/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-MCRwithoutDepranks-Lazy.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/04-mutex_02-simple_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-10 15:18:32,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 15:18:32,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 15:18:32,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 15:18:32,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 15:18:32,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 15:18:32,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 15:18:32,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 15:18:32,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 15:18:32,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 15:18:32,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 15:18:32,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 15:18:32,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 15:18:32,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 15:18:32,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 15:18:32,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 15:18:32,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 15:18:32,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 15:18:32,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 15:18:32,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 15:18:32,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 15:18:32,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 15:18:33,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 15:18:33,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 15:18:33,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-10 15:18:33,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-10 15:18:33,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-10 15:18:33,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-10 15:18:33,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-10 15:18:33,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-10 15:18:33,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 15:18:33,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 15:18:33,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 15:18:33,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 15:18:33,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 15:18:33,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 15:18:33,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 15:18:33,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 15:18:33,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 15:18:33,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 15:18:33,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 15:18:33,021 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-MCRwithoutDepranks-Lazy.epf [2022-02-10 15:18:33,047 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 15:18:33,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 15:18:33,047 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 15:18:33,047 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 15:18:33,048 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 15:18:33,048 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 15:18:33,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 15:18:33,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 15:18:33,049 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 15:18:33,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 15:18:33,049 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 15:18:33,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 15:18:33,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 15:18:33,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 15:18:33,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 15:18:33,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 15:18:33,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 15:18:33,049 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 15:18:33,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 15:18:33,050 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 15:18:33,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 15:18:33,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 15:18:33,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 15:18:33,050 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 15:18:33,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 15:18:33,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 15:18:33,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 15:18:33,050 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-10 15:18:33,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 15:18:33,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 15:18:33,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 15:18:33,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 15:18:33,051 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 15:18:33,053 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-10 15:18:33,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 15:18:33,053 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-10 15:18:33,054 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-02-10 15:18:33,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 15:18:33,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 15:18:33,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 15:18:33,258 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 15:18:33,258 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 15:18:33,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.i [2022-02-10 15:18:33,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42dd3f1a2/1a647412c763439eb3850a5d801d7918/FLAGd37b0c74f [2022-02-10 15:18:33,785 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 15:18:33,785 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.i [2022-02-10 15:18:33,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42dd3f1a2/1a647412c763439eb3850a5d801d7918/FLAGd37b0c74f [2022-02-10 15:18:34,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42dd3f1a2/1a647412c763439eb3850a5d801d7918 [2022-02-10 15:18:34,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 15:18:34,285 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 15:18:34,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 15:18:34,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 15:18:34,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 15:18:34,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 03:18:34" (1/1) ... [2022-02-10 15:18:34,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@528d243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 03:18:34, skipping insertion in model container [2022-02-10 15:18:34,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 03:18:34" (1/1) ... [2022-02-10 15:18:34,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 15:18:34,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 15:18:34,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 15:18:34,709 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 15:18:34,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 15:18:34,802 INFO L208 MainTranslator]: Completed translation [2022-02-10 15:18:34,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 03:18:34 WrapperNode [2022-02-10 15:18:34,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 15:18:34,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 15:18:34,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 15:18:34,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 15:18:34,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 03:18:34" (1/1) ... [2022-02-10 15:18:34,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 03:18:34" (1/1) ... [2022-02-10 15:18:34,853 INFO L137 Inliner]: procedures = 262, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-02-10 15:18:34,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 15:18:34,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 15:18:34,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 15:18:34,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 15:18:34,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 03:18:34" (1/1) ... [2022-02-10 15:18:34,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 03:18:34" (1/1) ... [2022-02-10 15:18:34,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 03:18:34" (1/1) ... [2022-02-10 15:18:34,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 03:18:34" (1/1) ... [2022-02-10 15:18:34,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 03:18:34" (1/1) ... [2022-02-10 15:18:34,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 03:18:34" (1/1) ... [2022-02-10 15:18:34,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 03:18:34" (1/1) ... [2022-02-10 15:18:34,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 15:18:34,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 15:18:34,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 15:18:34,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 15:18:34,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 03:18:34" (1/1) ... [2022-02-10 15:18:34,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 15:18:34,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 15:18:34,914 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 15:18:34,920 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 15:18:34,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 15:18:34,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 15:18:34,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 15:18:34,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 15:18:34,947 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-10 15:18:34,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 15:18:34,947 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-10 15:18:34,948 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-10 15:18:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 15:18:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 15:18:34,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 15:18:34,949 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 15:18:35,069 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 15:18:35,071 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 15:18:35,198 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 15:18:35,203 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 15:18:35,203 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-10 15:18:35,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 03:18:35 BoogieIcfgContainer [2022-02-10 15:18:35,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 15:18:35,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 15:18:35,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 15:18:35,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 15:18:35,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 03:18:34" (1/3) ... [2022-02-10 15:18:35,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c7fb32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 03:18:35, skipping insertion in model container [2022-02-10 15:18:35,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 03:18:34" (2/3) ... [2022-02-10 15:18:35,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c7fb32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 03:18:35, skipping insertion in model container [2022-02-10 15:18:35,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 03:18:35" (3/3) ... [2022-02-10 15:18:35,210 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_02-simple_nr.i [2022-02-10 15:18:35,214 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 15:18:35,214 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 15:18:35,215 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-02-10 15:18:35,215 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 15:18:35,233 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,234 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,234 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,234 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,234 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,234 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,234 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,234 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,235 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,235 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,235 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,235 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,236 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,236 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,236 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,236 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,236 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,236 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,236 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,237 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,237 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,237 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,237 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,237 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,237 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,237 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,240 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,240 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 15:18:35,243 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-10 15:18:35,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-10 15:18:35,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 15:18:35,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-10 15:18:35,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-10 15:18:35,296 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 15:18:35,301 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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 15:18:35,301 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-02-10 15:18:35,346 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 43 transitions and produced 44 states. [2022-02-10 15:18:35,348 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-02-10 15:18:35,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 15:18:35,352 INFO L85 PathProgramCache]: Analyzing trace with hash -260902700, now seen corresponding path program 1 times [2022-02-10 15:18:35,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 15:18:35,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24247714] [2022-02-10 15:18:35,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 15:18:35,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 15:18:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 15:18:35,550 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 15:18:35,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 15:18:35,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24247714] [2022-02-10 15:18:35,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24247714] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 15:18:35,552 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 15:18:35,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 15:18:35,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697986624] [2022-02-10 15:18:35,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 15:18:35,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 15:18:35,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 15:18:35,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 15:18:35,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 15:18:35,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 15:18:35,580 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 15:18:35,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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 15:18:35,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 15:18:35,636 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 52 transitions and produced 53 states. [2022-02-10 15:18:35,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 15:18:35,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 15:18:35,639 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-02-10 15:18:35,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 15:18:35,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1452282035, now seen corresponding path program 1 times [2022-02-10 15:18:35,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 15:18:35,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810891086] [2022-02-10 15:18:35,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 15:18:35,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 15:18:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 15:18:35,676 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 15:18:35,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 15:18:35,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810891086] [2022-02-10 15:18:35,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810891086] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 15:18:35,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 15:18:35,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 15:18:35,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530538587] [2022-02-10 15:18:35,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 15:18:35,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 15:18:35,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 15:18:35,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 15:18:35,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 15:18:35,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 15:18:35,681 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 15:18:35,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 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 15:18:35,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 15:18:35,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 15:18:35,769 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 69 transitions and produced 70 states. [2022-02-10 15:18:35,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 15:18:35,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 15:18:35,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 15:18:35,770 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-02-10 15:18:35,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 15:18:35,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1334920413, now seen corresponding path program 1 times [2022-02-10 15:18:35,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 15:18:35,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125757089] [2022-02-10 15:18:35,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 15:18:35,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 15:18:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 15:18:35,923 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 15:18:35,923 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 15:18:35,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125757089] [2022-02-10 15:18:35,924 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125757089] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 15:18:35,924 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 15:18:35,924 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 15:18:35,924 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174560620] [2022-02-10 15:18:35,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 15:18:35,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 15:18:35,925 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 15:18:35,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 15:18:35,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-02-10 15:18:35,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 15:18:35,926 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 15:18:35,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 15:18:35,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 15:18:35,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 15:18:35,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 15:18:36,057 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 79 transitions and produced 80 states. [2022-02-10 15:18:36,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 15:18:36,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 15:18:36,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 15:18:36,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 15:18:36,059 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-02-10 15:18:36,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 15:18:36,060 INFO L85 PathProgramCache]: Analyzing trace with hash -2016658633, now seen corresponding path program 1 times [2022-02-10 15:18:36,060 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 15:18:36,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99743584] [2022-02-10 15:18:36,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 15:18:36,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 15:18:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 15:18:36,109 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 15:18:36,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 15:18:36,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99743584] [2022-02-10 15:18:36,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99743584] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 15:18:36,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 15:18:36,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 15:18:36,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184927089] [2022-02-10 15:18:36,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 15:18:36,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 15:18:36,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 15:18:36,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 15:18:36,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 15:18:36,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 15:18:36,114 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 15:18:36,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.5) internal successors, (57), 3 states have internal predecessors, (57), 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 15:18:36,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 15:18:36,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 15:18:36,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-10 15:18:36,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.