./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R --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 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd --- 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-38b53e6 [2022-11-25 17:20:44,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:20:44,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:20:45,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:20:45,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:20:45,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:20:45,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:20:45,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:20:45,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:20:45,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:20:45,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:20:45,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:20:45,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:20:45,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:20:45,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:20:45,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:20:45,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:20:45,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:20:45,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:20:45,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:20:45,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:20:45,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:20:45,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:20:45,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:20:45,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:20:45,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:20:45,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:20:45,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:20:45,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:20:45,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:20:45,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:20:45,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:20:45,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:20:45,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:20:45,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:20:45,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:20:45,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:20:45,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:20:45,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:20:45,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:20:45,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:20:45,112 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 17:20:45,152 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:20:45,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:20:45,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:20:45,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:20:45,154 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:20:45,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:20:45,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:20:45,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:20:45,155 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:20:45,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:20:45,156 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:20:45,156 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:20:45,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:20:45,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:20:45,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:20:45,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:20:45,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:20:45,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:20:45,158 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:20:45,158 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:20:45,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:20:45,158 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:20:45,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:20:45,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:20:45,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:20:45,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:20:45,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:20:45,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:20:45,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:20:45,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:20:45,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:20:45,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:20:45,161 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:20:45,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:20:45,161 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:20:45,161 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:20:45,161 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_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd [2022-11-25 17:20:45,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:20:45,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:20:45,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:20:45,522 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:20:45,522 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:20:45,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i [2022-11-25 17:20:48,622 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:20:48,927 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:20:48,928 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i [2022-11-25 17:20:48,940 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/data/cc77a1c29/0672abe666d141b7ab8583347319b014/FLAG471ab4b29 [2022-11-25 17:20:48,956 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/data/cc77a1c29/0672abe666d141b7ab8583347319b014 [2022-11-25 17:20:48,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:20:48,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:20:48,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:20:48,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:20:48,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:20:48,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:20:48" (1/1) ... [2022-11-25 17:20:48,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e88514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:48, skipping insertion in model container [2022-11-25 17:20:48,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:20:48" (1/1) ... [2022-11-25 17:20:48,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:20:49,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:20:49,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:20:49,342 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:20:49,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:20:49,465 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:20:49,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:49 WrapperNode [2022-11-25 17:20:49,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:20:49,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:20:49,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:20:49,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:20:49,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:49" (1/1) ... [2022-11-25 17:20:49,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:49" (1/1) ... [2022-11-25 17:20:49,540 INFO L138 Inliner]: procedures = 163, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2022-11-25 17:20:49,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:20:49,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:20:49,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:20:49,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:20:49,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:49" (1/1) ... [2022-11-25 17:20:49,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:49" (1/1) ... [2022-11-25 17:20:49,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:49" (1/1) ... [2022-11-25 17:20:49,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:49" (1/1) ... [2022-11-25 17:20:49,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:49" (1/1) ... [2022-11-25 17:20:49,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:49" (1/1) ... [2022-11-25 17:20:49,593 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:49" (1/1) ... [2022-11-25 17:20:49,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:49" (1/1) ... [2022-11-25 17:20:49,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:20:49,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:20:49,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:20:49,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:20:49,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:49" (1/1) ... [2022-11-25 17:20:49,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:20:49,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:20:49,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:20:49,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:20:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:20:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:20:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 17:20:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:20:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:20:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 17:20:49,696 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 17:20:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:20:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-25 17:20:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:20:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:20:49,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:20:49,699 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:20:49,864 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:20:49,887 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:20:50,117 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:20:50,123 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:20:50,124 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:20:50,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:20:50 BoogieIcfgContainer [2022-11-25 17:20:50,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:20:50,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:20:50,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:20:50,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:20:50,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:20:48" (1/3) ... [2022-11-25 17:20:50,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f52aacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:20:50, skipping insertion in model container [2022-11-25 17:20:50,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:49" (2/3) ... [2022-11-25 17:20:50,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f52aacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:20:50, skipping insertion in model container [2022-11-25 17:20:50,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:20:50" (3/3) ... [2022-11-25 17:20:50,140 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_42-trylock_2mutex.i [2022-11-25 17:20:50,149 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:20:50,160 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:20:50,161 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-25 17:20:50,161 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:20:50,241 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-25 17:20:50,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 100 transitions, 208 flow [2022-11-25 17:20:50,334 INFO L130 PetriNetUnfolder]: 2/99 cut-off events. [2022-11-25 17:20:50,334 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 17:20:50,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 99 events. 2/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 91 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2022-11-25 17:20:50,340 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 100 transitions, 208 flow [2022-11-25 17:20:50,344 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 91 transitions, 185 flow [2022-11-25 17:20:50,349 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:20:50,364 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 91 transitions, 185 flow [2022-11-25 17:20:50,367 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 91 transitions, 185 flow [2022-11-25 17:20:50,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 91 transitions, 185 flow [2022-11-25 17:20:50,396 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-11-25 17:20:50,396 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:20:50,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 91 events. 2/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2022-11-25 17:20:50,399 INFO L119 LiptonReduction]: Number of co-enabled transitions 1922 [2022-11-25 17:20:53,646 INFO L134 LiptonReduction]: Checked pairs total: 10681 [2022-11-25 17:20:53,646 INFO L136 LiptonReduction]: Total number of compositions: 73 [2022-11-25 17:20:53,665 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:20:53,680 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;@44ed2b89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:20:53,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-25 17:20:53,683 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-11-25 17:20:53,683 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:20:53,684 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:20:53,684 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 17:20:53,685 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-25 17:20:53,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:53,691 INFO L85 PathProgramCache]: Analyzing trace with hash 333565, now seen corresponding path program 1 times [2022-11-25 17:20:53,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:53,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190843870] [2022-11-25 17:20:53,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:53,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:53,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:53,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:53,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190843870] [2022-11-25 17:20:53,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190843870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:53,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:53,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:20:53,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588700379] [2022-11-25 17:20:53,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:53,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:20:53,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:53,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:20:53,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:20:53,980 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 173 [2022-11-25 17:20:53,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 36 transitions, 75 flow. Second operand has 2 states, 2 states have (on average 98.5) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:53,983 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:20:53,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 173 [2022-11-25 17:20:53,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:20:54,124 INFO L130 PetriNetUnfolder]: 73/213 cut-off events. [2022-11-25 17:20:54,124 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:20:54,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 213 events. 73/213 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 905 event pairs, 64 based on Foata normal form. 9/190 useless extension candidates. Maximal degree in co-relation 364. Up to 156 conditions per place. [2022-11-25 17:20:54,132 INFO L137 encePairwiseOnDemand]: 170/173 looper letters, 19 selfloop transitions, 0 changer transitions 0/33 dead transitions. [2022-11-25 17:20:54,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 107 flow [2022-11-25 17:20:54,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:20:54,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:20:54,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 216 transitions. [2022-11-25 17:20:54,151 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6242774566473989 [2022-11-25 17:20:54,152 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 216 transitions. [2022-11-25 17:20:54,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 216 transitions. [2022-11-25 17:20:54,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:20:54,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 216 transitions. [2022-11-25 17:20:54,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,181 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,183 INFO L175 Difference]: Start difference. First operand has 38 places, 36 transitions, 75 flow. Second operand 2 states and 216 transitions. [2022-11-25 17:20:54,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 107 flow [2022-11-25 17:20:54,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 33 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:20:54,188 INFO L231 Difference]: Finished difference. Result has 36 places, 33 transitions, 68 flow [2022-11-25 17:20:54,190 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=68, PETRI_PLACES=36, PETRI_TRANSITIONS=33} [2022-11-25 17:20:54,195 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2022-11-25 17:20:54,195 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 33 transitions, 68 flow [2022-11-25 17:20:54,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 98.5) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,195 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:20:54,196 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:20:54,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:20:54,196 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-25 17:20:54,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:54,199 INFO L85 PathProgramCache]: Analyzing trace with hash 320521954, now seen corresponding path program 1 times [2022-11-25 17:20:54,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:54,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891650910] [2022-11-25 17:20:54,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:54,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:54,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:54,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:54,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891650910] [2022-11-25 17:20:54,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891650910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:54,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:54,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:20:54,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525963195] [2022-11-25 17:20:54,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:54,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:20:54,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:54,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:20:54,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:20:54,338 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 173 [2022-11-25 17:20:54,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:20:54,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 173 [2022-11-25 17:20:54,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:20:54,460 INFO L130 PetriNetUnfolder]: 99/275 cut-off events. [2022-11-25 17:20:54,461 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:20:54,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 275 events. 99/275 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1200 event pairs, 58 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 488. Up to 158 conditions per place. [2022-11-25 17:20:54,469 INFO L137 encePairwiseOnDemand]: 168/173 looper letters, 30 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2022-11-25 17:20:54,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 45 transitions, 160 flow [2022-11-25 17:20:54,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:20:54,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:20:54,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2022-11-25 17:20:54,477 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5992292870905588 [2022-11-25 17:20:54,477 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 311 transitions. [2022-11-25 17:20:54,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 311 transitions. [2022-11-25 17:20:54,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:20:54,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 311 transitions. [2022-11-25 17:20:54,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,485 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,485 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 68 flow. Second operand 3 states and 311 transitions. [2022-11-25 17:20:54,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 45 transitions, 160 flow [2022-11-25 17:20:54,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 45 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:20:54,487 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 98 flow [2022-11-25 17:20:54,487 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2022-11-25 17:20:54,488 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 2 predicate places. [2022-11-25 17:20:54,488 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 98 flow [2022-11-25 17:20:54,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,489 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:20:54,489 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:20:54,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:20:54,490 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-25 17:20:54,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:54,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1346824773, now seen corresponding path program 1 times [2022-11-25 17:20:54,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:54,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405801943] [2022-11-25 17:20:54,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:54,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:54,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:54,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405801943] [2022-11-25 17:20:54,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405801943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:54,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:54,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:20:54,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212804975] [2022-11-25 17:20:54,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:54,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:20:54,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:54,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:20:54,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:20:54,629 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 173 [2022-11-25 17:20:54,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:20:54,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 173 [2022-11-25 17:20:54,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:20:54,745 INFO L130 PetriNetUnfolder]: 114/311 cut-off events. [2022-11-25 17:20:54,745 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2022-11-25 17:20:54,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 311 events. 114/311 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1408 event pairs, 46 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 617. Up to 136 conditions per place. [2022-11-25 17:20:54,768 INFO L137 encePairwiseOnDemand]: 168/173 looper letters, 38 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2022-11-25 17:20:54,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 54 transitions, 224 flow [2022-11-25 17:20:54,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:20:54,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:20:54,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2022-11-25 17:20:54,771 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6011560693641619 [2022-11-25 17:20:54,771 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 312 transitions. [2022-11-25 17:20:54,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 312 transitions. [2022-11-25 17:20:54,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:20:54,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 312 transitions. [2022-11-25 17:20:54,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,775 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,775 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 98 flow. Second operand 3 states and 312 transitions. [2022-11-25 17:20:54,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 54 transitions, 224 flow [2022-11-25 17:20:54,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 54 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:20:54,777 INFO L231 Difference]: Finished difference. Result has 42 places, 39 transitions, 120 flow [2022-11-25 17:20:54,778 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=42, PETRI_TRANSITIONS=39} [2022-11-25 17:20:54,779 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2022-11-25 17:20:54,779 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 39 transitions, 120 flow [2022-11-25 17:20:54,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,780 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:20:54,780 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:54,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:20:54,780 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-25 17:20:54,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:54,781 INFO L85 PathProgramCache]: Analyzing trace with hash -382970058, now seen corresponding path program 1 times [2022-11-25 17:20:54,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:54,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784396968] [2022-11-25 17:20:54,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:54,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:54,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:54,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:54,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784396968] [2022-11-25 17:20:54,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784396968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:54,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:54,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:20:54,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920057200] [2022-11-25 17:20:54,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:54,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:20:54,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:54,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:20:54,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:20:54,845 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 173 [2022-11-25 17:20:54,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:20:54,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 173 [2022-11-25 17:20:54,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:20:54,960 INFO L130 PetriNetUnfolder]: 100/297 cut-off events. [2022-11-25 17:20:54,960 INFO L131 PetriNetUnfolder]: For 67/69 co-relation queries the response was YES. [2022-11-25 17:20:54,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 297 events. 100/297 cut-off events. For 67/69 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1350 event pairs, 73 based on Foata normal form. 2/275 useless extension candidates. Maximal degree in co-relation 623. Up to 201 conditions per place. [2022-11-25 17:20:54,963 INFO L137 encePairwiseOnDemand]: 169/173 looper letters, 30 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2022-11-25 17:20:54,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 214 flow [2022-11-25 17:20:54,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:20:54,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:20:54,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2022-11-25 17:20:54,969 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.581888246628131 [2022-11-25 17:20:54,969 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2022-11-25 17:20:54,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2022-11-25 17:20:54,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:20:54,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2022-11-25 17:20:54,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,979 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,980 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 120 flow. Second operand 3 states and 302 transitions. [2022-11-25 17:20:54,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 214 flow [2022-11-25 17:20:54,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 49 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:20:54,986 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 136 flow [2022-11-25 17:20:54,986 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2022-11-25 17:20:54,988 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2022-11-25 17:20:54,988 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 136 flow [2022-11-25 17:20:54,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:54,989 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:20:54,989 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:54,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:20:54,990 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-25 17:20:54,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:54,991 INFO L85 PathProgramCache]: Analyzing trace with hash -327462058, now seen corresponding path program 1 times [2022-11-25 17:20:54,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:54,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072294415] [2022-11-25 17:20:54,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:54,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:55,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:55,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:55,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072294415] [2022-11-25 17:20:55,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072294415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:55,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:55,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:20:55,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483871245] [2022-11-25 17:20:55,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:55,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:20:55,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:55,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:20:55,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:20:55,088 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 173 [2022-11-25 17:20:55,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:20:55,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 173 [2022-11-25 17:20:55,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:20:55,195 INFO L130 PetriNetUnfolder]: 112/317 cut-off events. [2022-11-25 17:20:55,196 INFO L131 PetriNetUnfolder]: For 119/124 co-relation queries the response was YES. [2022-11-25 17:20:55,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 704 conditions, 317 events. 112/317 cut-off events. For 119/124 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1444 event pairs, 72 based on Foata normal form. 1/285 useless extension candidates. Maximal degree in co-relation 697. Up to 220 conditions per place. [2022-11-25 17:20:55,198 INFO L137 encePairwiseOnDemand]: 168/173 looper letters, 28 selfloop transitions, 7 changer transitions 2/52 dead transitions. [2022-11-25 17:20:55,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 52 transitions, 246 flow [2022-11-25 17:20:55,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:20:55,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:20:55,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 299 transitions. [2022-11-25 17:20:55,200 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5761078998073218 [2022-11-25 17:20:55,201 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 299 transitions. [2022-11-25 17:20:55,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 299 transitions. [2022-11-25 17:20:55,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:20:55,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 299 transitions. [2022-11-25 17:20:55,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,205 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 136 flow. Second operand 3 states and 299 transitions. [2022-11-25 17:20:55,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 52 transitions, 246 flow [2022-11-25 17:20:55,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 52 transitions, 238 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-25 17:20:55,212 INFO L231 Difference]: Finished difference. Result has 45 places, 45 transitions, 179 flow [2022-11-25 17:20:55,212 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=45, PETRI_TRANSITIONS=45} [2022-11-25 17:20:55,216 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2022-11-25 17:20:55,216 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 45 transitions, 179 flow [2022-11-25 17:20:55,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,217 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:20:55,217 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:55,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:20:55,218 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-25 17:20:55,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:55,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1567141943, now seen corresponding path program 1 times [2022-11-25 17:20:55,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:55,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552753205] [2022-11-25 17:20:55,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:55,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:55,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:55,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:55,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552753205] [2022-11-25 17:20:55,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552753205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:55,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:55,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:20:55,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537030076] [2022-11-25 17:20:55,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:55,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:20:55,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:55,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:20:55,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:20:55,400 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 173 [2022-11-25 17:20:55,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 45 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:20:55,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 173 [2022-11-25 17:20:55,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:20:55,491 INFO L130 PetriNetUnfolder]: 61/210 cut-off events. [2022-11-25 17:20:55,491 INFO L131 PetriNetUnfolder]: For 125/126 co-relation queries the response was YES. [2022-11-25 17:20:55,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 495 conditions, 210 events. 61/210 cut-off events. For 125/126 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 900 event pairs, 21 based on Foata normal form. 15/215 useless extension candidates. Maximal degree in co-relation 487. Up to 87 conditions per place. [2022-11-25 17:20:55,493 INFO L137 encePairwiseOnDemand]: 165/173 looper letters, 21 selfloop transitions, 8 changer transitions 9/49 dead transitions. [2022-11-25 17:20:55,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 234 flow [2022-11-25 17:20:55,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:20:55,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:20:55,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2022-11-25 17:20:55,495 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5857418111753372 [2022-11-25 17:20:55,495 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2022-11-25 17:20:55,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2022-11-25 17:20:55,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:20:55,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2022-11-25 17:20:55,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,499 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,500 INFO L175 Difference]: Start difference. First operand has 45 places, 45 transitions, 179 flow. Second operand 3 states and 304 transitions. [2022-11-25 17:20:55,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 234 flow [2022-11-25 17:20:55,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 49 transitions, 194 flow, removed 8 selfloop flow, removed 7 redundant places. [2022-11-25 17:20:55,502 INFO L231 Difference]: Finished difference. Result has 38 places, 35 transitions, 116 flow [2022-11-25 17:20:55,503 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=38, PETRI_TRANSITIONS=35} [2022-11-25 17:20:55,504 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2022-11-25 17:20:55,504 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 35 transitions, 116 flow [2022-11-25 17:20:55,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,504 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:20:55,505 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:55,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:20:55,505 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-25 17:20:55,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:55,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1184965878, now seen corresponding path program 1 times [2022-11-25 17:20:55,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:55,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84052930] [2022-11-25 17:20:55,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:55,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:55,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:55,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:55,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84052930] [2022-11-25 17:20:55,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84052930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:55,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:55,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:20:55,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996671643] [2022-11-25 17:20:55,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:55,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:20:55,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:55,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:20:55,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:20:55,560 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 173 [2022-11-25 17:20:55,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 35 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:20:55,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 173 [2022-11-25 17:20:55,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:20:55,642 INFO L130 PetriNetUnfolder]: 72/213 cut-off events. [2022-11-25 17:20:55,643 INFO L131 PetriNetUnfolder]: For 56/62 co-relation queries the response was YES. [2022-11-25 17:20:55,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 524 conditions, 213 events. 72/213 cut-off events. For 56/62 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 829 event pairs, 46 based on Foata normal form. 6/199 useless extension candidates. Maximal degree in co-relation 518. Up to 158 conditions per place. [2022-11-25 17:20:55,644 INFO L137 encePairwiseOnDemand]: 169/173 looper letters, 27 selfloop transitions, 3 changer transitions 7/45 dead transitions. [2022-11-25 17:20:55,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 45 transitions, 219 flow [2022-11-25 17:20:55,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:20:55,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:20:55,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2022-11-25 17:20:55,646 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5838150289017341 [2022-11-25 17:20:55,646 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2022-11-25 17:20:55,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2022-11-25 17:20:55,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:20:55,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2022-11-25 17:20:55,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,650 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,650 INFO L175 Difference]: Start difference. First operand has 38 places, 35 transitions, 116 flow. Second operand 3 states and 303 transitions. [2022-11-25 17:20:55,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 45 transitions, 219 flow [2022-11-25 17:20:55,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 45 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:20:55,652 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 113 flow [2022-11-25 17:20:55,653 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2022-11-25 17:20:55,653 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 2 predicate places. [2022-11-25 17:20:55,653 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 113 flow [2022-11-25 17:20:55,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,654 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:20:55,654 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:55,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:20:55,655 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-25 17:20:55,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:55,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1031326418, now seen corresponding path program 1 times [2022-11-25 17:20:55,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:55,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319553377] [2022-11-25 17:20:55,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:55,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:55,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:55,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:55,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319553377] [2022-11-25 17:20:55,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319553377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:55,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:55,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:20:55,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054972290] [2022-11-25 17:20:55,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:55,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:20:55,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:55,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:20:55,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:20:55,793 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 173 [2022-11-25 17:20:55,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:20:55,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 173 [2022-11-25 17:20:55,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:20:55,886 INFO L130 PetriNetUnfolder]: 47/199 cut-off events. [2022-11-25 17:20:55,887 INFO L131 PetriNetUnfolder]: For 62/63 co-relation queries the response was YES. [2022-11-25 17:20:55,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 199 events. 47/199 cut-off events. For 62/63 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 838 event pairs, 11 based on Foata normal form. 5/198 useless extension candidates. Maximal degree in co-relation 499. Up to 88 conditions per place. [2022-11-25 17:20:55,888 INFO L137 encePairwiseOnDemand]: 167/173 looper letters, 23 selfloop transitions, 5 changer transitions 6/44 dead transitions. [2022-11-25 17:20:55,888 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 44 transitions, 220 flow [2022-11-25 17:20:55,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:20:55,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:20:55,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2022-11-25 17:20:55,890 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5857418111753372 [2022-11-25 17:20:55,890 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2022-11-25 17:20:55,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2022-11-25 17:20:55,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:20:55,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2022-11-25 17:20:55,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,894 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,894 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 113 flow. Second operand 3 states and 304 transitions. [2022-11-25 17:20:55,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 44 transitions, 220 flow [2022-11-25 17:20:55,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 44 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:20:55,898 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 133 flow [2022-11-25 17:20:55,898 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2022-11-25 17:20:55,901 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2022-11-25 17:20:55,901 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 133 flow [2022-11-25 17:20:55,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:55,902 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:20:55,902 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:55,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:20:55,903 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-25 17:20:55,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:55,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1812484344, now seen corresponding path program 1 times [2022-11-25 17:20:55,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:55,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88366509] [2022-11-25 17:20:55,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:55,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:55,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:55,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:55,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:55,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88366509] [2022-11-25 17:20:55,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88366509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:55,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:55,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:20:55,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13385137] [2022-11-25 17:20:55,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:55,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:20:55,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:55,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:20:55,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:20:56,025 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 173 [2022-11-25 17:20:56,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:56,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:20:56,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 173 [2022-11-25 17:20:56,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:20:56,099 INFO L130 PetriNetUnfolder]: 40/191 cut-off events. [2022-11-25 17:20:56,099 INFO L131 PetriNetUnfolder]: For 82/83 co-relation queries the response was YES. [2022-11-25 17:20:56,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 191 events. 40/191 cut-off events. For 82/83 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 828 event pairs, 14 based on Foata normal form. 2/192 useless extension candidates. Maximal degree in co-relation 523. Up to 75 conditions per place. [2022-11-25 17:20:56,100 INFO L137 encePairwiseOnDemand]: 167/173 looper letters, 21 selfloop transitions, 7 changer transitions 4/42 dead transitions. [2022-11-25 17:20:56,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 42 transitions, 223 flow [2022-11-25 17:20:56,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:20:56,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:20:56,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2022-11-25 17:20:56,102 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5722543352601156 [2022-11-25 17:20:56,102 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 297 transitions. [2022-11-25 17:20:56,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 297 transitions. [2022-11-25 17:20:56,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:20:56,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 297 transitions. [2022-11-25 17:20:56,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:56,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:56,106 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:56,106 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 133 flow. Second operand 3 states and 297 transitions. [2022-11-25 17:20:56,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 42 transitions, 223 flow [2022-11-25 17:20:56,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 42 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:20:56,108 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 153 flow [2022-11-25 17:20:56,109 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2022-11-25 17:20:56,109 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 6 predicate places. [2022-11-25 17:20:56,110 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 153 flow [2022-11-25 17:20:56,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:56,110 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:20:56,110 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:56,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:20:56,111 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-25 17:20:56,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:56,111 INFO L85 PathProgramCache]: Analyzing trace with hash -874167770, now seen corresponding path program 2 times [2022-11-25 17:20:56,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:56,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987020656] [2022-11-25 17:20:56,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:56,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:56,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:56,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:56,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987020656] [2022-11-25 17:20:56,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987020656] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:20:56,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369618162] [2022-11-25 17:20:56,255 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:20:56,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:20:56,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:20:56,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:20:56,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:20:56,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:20:56,364 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:20:56,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 17:20:56,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:20:56,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 17:20:56,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:20:56,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 17:20:56,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:20:56,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 17:20:56,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:56,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:20:56,648 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_124 (Array Int Int))) (not (= 0 (select (select (store |c_#pthreadsMutex| |c_~#mutex1~0.base| v_ArrVal_124) |c_~#mutex2~0.base|) |c_~#mutex2~0.offset|)))) is different from false [2022-11-25 17:20:56,667 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:20:56,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2022-11-25 17:20:56,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2022-11-25 17:20:56,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-25 17:20:56,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369618162] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:20:56,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:20:56,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-11-25 17:20:56,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47009650] [2022-11-25 17:20:56,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:20:56,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:20:56,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:56,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:20:56,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=35, Unknown=1, NotChecked=12, Total=72 [2022-11-25 17:20:56,744 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 173 [2022-11-25 17:20:56,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 153 flow. Second operand has 9 states, 9 states have (on average 78.55555555555556) internal successors, (707), 9 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:56,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:20:56,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 173 [2022-11-25 17:20:56,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:20:56,906 INFO L130 PetriNetUnfolder]: 19/115 cut-off events. [2022-11-25 17:20:56,906 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2022-11-25 17:20:56,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 115 events. 19/115 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 384 event pairs, 10 based on Foata normal form. 7/121 useless extension candidates. Maximal degree in co-relation 333. Up to 50 conditions per place. [2022-11-25 17:20:56,907 INFO L137 encePairwiseOnDemand]: 167/173 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2022-11-25 17:20:56,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 41 transitions, 242 flow [2022-11-25 17:20:56,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:20:56,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:20:56,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 409 transitions. [2022-11-25 17:20:56,910 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4728323699421965 [2022-11-25 17:20:56,910 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 409 transitions. [2022-11-25 17:20:56,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 409 transitions. [2022-11-25 17:20:56,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:20:56,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 409 transitions. [2022-11-25 17:20:56,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.8) internal successors, (409), 5 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:56,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:56,915 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:56,915 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 153 flow. Second operand 5 states and 409 transitions. [2022-11-25 17:20:56,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 41 transitions, 242 flow [2022-11-25 17:20:56,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 41 transitions, 224 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-11-25 17:20:56,918 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2022-11-25 17:20:56,918 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2022-11-25 17:20:56,919 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2022-11-25 17:20:56,919 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2022-11-25 17:20:56,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 78.55555555555556) internal successors, (707), 9 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:20:56,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2022-11-25 17:20:56,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2022-11-25 17:20:56,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2022-11-25 17:20:56,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2022-11-25 17:20:56,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2022-11-25 17:20:56,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2022-11-25 17:20:56,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2022-11-25 17:20:56,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2022-11-25 17:20:56,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2022-11-25 17:20:56,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2022-11-25 17:20:56,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2022-11-25 17:20:56,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2022-11-25 17:20:56,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:20:57,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 17:20:57,149 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:57,155 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:20:57,155 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:20:57,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:20:57 BasicIcfg [2022-11-25 17:20:57,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:20:57,159 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:20:57,159 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:20:57,159 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:20:57,160 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:20:50" (3/4) ... [2022-11-25 17:20:57,163 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:20:57,170 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-25 17:20:57,174 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-25 17:20:57,174 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 17:20:57,174 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 17:20:57,223 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:20:57,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:20:57,224 INFO L158 Benchmark]: Toolchain (without parser) took 8263.45ms. Allocated memory was 157.3MB in the beginning and 243.3MB in the end (delta: 86.0MB). Free memory was 125.5MB in the beginning and 198.8MB in the end (delta: -73.2MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2022-11-25 17:20:57,224 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:20:57,225 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.49ms. Allocated memory is still 157.3MB. Free memory was 125.5MB in the beginning and 106.5MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 17:20:57,225 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.38ms. Allocated memory is still 157.3MB. Free memory was 105.9MB in the beginning and 104.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:20:57,225 INFO L158 Benchmark]: Boogie Preprocessor took 58.29ms. Allocated memory is still 157.3MB. Free memory was 104.4MB in the beginning and 102.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:20:57,225 INFO L158 Benchmark]: RCFGBuilder took 526.09ms. Allocated memory is still 157.3MB. Free memory was 102.6MB in the beginning and 87.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 17:20:57,226 INFO L158 Benchmark]: TraceAbstraction took 7029.66ms. Allocated memory was 157.3MB in the beginning and 243.3MB in the end (delta: 86.0MB). Free memory was 87.6MB in the beginning and 200.9MB in the end (delta: -113.3MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. [2022-11-25 17:20:57,226 INFO L158 Benchmark]: Witness Printer took 64.43ms. Allocated memory is still 243.3MB. Free memory was 200.9MB in the beginning and 198.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:20:57,228 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.49ms. Allocated memory is still 157.3MB. Free memory was 125.5MB in the beginning and 106.5MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.38ms. Allocated memory is still 157.3MB. Free memory was 105.9MB in the beginning and 104.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.29ms. Allocated memory is still 157.3MB. Free memory was 104.4MB in the beginning and 102.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 526.09ms. Allocated memory is still 157.3MB. Free memory was 102.6MB in the beginning and 87.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7029.66ms. Allocated memory was 157.3MB in the beginning and 243.3MB in the end (delta: 86.0MB). Free memory was 87.6MB in the beginning and 200.9MB in the end (delta: -113.3MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. * Witness Printer took 64.43ms. Allocated memory is still 243.3MB. Free memory was 200.9MB in the beginning and 198.8MB in the end (delta: 2.1MB). 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, 93 PlacesBefore, 38 PlacesAfterwards, 91 TransitionsBefore, 36 TransitionsAfterwards, 1922 CoEnabledTransitionPairs, 10 FixpointIterations, 27 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 73 TotalNumberOfCompositions, 10681 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4916, independent: 4389, independent conditional: 0, independent unconditional: 4389, dependent: 527, dependent conditional: 0, dependent unconditional: 527, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1508, independent: 1434, independent conditional: 0, independent unconditional: 1434, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1508, independent: 1340, independent conditional: 0, independent unconditional: 1340, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 168, independent: 94, independent conditional: 0, independent unconditional: 94, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 289, independent: 124, independent conditional: 0, independent unconditional: 124, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4916, independent: 2955, independent conditional: 0, independent unconditional: 2955, dependent: 453, dependent conditional: 0, dependent unconditional: 453, unknown: 1508, unknown conditional: 0, unknown unconditional: 1508] , Statistics on independence cache: Total cache size (in pairs): 318, Positive cache size: 278, Positive conditional cache size: 0, Positive unconditional cache size: 278, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: 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, 132 locations, 12 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: 6.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 294 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 149 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 35 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 623 IncrementalHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 24 mSDtfsCounter, 623 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=5, InterpolantAutomatonStates: 31, 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, 1.0s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 148 ConstructedInterpolants, 3 QuantifiedInterpolants, 438 SizeOfPredicates, 3 NumberOfNonLiveVariables, 150 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 1/4 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 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 17:20:57,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66bd67ec-b95a-4178-af8d-d9942771d376/bin/uautomizer-ZsLfNo2U6R/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