/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-commit-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7707f89-m [2022-11-16 01:33:20,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 01:33:20,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 01:33:20,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 01:33:20,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 01:33:20,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 01:33:20,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 01:33:20,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 01:33:20,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 01:33:20,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 01:33:20,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 01:33:20,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 01:33:20,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 01:33:20,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 01:33:20,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 01:33:20,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 01:33:20,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 01:33:20,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 01:33:20,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 01:33:20,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 01:33:20,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 01:33:20,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 01:33:20,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 01:33:20,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 01:33:20,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 01:33:20,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 01:33:20,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 01:33:20,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 01:33:20,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 01:33:20,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 01:33:20,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 01:33:20,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 01:33:20,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 01:33:20,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 01:33:20,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 01:33:20,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 01:33:20,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 01:33:20,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 01:33:20,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 01:33:20,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 01:33:20,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 01:33:20,726 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-11-16 01:33:20,748 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 01:33:20,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 01:33:20,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 01:33:20,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 01:33:20,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 01:33:20,749 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 01:33:20,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 01:33:20,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 01:33:20,749 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 01:33:20,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 01:33:20,750 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 01:33:20,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 01:33:20,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 01:33:20,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 01:33:20,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 01:33:20,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 01:33:20,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 01:33:20,751 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 01:33:20,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 01:33:20,751 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 01:33:20,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 01:33:20,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 01:33:20,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 01:33:20,752 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-16 01:33:20,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 01:33:20,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 01:33:20,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 01:33:20,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 01:33:20,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 01:33:20,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 01:33:20,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 01:33:20,753 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 01:33:20,753 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-16 01:33:20,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 01:33:20,753 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-16 01:33:20,753 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-16 01:33:20,753 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2022-11-16 01:33:20,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 01:33:20,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 01:33:20,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 01:33:20,950 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 01:33:20,953 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 01:33:20,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-commit-2.wvr.c [2022-11-16 01:33:20,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59d6918ed/9b2e16c2da6649e7aa3fa58f02d51623/FLAGcbdfb54f4 [2022-11-16 01:33:21,395 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 01:33:21,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-commit-2.wvr.c [2022-11-16 01:33:21,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59d6918ed/9b2e16c2da6649e7aa3fa58f02d51623/FLAGcbdfb54f4 [2022-11-16 01:33:21,413 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59d6918ed/9b2e16c2da6649e7aa3fa58f02d51623 [2022-11-16 01:33:21,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 01:33:21,416 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-16 01:33:21,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 01:33:21,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 01:33:21,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 01:33:21,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 01:33:21" (1/1) ... [2022-11-16 01:33:21,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39ce514f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:33:21, skipping insertion in model container [2022-11-16 01:33:21,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 01:33:21" (1/1) ... [2022-11-16 01:33:21,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 01:33:21,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 01:33:21,615 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/popl20-commit-2.wvr.c[5846,5859] [2022-11-16 01:33:21,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 01:33:21,627 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 01:33:21,668 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-commit-2.wvr.c[5846,5859] [2022-11-16 01:33:21,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 01:33:21,684 INFO L208 MainTranslator]: Completed translation [2022-11-16 01:33:21,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:33:21 WrapperNode [2022-11-16 01:33:21,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 01:33:21,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 01:33:21,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 01:33:21,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 01:33:21,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:33:21" (1/1) ... [2022-11-16 01:33:21,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:33:21" (1/1) ... [2022-11-16 01:33:21,750 INFO L138 Inliner]: procedures = 26, calls = 93, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 456 [2022-11-16 01:33:21,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 01:33:21,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 01:33:21,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 01:33:21,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 01:33:21,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:33:21" (1/1) ... [2022-11-16 01:33:21,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:33:21" (1/1) ... [2022-11-16 01:33:21,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:33:21" (1/1) ... [2022-11-16 01:33:21,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:33:21" (1/1) ... [2022-11-16 01:33:21,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:33:21" (1/1) ... [2022-11-16 01:33:21,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:33:21" (1/1) ... [2022-11-16 01:33:21,798 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:33:21" (1/1) ... [2022-11-16 01:33:21,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:33:21" (1/1) ... [2022-11-16 01:33:21,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 01:33:21,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 01:33:21,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 01:33:21,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 01:33:21,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:33:21" (1/1) ... [2022-11-16 01:33:21,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 01:33:21,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 01:33:21,837 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 01:33:21,864 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 01:33:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 01:33:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 01:33:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 01:33:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 01:33:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 01:33:21,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 01:33:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 01:33:21,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 01:33:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 01:33:21,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 01:33:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-16 01:33:21,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-16 01:33:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 01:33:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 01:33:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 01:33:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 01:33:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 01:33:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 01:33:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 01:33:21,884 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 01:33:21,992 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 01:33:21,993 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 01:33:22,473 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 01:33:22,752 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 01:33:22,752 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-16 01:33:22,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 01:33:22 BoogieIcfgContainer [2022-11-16 01:33:22,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 01:33:22,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 01:33:22,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 01:33:22,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 01:33:22,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 01:33:21" (1/3) ... [2022-11-16 01:33:22,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9868d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 01:33:22, skipping insertion in model container [2022-11-16 01:33:22,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:33:21" (2/3) ... [2022-11-16 01:33:22,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9868d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 01:33:22, skipping insertion in model container [2022-11-16 01:33:22,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 01:33:22" (3/3) ... [2022-11-16 01:33:22,761 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2022-11-16 01:33:22,768 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 01:33:22,774 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 01:33:22,774 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 01:33:22,774 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 01:33:22,859 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-16 01:33:22,900 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 01:33:22,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-16 01:33:22,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 01:33:22,903 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 01:33:22,905 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 01:33:22,938 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-16 01:33:22,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2022-11-16 01:33:22,955 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;@6ce9914e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 01:33:22,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 01:33:23,166 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 01:33:23,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:33:23,170 INFO L85 PathProgramCache]: Analyzing trace with hash 192040417, now seen corresponding path program 1 times [2022-11-16 01:33:23,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:33:23,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752835966] [2022-11-16 01:33:23,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:33:23,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:33:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:33:23,486 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 01:33:23,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:33:23,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752835966] [2022-11-16 01:33:23,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752835966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:33:23,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:33:23,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 01:33:23,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990832728] [2022-11-16 01:33:23,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:33:23,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 01:33:23,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:33:23,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 01:33:23,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 01:33:23,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:23,515 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:33:23,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 121.0) internal successors, (242), 2 states have internal predecessors, (242), 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 01:33:23,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:23,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:23,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 01:33:23,557 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 01:33:23,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:33:23,558 INFO L85 PathProgramCache]: Analyzing trace with hash -128845040, now seen corresponding path program 1 times [2022-11-16 01:33:23,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:33:23,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956564377] [2022-11-16 01:33:23,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:33:23,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:33:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:33:24,142 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 01:33:24,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:33:24,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956564377] [2022-11-16 01:33:24,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956564377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:33:24,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:33:24,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 01:33:24,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718400371] [2022-11-16 01:33:24,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:33:24,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 01:33:24,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:33:24,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 01:33:24,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 01:33:24,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:24,146 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:33:24,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 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 01:33:24,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:24,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:24,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:24,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:24,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 01:33:24,292 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 01:33:24,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:33:24,293 INFO L85 PathProgramCache]: Analyzing trace with hash 913494636, now seen corresponding path program 1 times [2022-11-16 01:33:24,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:33:24,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806212363] [2022-11-16 01:33:24,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:33:24,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:33:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:33:24,601 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 01:33:24,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:33:24,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806212363] [2022-11-16 01:33:24,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806212363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:33:24,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:33:24,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 01:33:24,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291593998] [2022-11-16 01:33:24,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:33:24,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 01:33:24,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:33:24,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 01:33:24,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 01:33:24,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:24,611 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:33:24,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 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 01:33:24,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:24,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:24,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:26,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:26,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:26,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:26,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 01:33:26,391 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 01:33:26,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:33:26,391 INFO L85 PathProgramCache]: Analyzing trace with hash -523727311, now seen corresponding path program 1 times [2022-11-16 01:33:26,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:33:26,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170675377] [2022-11-16 01:33:26,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:33:26,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:33:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:33:26,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 01:33:26,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:33:26,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170675377] [2022-11-16 01:33:26,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170675377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:33:26,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:33:26,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 01:33:26,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091734748] [2022-11-16 01:33:26,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:33:26,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 01:33:26,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:33:26,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 01:33:26,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 01:33:26,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:26,702 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:33:26,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 01:33:26,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:26,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:26,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:26,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:27,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:27,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:27,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:27,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:27,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 01:33:27,347 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 01:33:27,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:33:27,347 INFO L85 PathProgramCache]: Analyzing trace with hash -32940615, now seen corresponding path program 1 times [2022-11-16 01:33:27,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:33:27,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077512091] [2022-11-16 01:33:27,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:33:27,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:33:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:33:27,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 01:33:27,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:33:27,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077512091] [2022-11-16 01:33:27,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077512091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:33:27,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:33:27,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 01:33:27,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316942280] [2022-11-16 01:33:27,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:33:27,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 01:33:27,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:33:27,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 01:33:27,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 01:33:27,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:27,570 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:33:27,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 01:33:27,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:27,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:27,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:27,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:27,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:27,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:27,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 01:33:27,994 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 01:33:27,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:33:27,995 INFO L85 PathProgramCache]: Analyzing trace with hash -70647503, now seen corresponding path program 1 times [2022-11-16 01:33:27,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:33:27,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595960008] [2022-11-16 01:33:27,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:33:27,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:33:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:33:28,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 01:33:28,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:33:28,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595960008] [2022-11-16 01:33:28,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595960008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:33:28,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:33:28,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 01:33:28,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181600152] [2022-11-16 01:33:28,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:33:28,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 01:33:28,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:33:28,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 01:33:28,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 01:33:28,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:28,236 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:33:28,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 01:33:28,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:28,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:28,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:28,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:28,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:28,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:28,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:28,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 01:33:28,764 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 01:33:28,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:33:28,764 INFO L85 PathProgramCache]: Analyzing trace with hash 2125700219, now seen corresponding path program 1 times [2022-11-16 01:33:28,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:33:28,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290002385] [2022-11-16 01:33:28,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:33:28,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:33:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:33:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 01:33:28,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:33:28,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290002385] [2022-11-16 01:33:28,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290002385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:33:28,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:33:28,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 01:33:28,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561093523] [2022-11-16 01:33:28,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:33:28,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 01:33:28,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:33:28,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 01:33:28,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 01:33:28,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:28,930 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:33:28,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 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 01:33:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:28,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:31,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:31,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:31,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:31,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:31,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:31,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:31,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:31,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 01:33:31,167 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 01:33:31,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:33:31,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1658415440, now seen corresponding path program 1 times [2022-11-16 01:33:31,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:33:31,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487607434] [2022-11-16 01:33:31,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:33:31,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:33:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:33:31,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 01:33:31,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:33:31,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487607434] [2022-11-16 01:33:31,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487607434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:33:31,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:33:31,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 01:33:31,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273558650] [2022-11-16 01:33:31,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:33:31,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 01:33:31,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:33:31,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 01:33:31,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 01:33:31,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:31,313 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:33:31,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.166666666666664) internal successors, (259), 6 states have internal predecessors, (259), 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 01:33:31,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:31,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:31,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:31,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:31,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:31,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:31,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:31,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:33,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:33,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:33,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:33,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:33,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:33,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:33,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:33,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:33,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 01:33:33,989 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 01:33:33,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:33:33,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1844452336, now seen corresponding path program 1 times [2022-11-16 01:33:33,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:33:33,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011784152] [2022-11-16 01:33:33,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:33:33,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:33:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:33:34,170 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 01:33:34,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:33:34,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011784152] [2022-11-16 01:33:34,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011784152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:33:34,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:33:34,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 01:33:34,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935546367] [2022-11-16 01:33:34,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:33:34,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 01:33:34,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:33:34,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 01:33:34,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 01:33:34,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:34,172 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:33:34,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 6 states have internal predecessors, (266), 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 01:33:34,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:34,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:34,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:34,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:34,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:34,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:34,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:34,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:34,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:39,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:39,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 01:33:39,428 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 01:33:39,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:33:39,428 INFO L85 PathProgramCache]: Analyzing trace with hash 584460170, now seen corresponding path program 1 times [2022-11-16 01:33:39,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:33:39,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523251069] [2022-11-16 01:33:39,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:33:39,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:33:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:33:39,715 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 01:33:39,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:33:39,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523251069] [2022-11-16 01:33:39,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523251069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:33:39,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:33:39,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 01:33:39,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122977900] [2022-11-16 01:33:39,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:33:39,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 01:33:39,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:33:39,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 01:33:39,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 01:33:39,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:39,724 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:33:39,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 01:33:39,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:39,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:39,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:39,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:39,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:39,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:39,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:39,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:39,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:39,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:44,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:44,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:44,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:44,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:44,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:44,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:44,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:44,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:44,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:44,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:33:44,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 01:33:44,467 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 01:33:44,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:33:44,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1719202712, now seen corresponding path program 1 times [2022-11-16 01:33:44,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:33:44,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917109106] [2022-11-16 01:33:44,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:33:44,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:33:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:33:44,927 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 01:33:44,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:33:44,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917109106] [2022-11-16 01:33:44,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917109106] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:33:44,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361770153] [2022-11-16 01:33:44,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:33:44,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:33:44,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 01:33:44,939 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 01:33:44,942 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 01:33:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:33:45,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 01:33:45,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:33:45,503 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 01:33:45,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 01:33:45,859 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 01:33:45,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361770153] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 01:33:45,859 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 01:33:45,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 24 [2022-11-16 01:33:45,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672654226] [2022-11-16 01:33:45,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 01:33:45,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-16 01:33:45,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:33:45,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-16 01:33:45,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2022-11-16 01:33:45,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:45,861 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:33:45,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 22.583333333333332) internal successors, (542), 24 states have internal predecessors, (542), 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 01:33:45,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:45,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:45,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:45,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:45,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:45,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:45,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:45,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:45,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:45,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:33:45,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:59,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:33:59,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:59,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:59,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:59,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:59,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:33:59,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:59,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:33:59,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:33:59,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:33:59,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-16 01:33:59,699 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 01:33:59,886 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,SelfDestructingSolverStorable10 [2022-11-16 01:33:59,887 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 01:33:59,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:33:59,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1611660562, now seen corresponding path program 2 times [2022-11-16 01:33:59,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:33:59,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320343965] [2022-11-16 01:33:59,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:33:59,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:33:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:34:00,149 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 01:34:00,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:34:00,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320343965] [2022-11-16 01:34:00,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320343965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:34:00,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:34:00,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 01:34:00,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956385226] [2022-11-16 01:34:00,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:34:00,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 01:34:00,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:34:00,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 01:34:00,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 01:34:00,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:34:00,152 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:34:00,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 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) [2022-11-16 01:34:00,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:34:00,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:34:00,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:34:00,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:34:00,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:34:00,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:34:00,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:34:00,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:34:00,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:34:00,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:34:00,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-11-16 01:34:00,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:34:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:34:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:34:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:34:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:34:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:34:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:34:13,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:34:13,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:34:13,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:34:13,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:34:13,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-16 01:34:13,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:34:13,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 01:34:13,072 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 01:34:13,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:34:13,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1149967906, now seen corresponding path program 1 times [2022-11-16 01:34:13,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:34:13,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911660201] [2022-11-16 01:34:13,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:34:13,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:34:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:34:13,628 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 01:34:13,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:34:13,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911660201] [2022-11-16 01:34:13,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911660201] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:34:13,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51071814] [2022-11-16 01:34:13,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:34:13,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:34:13,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 01:34:13,634 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 01:34:13,636 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 01:34:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:34:13,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 01:34:13,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:34:14,177 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 01:34:14,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 01:34:14,533 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 01:34:14,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51071814] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 01:34:14,533 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 01:34:14,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 28 [2022-11-16 01:34:14,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069084292] [2022-11-16 01:34:14,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 01:34:14,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-16 01:34:14,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:34:14,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-16 01:34:14,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=611, Unknown=0, NotChecked=0, Total=756 [2022-11-16 01:34:14,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:34:14,535 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:34:14,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 13.035714285714286) internal successors, (365), 28 states have internal predecessors, (365), 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 01:34:14,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:34:14,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:34:14,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:34:14,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:34:14,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:34:14,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:34:14,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:34:14,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:34:14,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:34:14,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:34:14,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-11-16 01:34:14,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:34:14,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.