/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-BasicCegarLoop.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_09-idxsense_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-10 02:40:24,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 02:40:24,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 02:40:24,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 02:40:24,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 02:40:24,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 02:40:24,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 02:40:24,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 02:40:24,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 02:40:24,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 02:40:24,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 02:40:24,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 02:40:24,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 02:40:24,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 02:40:24,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 02:40:24,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 02:40:24,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 02:40:24,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 02:40:24,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 02:40:24,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 02:40:24,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 02:40:24,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 02:40:24,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 02:40:24,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 02:40:24,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-10 02:40:24,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-10 02:40:24,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-10 02:40:24,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-10 02:40:24,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-10 02:40:24,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-10 02:40:24,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 02:40:24,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 02:40:24,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 02:40:24,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 02:40:24,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 02:40:24,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 02:40:24,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 02:40:24,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 02:40:24,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 02:40:24,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 02:40:24,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 02:40:24,936 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-BasicCegarLoop.epf [2022-02-10 02:40:24,958 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 02:40:24,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 02:40:24,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 02:40:24,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 02:40:24,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 02:40:24,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 02:40:24,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 02:40:24,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 02:40:24,970 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 02:40:24,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 02:40:24,971 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 02:40:24,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 02:40:24,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 02:40:24,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 02:40:24,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 02:40:24,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 02:40:24,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 02:40:24,971 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 02:40:24,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 02:40:24,971 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 02:40:24,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 02:40:24,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 02:40:24,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 02:40:24,972 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 02:40:24,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 02:40:24,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 02:40:24,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 02:40:24,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 02:40:24,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 02:40:24,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 02:40:24,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 02:40:24,973 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 02:40:24,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 02:40:24,973 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-10 02:40:24,973 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-02-10 02:40:25,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 02:40:25,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 02:40:25,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 02:40:25,251 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 02:40:25,252 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 02:40:25,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_09-idxsense_rc.i [2022-02-10 02:40:25,338 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2ca175db/cb16e2e1be534c1baa4fa26c7bc21be7/FLAGb8ca26cd5 [2022-02-10 02:40:25,767 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 02:40:25,767 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_09-idxsense_rc.i [2022-02-10 02:40:25,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2ca175db/cb16e2e1be534c1baa4fa26c7bc21be7/FLAGb8ca26cd5 [2022-02-10 02:40:26,133 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2ca175db/cb16e2e1be534c1baa4fa26c7bc21be7 [2022-02-10 02:40:26,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 02:40:26,136 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 02:40:26,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 02:40:26,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 02:40:26,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 02:40:26,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 02:40:26" (1/1) ... [2022-02-10 02:40:26,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a64917f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:40:26, skipping insertion in model container [2022-02-10 02:40:26,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 02:40:26" (1/1) ... [2022-02-10 02:40:26,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 02:40:26,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 02:40:26,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 02:40:26,503 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 02:40:26,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 02:40:26,584 INFO L208 MainTranslator]: Completed translation [2022-02-10 02:40:26,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:40:26 WrapperNode [2022-02-10 02:40:26,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 02:40:26,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 02:40:26,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 02:40:26,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 02:40:26,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:40:26" (1/1) ... [2022-02-10 02:40:26,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:40:26" (1/1) ... [2022-02-10 02:40:26,640 INFO L137 Inliner]: procedures = 161, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-02-10 02:40:26,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 02:40:26,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 02:40:26,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 02:40:26,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 02:40:26,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:40:26" (1/1) ... [2022-02-10 02:40:26,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:40:26" (1/1) ... [2022-02-10 02:40:26,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:40:26" (1/1) ... [2022-02-10 02:40:26,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:40:26" (1/1) ... [2022-02-10 02:40:26,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:40:26" (1/1) ... [2022-02-10 02:40:26,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:40:26" (1/1) ... [2022-02-10 02:40:26,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:40:26" (1/1) ... [2022-02-10 02:40:26,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 02:40:26,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 02:40:26,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 02:40:26,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 02:40:26,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:40:26" (1/1) ... [2022-02-10 02:40:26,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 02:40:26,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:40:26,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 02:40:26,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 02:40:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 02:40:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 02:40:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-10 02:40:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 02:40:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 02:40:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-10 02:40:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-10 02:40:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 02:40:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 02:40:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 02:40:26,756 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 02:40:26,900 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 02:40:26,902 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 02:40:27,088 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 02:40:27,093 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 02:40:27,093 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-10 02:40:27,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 02:40:27 BoogieIcfgContainer [2022-02-10 02:40:27,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 02:40:27,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 02:40:27,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 02:40:27,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 02:40:27,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 02:40:26" (1/3) ... [2022-02-10 02:40:27,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa6cda1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 02:40:27, skipping insertion in model container [2022-02-10 02:40:27,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:40:26" (2/3) ... [2022-02-10 02:40:27,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa6cda1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 02:40:27, skipping insertion in model container [2022-02-10 02:40:27,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 02:40:27" (3/3) ... [2022-02-10 02:40:27,102 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_09-idxsense_rc.i [2022-02-10 02:40:27,105 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 02:40:27,105 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 02:40:27,105 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-02-10 02:40:27,105 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 02:40:27,147 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,147 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,148 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,148 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,150 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,150 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,150 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,151 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,154 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,154 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,154 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,166 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,166 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,166 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,169 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,169 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,170 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,171 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,171 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,172 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,172 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,172 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,172 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,172 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,172 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,172 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,176 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,176 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,176 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,176 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,176 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,176 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,176 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,176 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:40:27,178 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-10 02:40:27,226 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 02:40:27,234 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=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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 [2022-02-10 02:40:27,234 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-02-10 02:40:27,245 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 83 transitions, 171 flow [2022-02-10 02:40:27,306 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 754 states, 746 states have (on average 1.9142091152815013) internal successors, (1428), 753 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:41:19,566 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1728313 transitions and produced 958985 states. [2022-02-10 02:41:31,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 958985 states, 836857 states have (on average 1.4583053018616083) internal successors, (1220393), 958984 states have internal predecessors, (1220393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:41:32,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 02:41:32,030 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:41:32,030 INFO L514 BasicCegarLoop]: 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] [2022-02-10 02:41:32,031 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-02-10 02:41:32,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:41:32,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1730628035, now seen corresponding path program 1 times [2022-02-10 02:41:32,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:41:32,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058443438] [2022-02-10 02:41:32,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:41:32,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:41:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:41:32,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:41:32,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:41:32,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058443438] [2022-02-10 02:41:32,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058443438] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:41:32,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 02:41:32,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 02:41:32,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892128537] [2022-02-10 02:41:32,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:41:32,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 02:41:32,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:41:32,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 02:41:32,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 02:41:49,301 INFO L87 Difference]: Start difference. First operand has 958985 states, 836857 states have (on average 1.4583053018616083) internal successors, (1220393), 958984 states have internal predecessors, (1220393), 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) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:05,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:42:05,762 INFO L93 Difference]: Finished difference Result 479509 states and 610213 transitions. [2022-02-10 02:42:05,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 02:42:05,765 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) Word has length 30 [2022-02-10 02:42:05,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:42:08,868 INFO L225 Difference]: With dead ends: 479509 [2022-02-10 02:42:08,868 INFO L226 Difference]: Without dead ends: 329077 [2022-02-10 02:42:08,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 02:42:08,884 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 02:42:08,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 02:42:09,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329077 states. [2022-02-10 02:42:12,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329077 to 842. [2022-02-10 02:42:12,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 802 states have (on average 1.5099750623441397) internal successors, (1211), 841 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:12,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1211 transitions. [2022-02-10 02:42:12,234 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1211 transitions. Word has length 30 [2022-02-10 02:42:12,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:42:12,234 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1211 transitions. [2022-02-10 02:42:12,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:12,235 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1211 transitions. [2022-02-10 02:42:12,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-10 02:42:12,235 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:42:12,235 INFO L514 BasicCegarLoop]: 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] [2022-02-10 02:42:12,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 02:42:12,236 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-02-10 02:42:12,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:42:12,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1056787452, now seen corresponding path program 1 times [2022-02-10 02:42:12,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:42:12,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295823878] [2022-02-10 02:42:12,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:42:12,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:42:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:42:12,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:42:12,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:42:12,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295823878] [2022-02-10 02:42:12,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295823878] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:42:12,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 02:42:12,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 02:42:12,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052010627] [2022-02-10 02:42:12,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:42:12,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 02:42:12,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:42:12,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 02:42:12,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 02:42:12,293 INFO L87 Difference]: Start difference. First operand 842 states and 1211 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:12,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:42:12,319 INFO L93 Difference]: Finished difference Result 846 states and 1215 transitions. [2022-02-10 02:42:12,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 02:42:12,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) Word has length 30 [2022-02-10 02:42:12,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:42:12,327 INFO L225 Difference]: With dead ends: 846 [2022-02-10 02:42:12,327 INFO L226 Difference]: Without dead ends: 846 [2022-02-10 02:42:12,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 02:42:12,329 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 3 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 02:42:12,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 150 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 02:42:12,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2022-02-10 02:42:12,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 843. [2022-02-10 02:42:12,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 803 states have (on average 1.5093399750933998) internal successors, (1212), 842 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:12,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1212 transitions. [2022-02-10 02:42:12,346 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1212 transitions. Word has length 30 [2022-02-10 02:42:12,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:42:12,347 INFO L470 AbstractCegarLoop]: Abstraction has 843 states and 1212 transitions. [2022-02-10 02:42:12,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:12,348 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1212 transitions. [2022-02-10 02:42:12,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-02-10 02:42:12,350 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:42:12,350 INFO L514 BasicCegarLoop]: 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] [2022-02-10 02:42:12,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 02:42:12,350 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-02-10 02:42:12,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:42:12,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1222323389, now seen corresponding path program 1 times [2022-02-10 02:42:12,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:42:12,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395683493] [2022-02-10 02:42:12,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:42:12,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:42:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:42:12,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:42:12,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:42:12,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395683493] [2022-02-10 02:42:12,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395683493] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:42:12,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732095345] [2022-02-10 02:42:12,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:42:12,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:42:12,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:42:12,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:42:12,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 02:42:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:42:12,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 02:42:12,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:42:12,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:42:12,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:42:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:42:12,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732095345] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 02:42:12,683 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 02:42:12,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 02:42:12,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247528111] [2022-02-10 02:42:12,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 02:42:12,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 02:42:12,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:42:12,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 02:42:12,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 02:42:12,684 INFO L87 Difference]: Start difference. First operand 843 states and 1212 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:12,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:42:12,735 INFO L93 Difference]: Finished difference Result 853 states and 1222 transitions. [2022-02-10 02:42:12,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 02:42:12,735 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 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) Word has length 35 [2022-02-10 02:42:12,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:42:12,737 INFO L225 Difference]: With dead ends: 853 [2022-02-10 02:42:12,737 INFO L226 Difference]: Without dead ends: 853 [2022-02-10 02:42:12,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-10 02:42:12,738 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 15 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 02:42:12,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 444 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 02:42:12,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-02-10 02:42:12,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 853. [2022-02-10 02:42:12,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 813 states have (on average 1.5030750307503076) internal successors, (1222), 852 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:12,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1222 transitions. [2022-02-10 02:42:12,748 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1222 transitions. Word has length 35 [2022-02-10 02:42:12,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:42:12,748 INFO L470 AbstractCegarLoop]: Abstraction has 853 states and 1222 transitions. [2022-02-10 02:42:12,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:12,749 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1222 transitions. [2022-02-10 02:42:12,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-02-10 02:42:12,749 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:42:12,749 INFO L514 BasicCegarLoop]: 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] [2022-02-10 02:42:12,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-10 02:42:12,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:42:12,968 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-02-10 02:42:12,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:42:12,969 INFO L85 PathProgramCache]: Analyzing trace with hash 563003363, now seen corresponding path program 2 times [2022-02-10 02:42:12,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:42:12,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121038502] [2022-02-10 02:42:12,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:42:12,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:42:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:42:13,084 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:42:13,084 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:42:13,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121038502] [2022-02-10 02:42:13,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121038502] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:42:13,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95441888] [2022-02-10 02:42:13,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 02:42:13,088 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:42:13,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:42:13,089 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:42:13,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 02:42:13,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-02-10 02:42:13,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 02:42:13,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 17 conjunts are in the unsatisfiable core [2022-02-10 02:42:13,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:42:13,231 INFO L387 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 [2022-02-10 02:42:13,259 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-10 02:42:13,260 INFO L387 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 [2022-02-10 02:42:13,298 INFO L353 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-10 02:42:13,298 INFO L387 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 [2022-02-10 02:42:13,340 INFO L353 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2022-02-10 02:42:13,340 INFO L387 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 [2022-02-10 02:42:13,359 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-10 02:42:13,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 02:42:13,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95441888] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:42:13,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 02:42:13,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-02-10 02:42:13,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543832736] [2022-02-10 02:42:13,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:42:13,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 02:42:13,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:42:13,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 02:42:13,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-02-10 02:42:13,361 INFO L87 Difference]: Start difference. First operand 853 states and 1222 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:13,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:42:13,552 INFO L93 Difference]: Finished difference Result 1218 states and 1780 transitions. [2022-02-10 02:42:13,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 02:42:13,552 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 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) Word has length 45 [2022-02-10 02:42:13,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:42:13,554 INFO L225 Difference]: With dead ends: 1218 [2022-02-10 02:42:13,554 INFO L226 Difference]: Without dead ends: 1218 [2022-02-10 02:42:13,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-02-10 02:42:13,555 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 121 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 02:42:13,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 212 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 02:42:13,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2022-02-10 02:42:13,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 959. [2022-02-10 02:42:13,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 926 states have (on average 1.5302375809935205) internal successors, (1417), 958 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:13,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1417 transitions. [2022-02-10 02:42:13,569 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1417 transitions. Word has length 45 [2022-02-10 02:42:13,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:42:13,570 INFO L470 AbstractCegarLoop]: Abstraction has 959 states and 1417 transitions. [2022-02-10 02:42:13,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:13,570 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1417 transitions. [2022-02-10 02:42:13,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-10 02:42:13,571 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:42:13,571 INFO L514 BasicCegarLoop]: 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] [2022-02-10 02:42:13,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 02:42:13,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-02-10 02:42:13,795 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-02-10 02:42:13,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:42:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1709219736, now seen corresponding path program 1 times [2022-02-10 02:42:13,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:42:13,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181689118] [2022-02-10 02:42:13,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:42:13,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:42:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:42:13,916 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:42:13,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:42:13,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181689118] [2022-02-10 02:42:13,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181689118] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:42:13,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111428372] [2022-02-10 02:42:13,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:42:13,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:42:13,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:42:13,918 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:42:13,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 02:42:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:42:13,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 02:42:13,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:42:14,076 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:42:14,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:42:14,221 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:42:14,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111428372] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 02:42:14,221 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 02:42:14,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-02-10 02:42:14,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977721592] [2022-02-10 02:42:14,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 02:42:14,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 02:42:14,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:42:14,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 02:42:14,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-02-10 02:42:14,222 INFO L87 Difference]: Start difference. First operand 959 states and 1417 transitions. Second operand has 18 states, 18 states have (on average 4.166666666666667) internal successors, (75), 18 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:14,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:42:14,347 INFO L93 Difference]: Finished difference Result 979 states and 1437 transitions. [2022-02-10 02:42:14,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 02:42:14,348 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.166666666666667) internal successors, (75), 18 states have internal predecessors, (75), 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) Word has length 53 [2022-02-10 02:42:14,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:42:14,350 INFO L225 Difference]: With dead ends: 979 [2022-02-10 02:42:14,350 INFO L226 Difference]: Without dead ends: 979 [2022-02-10 02:42:14,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2022-02-10 02:42:14,351 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 39 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 02:42:14,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 668 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 02:42:14,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2022-02-10 02:42:14,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 979. [2022-02-10 02:42:14,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 946 states have (on average 1.5190274841437632) internal successors, (1437), 978 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:14,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1437 transitions. [2022-02-10 02:42:14,363 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1437 transitions. Word has length 53 [2022-02-10 02:42:14,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:42:14,364 INFO L470 AbstractCegarLoop]: Abstraction has 979 states and 1437 transitions. [2022-02-10 02:42:14,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.166666666666667) internal successors, (75), 18 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:14,364 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1437 transitions. [2022-02-10 02:42:14,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-10 02:42:14,367 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:42:14,367 INFO L514 BasicCegarLoop]: 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] [2022-02-10 02:42:14,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 02:42:14,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:42:14,585 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-02-10 02:42:14,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:42:14,586 INFO L85 PathProgramCache]: Analyzing trace with hash -731766360, now seen corresponding path program 2 times [2022-02-10 02:42:14,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:42:14,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655456597] [2022-02-10 02:42:14,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:42:14,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:42:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:42:14,768 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:42:14,768 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:42:14,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655456597] [2022-02-10 02:42:14,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655456597] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:42:14,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171672783] [2022-02-10 02:42:14,768 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 02:42:14,768 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:42:14,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:42:14,770 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:42:14,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 02:42:14,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-02-10 02:42:14,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 02:42:14,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjunts are in the unsatisfiable core [2022-02-10 02:42:14,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:42:14,922 INFO L387 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 [2022-02-10 02:42:14,943 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-10 02:42:14,944 INFO L387 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 [2022-02-10 02:42:14,982 INFO L353 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-10 02:42:14,982 INFO L387 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 [2022-02-10 02:42:15,031 INFO L353 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2022-02-10 02:42:15,031 INFO L387 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 [2022-02-10 02:42:15,051 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-02-10 02:42:15,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 02:42:15,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171672783] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:42:15,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 02:42:15,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-02-10 02:42:15,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967883223] [2022-02-10 02:42:15,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:42:15,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 02:42:15,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:42:15,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 02:42:15,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-02-10 02:42:15,053 INFO L87 Difference]: Start difference. First operand 979 states and 1437 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:15,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:42:15,200 INFO L93 Difference]: Finished difference Result 1251 states and 1823 transitions. [2022-02-10 02:42:15,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 02:42:15,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 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) Word has length 73 [2022-02-10 02:42:15,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:42:15,202 INFO L225 Difference]: With dead ends: 1251 [2022-02-10 02:42:15,202 INFO L226 Difference]: Without dead ends: 838 [2022-02-10 02:42:15,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-02-10 02:42:15,203 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 61 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 02:42:15,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 192 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 02:42:15,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-02-10 02:42:15,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 723. [2022-02-10 02:42:15,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 694 states have (on average 1.5619596541786744) internal successors, (1084), 722 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:15,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1084 transitions. [2022-02-10 02:42:15,339 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1084 transitions. Word has length 73 [2022-02-10 02:42:15,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:42:15,339 INFO L470 AbstractCegarLoop]: Abstraction has 723 states and 1084 transitions. [2022-02-10 02:42:15,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:15,339 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1084 transitions. [2022-02-10 02:42:15,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-10 02:42:15,340 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:42:15,340 INFO L514 BasicCegarLoop]: 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] [2022-02-10 02:42:15,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-10 02:42:15,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:42:15,547 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-02-10 02:42:15,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:42:15,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1750930688, now seen corresponding path program 1 times [2022-02-10 02:42:15,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:42:15,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915677516] [2022-02-10 02:42:15,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:42:15,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:42:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:42:15,712 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:42:15,712 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:42:15,712 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915677516] [2022-02-10 02:42:15,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915677516] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 02:42:15,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405040017] [2022-02-10 02:42:15,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:42:15,713 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:42:15,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:42:15,714 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 02:42:15,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 02:42:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:42:15,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-10 02:42:15,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 02:42:15,906 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:42:15,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 02:42:16,038 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:42:16,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405040017] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 02:42:16,039 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 02:42:16,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-02-10 02:42:16,039 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127723896] [2022-02-10 02:42:16,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 02:42:16,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-10 02:42:16,039 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:42:16,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-10 02:42:16,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-02-10 02:42:16,040 INFO L87 Difference]: Start difference. First operand 723 states and 1084 transitions. Second operand has 23 states, 23 states have (on average 3.9565217391304346) internal successors, (91), 23 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:16,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:42:16,274 INFO L93 Difference]: Finished difference Result 738 states and 1099 transitions. [2022-02-10 02:42:16,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 02:42:16,274 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.9565217391304346) internal successors, (91), 23 states have internal predecessors, (91), 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) Word has length 74 [2022-02-10 02:42:16,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:42:16,276 INFO L225 Difference]: With dead ends: 738 [2022-02-10 02:42:16,276 INFO L226 Difference]: Without dead ends: 738 [2022-02-10 02:42:16,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 141 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=524, Invalid=1116, Unknown=0, NotChecked=0, Total=1640 [2022-02-10 02:42:16,278 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 41 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 02:42:16,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 601 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 02:42:16,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2022-02-10 02:42:16,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 738. [2022-02-10 02:42:16,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 709 states have (on average 1.5500705218617772) internal successors, (1099), 737 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:16,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1099 transitions. [2022-02-10 02:42:16,288 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1099 transitions. Word has length 74 [2022-02-10 02:42:16,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:42:16,289 INFO L470 AbstractCegarLoop]: Abstraction has 738 states and 1099 transitions. [2022-02-10 02:42:16,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.9565217391304346) internal successors, (91), 23 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:16,289 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1099 transitions. [2022-02-10 02:42:16,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-02-10 02:42:16,290 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:42:16,290 INFO L514 BasicCegarLoop]: 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] [2022-02-10 02:42:16,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 02:42:16,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 02:42:16,508 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-02-10 02:42:16,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:42:16,508 INFO L85 PathProgramCache]: Analyzing trace with hash -258743201, now seen corresponding path program 2 times [2022-02-10 02:42:16,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:42:16,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370910630] [2022-02-10 02:42:16,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:42:16,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:42:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:42:16,607 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-02-10 02:42:16,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:42:16,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370910630] [2022-02-10 02:42:16,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370910630] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:42:16,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 02:42:16,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 02:42:16,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074433322] [2022-02-10 02:42:16,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:42:16,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 02:42:16,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:42:16,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 02:42:16,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-02-10 02:42:16,609 INFO L87 Difference]: Start difference. First operand 738 states and 1099 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:16,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:42:16,756 INFO L93 Difference]: Finished difference Result 877 states and 1276 transitions. [2022-02-10 02:42:16,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 02:42:16,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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) Word has length 89 [2022-02-10 02:42:16,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:42:16,759 INFO L225 Difference]: With dead ends: 877 [2022-02-10 02:42:16,759 INFO L226 Difference]: Without dead ends: 826 [2022-02-10 02:42:16,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-02-10 02:42:16,761 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 72 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 02:42:16,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 202 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 02:42:16,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-02-10 02:42:16,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 722. [2022-02-10 02:42:16,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 693 states have (on average 1.567099567099567) internal successors, (1086), 721 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:16,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1086 transitions. [2022-02-10 02:42:16,778 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1086 transitions. Word has length 89 [2022-02-10 02:42:16,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:42:16,779 INFO L470 AbstractCegarLoop]: Abstraction has 722 states and 1086 transitions. [2022-02-10 02:42:16,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 02:42:16,780 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1086 transitions. [2022-02-10 02:42:16,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-02-10 02:42:16,785 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:42:16,785 INFO L514 BasicCegarLoop]: 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] [2022-02-10 02:42:16,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 02:42:16,786 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2022-02-10 02:42:16,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:42:16,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1393814276, now seen corresponding path program 1 times [2022-02-10 02:42:16,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:42:16,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325248313] [2022-02-10 02:42:16,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:42:16,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:42:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 02:42:16,845 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 02:42:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 02:42:16,880 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 02:42:16,881 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-10 02:42:16,881 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-02-10 02:42:16,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-02-10 02:42:16,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 7 remaining) [2022-02-10 02:42:16,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2022-02-10 02:42:16,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-02-10 02:42:16,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-02-10 02:42:16,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-02-10 02:42:16,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 02:42:16,885 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1] [2022-02-10 02:42:16,890 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 02:42:16,890 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 02:42:16,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 02:42:16 BasicIcfg [2022-02-10 02:42:16,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 02:42:16,938 INFO L158 Benchmark]: Toolchain (without parser) took 110801.89ms. Allocated memory was 213.9MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 162.7MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 4.7GB. Max. memory is 8.0GB. [2022-02-10 02:42:16,938 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 213.9MB. Free memory is still 180.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 02:42:16,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.70ms. Allocated memory is still 213.9MB. Free memory was 162.5MB in the beginning and 182.1MB in the end (delta: -19.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-10 02:42:16,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.62ms. Allocated memory is still 213.9MB. Free memory was 182.1MB in the beginning and 180.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 02:42:16,938 INFO L158 Benchmark]: Boogie Preprocessor took 40.06ms. Allocated memory is still 213.9MB. Free memory was 180.0MB in the beginning and 178.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 02:42:16,939 INFO L158 Benchmark]: RCFGBuilder took 413.05ms. Allocated memory is still 213.9MB. Free memory was 178.4MB in the beginning and 164.8MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-10 02:42:16,939 INFO L158 Benchmark]: TraceAbstraction took 109841.82ms. Allocated memory was 213.9MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 164.3MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 4.7GB. Max. memory is 8.0GB. [2022-02-10 02:42:16,940 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 213.9MB. Free memory is still 180.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 448.70ms. Allocated memory is still 213.9MB. Free memory was 162.5MB in the beginning and 182.1MB in the end (delta: -19.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.62ms. Allocated memory is still 213.9MB. Free memory was 182.1MB in the beginning and 180.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.06ms. Allocated memory is still 213.9MB. Free memory was 180.0MB in the beginning and 178.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 413.05ms. Allocated memory is still 213.9MB. Free memory was 178.4MB in the beginning and 164.8MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 109841.82ms. Allocated memory was 213.9MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 164.3MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 4.7GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0 - 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}] [L693] 0 data[4]++ VAL [arg={0:0}, data={1:0}, data[4]=0, data[4]++=0, data[4]++=241, 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]=1, m={2:0}] [L683] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=1, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=1, data[4]=0, data[4]++=0, data[4]++=241, i=10, id={3:0}, m={2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: data[4]++ [693] * C: data[4]++ [683] * C: data[4]++ [693] * C: data[4]++ [693] * C: data[4]++ [693] 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. OverallTime: 109.7s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 12.5s, AutomataDifference: 37.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 52.3s, PartialOrderReductionTime: 52.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 352 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 352 mSDsluCounter, 2549 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1908 mSDsCounter, 152 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 820 IncrementalHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 152 mSolverCounterUnsat, 666 mSDtfsCounter, 820 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 535 GetRequests, 420 SyntacticMatches, 1 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=958985occurred in iteration=0, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 328716 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 803 NumberOfCodeBlocks, 753 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 855 ConstructedInterpolants, 0 QuantifiedInterpolants, 1576 SizeOfPredicates, 22 NumberOfNonLiveVariables, 686 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 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 [2022-02-10 02:42:17,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...