./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa --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 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:12:28,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:12:28,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:12:28,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:12:28,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:12:28,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:12:28,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:12:28,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:12:28,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:12:28,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:12:28,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:12:28,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:12:28,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:12:28,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:12:28,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:12:28,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:12:28,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:12:28,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:12:28,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:12:28,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:12:28,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:12:28,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:12:28,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:12:28,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:12:28,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:12:28,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:12:28,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:12:28,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:12:28,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:12:28,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:12:28,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:12:28,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:12:28,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:12:28,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:12:28,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:12:28,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:12:28,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:12:28,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:12:28,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:12:28,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:12:28,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:12:28,865 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-12-07 01:12:28,882 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:12:28,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:12:28,882 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:12:28,882 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:12:28,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:12:28,883 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:12:28,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:12:28,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:12:28,884 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:12:28,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:12:28,884 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:12:28,884 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-07 01:12:28,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:12:28,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:12:28,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:12:28,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:12:28,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:12:28,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:12:28,885 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-12-07 01:12:28,885 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:12:28,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:12:28,885 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:12:28,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:12:28,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:12:28,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:12:28,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:12:28,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:12:28,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:12:28,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:12:28,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:12:28,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:12:28,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:12:28,887 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:12:28,887 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:12:28,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:12:28,887 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:12:28,887 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_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f [2021-12-07 01:12:29,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:12:29,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:12:29,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:12:29,096 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:12:29,097 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:12:29,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i [2021-12-07 01:12:29,148 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/data/c5cc39c4f/da49219fe2c14ec69db53669f16e41f8/FLAG4a17ee112 [2021-12-07 01:12:29,556 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:12:29,556 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i [2021-12-07 01:12:29,567 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/data/c5cc39c4f/da49219fe2c14ec69db53669f16e41f8/FLAG4a17ee112 [2021-12-07 01:12:29,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/data/c5cc39c4f/da49219fe2c14ec69db53669f16e41f8 [2021-12-07 01:12:29,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:12:29,580 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:12:29,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:12:29,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:12:29,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:12:29,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:12:29" (1/1) ... [2021-12-07 01:12:29,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198e4118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:12:29, skipping insertion in model container [2021-12-07 01:12:29,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:12:29" (1/1) ... [2021-12-07 01:12:29,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:12:29,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:12:29,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:12:29,826 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:12:29,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:12:29,880 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:12:29,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:12:29 WrapperNode [2021-12-07 01:12:29,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:12:29,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:12:29,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:12:29,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:12:29,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:12:29" (1/1) ... [2021-12-07 01:12:29,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:12:29" (1/1) ... [2021-12-07 01:12:29,912 INFO L137 Inliner]: procedures = 161, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2021-12-07 01:12:29,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:12:29,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:12:29,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:12:29,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:12:29,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:12:29" (1/1) ... [2021-12-07 01:12:29,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:12:29" (1/1) ... [2021-12-07 01:12:29,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:12:29" (1/1) ... [2021-12-07 01:12:29,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:12:29" (1/1) ... [2021-12-07 01:12:29,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:12:29" (1/1) ... [2021-12-07 01:12:29,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:12:29" (1/1) ... [2021-12-07 01:12:29,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:12:29" (1/1) ... [2021-12-07 01:12:29,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:12:29,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:12:29,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:12:29,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:12:29,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:12:29" (1/1) ... [2021-12-07 01:12:29,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:12:29,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:12:29,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:12:29,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:12:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 01:12:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:12:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-07 01:12:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:12:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:12:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-07 01:12:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-07 01:12:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:12:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:12:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:12:30,006 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-07 01:12:30,112 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:12:30,113 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:12:30,274 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:12:30,282 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:12:30,282 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 01:12:30,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:12:30 BoogieIcfgContainer [2021-12-07 01:12:30,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:12:30,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:12:30,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:12:30,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:12:30,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:12:29" (1/3) ... [2021-12-07 01:12:30,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162100d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:12:30, skipping insertion in model container [2021-12-07 01:12:30,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:12:29" (2/3) ... [2021-12-07 01:12:30,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162100d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:12:30, skipping insertion in model container [2021-12-07 01:12:30,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:12:30" (3/3) ... [2021-12-07 01:12:30,292 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_09-idxsense_rc.i [2021-12-07 01:12:30,296 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-07 01:12:30,297 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:12:30,297 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-07 01:12:30,297 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-07 01:12:30,321 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,321 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,321 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,321 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,321 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,322 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,322 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,322 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,322 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,322 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,322 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,323 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,323 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,323 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,324 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,324 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,324 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,324 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,325 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,325 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,325 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,325 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,325 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,326 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,326 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,326 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,326 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,326 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,327 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,327 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,327 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,327 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,328 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,328 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,328 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,328 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,329 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,329 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,329 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,329 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,329 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,329 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,330 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,330 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,333 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,333 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,333 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,333 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,334 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,334 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:12:30,336 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-07 01:12:30,372 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:12:30,377 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 01:12:30,378 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-07 01:12:30,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 83 transitions, 171 flow [2021-12-07 01:12:30,425 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-12-07 01:12:30,426 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-07 01:12:30,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2021-12-07 01:12:30,428 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 83 transitions, 171 flow [2021-12-07 01:12:30,433 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 82 transitions, 167 flow [2021-12-07 01:12:30,445 INFO L129 PetriNetUnfolder]: 2/45 cut-off events. [2021-12-07 01:12:30,445 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-07 01:12:30,445 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:12:30,446 INFO L254 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] [2021-12-07 01:12:30,446 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-07 01:12:30,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:12:30,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1056787452, now seen corresponding path program 1 times [2021-12-07 01:12:30,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:12:30,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199830702] [2021-12-07 01:12:30,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:30,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:12:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:30,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:12:30,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:12:30,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199830702] [2021-12-07 01:12:30,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199830702] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:12:30,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:12:30,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:12:30,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592894856] [2021-12-07 01:12:30,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:12:30,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:12:30,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:12:30,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:12:30,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:12:30,670 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 83 [2021-12-07 01:12:30,673 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 82 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2021-12-07 01:12:30,673 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:12:30,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 83 [2021-12-07 01:12:30,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:12:30,712 INFO L129 PetriNetUnfolder]: 1/85 cut-off events. [2021-12-07 01:12:30,712 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-07 01:12:30,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 85 events. 1/85 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 40. Up to 9 conditions per place. [2021-12-07 01:12:30,714 INFO L132 encePairwiseOnDemand]: 79/83 looper letters, 10 selfloop transitions, 2 changer transitions 0/85 dead transitions. [2021-12-07 01:12:30,714 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 85 transitions, 197 flow [2021-12-07 01:12:30,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:12:30,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-07 01:12:30,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions. [2021-12-07 01:12:30,725 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9518072289156626 [2021-12-07 01:12:30,726 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 237 transitions. [2021-12-07 01:12:30,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 237 transitions. [2021-12-07 01:12:30,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:12:30,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 237 transitions. [2021-12-07 01:12:30,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2021-12-07 01:12:30,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2021-12-07 01:12:30,739 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2021-12-07 01:12:30,741 INFO L186 Difference]: Start difference. First operand has 84 places, 82 transitions, 167 flow. Second operand 3 states and 237 transitions. [2021-12-07 01:12:30,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 85 transitions, 197 flow [2021-12-07 01:12:30,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 85 transitions, 196 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-07 01:12:30,748 INFO L242 Difference]: Finished difference. Result has 86 places, 82 transitions, 176 flow [2021-12-07 01:12:30,750 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=86, PETRI_TRANSITIONS=82} [2021-12-07 01:12:30,753 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 2 predicate places. [2021-12-07 01:12:30,753 INFO L470 AbstractCegarLoop]: Abstraction has has 86 places, 82 transitions, 176 flow [2021-12-07 01:12:30,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2021-12-07 01:12:30,753 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:12:30,753 INFO L254 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] [2021-12-07 01:12:30,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:12:30,754 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-07 01:12:30,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:12:30,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1222323389, now seen corresponding path program 1 times [2021-12-07 01:12:30,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:12:30,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872971506] [2021-12-07 01:12:30,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:30,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:12:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:30,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:12:30,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:12:30,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872971506] [2021-12-07 01:12:30,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872971506] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:12:30,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631243449] [2021-12-07 01:12:30,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:30,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:12:30,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:12:30,833 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:12:30,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 01:12:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:30,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 01:12:30,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:12:30,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:12:30,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:12:31,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:12:31,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631243449] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:12:31,031 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:12:31,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-12-07 01:12:31,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146107742] [2021-12-07 01:12:31,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:12:31,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:12:31,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:12:31,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:12:31,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:12:31,035 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 83 [2021-12-07 01:12:31,037 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 82 transitions, 176 flow. Second operand has 10 states, 10 states have (on average 75.1) internal successors, (751), 10 states have internal predecessors, (751), 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) [2021-12-07 01:12:31,037 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:12:31,037 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 83 [2021-12-07 01:12:31,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:12:31,096 INFO L129 PetriNetUnfolder]: 1/92 cut-off events. [2021-12-07 01:12:31,096 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-07 01:12:31,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 92 events. 1/92 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 2/90 useless extension candidates. Maximal degree in co-relation 92. Up to 6 conditions per place. [2021-12-07 01:12:31,097 INFO L132 encePairwiseOnDemand]: 77/83 looper letters, 11 selfloop transitions, 9 changer transitions 0/92 dead transitions. [2021-12-07 01:12:31,097 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 92 transitions, 238 flow [2021-12-07 01:12:31,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:12:31,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-07 01:12:31,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 679 transitions. [2021-12-07 01:12:31,103 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9089692101740294 [2021-12-07 01:12:31,103 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 679 transitions. [2021-12-07 01:12:31,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 679 transitions. [2021-12-07 01:12:31,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:12:31,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 679 transitions. [2021-12-07 01:12:31,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.44444444444444) internal successors, (679), 9 states have internal predecessors, (679), 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) [2021-12-07 01:12:31,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 83.0) internal successors, (830), 10 states have internal predecessors, (830), 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) [2021-12-07 01:12:31,115 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 83.0) internal successors, (830), 10 states have internal predecessors, (830), 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) [2021-12-07 01:12:31,115 INFO L186 Difference]: Start difference. First operand has 86 places, 82 transitions, 176 flow. Second operand 9 states and 679 transitions. [2021-12-07 01:12:31,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 92 transitions, 238 flow [2021-12-07 01:12:31,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 92 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-07 01:12:31,119 INFO L242 Difference]: Finished difference. Result has 96 places, 88 transitions, 224 flow [2021-12-07 01:12:31,119 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=224, PETRI_PLACES=96, PETRI_TRANSITIONS=88} [2021-12-07 01:12:31,120 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 12 predicate places. [2021-12-07 01:12:31,120 INFO L470 AbstractCegarLoop]: Abstraction has has 96 places, 88 transitions, 224 flow [2021-12-07 01:12:31,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 75.1) internal successors, (751), 10 states have internal predecessors, (751), 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) [2021-12-07 01:12:31,121 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:12:31,121 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:12:31,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:12:31,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-07 01:12:31,323 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-07 01:12:31,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:12:31,325 INFO L85 PathProgramCache]: Analyzing trace with hash 563003363, now seen corresponding path program 2 times [2021-12-07 01:12:31,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:12:31,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620465548] [2021-12-07 01:12:31,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:31,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:12:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:31,522 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:12:31,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:12:31,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620465548] [2021-12-07 01:12:31,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620465548] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:12:31,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408600431] [2021-12-07 01:12:31,523 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 01:12:31,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:12:31,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:12:31,524 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:12:31,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 01:12:31,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-07 01:12:31,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:12:31,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-07 01:12:31,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:12:31,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 01:12:31,665 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-07 01:12:31,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 01:12:31,692 INFO L354 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2021-12-07 01:12:31,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 34 [2021-12-07 01:12:31,731 INFO L354 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2021-12-07 01:12:31,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 46 [2021-12-07 01:12:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-07 01:12:31,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:12:31,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408600431] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:12:31,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:12:31,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2021-12-07 01:12:31,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623776908] [2021-12-07 01:12:31,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:12:31,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:12:31,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:12:31,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:12:31,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:12:31,759 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 83 [2021-12-07 01:12:31,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 88 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 52.5) internal successors, (315), 6 states have internal predecessors, (315), 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) [2021-12-07 01:12:31,760 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:12:31,760 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 83 [2021-12-07 01:12:31,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:12:32,154 INFO L129 PetriNetUnfolder]: 332/1076 cut-off events. [2021-12-07 01:12:32,154 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-12-07 01:12:32,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1824 conditions, 1076 events. 332/1076 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6842 event pairs, 77 based on Foata normal form. 0/973 useless extension candidates. Maximal degree in co-relation 1763. Up to 288 conditions per place. [2021-12-07 01:12:32,165 INFO L132 encePairwiseOnDemand]: 61/83 looper letters, 99 selfloop transitions, 42 changer transitions 0/198 dead transitions. [2021-12-07 01:12:32,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 198 transitions, 726 flow [2021-12-07 01:12:32,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:12:32,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-07 01:12:32,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 449 transitions. [2021-12-07 01:12:32,168 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9016064257028112 [2021-12-07 01:12:32,168 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 449 transitions. [2021-12-07 01:12:32,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 449 transitions. [2021-12-07 01:12:32,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:12:32,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 449 transitions. [2021-12-07 01:12:32,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 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) [2021-12-07 01:12:32,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 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) [2021-12-07 01:12:32,173 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 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) [2021-12-07 01:12:32,173 INFO L186 Difference]: Start difference. First operand has 96 places, 88 transitions, 224 flow. Second operand 6 states and 449 transitions. [2021-12-07 01:12:32,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 198 transitions, 726 flow [2021-12-07 01:12:32,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 198 transitions, 720 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-12-07 01:12:32,180 INFO L242 Difference]: Finished difference. Result has 105 places, 134 transitions, 534 flow [2021-12-07 01:12:32,180 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=534, PETRI_PLACES=105, PETRI_TRANSITIONS=134} [2021-12-07 01:12:32,181 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 21 predicate places. [2021-12-07 01:12:32,181 INFO L470 AbstractCegarLoop]: Abstraction has has 105 places, 134 transitions, 534 flow [2021-12-07 01:12:32,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.5) internal successors, (315), 6 states have internal predecessors, (315), 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) [2021-12-07 01:12:32,182 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:12:32,182 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:12:32,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-07 01:12:32,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:12:32,383 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-07 01:12:32,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:12:32,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1709219736, now seen corresponding path program 1 times [2021-12-07 01:12:32,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:12:32,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902636999] [2021-12-07 01:12:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:32,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:12:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:32,466 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:12:32,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:12:32,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902636999] [2021-12-07 01:12:32,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902636999] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:12:32,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343246561] [2021-12-07 01:12:32,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:32,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:12:32,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:12:32,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:12:32,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 01:12:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:32,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 01:12:32,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:12:32,589 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:12:32,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:12:32,672 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:12:32,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343246561] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:12:32,673 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:12:32,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-12-07 01:12:32,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869474166] [2021-12-07 01:12:32,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:12:32,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-07 01:12:32,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:12:32,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-07 01:12:32,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-12-07 01:12:32,676 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 83 [2021-12-07 01:12:32,678 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 134 transitions, 534 flow. Second operand has 18 states, 18 states have (on average 75.27777777777777) internal successors, (1355), 18 states have internal predecessors, (1355), 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) [2021-12-07 01:12:32,678 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:12:32,678 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 83 [2021-12-07 01:12:32,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:12:32,854 INFO L129 PetriNetUnfolder]: 112/668 cut-off events. [2021-12-07 01:12:32,855 INFO L130 PetriNetUnfolder]: For 113/128 co-relation queries the response was YES. [2021-12-07 01:12:32,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1248 conditions, 668 events. 112/668 cut-off events. For 113/128 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4132 event pairs, 30 based on Foata normal form. 4/659 useless extension candidates. Maximal degree in co-relation 1105. Up to 117 conditions per place. [2021-12-07 01:12:32,859 INFO L132 encePairwiseOnDemand]: 77/83 looper letters, 19 selfloop transitions, 21 changer transitions 0/158 dead transitions. [2021-12-07 01:12:32,859 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 158 transitions, 714 flow [2021-12-07 01:12:32,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-07 01:12:32,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-12-07 01:12:32,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1577 transitions. [2021-12-07 01:12:32,863 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2021-12-07 01:12:32,863 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1577 transitions. [2021-12-07 01:12:32,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1577 transitions. [2021-12-07 01:12:32,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:12:32,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1577 transitions. [2021-12-07 01:12:32,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 75.0952380952381) internal successors, (1577), 21 states have internal predecessors, (1577), 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) [2021-12-07 01:12:32,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 83.0) internal successors, (1826), 22 states have internal predecessors, (1826), 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) [2021-12-07 01:12:32,872 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 83.0) internal successors, (1826), 22 states have internal predecessors, (1826), 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) [2021-12-07 01:12:32,872 INFO L186 Difference]: Start difference. First operand has 105 places, 134 transitions, 534 flow. Second operand 21 states and 1577 transitions. [2021-12-07 01:12:32,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 158 transitions, 714 flow [2021-12-07 01:12:32,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 158 transitions, 714 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-07 01:12:32,879 INFO L242 Difference]: Finished difference. Result has 130 places, 147 transitions, 664 flow [2021-12-07 01:12:32,879 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=664, PETRI_PLACES=130, PETRI_TRANSITIONS=147} [2021-12-07 01:12:32,880 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 46 predicate places. [2021-12-07 01:12:32,880 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 147 transitions, 664 flow [2021-12-07 01:12:32,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 75.27777777777777) internal successors, (1355), 18 states have internal predecessors, (1355), 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) [2021-12-07 01:12:32,880 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:12:32,881 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:12:32,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-07 01:12:33,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:12:33,081 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-07 01:12:33,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:12:33,082 INFO L85 PathProgramCache]: Analyzing trace with hash -731766360, now seen corresponding path program 2 times [2021-12-07 01:12:33,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:12:33,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173321674] [2021-12-07 01:12:33,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:33,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:12:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:33,203 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:12:33,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:12:33,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173321674] [2021-12-07 01:12:33,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173321674] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:12:33,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288565063] [2021-12-07 01:12:33,203 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 01:12:33,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:12:33,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:12:33,204 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:12:33,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-07 01:12:33,251 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-07 01:12:33,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:12:33,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-07 01:12:33,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:12:33,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-07 01:12:33,331 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-07 01:12:33,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-07 01:12:33,362 INFO L354 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2021-12-07 01:12:33,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 34 [2021-12-07 01:12:33,401 INFO L354 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2021-12-07 01:12:33,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 46 [2021-12-07 01:12:33,418 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-07 01:12:33,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:12:33,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288565063] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:12:33,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:12:33,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2021-12-07 01:12:33,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180080200] [2021-12-07 01:12:33,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:12:33,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:12:33,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:12:33,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:12:33,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-12-07 01:12:33,420 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 83 [2021-12-07 01:12:33,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 147 transitions, 664 flow. Second operand has 6 states, 6 states have (on average 51.666666666666664) internal successors, (310), 6 states have internal predecessors, (310), 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) [2021-12-07 01:12:33,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:12:33,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 83 [2021-12-07 01:12:33,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:12:33,788 INFO L129 PetriNetUnfolder]: 502/1486 cut-off events. [2021-12-07 01:12:33,788 INFO L130 PetriNetUnfolder]: For 626/628 co-relation queries the response was YES. [2021-12-07 01:12:33,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3769 conditions, 1486 events. 502/1486 cut-off events. For 626/628 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9826 event pairs, 152 based on Foata normal form. 25/1509 useless extension candidates. Maximal degree in co-relation 3624. Up to 717 conditions per place. [2021-12-07 01:12:33,799 INFO L132 encePairwiseOnDemand]: 66/83 looper letters, 114 selfloop transitions, 53 changer transitions 3/238 dead transitions. [2021-12-07 01:12:33,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 238 transitions, 1380 flow [2021-12-07 01:12:33,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:12:33,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-07 01:12:33,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 404 transitions. [2021-12-07 01:12:33,801 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8112449799196787 [2021-12-07 01:12:33,801 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 404 transitions. [2021-12-07 01:12:33,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 404 transitions. [2021-12-07 01:12:33,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:12:33,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 404 transitions. [2021-12-07 01:12:33,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 67.33333333333333) internal successors, (404), 6 states have internal predecessors, (404), 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) [2021-12-07 01:12:33,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 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) [2021-12-07 01:12:33,804 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 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) [2021-12-07 01:12:33,804 INFO L186 Difference]: Start difference. First operand has 130 places, 147 transitions, 664 flow. Second operand 6 states and 404 transitions. [2021-12-07 01:12:33,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 238 transitions, 1380 flow [2021-12-07 01:12:33,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 238 transitions, 1356 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-12-07 01:12:33,812 INFO L242 Difference]: Finished difference. Result has 134 places, 198 transitions, 1146 flow [2021-12-07 01:12:33,812 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1146, PETRI_PLACES=134, PETRI_TRANSITIONS=198} [2021-12-07 01:12:33,812 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 50 predicate places. [2021-12-07 01:12:33,813 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 198 transitions, 1146 flow [2021-12-07 01:12:33,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.666666666666664) internal successors, (310), 6 states have internal predecessors, (310), 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) [2021-12-07 01:12:33,813 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:12:33,813 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:12:33,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-07 01:12:34,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:12:34,015 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-07 01:12:34,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:12:34,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1750930688, now seen corresponding path program 1 times [2021-12-07 01:12:34,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:12:34,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253412140] [2021-12-07 01:12:34,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:34,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:12:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:34,243 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:12:34,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:12:34,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253412140] [2021-12-07 01:12:34,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253412140] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:12:34,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589994221] [2021-12-07 01:12:34,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:34,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:12:34,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:12:34,245 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:12:34,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-07 01:12:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:34,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-07 01:12:34,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:12:34,397 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:12:34,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:12:34,513 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:12:34,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589994221] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:12:34,514 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:12:34,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2021-12-07 01:12:34,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298287783] [2021-12-07 01:12:34,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:12:34,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-07 01:12:34,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:12:34,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-07 01:12:34,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-12-07 01:12:34,519 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 83 [2021-12-07 01:12:34,520 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 198 transitions, 1146 flow. Second operand has 23 states, 23 states have (on average 75.43478260869566) internal successors, (1735), 23 states have internal predecessors, (1735), 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) [2021-12-07 01:12:34,520 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:12:34,520 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 83 [2021-12-07 01:12:34,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:12:34,784 INFO L129 PetriNetUnfolder]: 221/1018 cut-off events. [2021-12-07 01:12:34,784 INFO L130 PetriNetUnfolder]: For 921/952 co-relation queries the response was YES. [2021-12-07 01:12:34,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2602 conditions, 1018 events. 221/1018 cut-off events. For 921/952 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 6863 event pairs, 31 based on Foata normal form. 11/1018 useless extension candidates. Maximal degree in co-relation 2368. Up to 203 conditions per place. [2021-12-07 01:12:34,798 INFO L132 encePairwiseOnDemand]: 77/83 looper letters, 25 selfloop transitions, 30 changer transitions 0/224 dead transitions. [2021-12-07 01:12:34,798 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 224 transitions, 1396 flow [2021-12-07 01:12:34,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-07 01:12:34,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-12-07 01:12:34,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2248 transitions. [2021-12-07 01:12:34,803 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9028112449799197 [2021-12-07 01:12:34,803 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2248 transitions. [2021-12-07 01:12:34,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2248 transitions. [2021-12-07 01:12:34,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:12:34,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2248 transitions. [2021-12-07 01:12:34,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 74.93333333333334) internal successors, (2248), 30 states have internal predecessors, (2248), 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) [2021-12-07 01:12:34,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 83.0) internal successors, (2573), 31 states have internal predecessors, (2573), 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) [2021-12-07 01:12:34,815 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 83.0) internal successors, (2573), 31 states have internal predecessors, (2573), 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) [2021-12-07 01:12:34,815 INFO L186 Difference]: Start difference. First operand has 134 places, 198 transitions, 1146 flow. Second operand 30 states and 2248 transitions. [2021-12-07 01:12:34,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 224 transitions, 1396 flow [2021-12-07 01:12:34,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 224 transitions, 1388 flow, removed 4 selfloop flow, removed 0 redundant places. [2021-12-07 01:12:34,824 INFO L242 Difference]: Finished difference. Result has 167 places, 208 transitions, 1290 flow [2021-12-07 01:12:34,825 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=1138, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1290, PETRI_PLACES=167, PETRI_TRANSITIONS=208} [2021-12-07 01:12:34,825 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 83 predicate places. [2021-12-07 01:12:34,825 INFO L470 AbstractCegarLoop]: Abstraction has has 167 places, 208 transitions, 1290 flow [2021-12-07 01:12:34,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 75.43478260869566) internal successors, (1735), 23 states have internal predecessors, (1735), 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) [2021-12-07 01:12:34,826 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:12:34,826 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:12:34,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-07 01:12:35,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:12:35,027 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-07 01:12:35,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:12:35,028 INFO L85 PathProgramCache]: Analyzing trace with hash -258743201, now seen corresponding path program 2 times [2021-12-07 01:12:35,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:12:35,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290053787] [2021-12-07 01:12:35,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:35,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:12:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:12:35,116 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-07 01:12:35,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:12:35,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290053787] [2021-12-07 01:12:35,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290053787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:12:35,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:12:35,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:12:35,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536048589] [2021-12-07 01:12:35,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:12:35,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:12:35,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:12:35,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:12:35,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:12:35,119 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 83 [2021-12-07 01:12:35,119 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 208 transitions, 1290 flow. Second operand has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 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) [2021-12-07 01:12:35,120 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:12:35,120 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 83 [2021-12-07 01:12:35,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:12:35,583 INFO L129 PetriNetUnfolder]: 612/1805 cut-off events. [2021-12-07 01:12:35,583 INFO L130 PetriNetUnfolder]: For 2123/2126 co-relation queries the response was YES. [2021-12-07 01:12:35,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5717 conditions, 1805 events. 612/1805 cut-off events. For 2123/2126 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 12505 event pairs, 163 based on Foata normal form. 28/1828 useless extension candidates. Maximal degree in co-relation 5489. Up to 909 conditions per place. [2021-12-07 01:12:35,613 INFO L132 encePairwiseOnDemand]: 66/83 looper letters, 134 selfloop transitions, 58 changer transitions 36/308 dead transitions. [2021-12-07 01:12:35,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 308 transitions, 2302 flow [2021-12-07 01:12:35,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:12:35,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-07 01:12:35,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 399 transitions. [2021-12-07 01:12:35,616 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8012048192771084 [2021-12-07 01:12:35,616 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 399 transitions. [2021-12-07 01:12:35,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 399 transitions. [2021-12-07 01:12:35,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:12:35,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 399 transitions. [2021-12-07 01:12:35,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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) [2021-12-07 01:12:35,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 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) [2021-12-07 01:12:35,619 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 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) [2021-12-07 01:12:35,620 INFO L186 Difference]: Start difference. First operand has 167 places, 208 transitions, 1290 flow. Second operand 6 states and 399 transitions. [2021-12-07 01:12:35,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 308 transitions, 2302 flow [2021-12-07 01:12:35,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 308 transitions, 2256 flow, removed 5 selfloop flow, removed 18 redundant places. [2021-12-07 01:12:35,638 INFO L242 Difference]: Finished difference. Result has 158 places, 235 transitions, 1652 flow [2021-12-07 01:12:35,639 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=1244, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1652, PETRI_PLACES=158, PETRI_TRANSITIONS=235} [2021-12-07 01:12:35,639 INFO L334 CegarLoopForPetriNet]: 84 programPoint places, 74 predicate places. [2021-12-07 01:12:35,640 INFO L470 AbstractCegarLoop]: Abstraction has has 158 places, 235 transitions, 1652 flow [2021-12-07 01:12:35,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 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) [2021-12-07 01:12:35,640 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:12:35,640 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:12:35,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 01:12:35,640 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-07 01:12:35,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:12:35,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1964910643, now seen corresponding path program 1 times [2021-12-07 01:12:35,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:12:35,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055499314] [2021-12-07 01:12:35,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:12:35,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:12:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:12:35,679 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:12:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:12:35,734 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:12:35,734 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-07 01:12:35,735 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2021-12-07 01:12:35,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2021-12-07 01:12:35,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 7 remaining) [2021-12-07 01:12:35,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2021-12-07 01:12:35,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2021-12-07 01:12:35,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2021-12-07 01:12:35,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2021-12-07 01:12:35,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 01:12:35,741 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1] [2021-12-07 01:12:35,747 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-07 01:12:35,747 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 01:12:35,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:12:35 BasicIcfg [2021-12-07 01:12:35,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 01:12:35,797 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 01:12:35,797 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 01:12:35,797 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 01:12:35,798 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:12:30" (3/4) ... [2021-12-07 01:12:35,800 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-07 01:12:35,800 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 01:12:35,801 INFO L158 Benchmark]: Toolchain (without parser) took 6220.95ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 68.9MB in the beginning and 90.3MB in the end (delta: -21.5MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2021-12-07 01:12:35,801 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 107.0MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:12:35,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.41ms. Allocated memory is still 107.0MB. Free memory was 68.7MB in the beginning and 73.9MB in the end (delta: -5.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-07 01:12:35,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.48ms. Allocated memory is still 107.0MB. Free memory was 73.9MB in the beginning and 71.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:12:35,802 INFO L158 Benchmark]: Boogie Preprocessor took 29.27ms. Allocated memory is still 107.0MB. Free memory was 71.8MB in the beginning and 70.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:12:35,802 INFO L158 Benchmark]: RCFGBuilder took 341.45ms. Allocated memory is still 107.0MB. Free memory was 70.2MB in the beginning and 57.2MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-07 01:12:35,803 INFO L158 Benchmark]: TraceAbstraction took 5511.12ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 56.7MB in the beginning and 90.3MB in the end (delta: -33.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2021-12-07 01:12:35,803 INFO L158 Benchmark]: Witness Printer took 3.06ms. Allocated memory is still 157.3MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:12:35,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 107.0MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.41ms. Allocated memory is still 107.0MB. Free memory was 68.7MB in the beginning and 73.9MB in the end (delta: -5.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.48ms. Allocated memory is still 107.0MB. Free memory was 73.9MB in the beginning and 71.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.27ms. Allocated memory is still 107.0MB. Free memory was 71.8MB in the beginning and 70.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 341.45ms. Allocated memory is still 107.0MB. Free memory was 70.2MB in the beginning and 57.2MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5511.12ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 56.7MB in the beginning and 90.3MB in the end (delta: -33.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Witness Printer took 3.06ms. Allocated memory is still 157.3MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int data[10]; VAL [data={1:0}] [L680] 0 pthread_mutex_t m[10]; VAL [data={1:0}, m={2:0}] [L688] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=0, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=1, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=2, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=3, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=4, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=5, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=6, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=7, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=8, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=9, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L688] COND FALSE 0 !(i < 10) VAL [data={1:0}, i=10, m={2:0}] [L690] 0 pthread_t id; VAL [data={1:0}, i=10, id={3:0}, m={2:0}] [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i=10, id={3:0}, m={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L693] EXPR 0 data[4] VAL [arg={0:0}, data={1:0}, data[4]=0, i=10, id={3:0}, m={2:0}] [L683] EXPR 1 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L683] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]++=0, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, data[4]++=0, i=10, id={3:0}, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, data[4]++=241, data[4]++=0, i=10, id={3:0}, m={2:0}] Now there is a data race (on the heap) between C: data[4]++ [683] and C: data[4]++ [693] - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: 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: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 683]: 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, 109 locations, 7 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: 5.4s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 174 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 174 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 142 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 867 IncrementalHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 142 mSolverCounterUnsat, 89 mSDtfsCounter, 867 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 533 GetRequests, 418 SyntacticMatches, 1 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1652occurred in iteration=7, InterpolantAutomatonStates: 81, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 773 NumberOfCodeBlocks, 723 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 826 ConstructedInterpolants, 0 QuantifiedInterpolants, 1547 SizeOfPredicates, 22 NumberOfNonLiveVariables, 686 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 15 InterpolantComputations, 4 PerfectInterpolantSequences, 365/888 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 could not prove your program: unable to determine feasibility of some traces [2021-12-07 01:12:35,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76f4d8a-e462-45f4-90f2-7543cd12658f/bin/uautomizer-DrprNOufMa/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