./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_45-escape_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_45-escape_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 305ca34367a0384e1cfb307304cf4f5bc67454529c9c0988e189092c0a2626a1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:06:47,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:06:47,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:06:47,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:06:47,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:06:47,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:06:47,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:06:47,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:06:47,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:06:47,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:06:47,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:06:47,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:06:47,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:06:47,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:06:47,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:06:47,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:06:47,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:06:47,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:06:47,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:06:47,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:06:47,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:06:47,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:06:47,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:06:47,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:06:47,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:06:47,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:06:47,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:06:47,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:06:47,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:06:47,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:06:47,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:06:47,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:06:47,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:06:47,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:06:47,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:06:47,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:06:47,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:06:47,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:06:47,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:06:47,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:06:47,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:06:47,903 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:06:47,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:06:47,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:06:47,955 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:06:47,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:06:47,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:06:47,957 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:06:47,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:06:47,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:06:47,959 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:06:47,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:06:47,960 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:06:47,961 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:06:47,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:06:47,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:06:47,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:06:47,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:06:47,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:06:47,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:06:47,962 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:06:47,963 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:06:47,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:06:47,963 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:06:47,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:06:47,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:06:47,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:06:47,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:06:47,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:06:47,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:06:47,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:06:47,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:06:47,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:06:47,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:06:47,967 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:06:47,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:06:47,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:06:47,968 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_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 305ca34367a0384e1cfb307304cf4f5bc67454529c9c0988e189092c0a2626a1 [2022-11-20 11:06:48,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:06:48,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:06:48,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:06:48,375 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:06:48,375 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:06:48,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/04-mutex_45-escape_rc.i [2022-11-20 11:06:51,523 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:06:51,984 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:06:51,985 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/sv-benchmarks/c/goblint-regression/04-mutex_45-escape_rc.i [2022-11-20 11:06:52,002 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN/data/8869bc403/6fb38074206a4089b5b3b45420517f46/FLAG693d06ff3 [2022-11-20 11:06:52,019 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN/data/8869bc403/6fb38074206a4089b5b3b45420517f46 [2022-11-20 11:06:52,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:06:52,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:06:52,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:06:52,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:06:52,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:06:52,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:52" (1/1) ... [2022-11-20 11:06:52,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@735b653b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:52, skipping insertion in model container [2022-11-20 11:06:52,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:52" (1/1) ... [2022-11-20 11:06:52,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:06:52,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:06:52,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:06:52,703 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:06:52,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:06:52,871 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:06:52,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:52 WrapperNode [2022-11-20 11:06:52,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:06:52,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:06:52,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:06:52,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:06:52,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:52" (1/1) ... [2022-11-20 11:06:52,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:52" (1/1) ... [2022-11-20 11:06:52,947 INFO L138 Inliner]: procedures = 262, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2022-11-20 11:06:52,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:06:52,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:06:52,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:06:52,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:06:52,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:52" (1/1) ... [2022-11-20 11:06:52,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:52" (1/1) ... [2022-11-20 11:06:52,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:52" (1/1) ... [2022-11-20 11:06:52,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:52" (1/1) ... [2022-11-20 11:06:52,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:52" (1/1) ... [2022-11-20 11:06:52,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:52" (1/1) ... [2022-11-20 11:06:52,984 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:52" (1/1) ... [2022-11-20 11:06:52,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:52" (1/1) ... [2022-11-20 11:06:52,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:06:52,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:06:52,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:06:52,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:06:52,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:52" (1/1) ... [2022-11-20 11:06:53,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:06:53,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:53,051 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:53,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:06:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:06:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:06:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:06:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:06:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:06:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:06:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:06:53,115 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:06:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:06:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:06:53,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:06:53,118 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:06:53,309 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:06:53,312 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:06:53,773 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:06:53,781 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:06:53,781 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:06:53,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:06:53 BoogieIcfgContainer [2022-11-20 11:06:53,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:06:53,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:06:53,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:06:53,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:06:53,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:06:52" (1/3) ... [2022-11-20 11:06:53,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ef3de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:06:53, skipping insertion in model container [2022-11-20 11:06:53,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:52" (2/3) ... [2022-11-20 11:06:53,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ef3de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:06:53, skipping insertion in model container [2022-11-20 11:06:53,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:06:53" (3/3) ... [2022-11-20 11:06:53,793 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_45-escape_rc.i [2022-11-20 11:06:53,803 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:06:53,815 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:06:53,815 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-20 11:06:53,815 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:06:53,883 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 11:06:53,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 96 transitions, 200 flow [2022-11-20 11:06:53,978 INFO L130 PetriNetUnfolder]: 0/95 cut-off events. [2022-11-20 11:06:53,978 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:06:53,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 0/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-20 11:06:53,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 96 transitions, 200 flow [2022-11-20 11:06:53,987 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 85 transitions, 173 flow [2022-11-20 11:06:53,997 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:06:54,004 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;@3e65c0e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:06:54,005 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 11:06:54,023 INFO L130 PetriNetUnfolder]: 0/46 cut-off events. [2022-11-20 11:06:54,023 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:06:54,023 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:06:54,024 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:54,025 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-20 11:06:54,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:54,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1884732073, now seen corresponding path program 1 times [2022-11-20 11:06:54,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:54,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696505759] [2022-11-20 11:06:54,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:54,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:55,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:55,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:55,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696505759] [2022-11-20 11:06:55,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696505759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:55,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:06:55,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:06:55,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729960740] [2022-11-20 11:06:55,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:55,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:06:55,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:55,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:06:55,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:06:55,088 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 96 [2022-11-20 11:06:55,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 85 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:55,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:06:55,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 96 [2022-11-20 11:06:55,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:06:55,737 INFO L130 PetriNetUnfolder]: 263/781 cut-off events. [2022-11-20 11:06:55,738 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:06:55,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1353 conditions, 781 events. 263/781 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4150 event pairs, 158 based on Foata normal form. 0/697 useless extension candidates. Maximal degree in co-relation 1317. Up to 436 conditions per place. [2022-11-20 11:06:55,762 INFO L137 encePairwiseOnDemand]: 85/96 looper letters, 67 selfloop transitions, 22 changer transitions 0/139 dead transitions. [2022-11-20 11:06:55,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 139 transitions, 459 flow [2022-11-20 11:06:55,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:06:55,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:06:55,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 438 transitions. [2022-11-20 11:06:55,792 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7604166666666666 [2022-11-20 11:06:55,793 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 438 transitions. [2022-11-20 11:06:55,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 438 transitions. [2022-11-20 11:06:55,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:06:55,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 438 transitions. [2022-11-20 11:06:55,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:55,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:55,820 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:55,823 INFO L175 Difference]: Start difference. First operand has 89 places, 85 transitions, 173 flow. Second operand 6 states and 438 transitions. [2022-11-20 11:06:55,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 139 transitions, 459 flow [2022-11-20 11:06:55,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 139 transitions, 458 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:06:55,836 INFO L231 Difference]: Finished difference. Result has 98 places, 106 transitions, 322 flow [2022-11-20 11:06:55,838 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=322, PETRI_PLACES=98, PETRI_TRANSITIONS=106} [2022-11-20 11:06:55,845 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 9 predicate places. [2022-11-20 11:06:55,846 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 106 transitions, 322 flow [2022-11-20 11:06:55,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:55,846 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:06:55,847 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:55,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:06:55,849 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-20 11:06:55,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:55,850 INFO L85 PathProgramCache]: Analyzing trace with hash -533052805, now seen corresponding path program 1 times [2022-11-20 11:06:55,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:55,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581906384] [2022-11-20 11:06:55,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:55,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:56,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:56,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581906384] [2022-11-20 11:06:56,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581906384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:56,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:06:56,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:06:56,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501519930] [2022-11-20 11:06:56,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:56,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:06:56,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:56,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:06:56,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:06:56,378 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 96 [2022-11-20 11:06:56,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 106 transitions, 322 flow. Second operand has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:56,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:06:56,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 96 [2022-11-20 11:06:56,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:06:57,018 INFO L130 PetriNetUnfolder]: 345/1002 cut-off events. [2022-11-20 11:06:57,019 INFO L131 PetriNetUnfolder]: For 271/279 co-relation queries the response was YES. [2022-11-20 11:06:57,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2075 conditions, 1002 events. 345/1002 cut-off events. For 271/279 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 5781 event pairs, 126 based on Foata normal form. 0/912 useless extension candidates. Maximal degree in co-relation 2037. Up to 538 conditions per place. [2022-11-20 11:06:57,035 INFO L137 encePairwiseOnDemand]: 85/96 looper letters, 103 selfloop transitions, 26 changer transitions 0/180 dead transitions. [2022-11-20 11:06:57,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 180 transitions, 818 flow [2022-11-20 11:06:57,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:06:57,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:06:57,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 475 transitions. [2022-11-20 11:06:57,038 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8246527777777778 [2022-11-20 11:06:57,039 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 475 transitions. [2022-11-20 11:06:57,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 475 transitions. [2022-11-20 11:06:57,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:06:57,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 475 transitions. [2022-11-20 11:06:57,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:57,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:57,046 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:57,046 INFO L175 Difference]: Start difference. First operand has 98 places, 106 transitions, 322 flow. Second operand 6 states and 475 transitions. [2022-11-20 11:06:57,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 180 transitions, 818 flow [2022-11-20 11:06:57,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 180 transitions, 818 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:06:57,060 INFO L231 Difference]: Finished difference. Result has 108 places, 127 transitions, 506 flow [2022-11-20 11:06:57,060 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=506, PETRI_PLACES=108, PETRI_TRANSITIONS=127} [2022-11-20 11:06:57,061 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 19 predicate places. [2022-11-20 11:06:57,062 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 127 transitions, 506 flow [2022-11-20 11:06:57,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:57,063 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:06:57,063 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:57,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:06:57,064 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-20 11:06:57,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:57,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1560291010, now seen corresponding path program 1 times [2022-11-20 11:06:57,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:57,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692227167] [2022-11-20 11:06:57,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:57,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:57,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:57,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:57,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692227167] [2022-11-20 11:06:57,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692227167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:57,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:06:57,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:06:57,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687491779] [2022-11-20 11:06:57,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:57,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:06:57,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:57,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:06:57,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:06:57,506 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 96 [2022-11-20 11:06:57,507 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 127 transitions, 506 flow. Second operand has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 6 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:57,507 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:06:57,507 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 96 [2022-11-20 11:06:57,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:06:58,044 INFO L130 PetriNetUnfolder]: 402/1149 cut-off events. [2022-11-20 11:06:58,044 INFO L131 PetriNetUnfolder]: For 760/773 co-relation queries the response was YES. [2022-11-20 11:06:58,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2876 conditions, 1149 events. 402/1149 cut-off events. For 760/773 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 7004 event pairs, 154 based on Foata normal form. 4/1071 useless extension candidates. Maximal degree in co-relation 2831. Up to 747 conditions per place. [2022-11-20 11:06:58,055 INFO L137 encePairwiseOnDemand]: 81/96 looper letters, 90 selfloop transitions, 53 changer transitions 0/191 dead transitions. [2022-11-20 11:06:58,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 191 transitions, 1080 flow [2022-11-20 11:06:58,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:06:58,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:06:58,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 427 transitions. [2022-11-20 11:06:58,058 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7413194444444444 [2022-11-20 11:06:58,058 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 427 transitions. [2022-11-20 11:06:58,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 427 transitions. [2022-11-20 11:06:58,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:06:58,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 427 transitions. [2022-11-20 11:06:58,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:58,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:58,063 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:58,063 INFO L175 Difference]: Start difference. First operand has 108 places, 127 transitions, 506 flow. Second operand 6 states and 427 transitions. [2022-11-20 11:06:58,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 191 transitions, 1080 flow [2022-11-20 11:06:58,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 191 transitions, 1080 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:06:58,079 INFO L231 Difference]: Finished difference. Result has 118 places, 174 transitions, 988 flow [2022-11-20 11:06:58,080 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=988, PETRI_PLACES=118, PETRI_TRANSITIONS=174} [2022-11-20 11:06:58,083 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 29 predicate places. [2022-11-20 11:06:58,083 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 174 transitions, 988 flow [2022-11-20 11:06:58,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 6 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:58,084 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:06:58,084 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:58,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:06:58,085 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-20 11:06:58,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:58,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1821209600, now seen corresponding path program 1 times [2022-11-20 11:06:58,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:58,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760652856] [2022-11-20 11:06:58,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:58,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:58,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:06:58,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:58,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760652856] [2022-11-20 11:06:58,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760652856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:58,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:06:58,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:06:58,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601307417] [2022-11-20 11:06:58,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:58,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:06:58,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:58,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:06:58,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:06:58,475 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 96 [2022-11-20 11:06:58,475 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 174 transitions, 988 flow. Second operand has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:58,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:06:58,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 96 [2022-11-20 11:06:58,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:06:59,047 INFO L130 PetriNetUnfolder]: 579/1520 cut-off events. [2022-11-20 11:06:59,048 INFO L131 PetriNetUnfolder]: For 1835/1845 co-relation queries the response was YES. [2022-11-20 11:06:59,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4549 conditions, 1520 events. 579/1520 cut-off events. For 1835/1845 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 9440 event pairs, 179 based on Foata normal form. 0/1447 useless extension candidates. Maximal degree in co-relation 4501. Up to 1010 conditions per place. [2022-11-20 11:06:59,063 INFO L137 encePairwiseOnDemand]: 77/96 looper letters, 132 selfloop transitions, 83 changer transitions 4/269 dead transitions. [2022-11-20 11:06:59,063 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 269 transitions, 1892 flow [2022-11-20 11:06:59,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:06:59,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:06:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 468 transitions. [2022-11-20 11:06:59,066 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8125 [2022-11-20 11:06:59,066 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 468 transitions. [2022-11-20 11:06:59,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 468 transitions. [2022-11-20 11:06:59,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:06:59,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 468 transitions. [2022-11-20 11:06:59,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:59,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:59,073 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 96.0) internal successors, (672), 7 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:59,077 INFO L175 Difference]: Start difference. First operand has 118 places, 174 transitions, 988 flow. Second operand 6 states and 468 transitions. [2022-11-20 11:06:59,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 269 transitions, 1892 flow [2022-11-20 11:06:59,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 269 transitions, 1828 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-11-20 11:06:59,103 INFO L231 Difference]: Finished difference. Result has 128 places, 243 transitions, 1680 flow [2022-11-20 11:06:59,104 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1680, PETRI_PLACES=128, PETRI_TRANSITIONS=243} [2022-11-20 11:06:59,106 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 39 predicate places. [2022-11-20 11:06:59,106 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 243 transitions, 1680 flow [2022-11-20 11:06:59,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:06:59,107 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:06:59,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:59,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:06:59,111 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-20 11:06:59,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:59,112 INFO L85 PathProgramCache]: Analyzing trace with hash 98355511, now seen corresponding path program 1 times [2022-11-20 11:06:59,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:59,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035795131] [2022-11-20 11:06:59,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:59,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:59,155 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:06:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:06:59,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:06:59,230 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:06:59,231 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-11-20 11:06:59,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2022-11-20 11:06:59,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2022-11-20 11:06:59,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2022-11-20 11:06:59,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2022-11-20 11:06:59,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-11-20 11:06:59,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-11-20 11:06:59,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-11-20 11:06:59,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:06:59,236 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 11:06:59,245 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:06:59,245 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:06:59,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:06:59 BasicIcfg [2022-11-20 11:06:59,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:06:59,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:06:59,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:06:59,303 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:06:59,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:06:53" (3/4) ... [2022-11-20 11:06:59,310 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:06:59,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:06:59,314 INFO L158 Benchmark]: Toolchain (without parser) took 7286.50ms. Allocated memory was 144.7MB in the beginning and 220.2MB in the end (delta: 75.5MB). Free memory was 110.7MB in the beginning and 75.5MB in the end (delta: 35.2MB). Peak memory consumption was 113.4MB. Max. memory is 16.1GB. [2022-11-20 11:06:59,315 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 144.7MB. Free memory was 86.2MB in the beginning and 86.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:06:59,316 INFO L158 Benchmark]: CACSL2BoogieTranslator took 846.28ms. Allocated memory is still 144.7MB. Free memory was 110.4MB in the beginning and 83.7MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-20 11:06:59,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.81ms. Allocated memory is still 144.7MB. Free memory was 83.3MB in the beginning and 81.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:06:59,319 INFO L158 Benchmark]: Boogie Preprocessor took 37.13ms. Allocated memory is still 144.7MB. Free memory was 81.1MB in the beginning and 79.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:06:59,320 INFO L158 Benchmark]: RCFGBuilder took 794.33ms. Allocated memory was 144.7MB in the beginning and 182.5MB in the end (delta: 37.7MB). Free memory was 79.0MB in the beginning and 151.1MB in the end (delta: -72.0MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2022-11-20 11:06:59,327 INFO L158 Benchmark]: TraceAbstraction took 5516.53ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 150.2MB in the beginning and 76.6MB in the end (delta: 73.6MB). Peak memory consumption was 111.2MB. Max. memory is 16.1GB. [2022-11-20 11:06:59,327 INFO L158 Benchmark]: Witness Printer took 7.12ms. Allocated memory is still 220.2MB. Free memory was 76.6MB in the beginning and 75.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:06:59,330 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 144.7MB. Free memory was 86.2MB in the beginning and 86.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 846.28ms. Allocated memory is still 144.7MB. Free memory was 110.4MB in the beginning and 83.7MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.81ms. Allocated memory is still 144.7MB. Free memory was 83.3MB in the beginning and 81.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.13ms. Allocated memory is still 144.7MB. Free memory was 81.1MB in the beginning and 79.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 794.33ms. Allocated memory was 144.7MB in the beginning and 182.5MB in the end (delta: 37.7MB). Free memory was 79.0MB in the beginning and 151.1MB in the end (delta: -72.0MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5516.53ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 150.2MB in the beginning and 76.6MB in the end (delta: 73.6MB). Peak memory consumption was 111.2MB. Max. memory is 16.1GB. * Witness Printer took 7.12ms. Allocated memory is still 220.2MB. Free memory was 76.6MB in the beginning and 75.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 922]: Data race detected Data race detected The following path leads to a data race: [L917] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}] [L918] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, mutex2={2:0}] [L927] 0 pthread_t id; VAL [id={6:0}, mutex1={1:0}, mutex2={2:0}] [L928] 0 int i; VAL [i={5:0}, id={6:0}, mutex1={1:0}, mutex2={2:0}] [L929] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [arg={5:0}, i={5:0}, id={6:0}, mutex1={1:0}, mutex2={2:0}, pthread_create(&id, ((void *)0), t_fun, (void *) &i)=-1] [L931] EXPR 0 \read(i) VAL [\read(i)=-3, arg={5:0}, i={5:0}, id={6:0}, mutex1={1:0}, mutex2={2:0}] [L931] 0 i++ VAL [\read(i)=-3, arg={5:0}, i={5:0}, id={6:0}, mutex1={1:0}, mutex2={2:0}] [L920] 1 int *p = (int *) arg; VAL [arg={5:0}, arg={5:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L922] EXPR 1 \read(*p) VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L922] 1 (*p)++ VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L931] 0 i++ VAL [\read(*p)=-3, \read(i)=-3, arg={5:0}, arg={5:0}, i={5:0}, id={6:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L922] 1 (*p)++ VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L931] 0 i++ VAL [\read(*p)=-3, \read(i)=-3, arg={5:0}, arg={5:0}, i={5:0}, id={6:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L922] 1 (*p)++ VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L931] 0 i++ VAL [\read(*p)=-3, \read(i)=-3, arg={5:0}, arg={5:0}, i={5:0}, id={6:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L922] 1 (*p)++ VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L931] 0 i++ VAL [\read(*p)=-3, \read(i)=-3, arg={5:0}, arg={5:0}, i={5:0}, i++=-3, i++=25, id={6:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] [L922] 1 (*p)++ VAL [\read(*p)=-3, arg={5:0}, arg={5:0}, mutex1={1:0}, mutex2={2:0}, p={5:0}] Now there is a data race (on the heap) between C: i++ [931] and C: (*p)++ [922] - UnprovableResult [Line: 931]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 929]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 125 locations, 8 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: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 806 IncrementalHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 116 mSDtfsCounter, 806 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1680occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 2.0s InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 488 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-20 11:06:59,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84bb3cec-3cf6-4c42-abf2-2a03687c5a6b/bin/uautomizer-ug76WZFUDN/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE