./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:55:37,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:55:37,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:55:37,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:55:38,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:55:38,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:55:38,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:55:38,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:55:38,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:55:38,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:55:38,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:55:38,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:55:38,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:55:38,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:55:38,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:55:38,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:55:38,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:55:38,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:55:38,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:55:38,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:55:38,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:55:38,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:55:38,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:55:38,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:55:38,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:55:38,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:55:38,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:55:38,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:55:38,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:55:38,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:55:38,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:55:38,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:55:38,045 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:55:38,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:55:38,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:55:38,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:55:38,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:55:38,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:55:38,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:55:38,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:55:38,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:55:38,053 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:55:38,074 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:55:38,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:55:38,075 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:55:38,075 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:55:38,076 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:55:38,076 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:55:38,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:55:38,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:55:38,077 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:55:38,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:55:38,078 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:55:38,078 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:55:38,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:55:38,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:55:38,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:55:38,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:55:38,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:55:38,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:55:38,080 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:55:38,080 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:55:38,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:55:38,081 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:55:38,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:55:38,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:55:38,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:55:38,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:55:38,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:55:38,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:55:38,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:55:38,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:55:38,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:55:38,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:55:38,083 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:55:38,084 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:55:38,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:55:38,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 [2022-11-02 20:55:38,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:55:38,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:55:38,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:55:38,387 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:55:38,387 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:55:38,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2022-11-02 20:55:38,465 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/data/b1a9a82bc/36b849b035244585a2e992991e08496b/FLAG683dfaefa [2022-11-02 20:55:39,064 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:55:39,069 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2022-11-02 20:55:39,087 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/data/b1a9a82bc/36b849b035244585a2e992991e08496b/FLAG683dfaefa [2022-11-02 20:55:39,362 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/data/b1a9a82bc/36b849b035244585a2e992991e08496b [2022-11-02 20:55:39,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:55:39,369 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:55:39,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:55:39,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:55:39,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:55:39,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:55:39" (1/1) ... [2022-11-02 20:55:39,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae30e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:39, skipping insertion in model container [2022-11-02 20:55:39,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:55:39" (1/1) ... [2022-11-02 20:55:39,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:55:39,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:55:39,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:55:39,900 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:55:39,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:55:39,995 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:55:39,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:39 WrapperNode [2022-11-02 20:55:39,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:55:39,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:55:39,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:55:39,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:55:40,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:39" (1/1) ... [2022-11-02 20:55:40,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:39" (1/1) ... [2022-11-02 20:55:40,060 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 71 [2022-11-02 20:55:40,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:55:40,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:55:40,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:55:40,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:55:40,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:39" (1/1) ... [2022-11-02 20:55:40,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:39" (1/1) ... [2022-11-02 20:55:40,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:39" (1/1) ... [2022-11-02 20:55:40,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:39" (1/1) ... [2022-11-02 20:55:40,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:39" (1/1) ... [2022-11-02 20:55:40,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:39" (1/1) ... [2022-11-02 20:55:40,111 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:39" (1/1) ... [2022-11-02 20:55:40,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:39" (1/1) ... [2022-11-02 20:55:40,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:55:40,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:55:40,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:55:40,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:55:40,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:39" (1/1) ... [2022-11-02 20:55:40,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:55:40,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:40,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:40,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:55:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:55:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:55:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:55:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:55:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:55:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:55:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:55:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:55:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:55:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:55:40,212 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:55:40,440 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:55:40,442 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:55:40,769 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:55:40,800 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:55:40,805 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:55:40,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:55:40 BoogieIcfgContainer [2022-11-02 20:55:40,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:55:40,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:55:40,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:55:40,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:55:40,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:55:39" (1/3) ... [2022-11-02 20:55:40,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4711d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:55:40, skipping insertion in model container [2022-11-02 20:55:40,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:39" (2/3) ... [2022-11-02 20:55:40,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4711d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:55:40, skipping insertion in model container [2022-11-02 20:55:40,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:55:40" (3/3) ... [2022-11-02 20:55:40,823 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2022-11-02 20:55:40,856 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:55:40,867 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:55:40,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 20:55:40,868 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:55:40,967 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:55:41,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 92 transitions, 189 flow [2022-11-02 20:55:41,104 INFO L130 PetriNetUnfolder]: 1/94 cut-off events. [2022-11-02 20:55:41,105 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:55:41,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 94 events. 1/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-11-02 20:55:41,107 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 92 transitions, 189 flow [2022-11-02 20:55:41,115 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 89 transitions, 181 flow [2022-11-02 20:55:41,135 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:55:41,144 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;@22951962, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:55:41,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-02 20:55:41,181 INFO L130 PetriNetUnfolder]: 1/74 cut-off events. [2022-11-02 20:55:41,182 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:55:41,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:41,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:41,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:55:41,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:41,190 INFO L85 PathProgramCache]: Analyzing trace with hash -116795957, now seen corresponding path program 1 times [2022-11-02 20:55:41,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:41,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467891466] [2022-11-02 20:55:41,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:41,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:42,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:42,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:42,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467891466] [2022-11-02 20:55:42,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467891466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:42,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:42,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:55:42,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316017979] [2022-11-02 20:55:42,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:42,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:55:42,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:42,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:55:42,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:55:42,336 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2022-11-02 20:55:42,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 89 transitions, 181 flow. Second operand has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:42,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:42,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2022-11-02 20:55:42,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:55:42,698 INFO L130 PetriNetUnfolder]: 91/359 cut-off events. [2022-11-02 20:55:42,698 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:55:42,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 359 events. 91/359 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1530 event pairs, 32 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 507. Up to 164 conditions per place. [2022-11-02 20:55:42,703 INFO L137 encePairwiseOnDemand]: 81/92 looper letters, 32 selfloop transitions, 22 changer transitions 4/118 dead transitions. [2022-11-02 20:55:42,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 118 transitions, 355 flow [2022-11-02 20:55:42,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:55:42,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:55:42,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 437 transitions. [2022-11-02 20:55:42,721 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2022-11-02 20:55:42,722 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 437 transitions. [2022-11-02 20:55:42,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 437 transitions. [2022-11-02 20:55:42,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:42,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 437 transitions. [2022-11-02 20:55:42,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 72.83333333333333) internal successors, (437), 6 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:42,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:42,739 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:42,741 INFO L175 Difference]: Start difference. First operand has 92 places, 89 transitions, 181 flow. Second operand 6 states and 437 transitions. [2022-11-02 20:55:42,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 118 transitions, 355 flow [2022-11-02 20:55:42,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 118 transitions, 354 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:55:42,749 INFO L231 Difference]: Finished difference. Result has 101 places, 110 transitions, 330 flow [2022-11-02 20:55:42,751 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=101, PETRI_TRANSITIONS=110} [2022-11-02 20:55:42,755 INFO L287 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2022-11-02 20:55:42,755 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 110 transitions, 330 flow [2022-11-02 20:55:42,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:42,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:42,756 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:42,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:55:42,757 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:55:42,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:42,758 INFO L85 PathProgramCache]: Analyzing trace with hash 398137758, now seen corresponding path program 1 times [2022-11-02 20:55:42,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:42,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563266536] [2022-11-02 20:55:42,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:42,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:43,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:43,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563266536] [2022-11-02 20:55:43,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563266536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:43,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:43,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:55:43,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712593264] [2022-11-02 20:55:43,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:43,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:55:43,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:43,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:55:43,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:55:43,141 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 92 [2022-11-02 20:55:43,141 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 110 transitions, 330 flow. Second operand has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:43,141 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:43,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 92 [2022-11-02 20:55:43,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:55:43,314 INFO L130 PetriNetUnfolder]: 114/405 cut-off events. [2022-11-02 20:55:43,314 INFO L131 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2022-11-02 20:55:43,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950 conditions, 405 events. 114/405 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1758 event pairs, 17 based on Foata normal form. 0/393 useless extension candidates. Maximal degree in co-relation 883. Up to 184 conditions per place. [2022-11-02 20:55:43,318 INFO L137 encePairwiseOnDemand]: 81/92 looper letters, 38 selfloop transitions, 26 changer transitions 11/146 dead transitions. [2022-11-02 20:55:43,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 146 transitions, 648 flow [2022-11-02 20:55:43,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:55:43,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:55:43,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 487 transitions. [2022-11-02 20:55:43,322 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8822463768115942 [2022-11-02 20:55:43,323 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 487 transitions. [2022-11-02 20:55:43,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 487 transitions. [2022-11-02 20:55:43,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:43,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 487 transitions. [2022-11-02 20:55:43,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:43,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:43,329 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:43,330 INFO L175 Difference]: Start difference. First operand has 101 places, 110 transitions, 330 flow. Second operand 6 states and 487 transitions. [2022-11-02 20:55:43,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 146 transitions, 648 flow [2022-11-02 20:55:43,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 146 transitions, 648 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:55:43,341 INFO L231 Difference]: Finished difference. Result has 111 places, 131 transitions, 554 flow [2022-11-02 20:55:43,341 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=554, PETRI_PLACES=111, PETRI_TRANSITIONS=131} [2022-11-02 20:55:43,342 INFO L287 CegarLoopForPetriNet]: 92 programPoint places, 19 predicate places. [2022-11-02 20:55:43,343 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 131 transitions, 554 flow [2022-11-02 20:55:43,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:43,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:43,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:43,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:55:43,345 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:55:43,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:43,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1422047278, now seen corresponding path program 1 times [2022-11-02 20:55:43,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:43,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233271439] [2022-11-02 20:55:43,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:43,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:43,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:43,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233271439] [2022-11-02 20:55:43,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233271439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:43,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:43,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:55:43,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641097315] [2022-11-02 20:55:43,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:43,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:55:43,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:43,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:55:43,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:55:43,931 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 92 [2022-11-02 20:55:43,932 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 131 transitions, 554 flow. Second operand has 7 states, 7 states have (on average 65.71428571428571) internal successors, (460), 7 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:43,932 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:43,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 92 [2022-11-02 20:55:43,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:55:44,201 INFO L130 PetriNetUnfolder]: 98/439 cut-off events. [2022-11-02 20:55:44,201 INFO L131 PetriNetUnfolder]: For 331/347 co-relation queries the response was YES. [2022-11-02 20:55:44,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1187 conditions, 439 events. 98/439 cut-off events. For 331/347 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2124 event pairs, 23 based on Foata normal form. 8/440 useless extension candidates. Maximal degree in co-relation 952. Up to 157 conditions per place. [2022-11-02 20:55:44,207 INFO L137 encePairwiseOnDemand]: 85/92 looper letters, 48 selfloop transitions, 1 changer transitions 18/144 dead transitions. [2022-11-02 20:55:44,207 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 144 transitions, 734 flow [2022-11-02 20:55:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:55:44,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:55:44,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 417 transitions. [2022-11-02 20:55:44,210 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7554347826086957 [2022-11-02 20:55:44,210 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 417 transitions. [2022-11-02 20:55:44,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 417 transitions. [2022-11-02 20:55:44,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:44,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 417 transitions. [2022-11-02 20:55:44,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:44,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:44,214 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:44,215 INFO L175 Difference]: Start difference. First operand has 111 places, 131 transitions, 554 flow. Second operand 6 states and 417 transitions. [2022-11-02 20:55:44,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 144 transitions, 734 flow [2022-11-02 20:55:44,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 144 transitions, 716 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-02 20:55:44,227 INFO L231 Difference]: Finished difference. Result has 119 places, 126 transitions, 542 flow [2022-11-02 20:55:44,228 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=542, PETRI_PLACES=119, PETRI_TRANSITIONS=126} [2022-11-02 20:55:44,229 INFO L287 CegarLoopForPetriNet]: 92 programPoint places, 27 predicate places. [2022-11-02 20:55:44,229 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 126 transitions, 542 flow [2022-11-02 20:55:44,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.71428571428571) internal successors, (460), 7 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:44,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:44,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:44,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:55:44,231 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:55:44,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:44,231 INFO L85 PathProgramCache]: Analyzing trace with hash 374429993, now seen corresponding path program 1 times [2022-11-02 20:55:44,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:44,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088624218] [2022-11-02 20:55:44,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:44,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:44,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:44,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:44,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088624218] [2022-11-02 20:55:44,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088624218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:44,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:44,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:55:44,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192544411] [2022-11-02 20:55:44,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:44,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:55:44,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:44,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:55:44,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:55:44,830 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 92 [2022-11-02 20:55:44,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 126 transitions, 542 flow. Second operand has 11 states, 11 states have (on average 49.36363636363637) internal successors, (543), 11 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:44,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:44,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 92 [2022-11-02 20:55:44,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:55:45,288 INFO L130 PetriNetUnfolder]: 130/468 cut-off events. [2022-11-02 20:55:45,288 INFO L131 PetriNetUnfolder]: For 327/329 co-relation queries the response was YES. [2022-11-02 20:55:45,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 468 events. 130/468 cut-off events. For 327/329 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2197 event pairs, 32 based on Foata normal form. 11/477 useless extension candidates. Maximal degree in co-relation 1391. Up to 113 conditions per place. [2022-11-02 20:55:45,293 INFO L137 encePairwiseOnDemand]: 82/92 looper letters, 80 selfloop transitions, 29 changer transitions 24/164 dead transitions. [2022-11-02 20:55:45,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 164 transitions, 1012 flow [2022-11-02 20:55:45,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:55:45,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:55:45,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 533 transitions. [2022-11-02 20:55:45,296 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5793478260869566 [2022-11-02 20:55:45,296 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 533 transitions. [2022-11-02 20:55:45,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 533 transitions. [2022-11-02 20:55:45,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:45,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 533 transitions. [2022-11-02 20:55:45,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 53.3) internal successors, (533), 10 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:45,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:45,301 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:45,301 INFO L175 Difference]: Start difference. First operand has 119 places, 126 transitions, 542 flow. Second operand 10 states and 533 transitions. [2022-11-02 20:55:45,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 164 transitions, 1012 flow [2022-11-02 20:55:45,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 164 transitions, 1005 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-02 20:55:45,313 INFO L231 Difference]: Finished difference. Result has 117 places, 113 transitions, 543 flow [2022-11-02 20:55:45,313 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=543, PETRI_PLACES=117, PETRI_TRANSITIONS=113} [2022-11-02 20:55:45,315 INFO L287 CegarLoopForPetriNet]: 92 programPoint places, 25 predicate places. [2022-11-02 20:55:45,315 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 113 transitions, 543 flow [2022-11-02 20:55:45,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 49.36363636363637) internal successors, (543), 11 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:45,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:45,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:45,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:55:45,324 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:55:45,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:45,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1227058476, now seen corresponding path program 1 times [2022-11-02 20:55:45,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:45,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398110283] [2022-11-02 20:55:45,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:45,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:45,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:55:45,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:45,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398110283] [2022-11-02 20:55:45,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398110283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:45,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:45,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:55:45,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411467169] [2022-11-02 20:55:45,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:45,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:55:45,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:45,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:55:45,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:55:45,840 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 92 [2022-11-02 20:55:45,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 113 transitions, 543 flow. Second operand has 11 states, 11 states have (on average 49.36363636363637) internal successors, (543), 11 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:45,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:45,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 92 [2022-11-02 20:55:45,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:55:46,309 INFO L130 PetriNetUnfolder]: 76/268 cut-off events. [2022-11-02 20:55:46,309 INFO L131 PetriNetUnfolder]: For 244/244 co-relation queries the response was YES. [2022-11-02 20:55:46,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 941 conditions, 268 events. 76/268 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 893 event pairs, 18 based on Foata normal form. 11/278 useless extension candidates. Maximal degree in co-relation 919. Up to 75 conditions per place. [2022-11-02 20:55:46,311 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 0 selfloop transitions, 0 changer transitions 151/151 dead transitions. [2022-11-02 20:55:46,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 151 transitions, 1033 flow [2022-11-02 20:55:46,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:55:46,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:55:46,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 534 transitions. [2022-11-02 20:55:46,314 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5804347826086956 [2022-11-02 20:55:46,315 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 534 transitions. [2022-11-02 20:55:46,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 534 transitions. [2022-11-02 20:55:46,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:46,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 534 transitions. [2022-11-02 20:55:46,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 53.4) internal successors, (534), 10 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:46,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:46,320 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:46,320 INFO L175 Difference]: Start difference. First operand has 117 places, 113 transitions, 543 flow. Second operand 10 states and 534 transitions. [2022-11-02 20:55:46,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 151 transitions, 1033 flow [2022-11-02 20:55:46,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 151 transitions, 862 flow, removed 24 selfloop flow, removed 11 redundant places. [2022-11-02 20:55:46,327 INFO L231 Difference]: Finished difference. Result has 105 places, 0 transitions, 0 flow [2022-11-02 20:55:46,327 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=105, PETRI_TRANSITIONS=0} [2022-11-02 20:55:46,328 INFO L287 CegarLoopForPetriNet]: 92 programPoint places, 13 predicate places. [2022-11-02 20:55:46,328 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 0 transitions, 0 flow [2022-11-02 20:55:46,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 49.36363636363637) internal successors, (543), 11 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:46,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2022-11-02 20:55:46,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-02 20:55:46,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2022-11-02 20:55:46,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2022-11-02 20:55:46,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:55:46,333 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-02 20:55:46,339 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:55:46,339 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:55:46,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:55:46 BasicIcfg [2022-11-02 20:55:46,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:55:46,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:55:46,346 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:55:46,346 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:55:46,346 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:55:40" (3/4) ... [2022-11-02 20:55:46,349 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:55:46,356 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-02 20:55:46,360 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-02 20:55:46,361 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-02 20:55:46,361 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:55:46,395 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:55:46,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:55:46,396 INFO L158 Benchmark]: Toolchain (without parser) took 7026.68ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 91.7MB in the beginning and 99.8MB in the end (delta: -8.0MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2022-11-02 20:55:46,396 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 42.0MB in the beginning and 41.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:55:46,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 624.26ms. Allocated memory is still 125.8MB. Free memory was 91.5MB in the beginning and 84.8MB in the end (delta: 6.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:55:46,397 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.62ms. Allocated memory is still 125.8MB. Free memory was 84.8MB in the beginning and 82.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:55:46,397 INFO L158 Benchmark]: Boogie Preprocessor took 59.76ms. Allocated memory is still 125.8MB. Free memory was 82.7MB in the beginning and 81.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:55:46,398 INFO L158 Benchmark]: RCFGBuilder took 688.44ms. Allocated memory is still 125.8MB. Free memory was 80.6MB in the beginning and 101.6MB in the end (delta: -21.0MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-11-02 20:55:46,398 INFO L158 Benchmark]: TraceAbstraction took 5532.96ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 100.7MB in the beginning and 102.9MB in the end (delta: -2.2MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. [2022-11-02 20:55:46,398 INFO L158 Benchmark]: Witness Printer took 49.75ms. Allocated memory is still 182.5MB. Free memory was 102.9MB in the beginning and 99.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:55:46,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 42.0MB in the beginning and 41.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 624.26ms. Allocated memory is still 125.8MB. Free memory was 91.5MB in the beginning and 84.8MB in the end (delta: 6.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.62ms. Allocated memory is still 125.8MB. Free memory was 84.8MB in the beginning and 82.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.76ms. Allocated memory is still 125.8MB. Free memory was 82.7MB in the beginning and 81.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 688.44ms. Allocated memory is still 125.8MB. Free memory was 80.6MB in the beginning and 101.6MB in the end (delta: -21.0MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5532.96ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 100.7MB in the beginning and 102.9MB in the end (delta: -2.2MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. * Witness Printer took 49.75ms. Allocated memory is still 182.5MB. Free memory was 102.9MB in the beginning and 99.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1022]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 996]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 243 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 243 mSDsluCounter, 88 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 894 IncrementalHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 55 mSDtfsCounter, 894 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=554occurred in iteration=2, InterpolantAutomatonStates: 38, 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, 0.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 317 NumberOfCodeBlocks, 317 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 1575 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 20:55:46,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19746059-be9c-4797-84d8-43a77068efa6/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE