/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/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps '"3,2 1,1 2,2"' --traceabstraction.defines.what.statements.are.considered.a.step.in.por LOOP -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/unroll-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 13:12:20,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 13:12:20,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 13:12:20,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-04 13:12:20,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-04 13:12:20,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-04 13:12:20,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-04 13:12:20,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-04 13:12:20,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-04 13:12:20,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-04 13:12:20,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-04 13:12:20,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-04 13:12:20,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 13:12:20,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 13:12:20,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 13:12:20,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 13:12:20,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 13:12:20,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 13:12:20,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 13:12:20,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 13:12:20,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 13:12:20,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 13:12:20,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 13:12:20,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 13:12:20,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-04 13:12:20,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-04 13:12:20,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-04 13:12:20,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-04 13:12:20,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-04 13:12:20,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2023-05-04 13:12:20,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 13:12:20,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 13:12:20,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 13:12:20,981 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 13:12:21,009 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 13:12:21,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 13:12:21,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 13:12:21,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 13:12:21,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 13:12:21,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 13:12:21,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 13:12:21,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 13:12:21,011 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 13:12:21,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 13:12:21,012 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 13:12:21,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 13:12:21,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 13:12:21,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 13:12:21,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 13:12:21,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 13:12:21,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 13:12:21,013 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 13:12:21,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 13:12:21,013 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 13:12:21,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 13:12:21,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 13:12:21,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 13:12:21,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 13:12:21,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 13:12:21,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 13:12:21,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 13:12:21,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 13:12:21,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 13:12:21,016 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 13:12:21,016 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 13:12:21,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 13:12:21,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 13:12:21,016 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 13:12:21,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 13:12:21,017 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 13:12:21,017 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> 3,2 1,1 2,2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> LOOP [2023-05-04 13:12:21,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 13:12:21,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 13:12:21,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 13:12:21,239 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 13:12:21,240 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 13:12:21,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/unroll-4.wvr.c [2023-05-04 13:12:21,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b0b6db0c/149a058a4e494467b1c7066b9e78757e/FLAG80639fd39 [2023-05-04 13:12:21,677 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 13:12:21,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-4.wvr.c [2023-05-04 13:12:21,682 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b0b6db0c/149a058a4e494467b1c7066b9e78757e/FLAG80639fd39 [2023-05-04 13:12:21,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b0b6db0c/149a058a4e494467b1c7066b9e78757e [2023-05-04 13:12:21,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 13:12:21,694 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 13:12:21,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 13:12:21,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 13:12:21,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 13:12:21,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 01:12:21" (1/1) ... [2023-05-04 13:12:21,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa3e616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:12:21, skipping insertion in model container [2023-05-04 13:12:21,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 01:12:21" (1/1) ... [2023-05-04 13:12:21,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 13:12:21,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 13:12:21,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-4.wvr.c[2572,2585] [2023-05-04 13:12:21,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 13:12:21,903 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 13:12:21,921 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-4.wvr.c[2572,2585] [2023-05-04 13:12:21,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 13:12:21,934 INFO L208 MainTranslator]: Completed translation [2023-05-04 13:12:21,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:12:21 WrapperNode [2023-05-04 13:12:21,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 13:12:21,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 13:12:21,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 13:12:21,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 13:12:21,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:12:21" (1/1) ... [2023-05-04 13:12:21,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:12:21" (1/1) ... [2023-05-04 13:12:21,976 INFO L138 Inliner]: procedures = 24, calls = 36, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 154 [2023-05-04 13:12:21,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 13:12:21,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 13:12:21,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 13:12:21,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 13:12:21,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:12:21" (1/1) ... [2023-05-04 13:12:21,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:12:21" (1/1) ... [2023-05-04 13:12:21,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:12:21" (1/1) ... [2023-05-04 13:12:21,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:12:21" (1/1) ... [2023-05-04 13:12:21,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:12:21" (1/1) ... [2023-05-04 13:12:21,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:12:21" (1/1) ... [2023-05-04 13:12:21,997 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:12:21" (1/1) ... [2023-05-04 13:12:21,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:12:21" (1/1) ... [2023-05-04 13:12:22,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 13:12:22,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 13:12:22,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 13:12:22,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 13:12:22,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:12:21" (1/1) ... [2023-05-04 13:12:22,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 13:12:22,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 13:12:22,035 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) [2023-05-04 13:12:22,037 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 [2023-05-04 13:12:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 13:12:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-04 13:12:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-04 13:12:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-04 13:12:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-04 13:12:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 13:12:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 13:12:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 13:12:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-05-04 13:12:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 13:12:22,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 13:12:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 13:12:22,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 13:12:22,064 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-04 13:12:22,142 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 13:12:22,144 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 13:12:22,456 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 13:12:22,464 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 13:12:22,464 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-05-04 13:12:22,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 01:12:22 BoogieIcfgContainer [2023-05-04 13:12:22,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 13:12:22,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 13:12:22,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 13:12:22,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 13:12:22,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 01:12:21" (1/3) ... [2023-05-04 13:12:22,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b686cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 01:12:22, skipping insertion in model container [2023-05-04 13:12:22,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:12:21" (2/3) ... [2023-05-04 13:12:22,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b686cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 01:12:22, skipping insertion in model container [2023-05-04 13:12:22,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 01:12:22" (3/3) ... [2023-05-04 13:12:22,474 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.c [2023-05-04 13:12:22,485 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 13:12:22,493 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 13:12:22,494 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 13:12:22,494 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 13:12:22,588 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-04 13:12:22,637 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 13:12:22,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 13:12:22,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 13:12:22,639 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) [2023-05-04 13:12:22,646 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 [2023-05-04 13:12:22,675 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 13:12:22,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 13:12:22,696 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@44bad70f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 13:12:22,696 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-05-04 13:12:22,898 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 13:12:22,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:12:22,902 INFO L85 PathProgramCache]: Analyzing trace with hash 393824211, now seen corresponding path program 1 times [2023-05-04 13:12:22,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:12:22,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042349091] [2023-05-04 13:12:22,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:12:22,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:12:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:12:23,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 13:12:23,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:12:23,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042349091] [2023-05-04 13:12:23,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042349091] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 13:12:23,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 13:12:23,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 13:12:23,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283286552] [2023-05-04 13:12:23,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 13:12:23,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 13:12:23,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:12:23,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 13:12:23,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 13:12:23,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:23,250 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:12:23,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 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) [2023-05-04 13:12:23,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:23,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:23,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 13:12:23,280 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 13:12:23,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:12:23,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1419316210, now seen corresponding path program 1 times [2023-05-04 13:12:23,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:12:23,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283887191] [2023-05-04 13:12:23,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:12:23,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:12:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:12:23,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 13:12:23,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:12:23,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283887191] [2023-05-04 13:12:23,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283887191] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 13:12:23,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 13:12:23,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 13:12:23,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384436731] [2023-05-04 13:12:23,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 13:12:23,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 13:12:23,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:12:23,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 13:12:23,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-04 13:12:23,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:23,667 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:12:23,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2023-05-04 13:12:23,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:23,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:23,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:23,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 13:12:23,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 13:12:23,738 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 13:12:23,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:12:23,738 INFO L85 PathProgramCache]: Analyzing trace with hash 133739067, now seen corresponding path program 1 times [2023-05-04 13:12:23,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:12:23,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624615717] [2023-05-04 13:12:23,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:12:23,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:12:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:12:23,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 13:12:23,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:12:23,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624615717] [2023-05-04 13:12:23,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624615717] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 13:12:23,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 13:12:23,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-05-04 13:12:23,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356342182] [2023-05-04 13:12:23,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 13:12:23,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-05-04 13:12:23,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:12:23,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-05-04 13:12:23,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-05-04 13:12:23,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:23,975 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:12:23,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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) [2023-05-04 13:12:23,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 13:12:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:24,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:24,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 13:12:24,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:24,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-04 13:12:24,126 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 13:12:24,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:12:24,127 INFO L85 PathProgramCache]: Analyzing trace with hash -877417818, now seen corresponding path program 1 times [2023-05-04 13:12:24,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:12:24,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024914744] [2023-05-04 13:12:24,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:12:24,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:12:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:12:24,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 13:12:24,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:12:24,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024914744] [2023-05-04 13:12:24,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024914744] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 13:12:24,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 13:12:24,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 13:12:24,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152706431] [2023-05-04 13:12:24,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 13:12:24,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 13:12:24,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:12:24,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 13:12:24,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-05-04 13:12:24,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:24,393 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:12:24,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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) [2023-05-04 13:12:24,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:24,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 13:12:24,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:24,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:24,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:24,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 13:12:24,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:24,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:24,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-04 13:12:24,638 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 13:12:24,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:12:24,639 INFO L85 PathProgramCache]: Analyzing trace with hash 515132053, now seen corresponding path program 1 times [2023-05-04 13:12:24,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:12:24,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412277349] [2023-05-04 13:12:24,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:12:24,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:12:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:12:25,655 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 13:12:25,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:12:25,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412277349] [2023-05-04 13:12:25,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412277349] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 13:12:25,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695489832] [2023-05-04 13:12:25,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:12:25,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:12:25,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 13:12:25,658 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) [2023-05-04 13:12:25,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-04 13:12:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:12:25,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 39 conjunts are in the unsatisfiable core [2023-05-04 13:12:25,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 13:12:27,034 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 13:12:27,037 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 13:12:27,038 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 10 [2023-05-04 13:12:27,134 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 13:12:27,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 13:12:27,235 INFO L356 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2023-05-04 13:12:27,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2023-05-04 13:12:28,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 13:12:28,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695489832] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 13:12:28,298 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 13:12:28,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 23, 17] total 47 [2023-05-04 13:12:28,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489129716] [2023-05-04 13:12:28,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 13:12:28,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-05-04 13:12:28,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:12:28,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-05-04 13:12:28,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1967, Unknown=0, NotChecked=0, Total=2162 [2023-05-04 13:12:28,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:28,302 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:12:28,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 9.127659574468085) internal successors, (429), 47 states have internal predecessors, (429), 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) [2023-05-04 13:12:28,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:28,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 13:12:28,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:28,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:28,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 13:12:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-05-04 13:12:31,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-04 13:12:32,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:12:32,150 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 13:12:32,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:12:32,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1567446488, now seen corresponding path program 2 times [2023-05-04 13:12:32,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:12:32,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562762183] [2023-05-04 13:12:32,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:12:32,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:12:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:12:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 13:12:32,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:12:32,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562762183] [2023-05-04 13:12:32,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562762183] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 13:12:32,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695322014] [2023-05-04 13:12:32,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 13:12:32,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:12:32,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 13:12:32,456 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) [2023-05-04 13:12:32,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-04 13:12:32,705 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 13:12:32,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 13:12:32,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 46 conjunts are in the unsatisfiable core [2023-05-04 13:12:32,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 13:12:34,130 INFO L356 Elim1Store]: treesize reduction 49, result has 16.9 percent of original size [2023-05-04 13:12:34,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 36 [2023-05-04 13:12:34,291 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 13:12:34,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 13:12:34,994 INFO L356 Elim1Store]: treesize reduction 10, result has 85.5 percent of original size [2023-05-04 13:12:34,995 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 84 [2023-05-04 13:12:35,849 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 13:12:35,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695322014] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 13:12:35,850 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 13:12:35,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 25, 25] total 51 [2023-05-04 13:12:35,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730164004] [2023-05-04 13:12:35,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 13:12:35,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-05-04 13:12:35,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:12:35,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-05-04 13:12:35,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=2300, Unknown=0, NotChecked=0, Total=2550 [2023-05-04 13:12:35,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:35,862 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:12:35,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 9.529411764705882) internal successors, (486), 51 states have internal predecessors, (486), 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) [2023-05-04 13:12:35,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:35,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 13:12:35,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:35,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:35,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2023-05-04 13:12:35,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 13:12:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-05-04 13:12:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-05-04 13:12:39,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-04 13:12:39,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:12:39,510 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 13:12:39,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:12:39,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1517156986, now seen corresponding path program 3 times [2023-05-04 13:12:39,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:12:39,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520779982] [2023-05-04 13:12:39,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:12:39,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:12:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:12:40,059 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 13:12:40,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:12:40,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520779982] [2023-05-04 13:12:40,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520779982] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 13:12:40,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202427136] [2023-05-04 13:12:40,060 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 13:12:40,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:12:40,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 13:12:40,061 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) [2023-05-04 13:12:40,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-04 13:12:40,175 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-05-04 13:12:40,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 13:12:40,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 50 conjunts are in the unsatisfiable core [2023-05-04 13:12:40,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 13:12:40,433 INFO L390 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 15 treesize of output 11 [2023-05-04 13:12:40,647 INFO L390 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 6 treesize of output 5 [2023-05-04 13:12:40,695 INFO L390 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 6 treesize of output 5 [2023-05-04 13:12:41,383 INFO L356 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2023-05-04 13:12:41,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2023-05-04 13:12:41,486 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-05-04 13:12:41,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 13:12:43,346 WARN L833 $PredicateComparison]: unable to prove that (forall ((~x1~0 Int) (~x2~0 Int) (v_ArrVal_118 (Array Int Int))) (or (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_118) c_~f~0.base))) (= (select .cse0 (+ c_~f~0.offset (* ~x2~0 4))) (select .cse0 (+ (* ~x1~0 4) c_~f~0.offset)))) (< ~x1~0 0) (<= c_~size~0 ~x1~0) (< ~x2~0 0) (<= c_~size~0 ~x2~0))) is different from false [2023-05-04 13:12:43,455 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_117 (Array Int Int)) (~x1~0 Int) (~x2~0 Int) (v_ArrVal_118 (Array Int Int))) (or (< ~x1~0 0) (<= c_~size~0 ~x1~0) (< ~x2~0 0) (<= c_~size~0 ~x2~0) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_117) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_118) c_~f~0.base))) (= (select .cse0 (+ c_~f~0.offset (* ~x2~0 4))) (select .cse0 (+ (* ~x1~0 4) c_~f~0.offset)))))) is different from false [2023-05-04 13:12:43,631 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_117 (Array Int Int)) (~x1~0 Int) (~x2~0 Int) (v_ArrVal_118 (Array Int Int))) (or (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_117) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_118) |c_ULTIMATE.start_main_#t~ret13#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_main_#t~ret13#1.offset| (* ~x2~0 4))) (select .cse0 (+ (* ~x1~0 4) |c_ULTIMATE.start_main_#t~ret13#1.offset|)))) (< ~x1~0 0) (<= c_~size~0 ~x1~0) (< ~x2~0 0) (<= c_~size~0 ~x2~0))) is different from false [2023-05-04 13:12:43,775 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_117 (Array Int Int)) (~x1~0 Int) (~x2~0 Int) (v_ArrVal_118 (Array Int Int))) (or (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_117) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_118) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (= (select .cse0 (+ (* ~x2~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (select .cse0 (+ (* ~x1~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (< ~x1~0 0) (<= c_~size~0 ~x1~0) (< ~x2~0 0) (<= c_~size~0 ~x2~0))) is different from false [2023-05-04 13:12:44,129 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 13:12:44,133 INFO L390 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 44 [2023-05-04 13:12:44,143 INFO L356 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2023-05-04 13:12:44,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 85 [2023-05-04 13:12:44,151 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-05-04 13:12:44,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 54 [2023-05-04 13:12:44,160 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-05-04 13:12:44,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 20 [2023-05-04 13:12:44,378 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-05-04 13:12:44,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202427136] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 13:12:44,379 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 13:12:44,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 29, 26] total 57 [2023-05-04 13:12:44,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454724947] [2023-05-04 13:12:44,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 13:12:44,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2023-05-04 13:12:44,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:12:44,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2023-05-04 13:12:44,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=2498, Unknown=14, NotChecked=420, Total=3192 [2023-05-04 13:12:44,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:44,382 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:12:44,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 9.385964912280702) internal successors, (535), 57 states have internal predecessors, (535), 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) [2023-05-04 13:12:44,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:44,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 13:12:44,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:44,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:44,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2023-05-04 13:12:44,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2023-05-04 13:12:44,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:48,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:48,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 13:12:48,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:48,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:48,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-05-04 13:12:48,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-05-04 13:12:48,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-05-04 13:12:48,222 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-05-04 13:12:48,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:12:48,408 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 13:12:48,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:12:48,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1811458695, now seen corresponding path program 4 times [2023-05-04 13:12:48,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:12:48,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888904919] [2023-05-04 13:12:48,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:12:48,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:12:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:12:49,083 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 13:12:49,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:12:49,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888904919] [2023-05-04 13:12:49,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888904919] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 13:12:49,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193196466] [2023-05-04 13:12:49,084 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 13:12:49,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:12:49,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 13:12:49,089 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) [2023-05-04 13:12:49,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-04 13:12:49,201 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 13:12:49,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 13:12:49,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 38 conjunts are in the unsatisfiable core [2023-05-04 13:12:49,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 13:12:50,087 INFO L356 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2023-05-04 13:12:50,087 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2023-05-04 13:12:50,185 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-05-04 13:12:50,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 13:12:50,498 INFO L356 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2023-05-04 13:12:50,499 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2023-05-04 13:12:51,022 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 2 proven. 50 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-05-04 13:12:51,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193196466] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 13:12:51,022 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 13:12:51,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 20, 20] total 43 [2023-05-04 13:12:51,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284164577] [2023-05-04 13:12:51,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 13:12:51,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-05-04 13:12:51,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:12:51,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-05-04 13:12:51,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1643, Unknown=0, NotChecked=0, Total=1806 [2023-05-04 13:12:51,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:51,025 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:12:51,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 10.883720930232558) internal successors, (468), 43 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 13:12:51,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:51,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 13:12:51,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:51,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:51,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2023-05-04 13:12:51,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2023-05-04 13:12:51,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2023-05-04 13:12:51,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:55,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:12:55,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 13:12:55,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:55,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:12:55,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-05-04 13:12:55,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-05-04 13:12:55,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2023-05-04 13:12:55,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2023-05-04 13:12:55,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-04 13:12:55,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:12:55,997 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 13:12:55,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:12:55,997 INFO L85 PathProgramCache]: Analyzing trace with hash -91366338, now seen corresponding path program 5 times [2023-05-04 13:12:55,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:12:55,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783075486] [2023-05-04 13:12:55,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:12:55,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:12:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:12:56,929 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 274 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-05-04 13:12:56,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:12:56,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783075486] [2023-05-04 13:12:56,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783075486] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 13:12:56,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74556559] [2023-05-04 13:12:56,930 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-04 13:12:56,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:12:56,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 13:12:56,931 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 13:12:56,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-04 13:12:59,399 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-05-04 13:12:59,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 13:12:59,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 108 conjunts are in the unsatisfiable core [2023-05-04 13:12:59,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 13:13:05,219 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 13:13:05,220 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 13:13:05,225 INFO L356 Elim1Store]: treesize reduction 3, result has 70.0 percent of original size [2023-05-04 13:13:05,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 16 [2023-05-04 13:13:05,390 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 88 proven. 226 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 13:13:05,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 13:13:15,563 INFO L356 Elim1Store]: treesize reduction 10, result has 98.5 percent of original size [2023-05-04 13:13:15,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 20 new quantified variables, introduced 66 case distinctions, treesize of input 247 treesize of output 765 [2023-05-04 13:20:06,369 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-05-04 13:20:56,983 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-05-04 13:21:04,888 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-05-04 13:21:07,258 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-05-04 13:21:09,504 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-05-04 13:21:11,760 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-05-04 13:21:45,597 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-05-04 13:21:46,434 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-05-04 13:22:06,183 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-05-04 13:22:14,002 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-05-04 13:22:51,637 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-05-04 13:22:59,719 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-05-04 13:23:03,120 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-05-04 13:23:08,444 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-05-04 13:23:09,480 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-05-04 13:25:27,764 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-05-04 13:26:06,339 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-05-04 13:26:07,211 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. Received shutdown request... [2023-05-04 13:26:12,481 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 13:26:12,483 WARN L249 SmtUtils]: Removed 2 from assertion stack [2023-05-04 13:26:12,485 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-05-04 13:26:12,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-05-04 13:26:12,529 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 13:26:12,529 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 13:26:12,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:26:12,686 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 326 with TraceHistMax 4,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 36ms.. [2023-05-04 13:26:12,688 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-05-04 13:26:12,688 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-05-04 13:26:12,691 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1] [2023-05-04 13:26:12,693 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-04 13:26:12,693 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-04 13:26:12,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.05 01:26:12 BasicIcfg [2023-05-04 13:26:12,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-04 13:26:12,695 INFO L158 Benchmark]: Toolchain (without parser) took 831000.43ms. Allocated memory was 187.7MB in the beginning and 1.0GB in the end (delta: 816.8MB). Free memory was 132.6MB in the beginning and 583.3MB in the end (delta: -450.8MB). Peak memory consumption was 611.8MB. Max. memory is 8.0GB. [2023-05-04 13:26:12,695 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory was 150.1MB in the beginning and 150.0MB in the end (delta: 182.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 13:26:12,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.83ms. Allocated memory is still 187.7MB. Free memory was 132.4MB in the beginning and 160.2MB in the end (delta: -27.9MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-05-04 13:26:12,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.35ms. Allocated memory is still 187.7MB. Free memory was 160.1MB in the beginning and 158.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-05-04 13:26:12,696 INFO L158 Benchmark]: Boogie Preprocessor took 24.15ms. Allocated memory is still 187.7MB. Free memory was 158.1MB in the beginning and 156.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-04 13:26:12,696 INFO L158 Benchmark]: RCFGBuilder took 465.09ms. Allocated memory is still 187.7MB. Free memory was 156.5MB in the beginning and 139.4MB in the end (delta: 17.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-05-04 13:26:12,696 INFO L158 Benchmark]: TraceAbstraction took 830225.96ms. Allocated memory was 187.7MB in the beginning and 1.0GB in the end (delta: 816.8MB). Free memory was 138.2MB in the beginning and 583.3MB in the end (delta: -445.2MB). Peak memory consumption was 617.5MB. Max. memory is 8.0GB. [2023-05-04 13:26:12,698 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory was 150.1MB in the beginning and 150.0MB in the end (delta: 182.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 238.83ms. Allocated memory is still 187.7MB. Free memory was 132.4MB in the beginning and 160.2MB in the end (delta: -27.9MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.35ms. Allocated memory is still 187.7MB. Free memory was 160.1MB in the beginning and 158.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.15ms. Allocated memory is still 187.7MB. Free memory was 158.1MB in the beginning and 156.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 465.09ms. Allocated memory is still 187.7MB. Free memory was 156.5MB in the beginning and 139.4MB in the end (delta: 17.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 830225.96ms. Allocated memory was 187.7MB in the beginning and 1.0GB in the end (delta: 816.8MB). Free memory was 138.2MB in the beginning and 583.3MB in the end (delta: -445.2MB). Peak memory consumption was 617.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8832, independent: 7926, independent conditional: 4009, independent unconditional: 3917, dependent: 906, dependent conditional: 901, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7931, independent: 7926, independent conditional: 4009, independent unconditional: 3917, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7931, independent: 7926, independent conditional: 4009, independent unconditional: 3917, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7931, independent: 7926, independent conditional: 0, independent unconditional: 7926, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7931, independent: 7926, independent conditional: 0, independent unconditional: 7926, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7931, independent: 7926, independent conditional: 0, independent unconditional: 7926, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3586, independent: 3581, independent conditional: 0, independent unconditional: 3581, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3586, independent: 3580, independent conditional: 0, independent unconditional: 3580, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 6, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 7931, independent: 4345, independent conditional: 0, independent unconditional: 4345, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 3586, unknown conditional: 0, unknown unconditional: 3586] , Statistics on independence cache: Total cache size (in pairs): 3586, Positive cache size: 3581, Positive conditional cache size: 0, Positive unconditional cache size: 3581, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 901 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 248, Number of trivial persistent sets: 124, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3922, independent: 3917, independent conditional: 0, independent unconditional: 3917, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8832, independent: 7926, independent conditional: 4009, independent unconditional: 3917, dependent: 906, dependent conditional: 901, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7931, independent: 7926, independent conditional: 4009, independent unconditional: 3917, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7931, independent: 7926, independent conditional: 4009, independent unconditional: 3917, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7931, independent: 7926, independent conditional: 0, independent unconditional: 7926, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7931, independent: 7926, independent conditional: 0, independent unconditional: 7926, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7931, independent: 7926, independent conditional: 0, independent unconditional: 7926, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3586, independent: 3581, independent conditional: 0, independent unconditional: 3581, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3586, independent: 3580, independent conditional: 0, independent unconditional: 3580, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 6, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 7931, independent: 4345, independent conditional: 0, independent unconditional: 4345, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 3586, unknown conditional: 0, unknown unconditional: 3586] , Statistics on independence cache: Total cache size (in pairs): 3586, Positive cache size: 3581, Positive conditional cache size: 0, Positive unconditional cache size: 3581, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 901 - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 326 with TraceHistMax 4,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 36ms.. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 326 with TraceHistMax 4,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 36ms.. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 326 with TraceHistMax 4,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 36ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 261 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 830.0s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 16.4s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 322, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 14.9s InterpolantComputationTime, 2037 NumberOfCodeBlocks, 1956 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2831 ConstructedInterpolants, 277 QuantifiedInterpolants, 27868 SizeOfPredicates, 120 NumberOfNonLiveVariables, 1359 ConjunctsInSsa, 173 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 228/546 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: Timeout Completed graceful shutdown