/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7707f89-m [2022-11-16 05:55:43,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 05:55:43,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 05:55:43,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 05:55:43,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 05:55:43,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 05:55:43,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 05:55:43,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 05:55:43,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 05:55:43,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 05:55:43,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 05:55:43,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 05:55:43,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 05:55:43,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 05:55:43,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 05:55:43,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 05:55:43,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 05:55:43,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 05:55:43,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 05:55:43,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 05:55:43,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 05:55:43,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 05:55:43,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 05:55:43,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 05:55:43,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 05:55:43,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 05:55:43,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 05:55:43,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 05:55:43,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 05:55:43,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 05:55:43,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 05:55:43,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 05:55:43,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 05:55:43,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 05:55:43,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 05:55:43,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 05:55:43,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 05:55:43,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 05:55:43,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 05:55:43,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 05:55:43,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 05:55:43,756 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-11-16 05:55:43,778 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 05:55:43,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 05:55:43,779 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 05:55:43,779 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 05:55:43,779 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 05:55:43,780 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 05:55:43,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 05:55:43,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 05:55:43,780 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 05:55:43,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 05:55:43,781 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 05:55:43,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 05:55:43,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 05:55:43,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 05:55:43,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 05:55:43,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 05:55:43,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 05:55:43,781 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 05:55:43,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 05:55:43,782 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 05:55:43,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 05:55:43,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 05:55:43,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 05:55:43,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-16 05:55:43,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 05:55:43,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 05:55:43,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 05:55:43,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 05:55:43,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 05:55:43,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 05:55:43,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 05:55:43,783 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 05:55:43,784 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-16 05:55:43,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 05:55:43,784 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-16 05:55:43,784 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-16 05:55:43,784 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2022-11-16 05:55:43,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 05:55:43,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 05:55:43,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 05:55:43,965 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 05:55:43,966 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 05:55:43,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c [2022-11-16 05:55:44,020 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca84c9ff2/26fb81ee48b64f23bb4540dcd652f76a/FLAGfa5c47fc8 [2022-11-16 05:55:44,400 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 05:55:44,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c [2022-11-16 05:55:44,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca84c9ff2/26fb81ee48b64f23bb4540dcd652f76a/FLAGfa5c47fc8 [2022-11-16 05:55:44,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca84c9ff2/26fb81ee48b64f23bb4540dcd652f76a [2022-11-16 05:55:44,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 05:55:44,428 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-16 05:55:44,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 05:55:44,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 05:55:44,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 05:55:44,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:55:44" (1/1) ... [2022-11-16 05:55:44,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54424caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:55:44, skipping insertion in model container [2022-11-16 05:55:44,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:55:44" (1/1) ... [2022-11-16 05:55:44,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 05:55:44,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 05:55:44,594 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c[3027,3040] [2022-11-16 05:55:44,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 05:55:44,602 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 05:55:44,615 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c[3027,3040] [2022-11-16 05:55:44,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 05:55:44,624 INFO L208 MainTranslator]: Completed translation [2022-11-16 05:55:44,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:55:44 WrapperNode [2022-11-16 05:55:44,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 05:55:44,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 05:55:44,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 05:55:44,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 05:55:44,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:55:44" (1/1) ... [2022-11-16 05:55:44,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:55:44" (1/1) ... [2022-11-16 05:55:44,667 INFO L138 Inliner]: procedures = 22, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 143 [2022-11-16 05:55:44,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 05:55:44,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 05:55:44,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 05:55:44,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 05:55:44,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:55:44" (1/1) ... [2022-11-16 05:55:44,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:55:44" (1/1) ... [2022-11-16 05:55:44,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:55:44" (1/1) ... [2022-11-16 05:55:44,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:55:44" (1/1) ... [2022-11-16 05:55:44,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:55:44" (1/1) ... [2022-11-16 05:55:44,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:55:44" (1/1) ... [2022-11-16 05:55:44,695 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:55:44" (1/1) ... [2022-11-16 05:55:44,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:55:44" (1/1) ... [2022-11-16 05:55:44,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 05:55:44,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 05:55:44,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 05:55:44,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 05:55:44,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:55:44" (1/1) ... [2022-11-16 05:55:44,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 05:55:44,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 05:55:44,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 05:55:44,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 05:55:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 05:55:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 05:55:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 05:55:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 05:55:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 05:55:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 05:55:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 05:55:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 05:55:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 05:55:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 05:55:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 05:55:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 05:55:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 05:55:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 05:55:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 05:55:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 05:55:44,755 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 05:55:44,817 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 05:55:44,818 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 05:55:44,965 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 05:55:45,033 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 05:55:45,034 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 05:55:45,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 05:55:45 BoogieIcfgContainer [2022-11-16 05:55:45,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 05:55:45,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 05:55:45,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 05:55:45,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 05:55:45,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 05:55:44" (1/3) ... [2022-11-16 05:55:45,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a64027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:55:45, skipping insertion in model container [2022-11-16 05:55:45,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:55:44" (2/3) ... [2022-11-16 05:55:45,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a64027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:55:45, skipping insertion in model container [2022-11-16 05:55:45,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 05:55:45" (3/3) ... [2022-11-16 05:55:45,041 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-5.wvr.c [2022-11-16 05:55:45,046 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 05:55:45,051 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 05:55:45,052 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 05:55:45,052 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 05:55:45,153 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 05:55:45,196 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 05:55:45,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-16 05:55:45,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 05:55:45,199 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-16 05:55:45,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-16 05:55:45,226 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-16 05:55:45,236 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2022-11-16 05:55:45,240 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;@7060c144, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 05:55:45,240 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 05:55:45,449 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 05:55:45,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:55:45,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1756200537, now seen corresponding path program 1 times [2022-11-16 05:55:45,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:55:45,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762433632] [2022-11-16 05:55:45,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:55:45,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:55:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:55:45,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:55:45,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:55:45,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762433632] [2022-11-16 05:55:45,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762433632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 05:55:45,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 05:55:45,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 05:55:45,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911816416] [2022-11-16 05:55:45,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 05:55:45,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 05:55:45,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:55:45,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 05:55:45,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 05:55:45,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:45,703 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:55:45,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 05:55:45,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:45,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:45,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 05:55:45,753 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 05:55:45,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:55:45,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1423237907, now seen corresponding path program 1 times [2022-11-16 05:55:45,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:55:45,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653020407] [2022-11-16 05:55:45,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:55:45,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:55:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:55:46,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:55:46,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:55:46,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653020407] [2022-11-16 05:55:46,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653020407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 05:55:46,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 05:55:46,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 05:55:46,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992060112] [2022-11-16 05:55:46,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 05:55:46,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 05:55:46,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:55:46,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 05:55:46,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 05:55:46,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:46,195 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:55:46,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 05:55:46,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:46,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:46,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:46,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:55:46,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 05:55:46,372 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 05:55:46,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:55:46,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1796004399, now seen corresponding path program 1 times [2022-11-16 05:55:46,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:55:46,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282666407] [2022-11-16 05:55:46,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:55:46,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:55:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:55:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:55:46,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:55:46,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282666407] [2022-11-16 05:55:46,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282666407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 05:55:46,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 05:55:46,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 05:55:46,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517921008] [2022-11-16 05:55:46,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 05:55:46,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 05:55:46,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:55:46,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 05:55:46,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 05:55:46,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:46,663 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:55:46,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 05:55:46,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:46,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:55:46,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:46,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:46,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:55:46,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 05:55:46,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 05:55:46,763 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 05:55:46,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:55:46,765 INFO L85 PathProgramCache]: Analyzing trace with hash 2004328294, now seen corresponding path program 1 times [2022-11-16 05:55:46,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:55:46,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694364690] [2022-11-16 05:55:46,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:55:46,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:55:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:55:47,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:55:47,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:55:47,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694364690] [2022-11-16 05:55:47,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694364690] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:55:47,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767436437] [2022-11-16 05:55:47,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:55:47,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:55:47,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 05:55:47,078 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:55:47,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 05:55:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:55:47,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 05:55:47,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:55:47,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:55:47,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:55:47,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:55:47,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767436437] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:55:47,511 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:55:47,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 17 [2022-11-16 05:55:47,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094177017] [2022-11-16 05:55:47,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:55:47,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 05:55:47,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:55:47,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 05:55:47,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-16 05:55:47,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:47,515 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:55:47,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.352941176470589) internal successors, (159), 17 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 05:55:47,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:47,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:55:47,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 05:55:47,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:48,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:48,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:55:48,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:55:48,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:55:48,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 05:55:48,304 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,SelfDestructingSolverStorable3 [2022-11-16 05:55:48,305 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 05:55:48,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:55:48,305 INFO L85 PathProgramCache]: Analyzing trace with hash -893980584, now seen corresponding path program 1 times [2022-11-16 05:55:48,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:55:48,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243621462] [2022-11-16 05:55:48,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:55:48,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:55:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:55:48,522 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:55:48,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:55:48,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243621462] [2022-11-16 05:55:48,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243621462] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:55:48,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255561321] [2022-11-16 05:55:48,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:55:48,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:55:48,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 05:55:48,525 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:55:48,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 05:55:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:55:48,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 05:55:48,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:55:48,714 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:55:48,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:55:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 05:55:48,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255561321] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:55:48,830 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:55:48,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 19 [2022-11-16 05:55:48,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781449232] [2022-11-16 05:55:48,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:55:48,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 05:55:48,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:55:48,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 05:55:48,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-16 05:55:48,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:48,832 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:55:48,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.578947368421053) internal successors, (182), 19 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 05:55:48,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:48,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:55:48,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:55:48,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:55:48,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:49,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:55:49,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:55:49,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:55:49,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-16 05:55:49,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-16 05:55:49,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:55:49,738 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 05:55:49,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:55:49,739 INFO L85 PathProgramCache]: Analyzing trace with hash 413488622, now seen corresponding path program 1 times [2022-11-16 05:55:49,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:55:49,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715574064] [2022-11-16 05:55:49,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:55:49,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:55:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:55:50,007 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 31 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 05:55:50,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:55:50,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715574064] [2022-11-16 05:55:50,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715574064] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:55:50,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95342203] [2022-11-16 05:55:50,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:55:50,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:55:50,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 05:55:50,009 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:55:50,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 05:55:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:55:50,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 05:55:50,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:55:50,166 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 31 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 05:55:50,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:55:50,234 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 31 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 05:55:50,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95342203] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:55:50,234 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:55:50,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 10 [2022-11-16 05:55:50,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119734291] [2022-11-16 05:55:50,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:55:50,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 05:55:50,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:55:50,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 05:55:50,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 05:55:50,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:50,236 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:55:50,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 05:55:50,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:50,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:55:50,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:55:50,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:55:50,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-11-16 05:55:50,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:50,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:50,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:55:50,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:55:50,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:55:50,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-16 05:55:50,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 05:55:50,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 05:55:50,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:55:50,892 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 05:55:50,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:55:50,893 INFO L85 PathProgramCache]: Analyzing trace with hash -788445326, now seen corresponding path program 2 times [2022-11-16 05:55:50,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:55:50,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052749499] [2022-11-16 05:55:50,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:55:50,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:55:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:55:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 51 proven. 43 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 05:55:51,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:55:51,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052749499] [2022-11-16 05:55:51,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052749499] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:55:51,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501179825] [2022-11-16 05:55:51,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 05:55:51,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:55:51,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 05:55:51,280 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:55:51,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 05:55:51,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 05:55:51,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 05:55:51,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-16 05:55:51,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:55:51,569 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 51 proven. 43 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 05:55:51,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:55:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 62 proven. 32 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 05:55:51,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501179825] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:55:51,846 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:55:51,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 26 [2022-11-16 05:55:51,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532735314] [2022-11-16 05:55:51,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:55:51,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-16 05:55:51,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:55:51,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-16 05:55:51,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2022-11-16 05:55:51,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:51,848 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:55:51,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.038461538461538) internal successors, (235), 26 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 05:55:51,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:51,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:55:51,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:55:51,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:55:51,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-11-16 05:55:51,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 05:55:51,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:54,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:54,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:55:54,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:55:54,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:55:54,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-16 05:55:54,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 05:55:54,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-16 05:55:54,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 05:55:54,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:55:54,461 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 05:55:54,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:55:54,461 INFO L85 PathProgramCache]: Analyzing trace with hash -695424236, now seen corresponding path program 2 times [2022-11-16 05:55:54,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:55:54,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904245742] [2022-11-16 05:55:54,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:55:54,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:55:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:55:54,888 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 106 proven. 149 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 05:55:54,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:55:54,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904245742] [2022-11-16 05:55:54,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904245742] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:55:54,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702347134] [2022-11-16 05:55:54,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 05:55:54,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:55:54,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 05:55:54,890 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:55:54,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 05:55:54,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 05:55:54,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 05:55:54,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-16 05:55:54,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:55:55,160 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 172 proven. 81 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 05:55:55,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:55:55,353 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 174 proven. 77 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 05:55:55,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702347134] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:55:55,353 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:55:55,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 10] total 27 [2022-11-16 05:55:55,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258533037] [2022-11-16 05:55:55,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:55:55,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-16 05:55:55,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:55:55,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-16 05:55:55,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2022-11-16 05:55:55,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:55,355 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:55:55,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.444444444444445) internal successors, (282), 27 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 05:55:55,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:55:55,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:55:55,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:55:55,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:55:55,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-11-16 05:55:55,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 05:55:55,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-11-16 05:55:55,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:56:02,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:56:02,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:56:02,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:56:02,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:56:02,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-16 05:56:02,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 05:56:02,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 05:56:02,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-11-16 05:56:02,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 05:56:03,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:56:03,088 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 05:56:03,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:56:03,088 INFO L85 PathProgramCache]: Analyzing trace with hash -809592115, now seen corresponding path program 3 times [2022-11-16 05:56:03,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:56:03,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359365390] [2022-11-16 05:56:03,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:56:03,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:56:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:56:03,657 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 246 proven. 228 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 05:56:03,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:56:03,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359365390] [2022-11-16 05:56:03,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359365390] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:56:03,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775309526] [2022-11-16 05:56:03,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 05:56:03,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:56:03,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 05:56:03,659 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:56:03,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 05:56:03,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-11-16 05:56:03,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 05:56:03,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-16 05:56:03,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:56:04,132 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 246 proven. 228 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 05:56:04,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:56:04,445 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 269 proven. 205 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 05:56:04,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775309526] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:56:04,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:56:04,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 33 [2022-11-16 05:56:04,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674729050] [2022-11-16 05:56:04,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:56:04,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-16 05:56:04,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:56:04,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-16 05:56:04,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=788, Unknown=0, NotChecked=0, Total=1056 [2022-11-16 05:56:04,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:56:04,447 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:56:04,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 8.575757575757576) internal successors, (283), 33 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 05:56:04,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:56:04,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:56:04,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:56:04,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:56:04,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-11-16 05:56:04,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 05:56:04,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-11-16 05:56:04,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-11-16 05:56:04,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:56:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:56:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:56:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:56:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:56:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-16 05:56:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 05:56:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:56:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-11-16 05:56:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-11-16 05:56:21,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 05:56:21,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:56:21,412 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 05:56:21,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 05:56:21,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1205429869, now seen corresponding path program 3 times [2022-11-16 05:56:21,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 05:56:21,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790082122] [2022-11-16 05:56:21,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 05:56:21,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 05:56:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 05:56:22,127 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 302 proven. 580 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 05:56:22,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 05:56:22,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790082122] [2022-11-16 05:56:22,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790082122] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 05:56:22,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320163994] [2022-11-16 05:56:22,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 05:56:22,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 05:56:22,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 05:56:22,130 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 05:56:22,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 05:56:22,425 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-16 05:56:22,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 05:56:22,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-16 05:56:22,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 05:56:22,673 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 282 proven. 600 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 05:56:22,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 05:56:23,079 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 332 proven. 550 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 05:56:23,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320163994] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 05:56:23,080 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 05:56:23,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 20] total 30 [2022-11-16 05:56:23,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484777212] [2022-11-16 05:56:23,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 05:56:23,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-16 05:56:23,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 05:56:23,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-16 05:56:23,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2022-11-16 05:56:23,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:56:23,081 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 05:56:23,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.266666666666667) internal successors, (278), 30 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 05:56:23,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 05:56:23,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 05:56:23,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 05:56:23,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 05:56:23,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-11-16 05:56:23,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 05:56:23,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-11-16 05:56:23,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-11-16 05:56:23,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-11-16 05:56:23,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.