638 transitions. [2022-12-13 15:27:26,725 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4244843646041251 [2022-12-13 15:27:26,725 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 638 transitions. [2022-12-13 15:27:26,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 638 transitions. [2022-12-13 15:27:26,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:27:26,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 638 transitions. [2022-12-13 15:27:26,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 70.88888888888889) internal successors, (638), 9 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:26,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 167.0) internal successors, (1670), 10 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:26,729 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 167.0) internal successors, (1670), 10 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:26,729 INFO L175 Difference]: Start difference. First operand has 95 places, 41 transitions, 476 flow. Second operand 9 states and 638 transitions. [2022-12-13 15:27:26,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 72 transitions, 999 flow [2022-12-13 15:27:26,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 72 transitions, 701 flow, removed 24 selfloop flow, removed 31 redundant places. [2022-12-13 15:27:26,735 INFO L231 Difference]: Finished difference. Result has 63 places, 43 transitions, 420 flow [2022-12-13 15:27:26,735 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=420, PETRI_PLACES=63, PETRI_TRANSITIONS=43} [2022-12-13 15:27:26,736 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 39 predicate places. [2022-12-13 15:27:26,736 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 43 transitions, 420 flow [2022-12-13 15:27:26,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:26,736 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:27:26,736 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:26,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 15:27:26,736 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-12-13 15:27:26,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:26,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1657346934, now seen corresponding path program 5 times [2022-12-13 15:27:26,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:26,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847227879] [2022-12-13 15:27:26,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:26,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:27,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:27,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:27:27,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847227879] [2022-12-13 15:27:27,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847227879] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:27:27,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:27:27,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:27:27,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116717725] [2022-12-13 15:27:27,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:27:27,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:27:27,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:27:27,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:27:27,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:27:27,428 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 167 [2022-12-13 15:27:27,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 43 transitions, 420 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:27,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:27:27,430 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 167 [2022-12-13 15:27:27,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:27:27,756 INFO L130 PetriNetUnfolder]: 19/86 cut-off events. [2022-12-13 15:27:27,756 INFO L131 PetriNetUnfolder]: For 503/505 co-relation queries the response was YES. [2022-12-13 15:27:27,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 86 events. 19/86 cut-off events. For 503/505 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 295 event pairs, 0 based on Foata normal form. 11/97 useless extension candidates. Maximal degree in co-relation 495. Up to 27 conditions per place. [2022-12-13 15:27:27,757 INFO L137 encePairwiseOnDemand]: 157/167 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2022-12-13 15:27:27,757 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 62 transitions, 682 flow [2022-12-13 15:27:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 15:27:27,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 15:27:27,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 706 transitions. [2022-12-13 15:27:27,760 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4227544910179641 [2022-12-13 15:27:27,760 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 706 transitions. [2022-12-13 15:27:27,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 706 transitions. [2022-12-13 15:27:27,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:27:27,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 706 transitions. [2022-12-13 15:27:27,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 70.6) internal successors, (706), 10 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:27,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 167.0) internal successors, (1837), 11 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:27,762 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 167.0) internal successors, (1837), 11 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:27,762 INFO L175 Difference]: Start difference. First operand has 63 places, 43 transitions, 420 flow. Second operand 10 states and 706 transitions. [2022-12-13 15:27:27,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 62 transitions, 682 flow [2022-12-13 15:27:27,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 62 transitions, 634 flow, removed 1 selfloop flow, removed 10 redundant places. [2022-12-13 15:27:27,764 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2022-12-13 15:27:27,764 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2022-12-13 15:27:27,765 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 37 predicate places. [2022-12-13 15:27:27,765 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2022-12-13 15:27:27,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:27:27,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2022-12-13 15:27:27,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 15:27:27,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2022-12-13 15:27:27,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2022-12-13 15:27:27,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 15:27:27,768 INFO L445 BasicCegarLoop]: Path program histogram: [5, 5, 1, 1] [2022-12-13 15:27:27,771 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:27:27,771 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:27:27,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:27:27 BasicIcfg [2022-12-13 15:27:27,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:27:27,774 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:27:27,774 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:27:27,774 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:27:27,774 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:27:14" (3/4) ... [2022-12-13 15:27:27,776 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 15:27:27,780 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 15:27:27,783 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-13 15:27:27,783 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 15:27:27,785 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 15:27:27,806 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:27:27,807 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:27:27,807 INFO L158 Benchmark]: Toolchain (without parser) took 14615.34ms. Allocated memory was 121.6MB in the beginning and 176.2MB in the end (delta: 54.5MB). Free memory was 92.9MB in the beginning and 142.8MB in the end (delta: -49.8MB). Peak memory consumption was 109.7MB. Max. memory is 16.1GB. [2022-12-13 15:27:27,807 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:27:27,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.74ms. Allocated memory is still 121.6MB. Free memory was 92.6MB in the beginning and 65.4MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 15:27:27,808 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.15ms. Allocated memory is still 121.6MB. Free memory was 65.4MB in the beginning and 62.9MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 15:27:27,808 INFO L158 Benchmark]: Boogie Preprocessor took 24.07ms. Allocated memory is still 121.6MB. Free memory was 62.9MB in the beginning and 61.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:27:27,808 INFO L158 Benchmark]: RCFGBuilder took 335.81ms. Allocated memory is still 121.6MB. Free memory was 61.2MB in the beginning and 46.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 15:27:27,808 INFO L158 Benchmark]: TraceAbstraction took 13694.65ms. Allocated memory was 121.6MB in the beginning and 176.2MB in the end (delta: 54.5MB). Free memory was 46.1MB in the beginning and 41.6MB in the end (delta: 4.4MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. [2022-12-13 15:27:27,809 INFO L158 Benchmark]: Witness Printer took 33.01ms. Allocated memory is still 176.2MB. Free memory was 41.6MB in the beginning and 142.8MB in the end (delta: -101.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:27:27,810 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 482.74ms. Allocated memory is still 121.6MB. Free memory was 92.6MB in the beginning and 65.4MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.15ms. Allocated memory is still 121.6MB. Free memory was 65.4MB in the beginning and 62.9MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.07ms. Allocated memory is still 121.6MB. Free memory was 62.9MB in the beginning and 61.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 335.81ms. Allocated memory is still 121.6MB. Free memory was 61.2MB in the beginning and 46.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 13694.65ms. Allocated memory was 121.6MB in the beginning and 176.2MB in the end (delta: 54.5MB). Free memory was 46.1MB in the beginning and 41.6MB in the end (delta: 4.4MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. * Witness Printer took 33.01ms. Allocated memory is still 176.2MB. Free memory was 41.6MB in the beginning and 142.8MB in the end (delta: -101.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 92 PlacesBefore, 24 PlacesAfterwards, 89 TransitionsBefore, 20 TransitionsAfterwards, 600 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 2736 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 964, independent: 718, independent conditional: 0, independent unconditional: 718, dependent: 246, dependent conditional: 0, dependent unconditional: 246, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 292, independent: 260, independent conditional: 0, independent unconditional: 260, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 964, independent: 458, independent conditional: 0, independent unconditional: 458, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 292, unknown conditional: 0, unknown unconditional: 292] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1022]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 996]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 108 locations, 4 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: 13.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2094 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1650 mSDsluCounter, 183 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 131 mSDsCounter, 573 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4746 IncrementalHoareTripleChecker+Invalid, 5319 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 573 mSolverCounterUnsat, 52 mSDtfsCounter, 4746 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1730occurred in iteration=6, InterpolantAutomatonStates: 114, 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, 4.4s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 3354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 15:27:27,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_355067d1-3d0c-49cf-9931-41ec6c40f1a3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE