/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSmt.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/triangular-longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-d6e1636 [2023-01-10 14:57:00,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-10 14:57:00,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-10 14:57:00,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-10 14:57:00,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-10 14:57:00,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-10 14:57:00,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-10 14:57:00,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-10 14:57:00,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-10 14:57:00,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-10 14:57:00,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-10 14:57:00,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-10 14:57:00,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-10 14:57:00,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-10 14:57:00,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-10 14:57:00,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-10 14:57:00,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-10 14:57:00,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-10 14:57:00,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-10 14:57:00,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-10 14:57:00,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-10 14:57:00,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-10 14:57:00,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-10 14:57:00,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-10 14:57:00,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-10 14:57:00,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-10 14:57:00,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-10 14:57:00,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-10 14:57:00,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-10 14:57:00,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-10 14:57:00,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-10 14:57:00,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-10 14:57:00,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-10 14:57:00,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-10 14:57:00,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-10 14:57:00,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-10 14:57:00,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-10 14:57:00,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-10 14:57:00,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-10 14:57:00,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-10 14:57:00,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-10 14:57:00,689 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSmt.epf [2023-01-10 14:57:00,708 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-10 14:57:00,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-10 14:57:00,712 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-01-10 14:57:00,713 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-01-10 14:57:00,714 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-10 14:57:00,714 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-10 14:57:00,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-10 14:57:00,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-10 14:57:00,715 INFO L138 SettingsManager]: * Use SBE=true [2023-01-10 14:57:00,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-10 14:57:00,715 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-10 14:57:00,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-10 14:57:00,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-10 14:57:00,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-10 14:57:00,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-10 14:57:00,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-10 14:57:00,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-10 14:57:00,716 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-10 14:57:00,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-10 14:57:00,716 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-10 14:57:00,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-10 14:57:00,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-10 14:57:00,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-10 14:57:00,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-10 14:57:00,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-10 14:57:00,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 14:57:00,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-10 14:57:00,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-10 14:57:00,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-10 14:57:00,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-10 14:57:00,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-10 14:57:00,718 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-01-10 14:57:00,718 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-01-10 14:57:00,718 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-01-10 14:57:00,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-01-10 14:57:00,718 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2023-01-10 14:57:00,718 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-01-10 14:57:00,718 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-01-10 14:57:00,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-10 14:57:00,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-10 14:57:00,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-10 14:57:00,914 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-10 14:57:00,915 INFO L275 PluginConnector]: CDTParser initialized [2023-01-10 14:57:00,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/triangular-longest-1.i [2023-01-10 14:57:01,992 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-10 14:57:02,191 INFO L351 CDTParser]: Found 1 translation units. [2023-01-10 14:57:02,192 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longest-1.i [2023-01-10 14:57:02,214 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91683b0a4/43c763604ac747fb93ccc1d5435a7366/FLAG8241c5044 [2023-01-10 14:57:02,223 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91683b0a4/43c763604ac747fb93ccc1d5435a7366 [2023-01-10 14:57:02,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-10 14:57:02,226 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-10 14:57:02,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-10 14:57:02,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-10 14:57:02,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-10 14:57:02,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:57:02" (1/1) ... [2023-01-10 14:57:02,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7634da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:02, skipping insertion in model container [2023-01-10 14:57:02,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:57:02" (1/1) ... [2023-01-10 14:57:02,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-10 14:57:02,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-10 14:57:02,516 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longest-1.i[30962,30975] [2023-01-10 14:57:02,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 14:57:02,525 INFO L203 MainTranslator]: Completed pre-run [2023-01-10 14:57:02,547 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longest-1.i[30962,30975] [2023-01-10 14:57:02,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 14:57:02,564 WARN L663 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-10 14:57:02,564 WARN L663 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-10 14:57:02,569 INFO L208 MainTranslator]: Completed translation [2023-01-10 14:57:02,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:02 WrapperNode [2023-01-10 14:57:02,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-10 14:57:02,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-10 14:57:02,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-10 14:57:02,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-10 14:57:02,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:02" (1/1) ... [2023-01-10 14:57:02,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:02" (1/1) ... [2023-01-10 14:57:02,598 INFO L138 Inliner]: procedures = 169, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2023-01-10 14:57:02,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-10 14:57:02,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-10 14:57:02,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-10 14:57:02,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-10 14:57:02,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:02" (1/1) ... [2023-01-10 14:57:02,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:02" (1/1) ... [2023-01-10 14:57:02,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:02" (1/1) ... [2023-01-10 14:57:02,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:02" (1/1) ... [2023-01-10 14:57:02,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:02" (1/1) ... [2023-01-10 14:57:02,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:02" (1/1) ... [2023-01-10 14:57:02,612 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:02" (1/1) ... [2023-01-10 14:57:02,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:02" (1/1) ... [2023-01-10 14:57:02,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-10 14:57:02,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-10 14:57:02,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-10 14:57:02,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-10 14:57:02,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:02" (1/1) ... [2023-01-10 14:57:02,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 14:57:02,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:57:02,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-10 14:57:02,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-10 14:57:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-01-10 14:57:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-01-10 14:57:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-01-10 14:57:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-01-10 14:57:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-10 14:57:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-10 14:57:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-10 14:57:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-10 14:57:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-10 14:57:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-10 14:57:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-10 14:57:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-10 14:57:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-10 14:57:02,670 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-10 14:57:02,750 INFO L236 CfgBuilder]: Building ICFG [2023-01-10 14:57:02,751 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-10 14:57:02,883 INFO L277 CfgBuilder]: Performing block encoding [2023-01-10 14:57:02,886 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-10 14:57:02,887 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-01-10 14:57:02,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:57:02 BoogieIcfgContainer [2023-01-10 14:57:02,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-10 14:57:02,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-10 14:57:02,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-10 14:57:02,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-10 14:57:02,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:57:02" (1/3) ... [2023-01-10 14:57:02,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f639c08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:57:02, skipping insertion in model container [2023-01-10 14:57:02,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:02" (2/3) ... [2023-01-10 14:57:02,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f639c08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:57:02, skipping insertion in model container [2023-01-10 14:57:02,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:57:02" (3/3) ... [2023-01-10 14:57:02,893 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longest-1.i [2023-01-10 14:57:02,898 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-01-10 14:57:02,904 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-10 14:57:02,904 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-10 14:57:02,904 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-10 14:57:02,955 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-10 14:57:02,985 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 14:57:02,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 14:57:02,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:57:02,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 14:57:03,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-01-10 14:57:03,034 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 14:57:03,038 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-01-10 14:57:03,043 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;@60d5c232, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 14:57:03,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 14:57:03,157 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:57:03,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:57:03,161 INFO L85 PathProgramCache]: Analyzing trace with hash -869864902, now seen corresponding path program 1 times [2023-01-10 14:57:03,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:57:03,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816033920] [2023-01-10 14:57:03,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:57:03,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:57:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:57:03,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:03,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:57:03,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816033920] [2023-01-10 14:57:03,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816033920] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 14:57:03,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 14:57:03,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-10 14:57:03,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911043766] [2023-01-10 14:57:03,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 14:57:03,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-10 14:57:03,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:57:03,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-10 14:57:03,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-10 14:57:03,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:03,715 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:57:03,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 14:57:03,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:03,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:03,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-10 14:57:03,911 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:57:03,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:57:03,911 INFO L85 PathProgramCache]: Analyzing trace with hash -793118376, now seen corresponding path program 1 times [2023-01-10 14:57:03,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:57:03,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877181340] [2023-01-10 14:57:03,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:57:03,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:57:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:57:04,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:04,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:57:04,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877181340] [2023-01-10 14:57:04,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877181340] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:57:04,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750838370] [2023-01-10 14:57:04,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:57:04,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:04,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:57:04,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 14:57:04,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-10 14:57:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:57:04,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-10 14:57:04,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:57:04,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:04,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:57:04,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:04,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750838370] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:57:04,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:57:04,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2023-01-10 14:57:04,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756091831] [2023-01-10 14:57:04,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:57:04,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-01-10 14:57:04,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:57:04,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-01-10 14:57:04,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2023-01-10 14:57:04,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:04,608 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:57:04,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.214285714285714) internal successors, (101), 14 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 14:57:04,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:04,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:04,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-01-10 14:57:04,887 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-01-10 14:57:05,072 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,SelfDestructingSolverStorable1 [2023-01-10 14:57:05,073 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:57:05,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:57:05,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1365384746, now seen corresponding path program 1 times [2023-01-10 14:57:05,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:57:05,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699393461] [2023-01-10 14:57:05,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:57:05,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:57:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:57:05,373 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:05,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:57:05,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699393461] [2023-01-10 14:57:05,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699393461] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:57:05,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103546004] [2023-01-10 14:57:05,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:57:05,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:05,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:57:05,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 14:57:05,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-10 14:57:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:57:05,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 13 conjunts are in the unsatisfiable core [2023-01-10 14:57:05,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:57:05,610 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:05,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:57:05,815 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:05,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103546004] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:57:05,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:57:05,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 22 [2023-01-10 14:57:05,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965111562] [2023-01-10 14:57:05,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:57:05,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-01-10 14:57:05,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:57:05,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-01-10 14:57:05,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2023-01-10 14:57:05,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:05,818 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:57:05,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.409090909090909) internal successors, (141), 22 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 14:57:05,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:05,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-01-10 14:57:05,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:06,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:06,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-01-10 14:57:06,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-01-10 14:57:06,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-10 14:57:06,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:06,581 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:57:06,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:57:06,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1612779726, now seen corresponding path program 2 times [2023-01-10 14:57:06,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:57:06,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967977933] [2023-01-10 14:57:06,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:57:06,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:57:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:57:06,937 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:06,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:57:06,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967977933] [2023-01-10 14:57:06,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967977933] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:57:06,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234716230] [2023-01-10 14:57:06,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 14:57:06,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:06,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:57:06,945 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 14:57:06,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-10 14:57:07,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 14:57:07,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:57:07,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 21 conjunts are in the unsatisfiable core [2023-01-10 14:57:07,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:57:07,261 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:07,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:57:07,778 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:07,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234716230] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:57:07,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:57:07,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 38 [2023-01-10 14:57:07,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708850375] [2023-01-10 14:57:07,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:57:07,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-01-10 14:57:07,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:57:07,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-01-10 14:57:07,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=1100, Unknown=0, NotChecked=0, Total=1406 [2023-01-10 14:57:07,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:07,781 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:57:07,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 38 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 14:57:07,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:07,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-01-10 14:57:07,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-01-10 14:57:07,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:09,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:09,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-01-10 14:57:09,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-01-10 14:57:09,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-01-10 14:57:09,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-01-10 14:57:09,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:09,565 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:57:09,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:57:09,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1005034006, now seen corresponding path program 3 times [2023-01-10 14:57:09,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:57:09,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522613256] [2023-01-10 14:57:09,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:57:09,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:57:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:57:10,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1023 backedges. 0 proven. 1023 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:10,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:57:10,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522613256] [2023-01-10 14:57:10,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522613256] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:57:10,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178282006] [2023-01-10 14:57:10,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-10 14:57:10,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:10,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:57:10,559 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 14:57:10,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-10 14:57:10,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2023-01-10 14:57:10,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:57:10,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 37 conjunts are in the unsatisfiable core [2023-01-10 14:57:10,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:57:11,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1023 backedges. 0 proven. 1023 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:11,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:57:11,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1023 backedges. 0 proven. 1023 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:11,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178282006] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:57:11,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:57:11,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 36] total 49 [2023-01-10 14:57:11,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806451103] [2023-01-10 14:57:11,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:57:11,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-01-10 14:57:11,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:57:11,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-01-10 14:57:11,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=523, Invalid=1829, Unknown=0, NotChecked=0, Total=2352 [2023-01-10 14:57:11,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:11,980 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:57:11,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 5.795918367346939) internal successors, (284), 49 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 14:57:11,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:11,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-01-10 14:57:11,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-01-10 14:57:11,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2023-01-10 14:57:11,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-01-10 14:57:14,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-01-10 14:57:14,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-01-10 14:57:14,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-01-10 14:57:14,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-10 14:57:14,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:14,758 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:57:14,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:57:14,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1768673420, now seen corresponding path program 4 times [2023-01-10 14:57:14,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:57:14,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418204169] [2023-01-10 14:57:14,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:57:14,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:57:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:57:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 2061 backedges. 1888 proven. 172 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-10 14:57:15,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:57:15,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418204169] [2023-01-10 14:57:15,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418204169] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:57:15,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60789647] [2023-01-10 14:57:15,829 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-10 14:57:15,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:15,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:57:15,830 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 14:57:15,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-10 14:57:15,921 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-10 14:57:15,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:57:15,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 42 conjunts are in the unsatisfiable core [2023-01-10 14:57:15,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:57:16,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2061 backedges. 2056 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-01-10 14:57:16,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-10 14:57:16,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60789647] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 14:57:16,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-10 14:57:16,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [43] total 84 [2023-01-10 14:57:16,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757404803] [2023-01-10 14:57:16,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 14:57:16,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-01-10 14:57:16,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:57:16,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-01-10 14:57:16,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=926, Invalid=6046, Unknown=0, NotChecked=0, Total=6972 [2023-01-10 14:57:16,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:16,924 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:57:16,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 5.558139534883721) internal successors, (239), 43 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 14:57:16,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:16,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-01-10 14:57:16,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-01-10 14:57:16,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2023-01-10 14:57:16,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2023-01-10 14:57:16,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:57:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:57:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:57:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:57:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:57:20,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-10 14:57:20,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:20,349 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:57:20,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:57:20,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1519411680, now seen corresponding path program 2 times [2023-01-10 14:57:20,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:57:20,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144285853] [2023-01-10 14:57:20,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:57:20,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:57:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:57:20,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:20,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:57:20,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144285853] [2023-01-10 14:57:20,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144285853] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:57:20,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501513530] [2023-01-10 14:57:20,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 14:57:20,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:20,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:57:20,438 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) [2023-01-10 14:57:20,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-10 14:57:20,489 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 14:57:20,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:57:20,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjunts are in the unsatisfiable core [2023-01-10 14:57:20,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:57:20,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:20,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:57:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:57:20,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501513530] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:57:20,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:57:20,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2023-01-10 14:57:20,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703598756] [2023-01-10 14:57:20,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:57:20,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-01-10 14:57:20,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:57:20,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-01-10 14:57:20,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-01-10 14:57:20,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:20,614 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:57:20,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 14:57:20,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:20,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:57:20,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:57:20,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:57:20,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:57:20,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:57:20,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:24,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:24,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:57:24,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:57:24,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:57:24,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:57:24,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:57:24,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-01-10 14:57:24,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-01-10 14:57:24,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:24,243 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:57:24,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:57:24,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1350211833, now seen corresponding path program 1 times [2023-01-10 14:57:24,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:57:24,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327692508] [2023-01-10 14:57:24,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:57:24,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:57:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:57:24,438 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 0 proven. 282 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2023-01-10 14:57:24,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:57:24,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327692508] [2023-01-10 14:57:24,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327692508] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:57:24,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783490070] [2023-01-10 14:57:24,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:57:24,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:24,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:57:24,441 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) [2023-01-10 14:57:24,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-01-10 14:57:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:57:24,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-10 14:57:24,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:57:24,759 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 0 proven. 282 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2023-01-10 14:57:24,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:57:25,070 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 0 proven. 282 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2023-01-10 14:57:25,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783490070] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:57:25,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:57:25,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 19 [2023-01-10 14:57:25,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789140190] [2023-01-10 14:57:25,071 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:57:25,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-01-10 14:57:25,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:57:25,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-01-10 14:57:25,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2023-01-10 14:57:25,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:25,073 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:57:25,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.0) internal successors, (133), 19 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 14:57:25,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:25,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:57:25,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:57:25,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:57:25,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:57:25,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:57:25,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-01-10 14:57:25,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:30,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:30,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:57:30,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:57:30,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:57:30,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:57:30,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:57:30,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-01-10 14:57:30,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 14:57:30,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-01-10 14:57:30,385 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,SelfDestructingSolverStorable7 [2023-01-10 14:57:30,385 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:57:30,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:57:30,385 INFO L85 PathProgramCache]: Analyzing trace with hash 2053889323, now seen corresponding path program 2 times [2023-01-10 14:57:30,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:57:30,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102220708] [2023-01-10 14:57:30,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:57:30,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:57:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:57:30,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 0 proven. 654 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2023-01-10 14:57:30,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:57:30,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102220708] [2023-01-10 14:57:30,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102220708] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:57:30,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032312370] [2023-01-10 14:57:30,699 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 14:57:30,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:30,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:57:30,701 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) [2023-01-10 14:57:30,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-01-10 14:57:30,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 14:57:30,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:57:30,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 20 conjunts are in the unsatisfiable core [2023-01-10 14:57:30,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:57:31,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 0 proven. 654 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2023-01-10 14:57:31,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:57:31,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 0 proven. 654 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2023-01-10 14:57:31,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032312370] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:57:31,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:57:31,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 35 [2023-01-10 14:57:31,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315622391] [2023-01-10 14:57:31,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:57:31,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-01-10 14:57:31,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:57:31,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-01-10 14:57:31,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=923, Unknown=0, NotChecked=0, Total=1190 [2023-01-10 14:57:31,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:31,663 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:57:31,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 6.057142857142857) internal successors, (212), 35 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 14:57:31,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:31,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:57:31,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:57:31,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:57:31,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:57:31,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:57:31,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-01-10 14:57:31,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 14:57:31,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:57:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:57:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:57:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:57:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:57:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-01-10 14:57:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 14:57:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:57:39,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-01-10 14:57:40,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:40,134 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:57:40,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:57:40,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1992020621, now seen corresponding path program 3 times [2023-01-10 14:57:40,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:57:40,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019011407] [2023-01-10 14:57:40,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:57:40,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:57:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:57:40,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 0 proven. 1398 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-01-10 14:57:40,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:57:40,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019011407] [2023-01-10 14:57:40,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019011407] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:57:40,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617798063] [2023-01-10 14:57:40,838 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-10 14:57:40,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:40,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:57:40,839 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) [2023-01-10 14:57:40,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-01-10 14:57:40,946 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2023-01-10 14:57:40,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:57:40,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 36 conjunts are in the unsatisfiable core [2023-01-10 14:57:40,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:57:41,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 0 proven. 1398 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-01-10 14:57:41,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:57:42,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 0 proven. 1398 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-01-10 14:57:42,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617798063] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:57:42,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:57:42,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 47 [2023-01-10 14:57:42,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682368387] [2023-01-10 14:57:42,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:57:42,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-01-10 14:57:42,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:57:42,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-01-10 14:57:42,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=485, Invalid=1677, Unknown=0, NotChecked=0, Total=2162 [2023-01-10 14:57:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:42,211 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:57:42,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 47 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 14:57:42,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:42,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:57:42,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:57:42,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:57:42,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:57:42,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:57:42,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-01-10 14:57:42,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 14:57:42,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:57:42,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:54,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:54,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:57:54,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:57:54,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:57:54,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:57:54,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:57:54,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:57:54,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:57:54,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:57:54,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-01-10 14:57:54,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-01-10 14:57:54,451 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,SelfDestructingSolverStorable9 [2023-01-10 14:57:54,451 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:57:54,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:57:54,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1589794435, now seen corresponding path program 5 times [2023-01-10 14:57:54,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:57:54,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967683153] [2023-01-10 14:57:54,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:57:54,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:57:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:57:54,607 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 0 proven. 181 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2023-01-10 14:57:54,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:57:54,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967683153] [2023-01-10 14:57:54,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967683153] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:57:54,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051669172] [2023-01-10 14:57:54,608 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-10 14:57:54,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:57:54,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:57:54,609 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) [2023-01-10 14:57:54,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-01-10 14:57:54,683 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2023-01-10 14:57:54,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:57:54,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 11 conjunts are in the unsatisfiable core [2023-01-10 14:57:54,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:57:54,827 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 0 proven. 181 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2023-01-10 14:57:54,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:57:54,999 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 0 proven. 181 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2023-01-10 14:57:54,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051669172] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:57:54,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:57:54,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 17 [2023-01-10 14:57:54,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972534715] [2023-01-10 14:57:54,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:57:55,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-10 14:57:55,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:57:55,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-10 14:57:55,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2023-01-10 14:57:55,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:57:55,001 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:57:55,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 14:57:55,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:57:55,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:57:55,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:57:55,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:57:55,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:57:55,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:57:55,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:57:55,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:57:55,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:57:55,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2023-01-10 14:57:55,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:58:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:58:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:58:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:58:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:58:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:58:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:58:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:58:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:58:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:58:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-01-10 14:58:09,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-01-10 14:58:09,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-01-10 14:58:09,768 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,SelfDestructingSolverStorable10 [2023-01-10 14:58:09,768 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:58:09,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:58:09,769 INFO L85 PathProgramCache]: Analyzing trace with hash -706574658, now seen corresponding path program 4 times [2023-01-10 14:58:09,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:58:09,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451390982] [2023-01-10 14:58:09,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:58:09,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:58:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:58:10,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 470 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2023-01-10 14:58:10,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:58:10,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451390982] [2023-01-10 14:58:10,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451390982] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:58:10,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960715251] [2023-01-10 14:58:10,022 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-10 14:58:10,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:58:10,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:58:10,023 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) [2023-01-10 14:58:10,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-01-10 14:58:10,101 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-10 14:58:10,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:58:10,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 16 conjunts are in the unsatisfiable core [2023-01-10 14:58:10,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:58:10,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 470 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2023-01-10 14:58:10,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:58:10,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 470 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2023-01-10 14:58:10,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960715251] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:58:10,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:58:10,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 27 [2023-01-10 14:58:10,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773060724] [2023-01-10 14:58:10,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:58:10,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-01-10 14:58:10,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:58:10,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-01-10 14:58:10,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2023-01-10 14:58:10,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:58:10,612 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:58:10,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.37037037037037) internal successors, (172), 27 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 14:58:10,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:58:10,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:58:10,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:58:10,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:58:10,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:58:10,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:58:10,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:58:10,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:58:10,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:58:10,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2023-01-10 14:58:10,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-01-10 14:58:10,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:58:28,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:58:28,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:58:28,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:58:28,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:58:28,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:58:28,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:58:28,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:58:28,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:58:28,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:58:28,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-01-10 14:58:28,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 14:58:28,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-01-10 14:58:28,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-01-10 14:58:28,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-01-10 14:58:28,563 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:58:28,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:58:28,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1926037465, now seen corresponding path program 6 times [2023-01-10 14:58:28,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:58:28,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057664474] [2023-01-10 14:58:28,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:58:28,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:58:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:58:28,783 INFO L134 CoverageAnalysis]: Checked inductivity of 953 backedges. 0 proven. 537 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2023-01-10 14:58:28,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:58:28,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057664474] [2023-01-10 14:58:28,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057664474] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:58:28,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603833171] [2023-01-10 14:58:28,783 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-01-10 14:58:28,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:58:28,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:58:28,794 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) [2023-01-10 14:58:28,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-01-10 14:58:28,886 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2023-01-10 14:58:28,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:58:28,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 19 conjunts are in the unsatisfiable core [2023-01-10 14:58:28,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:58:29,038 INFO L134 CoverageAnalysis]: Checked inductivity of 953 backedges. 0 proven. 537 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2023-01-10 14:58:29,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:58:29,324 INFO L134 CoverageAnalysis]: Checked inductivity of 953 backedges. 0 proven. 537 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2023-01-10 14:58:29,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603833171] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:58:29,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:58:29,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 33 [2023-01-10 14:58:29,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833050848] [2023-01-10 14:58:29,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:58:29,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-01-10 14:58:29,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:58:29,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-01-10 14:58:29,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=812, Unknown=0, NotChecked=0, Total=1056 [2023-01-10 14:58:29,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:58:29,326 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:58:29,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 5.7272727272727275) internal successors, (189), 33 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 14:58:29,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:58:29,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:58:29,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:58:29,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:58:29,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:58:29,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:58:29,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:58:29,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:58:29,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:58:29,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2023-01-10 14:58:29,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 14:58:29,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2023-01-10 14:58:29,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:58:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:58:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:58:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:58:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:58:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:58:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:58:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:58:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:58:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:58:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-01-10 14:58:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 14:58:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-01-10 14:58:57,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2023-01-10 14:58:57,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-01-10 14:58:57,919 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,SelfDestructingSolverStorable12 [2023-01-10 14:58:57,920 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:58:57,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:58:57,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1836824126, now seen corresponding path program 5 times [2023-01-10 14:58:57,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:58:57,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211440048] [2023-01-10 14:58:57,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:58:57,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:58:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:58:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1386 backedges. 0 proven. 1262 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-01-10 14:58:58,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:58:58,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211440048] [2023-01-10 14:58:58,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211440048] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:58:58,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196150580] [2023-01-10 14:58:58,698 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-10 14:58:58,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:58:58,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:58:58,699 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) [2023-01-10 14:58:58,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-01-10 14:58:58,792 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2023-01-10 14:58:58,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:58:58,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 32 conjunts are in the unsatisfiable core [2023-01-10 14:58:58,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:58:59,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1386 backedges. 0 proven. 1262 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-01-10 14:58:59,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:58:59,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1386 backedges. 0 proven. 1262 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-01-10 14:58:59,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196150580] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:58:59,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:58:59,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 51 [2023-01-10 14:58:59,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324788187] [2023-01-10 14:58:59,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:58:59,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-01-10 14:58:59,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:58:59,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-01-10 14:58:59,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=475, Invalid=2075, Unknown=0, NotChecked=0, Total=2550 [2023-01-10 14:58:59,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:58:59,869 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:58:59,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 5.764705882352941) internal successors, (294), 51 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 14:58:59,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 14:58:59,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:58:59,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:58:59,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:58:59,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:58:59,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2023-01-10 14:58:59,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-01-10 14:58:59,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-01-10 14:58:59,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2023-01-10 14:58:59,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2023-01-10 14:58:59,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 14:58:59,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2023-01-10 14:58:59,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2023-01-10 14:58:59,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.