/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_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7707f89-m [2022-11-16 02:05:19,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 02:05:19,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 02:05:19,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 02:05:19,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 02:05:19,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 02:05:19,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 02:05:19,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 02:05:19,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 02:05:19,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 02:05:19,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 02:05:19,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 02:05:19,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 02:05:19,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 02:05:19,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 02:05:19,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 02:05:19,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 02:05:19,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 02:05:19,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 02:05:19,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 02:05:19,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 02:05:19,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 02:05:19,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 02:05:19,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 02:05:19,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-11-16 02:05:19,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 02:05:19,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 02:05:19,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 02:05:19,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 02:05:19,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 02:05:19,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 02:05:19,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 02:05:19,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 02:05:19,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 02:05:19,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 02:05:19,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 02:05:19,760 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-11-16 02:05:19,785 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 02:05:19,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 02:05:19,785 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 02:05:19,785 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 02:05:19,786 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 02:05:19,786 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 02:05:19,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 02:05:19,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 02:05:19,786 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 02:05:19,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 02:05:19,787 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 02:05:19,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 02:05:19,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 02:05:19,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 02:05:19,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 02:05:19,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 02:05:19,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 02:05:19,788 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 02:05:19,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 02:05:19,788 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 02:05:19,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 02:05:19,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 02:05:19,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 02:05:19,788 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-16 02:05:19,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 02:05:19,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 02:05:19,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 02:05:19,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 02:05:19,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 02:05:19,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 02:05:19,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 02:05:19,789 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 02:05:19,789 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-16 02:05:19,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 02:05:19,789 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-16 02:05:19,789 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-16 02:05:19,789 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2022-11-16 02:05:19,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 02:05:19,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 02:05:19,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 02:05:19,991 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 02:05:19,992 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 02:05:19,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c [2022-11-16 02:05:20,032 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b90ff3866/1e84eb21313c4fd485abf5330882c7ee/FLAGf55c98e58 [2022-11-16 02:05:20,357 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 02:05:20,358 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c [2022-11-16 02:05:20,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b90ff3866/1e84eb21313c4fd485abf5330882c7ee/FLAGf55c98e58 [2022-11-16 02:05:20,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b90ff3866/1e84eb21313c4fd485abf5330882c7ee [2022-11-16 02:05:20,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 02:05:20,773 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-16 02:05:20,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 02:05:20,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 02:05:20,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 02:05:20,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:05:20" (1/1) ... [2022-11-16 02:05:20,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@302194b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:05:20, skipping insertion in model container [2022-11-16 02:05:20,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:05:20" (1/1) ... [2022-11-16 02:05:20,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 02:05:20,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 02:05:20,938 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c[3107,3120] [2022-11-16 02:05:20,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 02:05:20,950 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 02:05:20,978 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c[3107,3120] [2022-11-16 02:05:20,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 02:05:20,991 INFO L208 MainTranslator]: Completed translation [2022-11-16 02:05:20,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:05:20 WrapperNode [2022-11-16 02:05:20,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 02:05:20,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 02:05:20,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 02:05:20,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 02:05:20,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:05:20" (1/1) ... [2022-11-16 02:05:21,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:05:20" (1/1) ... [2022-11-16 02:05:21,033 INFO L138 Inliner]: procedures = 25, calls = 52, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 161 [2022-11-16 02:05:21,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 02:05:21,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 02:05:21,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 02:05:21,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 02:05:21,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:05:20" (1/1) ... [2022-11-16 02:05:21,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:05:20" (1/1) ... [2022-11-16 02:05:21,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:05:20" (1/1) ... [2022-11-16 02:05:21,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:05:20" (1/1) ... [2022-11-16 02:05:21,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:05:20" (1/1) ... [2022-11-16 02:05:21,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:05:20" (1/1) ... [2022-11-16 02:05:21,065 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:05:20" (1/1) ... [2022-11-16 02:05:21,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:05:20" (1/1) ... [2022-11-16 02:05:21,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 02:05:21,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 02:05:21,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 02:05:21,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 02:05:21,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:05:20" (1/1) ... [2022-11-16 02:05:21,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 02:05:21,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:05:21,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 02:05:21,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 02:05:21,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 02:05:21,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 02:05:21,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 02:05:21,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 02:05:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 02:05:21,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 02:05:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 02:05:21,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 02:05:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 02:05:21,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 02:05:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 02:05:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 02:05:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 02:05:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 02:05:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 02:05:21,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 02:05:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 02:05:21,142 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 02:05:21,266 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 02:05:21,267 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 02:05:21,503 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 02:05:21,566 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 02:05:21,566 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 02:05:21,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 02:05:21 BoogieIcfgContainer [2022-11-16 02:05:21,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 02:05:21,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 02:05:21,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 02:05:21,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 02:05:21,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 02:05:20" (1/3) ... [2022-11-16 02:05:21,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b3d0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:05:21, skipping insertion in model container [2022-11-16 02:05:21,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:05:20" (2/3) ... [2022-11-16 02:05:21,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b3d0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:05:21, skipping insertion in model container [2022-11-16 02:05:21,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 02:05:21" (3/3) ... [2022-11-16 02:05:21,581 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-send-receive.wvr.c [2022-11-16 02:05:21,586 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 02:05:21,592 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 02:05:21,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 02:05:21,593 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 02:05:21,649 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 02:05:21,702 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 02:05:21,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-16 02:05:21,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:05:21,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-16 02:05:21,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-16 02:05:21,772 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-16 02:05:21,790 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2022-11-16 02:05:21,794 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;@f111548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 02:05:21,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 02:05:21,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:05:21,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:05:21,988 INFO L85 PathProgramCache]: Analyzing trace with hash -441405193, now seen corresponding path program 1 times [2022-11-16 02:05:21,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:05:21,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294530592] [2022-11-16 02:05:21,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:05:21,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:05:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:05:22,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:05:22,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:05:22,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294530592] [2022-11-16 02:05:22,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294530592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 02:05:22,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 02:05:22,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 02:05:22,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710632317] [2022-11-16 02:05:22,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 02:05:22,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 02:05:22,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:05:22,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 02:05:22,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 02:05:22,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:22,225 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:05:22,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:05:22,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:22,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:22,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 02:05:22,249 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:05:22,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:05:22,250 INFO L85 PathProgramCache]: Analyzing trace with hash 222128385, now seen corresponding path program 1 times [2022-11-16 02:05:22,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:05:22,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811316662] [2022-11-16 02:05:22,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:05:22,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:05:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:05:22,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:05:22,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:05:22,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811316662] [2022-11-16 02:05:22,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811316662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 02:05:22,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 02:05:22,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 02:05:22,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918951475] [2022-11-16 02:05:22,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 02:05:22,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 02:05:22,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:05:22,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 02:05:22,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 02:05:22,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:22,633 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:05:22,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 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) [2022-11-16 02:05:22,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:22,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:22,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:22,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:22,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 02:05:22,694 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:05:22,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:05:22,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1140175980, now seen corresponding path program 1 times [2022-11-16 02:05:22,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:05:22,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299573710] [2022-11-16 02:05:22,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:05:22,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:05:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:05:22,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:05:22,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:05:22,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299573710] [2022-11-16 02:05:22,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299573710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 02:05:22,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 02:05:22,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 02:05:22,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390505346] [2022-11-16 02:05:22,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 02:05:22,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 02:05:22,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:05:22,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 02:05:22,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 02:05:22,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:22,808 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:05:22,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:05:22,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:22,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:22,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:22,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:22,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:22,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:22,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 02:05:22,898 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:05:22,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:05:22,898 INFO L85 PathProgramCache]: Analyzing trace with hash 513170262, now seen corresponding path program 1 times [2022-11-16 02:05:22,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:05:22,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797689038] [2022-11-16 02:05:22,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:05:22,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:05:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:05:23,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 02:05:23,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:05:23,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797689038] [2022-11-16 02:05:23,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797689038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 02:05:23,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 02:05:23,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 02:05:23,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165697962] [2022-11-16 02:05:23,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 02:05:23,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 02:05:23,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:05:23,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 02:05:23,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 02:05:23,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:23,116 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:05:23,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:05:23,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:23,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:23,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:23,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:23,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:23,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:23,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:23,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:23,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 02:05:23,242 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:05:23,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:05:23,243 INFO L85 PathProgramCache]: Analyzing trace with hash -148320880, now seen corresponding path program 2 times [2022-11-16 02:05:23,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:05:23,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009899410] [2022-11-16 02:05:23,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:05:23,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:05:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:05:23,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:05:23,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:05:23,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009899410] [2022-11-16 02:05:23,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009899410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 02:05:23,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 02:05:23,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 02:05:23,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308471664] [2022-11-16 02:05:23,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 02:05:23,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 02:05:23,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:05:23,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 02:05:23,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 02:05:23,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:23,407 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:05:23,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:05:23,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:23,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:23,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:23,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:23,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:23,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 02:05:23,530 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:05:23,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:05:23,531 INFO L85 PathProgramCache]: Analyzing trace with hash 905039029, now seen corresponding path program 1 times [2022-11-16 02:05:23,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:05:23,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242666642] [2022-11-16 02:05:23,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:05:23,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:05:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:05:23,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:05:23,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:05:23,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242666642] [2022-11-16 02:05:23,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242666642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 02:05:23,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 02:05:23,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 02:05:23,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568822177] [2022-11-16 02:05:23,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 02:05:23,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 02:05:23,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:05:23,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 02:05:23,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 02:05:23,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:23,726 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:05:23,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:05:23,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:23,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:23,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:23,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:23,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:23,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:24,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:24,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:24,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:24,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 02:05:24,051 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:05:24,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:05:24,052 INFO L85 PathProgramCache]: Analyzing trace with hash -2142082411, now seen corresponding path program 1 times [2022-11-16 02:05:24,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:05:24,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743861992] [2022-11-16 02:05:24,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:05:24,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:05:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:05:24,183 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 02:05:24,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:05:24,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743861992] [2022-11-16 02:05:24,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743861992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 02:05:24,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 02:05:24,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 02:05:24,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750042538] [2022-11-16 02:05:24,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 02:05:24,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 02:05:24,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:05:24,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 02:05:24,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 02:05:24,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:24,193 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:05:24,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:05:24,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:24,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:24,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:24,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:24,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:24,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:24,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:24,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:24,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:24,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:24,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:24,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:24,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:24,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:24,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 02:05:24,375 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:05:24,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:05:24,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1230737775, now seen corresponding path program 2 times [2022-11-16 02:05:24,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:05:24,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105897480] [2022-11-16 02:05:24,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:05:24,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:05:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:05:24,535 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 02:05:24,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:05:24,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105897480] [2022-11-16 02:05:24,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105897480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 02:05:24,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 02:05:24,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 02:05:24,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397185070] [2022-11-16 02:05:24,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 02:05:24,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 02:05:24,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:05:24,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 02:05:24,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 02:05:24,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:24,537 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:05:24,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:05:24,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:24,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:24,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:24,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:24,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:24,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:24,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:24,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:24,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 02:05:24,684 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:05:24,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:05:24,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1208543774, now seen corresponding path program 1 times [2022-11-16 02:05:24,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:05:24,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427423363] [2022-11-16 02:05:24,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:05:24,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:05:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:05:25,042 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 65 proven. 31 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-16 02:05:25,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:05:25,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427423363] [2022-11-16 02:05:25,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427423363] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:05:25,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026173860] [2022-11-16 02:05:25,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:05:25,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:05:25,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:05:25,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:05:25,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 02:05:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:05:25,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 02:05:25,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:05:25,823 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 59 proven. 31 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-16 02:05:25,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:05:26,572 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 38 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:05:26,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026173860] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:05:26,572 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:05:26,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 17] total 39 [2022-11-16 02:05:26,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117266991] [2022-11-16 02:05:26,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:05:26,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-16 02:05:26,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:05:26,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-16 02:05:26,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=1241, Unknown=0, NotChecked=0, Total=1482 [2022-11-16 02:05:26,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:26,576 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:05:26,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 9.051282051282051) internal successors, (353), 39 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:05:26,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:26,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:26,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:26,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:26,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:26,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:26,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:26,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:26,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:27,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:27,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:27,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:27,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:27,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:27,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:27,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:27,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:27,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 02:05:27,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 02:05:27,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-16 02:05:27,512 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:05:27,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:05:27,512 INFO L85 PathProgramCache]: Analyzing trace with hash -133103110, now seen corresponding path program 3 times [2022-11-16 02:05:27,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:05:27,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457029112] [2022-11-16 02:05:27,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:05:27,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:05:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:05:27,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 02:05:27,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:05:27,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457029112] [2022-11-16 02:05:27,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457029112] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:05:27,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793140675] [2022-11-16 02:05:27,813 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 02:05:27,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:05:27,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:05:27,814 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:05:27,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 02:05:27,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 02:05:27,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:05:27,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-16 02:05:27,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:05:28,389 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 02:05:28,664 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 02:05:28,727 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 02:05:28,775 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 02:05:28,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2022-11-16 02:05:28,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:05:28,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:05:29,343 WARN L833 $PredicateComparison]: unable to prove that (or (<= c_~n~0 c_~front~0) (<= (+ c_~back~0 1) c_~front~0) (let ((.cse1 (+ c_~queue~0.offset (* c_~front~0 4))) (.cse2 (+ c_~queue~0.offset (* c_~back~0 4)))) (and (forall ((v_ArrVal_185 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185) c_~queue~0.base))) (or (<= 0 (+ c_~sum~0 (select .cse0 .cse1))) (not (= (select .cse0 .cse2) 1))))) (forall ((v_ArrVal_185 (Array Int Int))) (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185) c_~queue~0.base))) (or (<= (+ c_~sum~0 (select .cse3 .cse1)) 1) (not (= (select .cse3 .cse2) 1))))))) (< c_~front~0 0)) is different from false [2022-11-16 02:05:30,034 WARN L833 $PredicateComparison]: unable to prove that (or (<= c_~n~0 c_~front~0) (<= (+ c_~back~0 1) c_~front~0) (< c_~front~0 0) (let ((.cse1 (+ (* c_~back~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (.cse2 (+ (* c_~front~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (and (forall ((v_ArrVal_184 (Array Int Int)) (v_ArrVal_183 (Array Int Int)) (v_ArrVal_185 (Array Int Int))) (let ((.cse0 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_183) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_184) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (or (not (= (select .cse0 .cse1) 1)) (<= 0 (+ c_~sum~0 (select .cse0 .cse2)))))) (forall ((v_ArrVal_184 (Array Int Int)) (v_ArrVal_183 (Array Int Int)) (v_ArrVal_185 (Array Int Int))) (let ((.cse3 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_183) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_184) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (or (not (= (select .cse3 .cse1) 1)) (<= (+ c_~sum~0 (select .cse3 .cse2)) 1))))))) is different from false [2022-11-16 02:05:30,255 WARN L833 $PredicateComparison]: unable to prove that (or (< (+ |c_ULTIMATE.start_create_fresh_int_array_~i~0#1| 1) |c_ULTIMATE.start_create_fresh_int_array_~size#1|) (<= c_~n~0 c_~front~0) (<= (+ c_~back~0 1) c_~front~0) (< c_~front~0 0) (let ((.cse1 (+ (* c_~back~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (.cse2 (+ (* c_~front~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (and (forall ((v_ArrVal_184 (Array Int Int)) (v_ArrVal_183 (Array Int Int)) (v_ArrVal_185 (Array Int Int))) (let ((.cse0 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_183) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_184) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (or (not (= (select .cse0 .cse1) 1)) (<= 0 (+ c_~sum~0 (select .cse0 .cse2)))))) (forall ((v_ArrVal_184 (Array Int Int)) (v_ArrVal_183 (Array Int Int)) (v_ArrVal_185 (Array Int Int))) (let ((.cse3 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_183) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_184) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_185) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (or (not (= (select .cse3 .cse1) 1)) (<= (+ c_~sum~0 (select .cse3 .cse2)) 1))))))) is different from false [2022-11-16 02:05:30,290 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:05:30,290 INFO L350 Elim1Store]: Elim1 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 68 treesize of output 56 [2022-11-16 02:05:30,300 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:05:30,300 INFO L350 Elim1Store]: Elim1 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 1308 treesize of output 1256 [2022-11-16 02:05:30,312 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:05:30,312 INFO L350 Elim1Store]: Elim1 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 1244 treesize of output 1064 [2022-11-16 02:05:30,324 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:05:30,325 INFO L350 Elim1Store]: Elim1 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 1052 treesize of output 968 [2022-11-16 02:05:30,338 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:05:30,339 INFO L350 Elim1Store]: Elim1 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 722 treesize of output 686 [2022-11-16 02:05:30,863 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:05:30,863 INFO L350 Elim1Store]: Elim1 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 68 treesize of output 56 [2022-11-16 02:05:30,875 INFO L321 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-11-16 02:05:30,876 INFO L350 Elim1Store]: Elim1 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 2636 treesize of output 2512 [2022-11-16 02:05:30,912 INFO L321 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-11-16 02:05:30,913 INFO L350 Elim1Store]: Elim1 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 2508 treesize of output 2416 [2022-11-16 02:05:30,948 INFO L321 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-11-16 02:05:30,949 INFO L350 Elim1Store]: Elim1 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 2412 treesize of output 2032 [2022-11-16 02:05:31,004 INFO L321 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-11-16 02:05:31,004 INFO L350 Elim1Store]: Elim1 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 2028 treesize of output 1840 [2022-11-16 02:05:31,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:05:31,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793140675] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:05:31,690 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:05:31,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 26, 22] total 50 [2022-11-16 02:05:31,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241840378] [2022-11-16 02:05:31,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:05:31,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-16 02:05:31,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:05:31,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-16 02:05:31,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=467, Invalid=1666, Unknown=41, NotChecked=276, Total=2450 [2022-11-16 02:05:31,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:31,692 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:05:31,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 6.04) internal successors, (302), 50 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:05:31,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:31,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:31,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:31,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:31,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:31,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:31,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:31,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:31,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-11-16 02:05:31,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:35,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:35,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:35,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:35,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:35,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:35,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:35,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:35,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:35,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-16 02:05:35,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-16 02:05:35,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 02:05:35,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:05:35,778 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:05:35,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:05:35,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1048598083, now seen corresponding path program 2 times [2022-11-16 02:05:35,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:05:35,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507905793] [2022-11-16 02:05:35,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:05:35,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:05:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:05:36,384 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 53 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:05:36,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:05:36,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507905793] [2022-11-16 02:05:36,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507905793] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:05:36,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421956264] [2022-11-16 02:05:36,385 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 02:05:36,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:05:36,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:05:36,386 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:05:36,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 02:05:36,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 02:05:36,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:05:36,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-16 02:05:36,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:05:37,022 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 63 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 02:05:37,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:05:37,667 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 63 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 02:05:37,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421956264] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:05:37,668 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:05:37,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 17, 15] total 48 [2022-11-16 02:05:37,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312270354] [2022-11-16 02:05:37,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:05:37,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-16 02:05:37,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:05:37,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-16 02:05:37,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=394, Invalid=1862, Unknown=0, NotChecked=0, Total=2256 [2022-11-16 02:05:37,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:37,669 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:05:37,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 7.75) internal successors, (372), 48 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:05:37,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:37,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:37,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:37,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:37,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:37,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:37,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:37,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:37,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-11-16 02:05:37,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-11-16 02:05:37,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-16 02:05:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-16 02:05:39,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-16 02:05:39,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 02:05:39,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:05:39,348 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:05:39,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:05:39,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1663155519, now seen corresponding path program 3 times [2022-11-16 02:05:39,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:05:39,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831064374] [2022-11-16 02:05:39,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:05:39,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:05:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:05:40,496 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:05:40,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:05:40,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831064374] [2022-11-16 02:05:40,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831064374] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:05:40,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597468412] [2022-11-16 02:05:40,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 02:05:40,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:05:40,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:05:40,498 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:05:40,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 02:05:40,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 02:05:40,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:05:40,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 72 conjunts are in the unsatisfiable core [2022-11-16 02:05:40,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:05:41,291 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 02:05:41,616 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 02:05:41,686 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 02:05:41,751 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 02:05:42,325 INFO L321 Elim1Store]: treesize reduction 48, result has 12.7 percent of original size [2022-11-16 02:05:42,325 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 20 [2022-11-16 02:05:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:05:42,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:05:43,199 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~back~0 1))) (or (<= .cse0 c_~front~0) (<= c_~n~0 .cse0) (< c_~front~0 0) (let ((.cse8 (* c_~front~0 4)) (.cse7 (* c_~back~0 4))) (let ((.cse2 (+ c_~queue~0.offset .cse7)) (.cse4 (+ c_~queue~0.offset .cse8)) (.cse5 (+ c_~queue~0.offset .cse8 4)) (.cse3 (+ c_~queue~0.offset .cse7 4))) (and (forall ((v_ArrVal_262 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_262) c_~queue~0.base))) (or (not (= (select .cse1 .cse2) 1)) (not (= (+ (select .cse1 .cse3) 1) 0)) (<= 0 (+ c_~sum~0 (select .cse1 .cse4) (select .cse1 .cse5)))))) (forall ((v_ArrVal_262 (Array Int Int))) (let ((.cse6 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_262) c_~queue~0.base))) (or (not (= (select .cse6 .cse2) 1)) (<= (+ c_~sum~0 (select .cse6 .cse4) (select .cse6 .cse5)) 1) (not (= (+ (select .cse6 .cse3) 1) 0)))))))))) is different from false [2022-11-16 02:05:43,308 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse8 (+ c_~back~0 1))) (or (let ((.cse7 (* c_~front~0 4)) (.cse6 (* c_~back~0 4))) (let ((.cse3 (+ c_~queue~0.offset .cse6 4)) (.cse1 (+ c_~queue~0.offset .cse7)) (.cse2 (+ c_~queue~0.offset .cse7 4)) (.cse4 (+ c_~queue~0.offset .cse6))) (and (forall ((v_ArrVal_261 (Array Int Int)) (v_ArrVal_262 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_261) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_262) c_~queue~0.base))) (or (<= (+ (select .cse0 .cse1) c_~sum~0 (select .cse0 .cse2)) 1) (not (= (+ (select .cse0 .cse3) 1) 0)) (not (= (select .cse0 .cse4) 1))))) (forall ((v_ArrVal_261 (Array Int Int)) (v_ArrVal_262 (Array Int Int))) (let ((.cse5 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_261) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_262) c_~queue~0.base))) (or (not (= (+ (select .cse5 .cse3) 1) 0)) (<= 0 (+ (select .cse5 .cse1) c_~sum~0 (select .cse5 .cse2))) (not (= (select .cse5 .cse4) 1)))))))) (<= .cse8 c_~front~0) (<= c_~n~0 .cse8) (< c_~front~0 0))) is different from false [2022-11-16 02:05:43,470 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~back~0 1))) (or (<= .cse0 c_~front~0) (<= c_~n~0 .cse0) (let ((.cse8 (* c_~front~0 4)) (.cse7 (* c_~back~0 4))) (let ((.cse2 (+ c_~queue~0.offset .cse7 4)) (.cse4 (+ c_~queue~0.offset .cse8)) (.cse5 (+ c_~queue~0.offset .cse8 4)) (.cse3 (+ c_~queue~0.offset .cse7))) (and (forall ((v_ArrVal_261 (Array Int Int)) (v_ArrVal_260 (Array Int Int)) (v_ArrVal_262 (Array Int Int))) (let ((.cse1 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_260) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_261) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_262) c_~queue~0.base))) (or (not (= (+ (select .cse1 .cse2) 1) 0)) (not (= (select .cse1 .cse3) 1)) (<= 0 (+ c_~sum~0 (select .cse1 .cse4) (select .cse1 .cse5)))))) (forall ((v_ArrVal_261 (Array Int Int)) (v_ArrVal_260 (Array Int Int)) (v_ArrVal_262 (Array Int Int))) (let ((.cse6 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_260) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_261) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_262) c_~queue~0.base))) (or (not (= (+ (select .cse6 .cse2) 1) 0)) (<= (+ c_~sum~0 (select .cse6 .cse4) (select .cse6 .cse5)) 1) (not (= (select .cse6 .cse3) 1)))))))) (< c_~front~0 0))) is different from false [2022-11-16 02:05:43,844 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~back~0 1))) (or (<= .cse0 c_~front~0) (<= c_~n~0 .cse0) (let ((.cse7 (* c_~front~0 4)) (.cse8 (* c_~back~0 4))) (let ((.cse4 (+ .cse8 4 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (.cse5 (+ .cse8 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (.cse2 (+ .cse7 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (.cse3 (+ .cse7 4 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (and (forall ((v_ArrVal_261 (Array Int Int)) (v_ArrVal_260 (Array Int Int)) (v_ArrVal_262 (Array Int Int))) (let ((.cse1 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_260) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_261) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_262) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (or (<= 0 (+ c_~sum~0 (select .cse1 .cse2) (select .cse1 .cse3))) (not (= (+ (select .cse1 .cse4) 1) 0)) (not (= (select .cse1 .cse5) 1))))) (forall ((v_ArrVal_261 (Array Int Int)) (v_ArrVal_260 (Array Int Int)) (v_ArrVal_262 (Array Int Int))) (let ((.cse6 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_260) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_261) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_262) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (or (not (= (+ (select .cse6 .cse4) 1) 0)) (not (= (select .cse6 .cse5) 1)) (<= (+ c_~sum~0 (select .cse6 .cse2) (select .cse6 .cse3)) 1))))))) (< c_~front~0 0))) is different from false [2022-11-16 02:05:43,888 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~back~0 1))) (or (<= .cse0 c_~front~0) (<= c_~n~0 .cse0) (< |c_ULTIMATE.start_create_fresh_int_array_~i~0#1| |c_ULTIMATE.start_create_fresh_int_array_~size#1|) (let ((.cse7 (* c_~front~0 4)) (.cse8 (* c_~back~0 4))) (let ((.cse4 (+ .cse8 4 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (.cse5 (+ .cse8 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (.cse2 (+ .cse7 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (.cse3 (+ .cse7 4 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (and (forall ((v_ArrVal_261 (Array Int Int)) (v_ArrVal_260 (Array Int Int)) (v_ArrVal_262 (Array Int Int))) (let ((.cse1 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_260) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_261) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_262) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (or (<= 0 (+ c_~sum~0 (select .cse1 .cse2) (select .cse1 .cse3))) (not (= (+ (select .cse1 .cse4) 1) 0)) (not (= (select .cse1 .cse5) 1))))) (forall ((v_ArrVal_261 (Array Int Int)) (v_ArrVal_260 (Array Int Int)) (v_ArrVal_262 (Array Int Int))) (let ((.cse6 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_260) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_261) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_262) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (or (not (= (+ (select .cse6 .cse4) 1) 0)) (not (= (select .cse6 .cse5) 1)) (<= (+ c_~sum~0 (select .cse6 .cse2) (select .cse6 .cse3)) 1))))))) (< c_~front~0 0))) is different from false [2022-11-16 02:05:44,140 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~back~0 1))) (or (< (+ |c_ULTIMATE.start_create_fresh_int_array_~i~0#1| 1) |c_ULTIMATE.start_create_fresh_int_array_~size#1|) (<= .cse0 c_~front~0) (<= c_~n~0 .cse0) (let ((.cse7 (* c_~front~0 4)) (.cse8 (* c_~back~0 4))) (let ((.cse4 (+ .cse8 4 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (.cse5 (+ .cse8 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (.cse2 (+ .cse7 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (.cse3 (+ .cse7 4 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (and (forall ((v_ArrVal_261 (Array Int Int)) (v_ArrVal_260 (Array Int Int)) (v_ArrVal_262 (Array Int Int))) (let ((.cse1 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_260) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_261) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_262) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (or (<= 0 (+ c_~sum~0 (select .cse1 .cse2) (select .cse1 .cse3))) (not (= (+ (select .cse1 .cse4) 1) 0)) (not (= (select .cse1 .cse5) 1))))) (forall ((v_ArrVal_261 (Array Int Int)) (v_ArrVal_260 (Array Int Int)) (v_ArrVal_262 (Array Int Int))) (let ((.cse6 (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_260) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_261) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_262) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (or (not (= (+ (select .cse6 .cse4) 1) 0)) (not (= (select .cse6 .cse5) 1)) (<= (+ c_~sum~0 (select .cse6 .cse2) (select .cse6 .cse3)) 1))))))) (< c_~front~0 0))) is different from false [2022-11-16 02:05:44,193 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:05:44,193 INFO L350 Elim1Store]: Elim1 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 135 treesize of output 99 [2022-11-16 02:05:44,226 INFO L321 Elim1Store]: treesize reduction 14, result has 73.6 percent of original size [2022-11-16 02:05:44,227 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 4642 treesize of output 4408 [2022-11-16 02:05:44,252 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 02:05:44,267 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:05:44,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3500 treesize of output 3330 [2022-11-16 02:05:44,318 INFO L321 Elim1Store]: treesize reduction 14, result has 73.6 percent of original size [2022-11-16 02:05:44,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 4162 treesize of output 3368 [2022-11-16 02:05:44,367 INFO L321 Elim1Store]: treesize reduction 14, result has 73.6 percent of original size [2022-11-16 02:05:44,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 3330 treesize of output 2952 [2022-11-16 02:05:46,047 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:05:46,048 INFO L350 Elim1Store]: Elim1 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 135 treesize of output 99 [2022-11-16 02:05:46,086 INFO L321 Elim1Store]: treesize reduction 44, result has 17.0 percent of original size [2022-11-16 02:05:46,086 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 1138 treesize of output 1078 [2022-11-16 02:05:46,108 INFO L321 Elim1Store]: treesize reduction 44, result has 17.0 percent of original size [2022-11-16 02:05:46,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1070 treesize of output 870 [2022-11-16 02:05:46,140 INFO L321 Elim1Store]: treesize reduction 44, result has 17.0 percent of original size [2022-11-16 02:05:46,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 862 treesize of output 818 [2022-11-16 02:05:46,161 INFO L321 Elim1Store]: treesize reduction 44, result has 17.0 percent of original size [2022-11-16 02:05:46,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 810 treesize of output 714 [2022-11-16 02:05:47,094 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2022-11-16 02:05:47,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597468412] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:05:47,095 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:05:47,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 32, 28] total 80 [2022-11-16 02:05:47,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163473178] [2022-11-16 02:05:47,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:05:47,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-11-16 02:05:47,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:05:47,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-11-16 02:05:47,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=681, Invalid=4717, Unknown=28, NotChecked=894, Total=6320 [2022-11-16 02:05:47,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:47,098 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:05:47,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 4.375) internal successors, (350), 80 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:05:47,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:47,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:47,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:47,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:47,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:47,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:47,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:47,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:47,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-11-16 02:05:47,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-11-16 02:05:47,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-11-16 02:05:47,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:57,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:05:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:05:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:05:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:05:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:05:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-16 02:05:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-11-16 02:05:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 02:05:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-11-16 02:05:57,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 02:05:57,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 02:05:57,513 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:05:57,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:05:57,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1541658173, now seen corresponding path program 4 times [2022-11-16 02:05:57,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:05:57,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33531201] [2022-11-16 02:05:57,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:05:57,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:05:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:05:58,111 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 02:05:58,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:05:58,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33531201] [2022-11-16 02:05:58,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33531201] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:05:58,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425511483] [2022-11-16 02:05:58,111 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 02:05:58,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:05:58,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:05:58,112 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) [2022-11-16 02:05:58,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 02:05:58,203 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 02:05:58,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:05:58,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-16 02:05:58,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:05:59,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 02:05:59,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 41 [2022-11-16 02:05:59,548 INFO L321 Elim1Store]: treesize reduction 58, result has 10.8 percent of original size [2022-11-16 02:05:59,548 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 20 [2022-11-16 02:05:59,592 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:05:59,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:06:00,237 INFO L321 Elim1Store]: treesize reduction 24, result has 63.1 percent of original size [2022-11-16 02:06:00,237 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 136 treesize of output 110 [2022-11-16 02:06:00,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2022-11-16 02:06:00,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-16 02:06:02,472 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:06:02,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425511483] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:06:02,473 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:06:02,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 28, 28] total 66 [2022-11-16 02:06:02,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599614135] [2022-11-16 02:06:02,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:06:02,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-16 02:06:02,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:06:02,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-16 02:06:02,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=3904, Unknown=35, NotChecked=0, Total=4290 [2022-11-16 02:06:02,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:02,482 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:06:02,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 5.075757575757576) internal successors, (335), 66 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:06:02,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:02,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:02,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:02,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:06:02,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:02,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:02,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:02,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:02,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-11-16 02:06:02,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-11-16 02:06:02,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-16 02:06:02,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-11-16 02:06:02,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:06:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:06:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-11-16 02:06:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:06:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-11-16 02:06:15,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-11-16 02:06:15,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 02:06:15,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:06:15,517 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:06:15,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:06:15,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1676028228, now seen corresponding path program 5 times [2022-11-16 02:06:15,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:06:15,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943234006] [2022-11-16 02:06:15,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:06:15,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:06:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:06:16,010 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 163 proven. 191 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 02:06:16,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:06:16,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943234006] [2022-11-16 02:06:16,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943234006] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:06:16,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10726093] [2022-11-16 02:06:16,010 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 02:06:16,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:06:16,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:06:16,011 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:06:16,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 02:06:16,135 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2022-11-16 02:06:16,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:06:16,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 02:06:16,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:06:16,558 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 207 proven. 56 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-16 02:06:16,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:06:17,017 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 72 proven. 191 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-16 02:06:17,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10726093] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:06:17,017 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:06:17,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20, 20] total 55 [2022-11-16 02:06:17,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653805396] [2022-11-16 02:06:17,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:06:17,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-16 02:06:17,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:06:17,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-16 02:06:17,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=409, Invalid=2561, Unknown=0, NotChecked=0, Total=2970 [2022-11-16 02:06:17,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:17,019 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:06:17,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 7.636363636363637) internal successors, (420), 55 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:06:17,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:17,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:17,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:17,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:06:17,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:17,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:17,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:17,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:17,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:06:17,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-11-16 02:06:17,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:06:17,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-11-16 02:06:17,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2022-11-16 02:06:17,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:20,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:20,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:20,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:06:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:06:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-11-16 02:06:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:06:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-11-16 02:06:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-11-16 02:06:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-11-16 02:06:20,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 02:06:20,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:06:20,425 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:06:20,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:06:20,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1576497468, now seen corresponding path program 6 times [2022-11-16 02:06:20,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:06:20,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388420338] [2022-11-16 02:06:20,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:06:20,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:06:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:06:20,932 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 5 proven. 41 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 02:06:20,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:06:20,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388420338] [2022-11-16 02:06:20,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388420338] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:06:20,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969969763] [2022-11-16 02:06:20,932 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 02:06:20,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:06:20,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:06:20,940 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:06:20,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 02:06:21,048 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-11-16 02:06:21,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:06:21,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-16 02:06:21,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:06:22,019 INFO L321 Elim1Store]: treesize reduction 38, result has 7.3 percent of original size [2022-11-16 02:06:22,019 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 21 [2022-11-16 02:06:22,044 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 5 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:06:22,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:06:22,578 INFO L321 Elim1Store]: treesize reduction 66, result has 55.1 percent of original size [2022-11-16 02:06:22,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 107 treesize of output 110 [2022-11-16 02:06:24,089 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 5 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:06:24,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969969763] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:06:24,090 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:06:24,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 26, 26] total 56 [2022-11-16 02:06:24,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893320372] [2022-11-16 02:06:24,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:06:24,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-11-16 02:06:24,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:06:24,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-11-16 02:06:24,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=2591, Unknown=0, NotChecked=0, Total=3080 [2022-11-16 02:06:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:24,097 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:06:24,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 6.910714285714286) internal successors, (387), 56 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:06:24,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:24,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:24,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:24,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:06:24,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:24,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:24,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:24,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:24,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:06:24,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-11-16 02:06:24,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:06:24,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-11-16 02:06:24,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2022-11-16 02:06:24,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2022-11-16 02:06:24,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:27,114 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| c_~queue~0.base)) (.cse2 (* c_~front~0 4))) (let ((.cse5 (<= c_~n~0 c_~back~0)) (.cse4 (+ c_~queue~0.offset .cse2)) (.cse6 (not (= (+ (select .cse3 (+ c_~queue~0.offset (* c_~back~0 4))) 1) 0)))) (and (or (let ((.cse0 (select .cse3 .cse4)) (.cse1 (+ c_~queue~0.offset .cse2 4))) (and (forall ((v_ArrVal_299 (Array Int Int))) (<= 0 (+ c_~sum~0 .cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_299) c_~queue~0.base) .cse1)))) (forall ((v_ArrVal_299 (Array Int Int))) (<= (+ c_~sum~0 .cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_299) c_~queue~0.base) .cse1)) 1)))) .cse5 (<= c_~back~0 c_~front~0) .cse6 (< c_~front~0 0)) (or .cse5 (and (forall ((v_ArrVal_299 (Array Int Int))) (<= 0 (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_299) c_~queue~0.base) .cse4)))) (forall ((v_ArrVal_299 (Array Int Int))) (<= (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_299) c_~queue~0.base) .cse4)) 1))) (< c_~back~0 0) .cse6) (<= 0 c_~sum~0) (<= c_~sum~0 1)))) is different from false [2022-11-16 02:06:29,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:06:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:06:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-11-16 02:06:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:06:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-11-16 02:06:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-11-16 02:06:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-11-16 02:06:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-11-16 02:06:30,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 02:06:30,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 02:06:30,199 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:06:30,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:06:30,199 INFO L85 PathProgramCache]: Analyzing trace with hash 2075642806, now seen corresponding path program 7 times [2022-11-16 02:06:30,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:06:30,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988300723] [2022-11-16 02:06:30,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:06:30,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:06:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:06:31,031 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 15 proven. 31 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 02:06:31,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:06:31,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988300723] [2022-11-16 02:06:31,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988300723] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:06:31,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162915719] [2022-11-16 02:06:31,031 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 02:06:31,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:06:31,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:06:31,033 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:06:31,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 02:06:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:06:31,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 81 conjunts are in the unsatisfiable core [2022-11-16 02:06:31,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:06:33,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 02:06:33,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 59 [2022-11-16 02:06:33,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 02:06:33,325 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 02:06:33,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 02:06:33,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 02:06:33,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 02:06:33,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 02:06:33,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 02:06:33,331 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:06:33,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 58 treesize of output 27 [2022-11-16 02:06:33,380 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 5 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:06:33,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:06:33,466 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~queue~0.offset (* c_~front~0 4)))) (and (forall ((v_ArrVal_420 (Array Int Int))) (<= (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse0)) 1)) (forall ((v_ArrVal_420 (Array Int Int))) (<= 0 (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse0)))))) is different from false [2022-11-16 02:06:33,525 WARN L833 $PredicateComparison]: unable to prove that (or (let ((.cse0 (+ c_~queue~0.offset (* c_~front~0 4)))) (and (forall ((v_ArrVal_420 (Array Int Int))) (<= (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse0)) 1)) (forall ((v_ArrVal_420 (Array Int Int))) (<= 0 (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse0)))))) (= |c_thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| 0) (not (= (select (select |c_#memory_int| c_~queue~0.base) (+ c_~queue~0.offset (* c_~back~0 4))) 1))) is different from false [2022-11-16 02:06:33,532 WARN L833 $PredicateComparison]: unable to prove that (or (let ((.cse0 (+ c_~queue~0.offset (* c_~front~0 4)))) (and (forall ((v_ArrVal_420 (Array Int Int))) (<= (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse0)) 1)) (forall ((v_ArrVal_420 (Array Int Int))) (<= 0 (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse0)))))) (= |c_thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| 0) (not (= (select (select |c_#memory_int| c_~queue~0.base) (+ c_~queue~0.offset (* c_~back~0 4))) 1))) is different from false [2022-11-16 02:06:33,923 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| c_~queue~0.base))) (or (forall ((v_~back~0_109 Int)) (or (not (= 1 (select .cse0 (+ c_~queue~0.offset (* v_~back~0_109 4))))) (<= c_~n~0 v_~back~0_109) (not (<= (+ c_~back~0 1) v_~back~0_109)))) (<= c_~n~0 c_~front~0) (let ((.cse4 (* c_~front~0 4))) (let ((.cse1 (select .cse0 (+ c_~queue~0.offset .cse4))) (.cse2 (select .cse0 (+ c_~queue~0.offset .cse4 4))) (.cse3 (+ c_~queue~0.offset .cse4 8))) (and (forall ((v_ArrVal_420 (Array Int Int))) (<= (+ c_~sum~0 .cse1 .cse2 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse3)) 1)) (forall ((v_ArrVal_420 (Array Int Int))) (<= 0 (+ c_~sum~0 .cse1 .cse2 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse3))))))) (<= c_~back~0 c_~front~0) (not (= (+ (select .cse0 (+ c_~queue~0.offset (* c_~back~0 4))) 1) 0)) (< c_~front~0 0))) is different from false [2022-11-16 02:06:34,023 INFO L321 Elim1Store]: treesize reduction 74, result has 52.9 percent of original size [2022-11-16 02:06:34,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 160 [2022-11-16 02:06:34,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 56 [2022-11-16 02:06:34,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 49 [2022-11-16 02:06:37,522 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 5 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2022-11-16 02:06:37,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162915719] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:06:37,523 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:06:37,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 33, 33] total 78 [2022-11-16 02:06:37,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355759094] [2022-11-16 02:06:37,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:06:37,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-11-16 02:06:37,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:06:37,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-11-16 02:06:37,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=467, Invalid=4946, Unknown=5, NotChecked=588, Total=6006 [2022-11-16 02:06:37,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:37,525 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:06:37,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 5.102564102564102) internal successors, (398), 78 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:06:37,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:37,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:37,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:37,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:06:37,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:37,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:37,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:37,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:37,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:06:37,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-11-16 02:06:37,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:06:37,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 162 states. [2022-11-16 02:06:37,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-11-16 02:06:37,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-11-16 02:06:37,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-11-16 02:06:37,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:47,733 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse5 (* c_~front~0 4))) (let ((.cse0 (+ c_~queue~0.offset .cse5))) (and (forall ((v_ArrVal_420 (Array Int Int))) (<= (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse0)) 1)) (forall ((v_ArrVal_420 (Array Int Int))) (<= 0 (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse0)))) (let ((.cse1 (select |c_#memory_int| c_~queue~0.base))) (or (forall ((v_~back~0_109 Int)) (or (not (= 1 (select .cse1 (+ c_~queue~0.offset (* v_~back~0_109 4))))) (<= c_~n~0 v_~back~0_109) (not (<= (+ c_~back~0 1) v_~back~0_109)))) (<= c_~n~0 c_~front~0) (let ((.cse2 (select .cse1 .cse0)) (.cse3 (select .cse1 (+ c_~queue~0.offset .cse5 4))) (.cse4 (+ c_~queue~0.offset .cse5 8))) (and (forall ((v_ArrVal_420 (Array Int Int))) (<= (+ c_~sum~0 .cse2 .cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse4)) 1)) (forall ((v_ArrVal_420 (Array Int Int))) (<= 0 (+ c_~sum~0 .cse2 .cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse4)))))) (<= c_~back~0 c_~front~0) (not (= (+ (select .cse1 (+ c_~queue~0.offset (* c_~back~0 4))) 1) 0)) (< c_~front~0 0)))))) is different from false [2022-11-16 02:06:51,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:06:51,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:51,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:06:51,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:06:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:06:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:06:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:06:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:06:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:06:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-11-16 02:06:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-11-16 02:06:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-11-16 02:06:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-11-16 02:06:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-11-16 02:06:51,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 02:06:52,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-16 02:06:52,058 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:06:52,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:06:52,058 INFO L85 PathProgramCache]: Analyzing trace with hash 539093304, now seen corresponding path program 8 times [2022-11-16 02:06:52,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:06:52,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550498726] [2022-11-16 02:06:52,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:06:52,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:06:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:06:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 5 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:06:53,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:06:53,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550498726] [2022-11-16 02:06:53,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550498726] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:06:53,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996171460] [2022-11-16 02:06:53,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 02:06:53,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:06:53,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:06:53,952 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:06:53,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 02:06:54,049 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 02:06:54,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:06:54,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 86 conjunts are in the unsatisfiable core [2022-11-16 02:06:54,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:06:54,696 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 02:06:54,958 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 02:06:55,014 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 02:06:55,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 02:06:55,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 42 [2022-11-16 02:06:55,987 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:06:55,987 INFO L350 Elim1Store]: Elim1 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 70 treesize of output 18 [2022-11-16 02:06:56,041 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:06:56,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:06:56,223 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse5 (* c_~front~0 4))) (let ((.cse1 (+ c_~queue~0.offset .cse5 8)) (.cse2 (+ c_~queue~0.offset .cse5 4)) (.cse3 (+ c_~queue~0.offset .cse5))) (and (forall ((v_ArrVal_465 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse0 .cse1) c_~sum~0 (select .cse0 .cse2) (select .cse0 .cse3))) 1)) (forall ((v_ArrVal_465 (Array Int Int))) (<= 0 (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse4 .cse1) c_~sum~0 (select .cse4 .cse2) (select .cse4 .cse3)))))))) is different from false [2022-11-16 02:06:56,299 WARN L833 $PredicateComparison]: unable to prove that (or (let ((.cse5 (* c_~front~0 4))) (let ((.cse1 (+ c_~queue~0.offset .cse5 8)) (.cse2 (+ c_~queue~0.offset .cse5 4)) (.cse3 (+ c_~queue~0.offset .cse5))) (and (forall ((v_ArrVal_465 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse0 .cse1) c_~sum~0 (select .cse0 .cse2) (select .cse0 .cse3))) 1)) (forall ((v_ArrVal_465 (Array Int Int))) (<= 0 (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse4 .cse1) c_~sum~0 (select .cse4 .cse2) (select .cse4 .cse3)))))))) (= |c_thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| 0) (not (= (select (select |c_#memory_int| c_~queue~0.base) (+ c_~queue~0.offset (* c_~back~0 4))) 1))) is different from false [2022-11-16 02:06:56,307 WARN L833 $PredicateComparison]: unable to prove that (or (let ((.cse5 (* c_~front~0 4))) (let ((.cse1 (+ c_~queue~0.offset .cse5 8)) (.cse2 (+ c_~queue~0.offset .cse5 4)) (.cse3 (+ c_~queue~0.offset .cse5))) (and (forall ((v_ArrVal_465 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse0 .cse1) c_~sum~0 (select .cse0 .cse2) (select .cse0 .cse3))) 1)) (forall ((v_ArrVal_465 (Array Int Int))) (<= 0 (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse4 .cse1) c_~sum~0 (select .cse4 .cse2) (select .cse4 .cse3)))))))) (= |c_thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| 0) (not (= (select (select |c_#memory_int| c_~queue~0.base) (+ c_~queue~0.offset (* c_~back~0 4))) 1))) is different from false [2022-11-16 02:06:56,425 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~back~0 1)) (.cse1 (select |c_#memory_int| c_~queue~0.base)) (.cse2 (* c_~back~0 4))) (or (< .cse0 0) (not (= (select .cse1 (+ c_~queue~0.offset .cse2 4)) 1)) (let ((.cse8 (* c_~front~0 4))) (let ((.cse4 (+ c_~queue~0.offset .cse8 8)) (.cse5 (+ c_~queue~0.offset .cse8 4)) (.cse6 (+ c_~queue~0.offset .cse8))) (and (forall ((v_ArrVal_465 (Array Int Int))) (<= (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse3 .cse4) c_~sum~0 (select .cse3 .cse5) (select .cse3 .cse6))) 1)) (forall ((v_ArrVal_465 (Array Int Int))) (<= 0 (let ((.cse7 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse7 .cse4) c_~sum~0 (select .cse7 .cse5) (select .cse7 .cse6)))))))) (<= c_~n~0 .cse0) (not (= (+ (select .cse1 (+ c_~queue~0.offset .cse2)) 1) 0)))) is different from false [2022-11-16 02:06:56,606 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~back~0 2)) (.cse7 (select |c_#memory_int| c_~queue~0.base)) (.cse8 (* c_~back~0 4))) (or (<= c_~n~0 .cse0) (let ((.cse6 (* c_~front~0 4))) (let ((.cse2 (+ c_~queue~0.offset .cse6 8)) (.cse3 (+ c_~queue~0.offset .cse6 4)) (.cse4 (+ c_~queue~0.offset .cse6))) (and (forall ((v_ArrVal_465 (Array Int Int))) (<= (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse1 .cse2) c_~sum~0 (select .cse1 .cse3) (select .cse1 .cse4))) 1)) (forall ((v_ArrVal_465 (Array Int Int))) (<= 0 (let ((.cse5 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse5 .cse2) c_~sum~0 (select .cse5 .cse3) (select .cse5 .cse4)))))))) (not (= (+ (select .cse7 (+ c_~queue~0.offset .cse8 4)) 1) 0)) (not (= (select .cse7 (+ c_~queue~0.offset .cse8 8)) 1)) (= (mod |c_thread2Thread1of1ForFork2_~b~0#1| 256) 0) (< .cse0 0) (not (= (select .cse7 (+ c_~queue~0.offset .cse8)) 1)))) is different from false [2022-11-16 02:06:56,775 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~back~0 2)) (.cse7 (select |c_#memory_int| c_~queue~0.base)) (.cse8 (* c_~back~0 4))) (or (<= c_~n~0 .cse0) (let ((.cse6 (* c_~front~0 4))) (let ((.cse2 (+ c_~queue~0.offset .cse6 8)) (.cse3 (+ c_~queue~0.offset .cse6 4)) (.cse4 (+ c_~queue~0.offset .cse6))) (and (forall ((v_ArrVal_465 (Array Int Int))) (<= (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse1 .cse2) c_~sum~0 (select .cse1 .cse3) (select .cse1 .cse4))) 1)) (forall ((v_ArrVal_465 (Array Int Int))) (<= 0 (let ((.cse5 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse5 .cse2) c_~sum~0 (select .cse5 .cse3) (select .cse5 .cse4)))))))) (not (= (+ (select .cse7 (+ c_~queue~0.offset .cse8 4)) 1) 0)) (not (= (select .cse7 (+ c_~queue~0.offset .cse8 8)) 1)) (= |c_thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| 0) (= (mod |c_thread2Thread1of1ForFork2_~b~0#1| 256) 0) (< .cse0 0) (not (= (select .cse7 (+ c_~queue~0.offset .cse8)) 1)))) is different from false [2022-11-16 02:06:56,809 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| c_~queue~0.base)) (.cse7 (* c_~back~0 4))) (or (<= c_~n~0 (+ c_~back~0 2)) (let ((.cse5 (* c_~front~0 4))) (let ((.cse1 (+ c_~queue~0.offset .cse5 8)) (.cse2 (+ c_~queue~0.offset .cse5 4)) (.cse3 (+ c_~queue~0.offset .cse5))) (and (forall ((v_ArrVal_465 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse0 .cse1) c_~sum~0 (select .cse0 .cse2) (select .cse0 .cse3))) 1)) (forall ((v_ArrVal_465 (Array Int Int))) (<= 0 (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse4 .cse1) c_~sum~0 (select .cse4 .cse2) (select .cse4 .cse3)))))))) (not (= (+ (select .cse6 (+ c_~queue~0.offset .cse7 4)) 1) 0)) (not (= (select .cse6 (+ c_~queue~0.offset .cse7 8)) 1)) (< c_~back~0 0) (= (mod |c_thread2Thread1of1ForFork2_~b~0#1| 256) 0) (not (= (select .cse6 (+ c_~queue~0.offset .cse7)) 1)))) is different from false [2022-11-16 02:06:58,563 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:06:58,564 INFO L350 Elim1Store]: Elim1 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 191 treesize of output 131 [2022-11-16 02:06:58,602 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:06:58,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 2900 treesize of output 2760 [2022-11-16 02:06:58,657 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:06:58,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 1542 treesize of output 1462 [2022-11-16 02:06:58,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2038 treesize of output 1398 [2022-11-16 02:06:58,731 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:06:58,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1800 treesize of output 1520 [2022-11-16 02:07:12,900 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:07:12,900 INFO L350 Elim1Store]: Elim1 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 191 treesize of output 131 [2022-11-16 02:07:12,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 02:07:12,925 INFO L321 Elim1Store]: treesize reduction 108, result has 10.7 percent of original size [2022-11-16 02:07:12,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 376 treesize of output 336 [2022-11-16 02:07:12,952 INFO L321 Elim1Store]: treesize reduction 108, result has 10.7 percent of original size [2022-11-16 02:07:12,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 324 treesize of output 256 [2022-11-16 02:07:12,979 INFO L321 Elim1Store]: treesize reduction 108, result has 10.7 percent of original size [2022-11-16 02:07:12,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 187 [2022-11-16 02:07:14,251 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 30 not checked. [2022-11-16 02:07:14,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996171460] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:07:14,252 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:07:14,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 41, 40] total 106 [2022-11-16 02:07:14,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537273140] [2022-11-16 02:07:14,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:07:14,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-11-16 02:07:14,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:07:14,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-11-16 02:07:14,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=802, Invalid=8893, Unknown=35, NotChecked=1400, Total=11130 [2022-11-16 02:07:14,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:07:14,255 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:07:14,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 106 states have (on average 4.028301886792453) internal successors, (427), 106 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:07:14,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:07:14,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:07:14,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:07:14,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:07:14,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:07:14,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:07:14,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:07:14,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:07:14,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:07:14,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:07:14,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:07:14,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 175 states. [2022-11-16 02:07:14,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-11-16 02:07:14,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-11-16 02:07:14,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-11-16 02:07:14,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-11-16 02:07:14,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:07:35,431 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| c_~queue~0.base)) (.cse5 (* c_~back~0 4))) (let ((.cse6 (select .cse4 (+ c_~queue~0.offset .cse5))) (.cse7 (* c_~front~0 4))) (let ((.cse0 (let ((.cse9 (+ c_~queue~0.offset .cse7 8)) (.cse10 (+ c_~queue~0.offset .cse7 4)) (.cse11 (+ c_~queue~0.offset .cse7))) (and (forall ((v_ArrVal_465 (Array Int Int))) (<= (let ((.cse8 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse8 .cse9) c_~sum~0 (select .cse8 .cse10) (select .cse8 .cse11))) 1)) (forall ((v_ArrVal_465 (Array Int Int))) (<= 0 (let ((.cse12 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse12 .cse9) c_~sum~0 (select .cse12 .cse10) (select .cse12 .cse11)))))))) (.cse2 (not (= .cse6 1))) (.cse1 (< c_~back~0 0))) (and (or .cse0 (<= c_~n~0 c_~back~0) .cse1 .cse2) (<= |c_thread2Thread1of1ForFork2_~cond~1#1| 1) (<= 1 |c_thread2Thread1of1ForFork2_~cond~1#1|) (<= c_~v_assert~0 1) (<= 1 |c_thread1Thread1of1ForFork1_~cond~0#1|) (let ((.cse3 (+ c_~back~0 1))) (or (< .cse3 0) (not (= (select .cse4 (+ c_~queue~0.offset .cse5 4)) 1)) .cse0 (<= c_~n~0 .cse3) (not (= (+ .cse6 1) 0)))) (or .cse0 (= |c_thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| 0) .cse2) (<= 1 c_~v_assert~0) (<= (div |c_thread1Thread1of1ForFork1_~cond~0#1| 256) 0) (or (and (<= c_~sum~0 0) (<= 0 (+ c_~sum~0 1)) (not (< |c_ULTIMATE.start_main_~#t3~0#1.base| |c_#StackHeapBarrier|)) (= .cse7 .cse5)) (< 0 c_~back~0) .cse1))))) is different from false [2022-11-16 02:07:47,915 WARN L833 $PredicateComparison]: unable to prove that (and (<= c_~sum~0 0) (<= 0 (+ c_~sum~0 1)) (let ((.cse2 (select |c_#memory_int| c_~queue~0.base))) (or (let ((.cse3 (* c_~front~0 4))) (let ((.cse0 (+ c_~queue~0.offset .cse3 4)) (.cse1 (select .cse2 (+ c_~queue~0.offset .cse3)))) (and (forall ((v_ArrVal_420 (Array Int Int))) (<= (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse0) .cse1) 1)) (forall ((v_ArrVal_420 (Array Int Int))) (<= 0 (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse0) .cse1)))))) (<= c_~n~0 c_~back~0) (< c_~back~0 0) (not (= (select .cse2 (+ c_~queue~0.offset (* c_~back~0 4))) 1)))) (<= 0 c_~sum~0) (<= c_~sum~0 1)) is different from false [2022-11-16 02:07:48,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:07:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:07:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:07:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:07:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:07:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:07:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:07:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:07:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:07:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:07:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:07:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2022-11-16 02:07:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-11-16 02:07:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:07:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-11-16 02:07:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-11-16 02:07:48,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-11-16 02:07:48,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-11-16 02:07:49,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-16 02:07:49,031 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:07:49,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:07:49,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1816520005, now seen corresponding path program 9 times [2022-11-16 02:07:49,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:07:49,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347944642] [2022-11-16 02:07:49,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:07:49,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:07:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:07:49,360 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 261 proven. 160 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-11-16 02:07:49,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:07:49,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347944642] [2022-11-16 02:07:49,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347944642] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:07:49,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212425694] [2022-11-16 02:07:49,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 02:07:49,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:07:49,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:07:49,376 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:07:49,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 02:07:49,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-16 02:07:49,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:07:49,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-16 02:07:49,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:07:49,918 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 319 proven. 88 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-11-16 02:07:49,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:07:50,255 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 72 proven. 335 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-11-16 02:07:50,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212425694] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:07:50,256 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:07:50,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 21, 21] total 43 [2022-11-16 02:07:50,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613756109] [2022-11-16 02:07:50,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:07:50,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-16 02:07:50,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:07:50,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-16 02:07:50,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=1527, Unknown=0, NotChecked=0, Total=1806 [2022-11-16 02:07:50,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:07:50,258 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:07:50,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 10.023255813953488) internal successors, (431), 43 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:07:50,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:07:50,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:07:50,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:07:50,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:07:50,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:07:50,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:07:50,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:07:50,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:07:50,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:07:50,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:07:50,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:07:50,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2022-11-16 02:07:50,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-11-16 02:07:50,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:07:50,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2022-11-16 02:07:50,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-11-16 02:07:50,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-11-16 02:07:50,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:07:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:07:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:07:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:07:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:07:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:07:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:07:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:07:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:07:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:07:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:07:52,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:07:52,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2022-11-16 02:07:52,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-11-16 02:07:52,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:07:52,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-11-16 02:07:52,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-11-16 02:07:52,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2022-11-16 02:07:52,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-11-16 02:07:52,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 02:07:52,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-16 02:07:52,712 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:07:52,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:07:52,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1099515175, now seen corresponding path program 10 times [2022-11-16 02:07:52,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:07:52,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252785905] [2022-11-16 02:07:52,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:07:52,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:07:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:07:53,181 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 105 proven. 69 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 02:07:53,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:07:53,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252785905] [2022-11-16 02:07:53,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252785905] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:07:53,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939694658] [2022-11-16 02:07:53,182 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 02:07:53,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:07:53,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:07:53,183 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:07:53,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-16 02:07:53,285 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 02:07:53,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:07:53,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-16 02:07:53,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:07:53,960 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 85 proven. 89 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 02:07:53,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:07:54,707 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 98 proven. 76 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 02:07:54,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939694658] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:07:54,708 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:07:54,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22, 21] total 60 [2022-11-16 02:07:54,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752392920] [2022-11-16 02:07:54,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:07:54,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-11-16 02:07:54,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:07:54,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-11-16 02:07:54,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=580, Invalid=2960, Unknown=0, NotChecked=0, Total=3540 [2022-11-16 02:07:54,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:07:54,710 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:07:54,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 7.583333333333333) internal successors, (455), 60 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-11-16 02:07:54,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:07:57,710 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (* c_~front~0 4)) (.cse3 (* c_~back~0 4))) (and (or (let ((.cse0 (< 0 c_~front~0)) (.cse1 (< c_~front~0 c_~back~0))) (and (or .cse0 .cse1 (= .cse2 .cse3)) (or (<= c_~sum~0 0) .cse0 .cse1) (or .cse0 (< |c_#StackHeapBarrier| (+ |c_ULTIMATE.start_main_~#t3~0#1.base| 1)) .cse1) (or .cse0 (<= 0 (+ c_~sum~0 1)) .cse1))) (< c_~front~0 0)) (let ((.cse6 (select |c_#memory_int| c_~queue~0.base))) (or (let ((.cse4 (+ c_~queue~0.offset .cse2 4)) (.cse5 (select .cse6 (+ c_~queue~0.offset .cse2)))) (and (forall ((v_ArrVal_420 (Array Int Int))) (<= (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse4) .cse5) 1)) (forall ((v_ArrVal_420 (Array Int Int))) (<= 0 (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_420) c_~queue~0.base) .cse4) .cse5))))) (<= c_~n~0 c_~back~0) (< c_~back~0 0) (not (= (select .cse6 (+ c_~queue~0.offset .cse3)) 1)))) (= c_~sum~0 0))) is different from false [2022-11-16 02:08:02,111 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse9 (select |c_#memory_int| c_~queue~0.base)) (.cse7 (* c_~back~0 4)) (.cse8 (* c_~front~0 4))) (let ((.cse1 (let ((.cse11 (+ c_~queue~0.offset .cse8 8)) (.cse12 (+ c_~queue~0.offset .cse8 4)) (.cse13 (+ c_~queue~0.offset .cse8))) (and (forall ((v_ArrVal_465 (Array Int Int))) (<= (let ((.cse10 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse10 .cse11) c_~sum~0 (select .cse10 .cse12) (select .cse10 .cse13))) 1)) (forall ((v_ArrVal_465 (Array Int Int))) (<= 0 (let ((.cse14 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse14 .cse11) c_~sum~0 (select .cse14 .cse12) (select .cse14 .cse13)))))))) (.cse2 (not (= (+ (select .cse9 (+ c_~queue~0.offset .cse7 4)) 1) 0))) (.cse3 (not (= (select .cse9 (+ c_~queue~0.offset .cse7 8)) 1))) (.cse5 (not (= (select .cse9 (+ c_~queue~0.offset .cse7)) 1))) (.cse0 (<= c_~n~0 (+ c_~back~0 2))) (.cse4 (< c_~back~0 0)) (.cse6 (+ .cse8 (* c_~n~0 4)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (= (mod |c_thread2Thread1of1ForFork2_~b~0#1| 256) 0) .cse5) (<= |c_thread2Thread1of1ForFork2_~cond~1#1| 1) (<= 1 |c_thread2Thread1of1ForFork2_~cond~1#1|) (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#t2~0#1.base|) (<= c_~v_assert~0 1) (<= c_~n~0 |c_ULTIMATE.start_create_fresh_int_array_~size#1|) (<= c_~front~0 c_~back~0) (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#t3~0#1.base|) (<= c_~back~0 c_~front~0) (<= c_~n~0 |c_ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= .cse6 (+ .cse7 (* |c_ULTIMATE.start_create_fresh_int_array_#in~size#1| 4))) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or (and (<= c_~sum~0 0) (<= 0 (+ c_~sum~0 1)) (not (= |c_ULTIMATE.start_main_~#t3~0#1.base| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|)) (= .cse8 .cse7)) .cse0 (< (+ |c_ULTIMATE.start_create_fresh_int_array_~i~0#1| 1) |c_ULTIMATE.start_create_fresh_int_array_~size#1|) .cse4) (<= 1 c_~v_assert~0) (= c_~back~0 c_~front~0) (= (select |c_#valid| |c_ULTIMATE.start_main_~#t3~0#1.base|) 1) (= c_~sum~0 0) (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#t1~0#1.base|) (<= .cse6 (+ (* |c_ULTIMATE.start_create_fresh_int_array_~size#1| 4) .cse7))))) is different from false [2022-11-16 02:08:03,314 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse7 (* c_~front~0 4))) (let ((.cse3 (+ c_~queue~0.offset .cse7 8)) (.cse4 (+ c_~queue~0.offset .cse7 4)) (.cse5 (+ c_~queue~0.offset .cse7))) (and (forall ((v_ArrVal_465 (Array Int Int))) (<= (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse2 .cse3) c_~sum~0 (select .cse2 .cse4) (select .cse2 .cse5))) 1)) (forall ((v_ArrVal_465 (Array Int Int))) (<= 0 (let ((.cse6 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse6 .cse3) c_~sum~0 (select .cse6 .cse4) (select .cse6 .cse5))))))))) (.cse1 (not (= (select (select |c_#memory_int| c_~queue~0.base) (+ c_~queue~0.offset (* c_~back~0 4))) 1)))) (and (or .cse0 (<= c_~n~0 c_~back~0) (< c_~back~0 0) .cse1) (not (<= (mod |c_thread2Thread1of1ForFork2_~cond~1#1| 256) 0)) (or .cse0 (= |c_thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| 0) .cse1))) is different from false [2022-11-16 02:08:03,319 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse10 (* c_~front~0 4))) (let ((.cse6 (+ c_~queue~0.offset .cse10 8)) (.cse7 (+ c_~queue~0.offset .cse10 4)) (.cse8 (+ c_~queue~0.offset .cse10))) (let ((.cse0 (forall ((v_ArrVal_465 (Array Int Int))) (<= (let ((.cse9 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse9 .cse6) c_~sum~0 (select .cse9 .cse7) (select .cse9 .cse8))) 1))) (.cse4 (forall ((v_ArrVal_465 (Array Int Int))) (<= 0 (let ((.cse5 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_465) c_~queue~0.base))) (+ (select .cse5 .cse6) c_~sum~0 (select .cse5 .cse7) (select .cse5 .cse8))))))) (and .cse0 (let ((.cse1 (+ c_~back~0 1)) (.cse2 (select |c_#memory_int| c_~queue~0.base)) (.cse3 (* c_~back~0 4))) (or (< .cse1 0) (not (= (select .cse2 (+ c_~queue~0.offset .cse3 4)) 1)) (and .cse0 .cse4) (<= c_~n~0 .cse1) (not (= (+ (select .cse2 (+ c_~queue~0.offset .cse3)) 1) 0)))) .cse4)))) is different from false [2022-11-16 02:08:03,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:08:03,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-11-16 02:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-11-16 02:08:03,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-16 02:08:03,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:08:03,811 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:08:03,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:08:03,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1849543589, now seen corresponding path program 11 times [2022-11-16 02:08:03,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:08:03,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591673778] [2022-11-16 02:08:03,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:08:03,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:08:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:08:06,269 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 12 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:08:06,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:08:06,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591673778] [2022-11-16 02:08:06,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591673778] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:08:06,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793601431] [2022-11-16 02:08:06,270 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 02:08:06,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:08:06,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:08:06,281 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:08:06,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-16 02:08:06,414 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-11-16 02:08:06,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:08:06,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 86 conjunts are in the unsatisfiable core [2022-11-16 02:08:06,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:08:06,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 [2022-11-16 02:08:06,534 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 02:08:06,534 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 11 [2022-11-16 02:08:07,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2022-11-16 02:08:07,753 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:08:07,753 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 24 [2022-11-16 02:08:07,787 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 7 proven. 125 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 02:08:07,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:08:08,542 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:08:08,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 233 treesize of output 344 [2022-11-16 02:08:08,553 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:08:08,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 107 treesize of output 80 [2022-11-16 02:08:08,560 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:08:08,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 53 [2022-11-16 02:08:09,627 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 18 proven. 70 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-16 02:08:09,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793601431] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:08:09,627 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:08:09,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 27, 21] total 75 [2022-11-16 02:08:09,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730303741] [2022-11-16 02:08:09,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:08:09,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2022-11-16 02:08:09,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:08:09,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2022-11-16 02:08:09,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=5153, Unknown=29, NotChecked=0, Total=5550 [2022-11-16 02:08:09,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:08:09,630 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:08:09,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 5.8933333333333335) internal successors, (442), 75 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:08:09,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:08:09,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:08:09,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:08:09,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:08:09,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:08:09,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:08:09,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:08:09,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:08:09,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:08:09,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:08:09,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:08:09,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2022-11-16 02:08:09,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2022-11-16 02:08:09,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:08:09,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-11-16 02:08:09,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-11-16 02:08:09,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 164 states. [2022-11-16 02:08:09,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2022-11-16 02:08:09,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-11-16 02:08:09,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 199 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-11-16 02:08:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-11-16 02:08:25,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-11-16 02:08:25,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-11-16 02:08:25,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-11-16 02:08:25,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-11-16 02:08:25,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-16 02:08:25,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-11-16 02:08:25,431 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:08:25,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:08:25,431 INFO L85 PathProgramCache]: Analyzing trace with hash 822355646, now seen corresponding path program 12 times [2022-11-16 02:08:25,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:08:25,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032818896] [2022-11-16 02:08:25,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:08:25,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:08:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:08:25,972 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 181 proven. 177 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 02:08:25,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:08:25,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032818896] [2022-11-16 02:08:25,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032818896] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:08:25,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729646910] [2022-11-16 02:08:25,973 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 02:08:25,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:08:25,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:08:25,980 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:08:26,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-16 02:08:26,206 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-11-16 02:08:26,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:08:26,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-16 02:08:26,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:08:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 213 proven. 149 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 02:08:27,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:08:28,030 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 214 proven. 148 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 02:08:28,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729646910] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:08:28,031 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:08:28,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 25] total 71 [2022-11-16 02:08:28,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710025254] [2022-11-16 02:08:28,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:08:28,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-11-16 02:08:28,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:08:28,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-11-16 02:08:28,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=866, Invalid=4104, Unknown=0, NotChecked=0, Total=4970 [2022-11-16 02:08:28,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:08:28,033 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:08:28,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 7.830985915492958) internal successors, (556), 71 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:08:28,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:08:28,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:08:28,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:08:28,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:08:28,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:08:28,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:08:28,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:08:28,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:08:28,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:08:28,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:08:28,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:08:28,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 199 states. [2022-11-16 02:08:28,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2022-11-16 02:08:28,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:08:28,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-11-16 02:08:28,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-11-16 02:08:28,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-11-16 02:08:28,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-11-16 02:08:28,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-11-16 02:08:28,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-11-16 02:08:28,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:08:36,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:08:36,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 201 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 186 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-11-16 02:08:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-11-16 02:08:36,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-11-16 02:08:36,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:08:36,908 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:08:36,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:08:36,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2008869450, now seen corresponding path program 13 times [2022-11-16 02:08:36,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:08:36,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818946761] [2022-11-16 02:08:36,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:08:36,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:08:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:08:41,705 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 52 proven. 167 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:08:41,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:08:41,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818946761] [2022-11-16 02:08:41,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818946761] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:08:41,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348657764] [2022-11-16 02:08:41,705 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 02:08:41,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:08:41,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:08:41,706 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:08:41,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-16 02:08:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:08:41,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 113 conjunts are in the unsatisfiable core [2022-11-16 02:08:41,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:08:44,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 02:08:44,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 83 [2022-11-16 02:08:45,059 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:08:45,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 104 treesize of output 28 [2022-11-16 02:08:45,168 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 2 proven. 217 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:08:45,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:08:45,411 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse5 (* c_~front~0 4))) (let ((.cse1 (+ c_~queue~0.offset .cse5 4)) (.cse2 (+ c_~queue~0.offset .cse5 8)) (.cse3 (+ c_~queue~0.offset .cse5))) (and (forall ((v_ArrVal_696 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_696) c_~queue~0.base))) (+ c_~sum~0 (select .cse0 .cse1) (select .cse0 .cse2) (select .cse0 .cse3))) 1)) (forall ((v_ArrVal_696 (Array Int Int))) (<= 0 (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_696) c_~queue~0.base))) (+ c_~sum~0 (select .cse4 .cse1) (select .cse4 .cse2) (select .cse4 .cse3)))))))) is different from false [2022-11-16 02:08:45,636 WARN L833 $PredicateComparison]: unable to prove that (or (let ((.cse5 (* c_~front~0 4))) (let ((.cse1 (+ c_~queue~0.offset .cse5 4)) (.cse2 (+ c_~queue~0.offset .cse5 8)) (.cse3 (+ c_~queue~0.offset .cse5))) (and (forall ((v_ArrVal_696 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_696) c_~queue~0.base))) (+ c_~sum~0 (select .cse0 .cse1) (select .cse0 .cse2) (select .cse0 .cse3))) 1)) (forall ((v_ArrVal_696 (Array Int Int))) (<= 0 (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_696) c_~queue~0.base))) (+ c_~sum~0 (select .cse4 .cse1) (select .cse4 .cse2) (select .cse4 .cse3)))))))) (= |c_thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| 0) (not (= (select (select |c_#memory_int| c_~queue~0.base) (+ c_~queue~0.offset (* c_~back~0 4))) 1))) is different from false [2022-11-16 02:08:45,765 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~back~0 1)) (.cse1 (select |c_#memory_int| c_~queue~0.base)) (.cse2 (* c_~back~0 4))) (or (< .cse0 0) (not (= (select .cse1 (+ c_~queue~0.offset .cse2 4)) 1)) (let ((.cse8 (* c_~front~0 4))) (let ((.cse4 (+ c_~queue~0.offset .cse8 4)) (.cse5 (+ c_~queue~0.offset .cse8 8)) (.cse6 (+ c_~queue~0.offset .cse8))) (and (forall ((v_ArrVal_696 (Array Int Int))) (<= (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_696) c_~queue~0.base))) (+ c_~sum~0 (select .cse3 .cse4) (select .cse3 .cse5) (select .cse3 .cse6))) 1)) (forall ((v_ArrVal_696 (Array Int Int))) (<= 0 (let ((.cse7 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_696) c_~queue~0.base))) (+ c_~sum~0 (select .cse7 .cse4) (select .cse7 .cse5) (select .cse7 .cse6)))))))) (<= c_~n~0 .cse0) (not (= (+ (select .cse1 (+ c_~queue~0.offset .cse2)) 1) 0)))) is different from false [2022-11-16 02:08:46,698 INFO L321 Elim1Store]: treesize reduction 140, result has 58.9 percent of original size [2022-11-16 02:08:46,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 290 treesize of output 324 [2022-11-16 02:08:46,710 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:08:46,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 99 treesize of output 78 [2022-11-16 02:08:46,717 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:08:46,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 78 treesize of output 57 [2022-11-16 02:08:49,279 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 3 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 48 not checked. [2022-11-16 02:08:49,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348657764] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:08:49,279 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:08:49,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 41, 41] total 119 [2022-11-16 02:08:49,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196190013] [2022-11-16 02:08:49,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:08:49,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-11-16 02:08:49,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:08:49,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-11-16 02:08:49,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1236, Invalid=12100, Unknown=16, NotChecked=690, Total=14042 [2022-11-16 02:08:49,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:08:49,282 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:08:49,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 119 states have (on average 4.65546218487395) internal successors, (554), 119 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 201 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 186 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-11-16 02:08:49,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-11-16 02:08:49,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-11-16 02:08:49,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-11-16 02:08:49,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:09:05,589 WARN L833 $PredicateComparison]: unable to prove that (and (let ((.cse0 (+ c_~back~0 1)) (.cse1 (select |c_#memory_int| c_~queue~0.base)) (.cse2 (* c_~back~0 4))) (or (< .cse0 0) (not (= (select .cse1 (+ c_~queue~0.offset .cse2 4)) 1)) (let ((.cse8 (* c_~front~0 4))) (let ((.cse4 (+ c_~queue~0.offset .cse8 4)) (.cse5 (+ c_~queue~0.offset .cse8 8)) (.cse6 (+ c_~queue~0.offset .cse8))) (and (forall ((v_ArrVal_696 (Array Int Int))) (<= (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_696) c_~queue~0.base))) (+ c_~sum~0 (select .cse3 .cse4) (select .cse3 .cse5) (select .cse3 .cse6))) 1)) (forall ((v_ArrVal_696 (Array Int Int))) (<= 0 (let ((.cse7 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_696) c_~queue~0.base))) (+ c_~sum~0 (select .cse7 .cse4) (select .cse7 .cse5) (select .cse7 .cse6)))))))) (<= c_~n~0 .cse0) (not (= (+ (select .cse1 (+ c_~queue~0.offset .cse2)) 1) 0)))) (<= |c_thread2Thread1of1ForFork2_~cond~1#1| 1) (<= 1 |c_thread2Thread1of1ForFork2_~cond~1#1|)) is different from false [2022-11-16 02:09:06,660 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse10 (* c_~front~0 4))) (let ((.cse6 (+ c_~queue~0.offset .cse10 4)) (.cse7 (+ c_~queue~0.offset .cse10 8)) (.cse8 (+ c_~queue~0.offset .cse10))) (let ((.cse3 (forall ((v_ArrVal_696 (Array Int Int))) (<= (let ((.cse9 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_696) c_~queue~0.base))) (+ c_~sum~0 (select .cse9 .cse6) (select .cse9 .cse7) (select .cse9 .cse8))) 1))) (.cse4 (forall ((v_ArrVal_696 (Array Int Int))) (<= 0 (let ((.cse5 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_696) c_~queue~0.base))) (+ c_~sum~0 (select .cse5 .cse6) (select .cse5 .cse7) (select .cse5 .cse8))))))) (and (let ((.cse0 (+ c_~back~0 1)) (.cse1 (select |c_#memory_int| c_~queue~0.base)) (.cse2 (* c_~back~0 4))) (or (< .cse0 0) (not (= (select .cse1 (+ c_~queue~0.offset .cse2 4)) 1)) (and .cse3 .cse4) (<= c_~n~0 .cse0) (not (= (+ (select .cse1 (+ c_~queue~0.offset .cse2)) 1) 0)))) .cse3 .cse4)))) is different from false [2022-11-16 02:09:32,071 WARN L833 $PredicateComparison]: unable to prove that (and (<= |c_thread2Thread1of1ForFork2_~cond~1#1| 1) (<= 1 |c_thread2Thread1of1ForFork2_~cond~1#1|) (<= c_~v_assert~0 1) (<= 1 |c_thread1Thread1of1ForFork1_~cond~0#1|) (<= 1 c_~v_assert~0) (let ((.cse0 (+ c_~back~0 2)) (.cse8 (select |c_#memory_int| c_~queue~0.base)) (.cse9 (* c_~back~0 4))) (or (<= c_~n~0 .cse0) (let ((.cse7 (* c_~front~0 4))) (let ((.cse1 (select .cse8 (+ c_~queue~0.offset .cse7))) (.cse3 (+ c_~queue~0.offset .cse7 4)) (.cse4 (+ c_~queue~0.offset .cse7 12)) (.cse5 (+ c_~queue~0.offset .cse7 8))) (and (forall ((v_ArrVal_696 (Array Int Int))) (<= (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_696) c_~queue~0.base))) (+ c_~sum~0 .cse1 (select .cse2 .cse3) (select .cse2 .cse4) (select .cse2 .cse5))) 1)) (forall ((v_ArrVal_696 (Array Int Int))) (<= 0 (let ((.cse6 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_696) c_~queue~0.base))) (+ c_~sum~0 .cse1 (select .cse6 .cse3) (select .cse6 .cse4) (select .cse6 .cse5)))))))) (not (= (+ (select .cse8 (+ c_~queue~0.offset .cse9 4)) 1) 0)) (not (= (select .cse8 (+ c_~queue~0.offset .cse9 8)) 1)) (< .cse0 0) (not (= (select .cse8 (+ c_~queue~0.offset .cse9)) 1)))) (<= 0 c_~sum~0) (<= c_~sum~0 1) (<= (div |c_thread1Thread1of1ForFork1_~cond~0#1| 256) 0)) is different from false [2022-11-16 02:09:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:09:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:09:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:09:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:09:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:09:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:09:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:09:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:09:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:09:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:09:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:09:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-11-16 02:09:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-11-16 02:09:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:09:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-11-16 02:09:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-11-16 02:09:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2022-11-16 02:09:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2022-11-16 02:09:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-11-16 02:09:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-11-16 02:09:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2022-11-16 02:09:33,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-11-16 02:09:33,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-11-16 02:09:33,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:09:33,474 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:09:33,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:09:33,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2087628797, now seen corresponding path program 14 times [2022-11-16 02:09:33,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:09:33,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427370878] [2022-11-16 02:09:33,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:09:33,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:09:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:09:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 100 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:09:37,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:09:37,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427370878] [2022-11-16 02:09:37,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427370878] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:09:37,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390306876] [2022-11-16 02:09:37,601 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 02:09:37,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:09:37,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:09:37,602 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:09:37,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-16 02:09:37,758 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 02:09:37,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:09:37,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 123 conjunts are in the unsatisfiable core [2022-11-16 02:09:37,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:09:41,113 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:09:41,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 126 treesize of output 34 [2022-11-16 02:09:41,266 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 3 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:09:41,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:09:43,135 INFO L321 Elim1Store]: treesize reduction 210, result has 57.4 percent of original size [2022-11-16 02:09:43,136 INFO L350 Elim1Store]: Elim1 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 12 new quantified variables, introduced 66 case distinctions, treesize of input 211 treesize of output 334 [2022-11-16 02:09:45,071 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 3 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:09:45,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390306876] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:09:45,071 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:09:45,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 42, 37] total 118 [2022-11-16 02:09:45,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791129797] [2022-11-16 02:09:45,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:09:45,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 118 states [2022-11-16 02:09:45,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:09:45,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2022-11-16 02:09:45,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2149, Invalid=11657, Unknown=0, NotChecked=0, Total=13806 [2022-11-16 02:09:45,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:09:45,074 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:09:45,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 118 states, 118 states have (on average 5.161016949152542) internal successors, (609), 118 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:09:45,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:09:45,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:09:45,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:09:45,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:09:45,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:09:45,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:09:45,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:09:45,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:09:45,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:09:45,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:09:45,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:09:45,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 202 states. [2022-11-16 02:09:45,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2022-11-16 02:09:45,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:09:45,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-11-16 02:09:45,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-11-16 02:09:45,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 220 states. [2022-11-16 02:09:45,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 160 states. [2022-11-16 02:09:45,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-11-16 02:09:45,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-11-16 02:09:45,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2022-11-16 02:09:45,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 175 states. [2022-11-16 02:09:45,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:10:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:10:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:10:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:10:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:10:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:10:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:10:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:10:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:10:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:10:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:10:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:10:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-11-16 02:10:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-11-16 02:10:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:10:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-11-16 02:10:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-11-16 02:10:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2022-11-16 02:10:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2022-11-16 02:10:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-11-16 02:10:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-11-16 02:10:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2022-11-16 02:10:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-11-16 02:10:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2022-11-16 02:10:09,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-16 02:10:09,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-16 02:10:09,331 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:10:09,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:10:09,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1080975549, now seen corresponding path program 15 times [2022-11-16 02:10:09,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:10:09,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753596192] [2022-11-16 02:10:09,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:10:09,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:10:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:10:10,619 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 11 proven. 191 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-11-16 02:10:10,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:10:10,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753596192] [2022-11-16 02:10:10,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753596192] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:10:10,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164153817] [2022-11-16 02:10:10,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 02:10:10,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:10:10,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:10:10,621 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:10:10,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-16 02:10:11,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-11-16 02:10:11,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:10:11,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 102 conjunts are in the unsatisfiable core [2022-11-16 02:10:11,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:10:12,832 INFO L321 Elim1Store]: treesize reduction 395, result has 3.9 percent of original size [2022-11-16 02:10:12,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 140 treesize of output 49 [2022-11-16 02:10:12,873 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 27 proven. 295 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 02:10:12,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:10:14,238 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:10:14,238 INFO L350 Elim1Store]: Elim1 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 12 new quantified variables, introduced 66 case distinctions, treesize of input 211 treesize of output 544 [2022-11-16 02:10:15,340 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 22 proven. 191 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-11-16 02:10:15,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164153817] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:10:15,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:10:15,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 29, 18] total 54 [2022-11-16 02:10:15,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871340823] [2022-11-16 02:10:15,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:10:15,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-16 02:10:15,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:10:15,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-16 02:10:15,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=2514, Unknown=0, NotChecked=0, Total=2862 [2022-11-16 02:10:15,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:10:15,356 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:10:15,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 8.62962962962963) internal successors, (466), 54 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:10:15,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:10:15,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:10:15,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:10:15,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:10:15,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:10:15,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 202 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 220 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 175 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 231 states. [2022-11-16 02:10:15,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:10:22,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:10:22,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:10:22,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:10:22,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:10:22,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 180 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 237 states. [2022-11-16 02:10:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-16 02:10:22,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-16 02:10:23,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:10:23,072 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:10:23,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:10:23,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1121835118, now seen corresponding path program 16 times [2022-11-16 02:10:23,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:10:23,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814923682] [2022-11-16 02:10:23,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:10:23,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:10:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:10:23,296 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 46 proven. 176 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-11-16 02:10:23,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:10:23,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814923682] [2022-11-16 02:10:23,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814923682] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:10:23,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403475185] [2022-11-16 02:10:23,299 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 02:10:23,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:10:23,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:10:23,300 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:10:23,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-16 02:10:23,422 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 02:10:23,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:10:23,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 02:10:23,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:10:23,559 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 64 proven. 154 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-11-16 02:10:23,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:10:23,986 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 46 proven. 186 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-11-16 02:10:23,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403475185] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 02:10:23,987 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 02:10:23,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 15] total 22 [2022-11-16 02:10:23,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885716295] [2022-11-16 02:10:23,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 02:10:23,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 02:10:23,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 02:10:23,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 02:10:23,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=301, Unknown=0, NotChecked=0, Total=462 [2022-11-16 02:10:23,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:10:23,988 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 02:10:23,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 14.909090909090908) internal successors, (328), 22 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 02:10:23,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:10:23,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:10:23,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:10:23,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:10:23,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:10:23,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:10:23,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 202 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 220 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 163 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 180 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 237 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-11-16 02:10:23,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:10:25,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 180 states. [2022-11-16 02:10:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 237 states. [2022-11-16 02:10:25,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-16 02:10:25,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 02:10:25,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-16 02:10:25,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:10:25,440 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 02:10:25,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 02:10:25,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1950550721, now seen corresponding path program 17 times [2022-11-16 02:10:25,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 02:10:25,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399103458] [2022-11-16 02:10:25,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 02:10:25,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 02:10:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 02:10:28,905 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 57 proven. 267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:10:28,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 02:10:28,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399103458] [2022-11-16 02:10:28,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399103458] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 02:10:28,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410338075] [2022-11-16 02:10:28,906 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 02:10:28,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:10:28,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 02:10:28,907 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 02:10:28,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-16 02:10:29,084 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-11-16 02:10:29,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 02:10:29,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 139 conjunts are in the unsatisfiable core [2022-11-16 02:10:29,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 02:10:29,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 [2022-11-16 02:10:29,146 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 02:10:29,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-16 02:10:29,196 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-16 02:10:29,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 02:10:29,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 02:10:29,606 INFO L321 Elim1Store]: treesize reduction 32, result has 22.0 percent of original size [2022-11-16 02:10:29,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 21 [2022-11-16 02:10:30,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-16 02:10:31,056 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 02:10:31,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-11-16 02:10:31,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-11-16 02:10:33,786 INFO L321 Elim1Store]: treesize reduction 594, result has 3.1 percent of original size [2022-11-16 02:10:33,786 INFO L350 Elim1Store]: Elim1 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 12 new quantified variables, introduced 66 case distinctions, treesize of input 138 treesize of output 52 [2022-11-16 02:10:33,882 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 27 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 02:10:33,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 02:11:18,439 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 02:11:18,439 INFO L350 Elim1Store]: Elim1 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 397 treesize of output 265 [2022-11-16 02:11:18,747 INFO L321 Elim1Store]: treesize reduction 326, result has 46.8 percent of original size [2022-11-16 02:11:18,748 INFO L350 Elim1Store]: Elim1 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 12 new quantified variables, introduced 66 case distinctions, treesize of input 3018 treesize of output 3096 [2022-11-16 02:11:19,207 INFO L321 Elim1Store]: treesize reduction 326, result has 46.8 percent of original size [2022-11-16 02:11:19,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 2810 treesize of output 2456 [2022-11-16 02:11:19,576 INFO L321 Elim1Store]: treesize reduction 326, result has 46.8 percent of original size [2022-11-16 02:11:19,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 2170 treesize of output 2296 [2022-11-16 02:11:19,946 INFO L321 Elim1Store]: treesize reduction 326, result has 46.8 percent of original size [2022-11-16 02:11:19,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 2010 treesize of output 1976 [2022-11-16 02:12:12,593 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-16 02:12:12,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-16 02:12:12,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 02:12:12,799 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-16 02:12:12,802 INFO L158 Benchmark]: Toolchain (without parser) took 412028.53ms. Allocated memory was 166.7MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 138.4MB in the beginning and 491.1MB in the end (delta: -352.7MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-11-16 02:12:12,802 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 166.7MB. Free memory is still 121.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-11-16 02:12:12,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.86ms. Allocated memory was 166.7MB in the beginning and 207.6MB in the end (delta: 40.9MB). Free memory was 138.2MB in the beginning and 177.3MB in the end (delta: -39.1MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. [2022-11-16 02:12:12,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.89ms. Allocated memory is still 207.6MB. Free memory was 177.3MB in the beginning and 175.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-11-16 02:12:12,802 INFO L158 Benchmark]: Boogie Preprocessor took 33.54ms. Allocated memory is still 207.6MB. Free memory was 175.4MB in the beginning and 173.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-11-16 02:12:12,802 INFO L158 Benchmark]: RCFGBuilder took 506.31ms. Allocated memory is still 207.6MB. Free memory was 173.8MB in the beginning and 151.2MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-11-16 02:12:12,802 INFO L158 Benchmark]: TraceAbstraction took 411225.90ms. Allocated memory was 207.6MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 150.2MB in the beginning and 491.1MB in the end (delta: -340.9MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-11-16 02:12:12,803 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 166.7MB. Free memory is still 121.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 217.86ms. Allocated memory was 166.7MB in the beginning and 207.6MB in the end (delta: 40.9MB). Free memory was 138.2MB in the beginning and 177.3MB in the end (delta: -39.1MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.89ms. Allocated memory is still 207.6MB. Free memory was 177.3MB in the beginning and 175.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.54ms. Allocated memory is still 207.6MB. Free memory was 175.4MB in the beginning and 173.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 506.31ms. Allocated memory is still 207.6MB. Free memory was 173.8MB in the beginning and 151.2MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 411225.90ms. Allocated memory was 207.6MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 150.2MB in the beginning and 491.1MB in the end (delta: -340.9MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-16 02:12:12,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-11-16 02:12:13,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...