/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec13_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:42:19,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:42:19,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:42:19,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:42:19,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:42:19,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:42:19,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:42:19,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:42:19,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:42:19,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:42:19,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:42:19,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:42:19,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:42:19,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:42:19,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:42:19,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:42:19,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:42:19,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:42:19,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:42:19,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:42:19,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:42:19,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:42:19,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:42:19,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:42:19,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:42:19,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:42:19,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:42:19,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:42:19,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:42:19,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:42:19,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:42:19,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:42:19,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:42:19,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:42:19,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:42:19,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:42:19,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:42:19,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:42:19,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:42:19,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:42:19,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:42:19,767 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:42:19,796 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:42:19,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:42:19,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:42:19,797 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:42:19,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:42:19,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:42:19,798 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:42:19,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:42:19,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:42:19,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:42:19,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:42:19,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:42:19,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:42:19,800 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:42:19,800 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:42:19,800 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:42:19,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:42:19,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:42:19,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:42:19,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:42:19,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:42:19,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:42:19,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:42:19,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:42:19,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:42:19,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:42:19,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:42:19,803 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:42:19,803 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:42:19,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:42:19,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:42:19,803 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:42:19,804 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:42:19,804 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:42:20,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:42:20,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:42:20,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:42:20,034 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:42:20,035 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:42:20,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec13_product29.cil.c [2022-01-10 23:42:20,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd8e248e6/c75695f261bb4733a8a2c8566f073922/FLAG33809b4d8 [2022-01-10 23:42:20,568 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:42:20,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product29.cil.c [2022-01-10 23:42:20,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd8e248e6/c75695f261bb4733a8a2c8566f073922/FLAG33809b4d8 [2022-01-10 23:42:20,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd8e248e6/c75695f261bb4733a8a2c8566f073922 [2022-01-10 23:42:20,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:42:20,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:42:20,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:42:20,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:42:20,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:42:20,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:42:20" (1/1) ... [2022-01-10 23:42:20,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7354f0e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:42:20, skipping insertion in model container [2022-01-10 23:42:20,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:42:20" (1/1) ... [2022-01-10 23:42:20,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:42:20,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:42:21,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product29.cil.c[54440,54453] [2022-01-10 23:42:21,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:42:21,396 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:42:21,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:42:21,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product29.cil.c[54440,54453] [2022-01-10 23:42:21,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:42:21,502 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:42:21,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product29.cil.c[54440,54453] [2022-01-10 23:42:21,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:42:21,595 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:42:21,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:42:21 WrapperNode [2022-01-10 23:42:21,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:42:21,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:42:21,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:42:21,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:42:21,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:42:21" (1/1) ... [2022-01-10 23:42:21,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:42:21" (1/1) ... [2022-01-10 23:42:22,052 INFO L137 Inliner]: procedures = 93, calls = 340, calls flagged for inlining = 193, calls inlined = 975, statements flattened = 34881 [2022-01-10 23:42:22,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:42:22,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:42:22,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:42:22,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:42:22,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:42:21" (1/1) ... [2022-01-10 23:42:22,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:42:21" (1/1) ... [2022-01-10 23:42:22,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:42:21" (1/1) ... [2022-01-10 23:42:22,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:42:21" (1/1) ... [2022-01-10 23:42:22,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:42:21" (1/1) ... [2022-01-10 23:42:22,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:42:21" (1/1) ... [2022-01-10 23:42:22,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:42:21" (1/1) ... [2022-01-10 23:42:22,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:42:22,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:42:22,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:42:22,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:42:22,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:42:21" (1/1) ... [2022-01-10 23:42:22,732 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:42:22,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:42:22,761 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) [2022-01-10 23:42:22,784 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 [2022-01-10 23:42:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:42:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:42:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:42:22,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:42:23,039 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:42:23,041 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:42:34,988 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:42:35,039 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:42:35,039 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2022-01-10 23:42:35,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:42:35 BoogieIcfgContainer [2022-01-10 23:42:35,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:42:35,051 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:42:35,051 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:42:35,052 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:42:35,054 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:42:35" (1/1) ... [2022-01-10 23:42:37,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:42:37 BasicIcfg [2022-01-10 23:42:37,026 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:42:37,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:42:37,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:42:37,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:42:37,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:42:20" (1/4) ... [2022-01-10 23:42:37,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214d24c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:42:37, skipping insertion in model container [2022-01-10 23:42:37,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:42:21" (2/4) ... [2022-01-10 23:42:37,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214d24c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:42:37, skipping insertion in model container [2022-01-10 23:42:37,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:42:35" (3/4) ... [2022-01-10 23:42:37,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214d24c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:42:37, skipping insertion in model container [2022-01-10 23:42:37,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:42:37" (4/4) ... [2022-01-10 23:42:37,034 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product29.cil.cTransformedIcfg [2022-01-10 23:42:37,039 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:42:37,039 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-10 23:42:37,110 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:42:37,119 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 23:42:37,119 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-10 23:42:37,254 INFO L276 IsEmpty]: Start isEmpty. Operand has 9462 states, 9451 states have (on average 1.8807533594328643) internal successors, (17775), 9461 states have internal predecessors, (17775), 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) [2022-01-10 23:42:37,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 23:42:37,275 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:42:37,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:42:37,276 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:42:37,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:42:37,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1784916724, now seen corresponding path program 1 times [2022-01-10 23:42:37,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:42:37,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208012280] [2022-01-10 23:42:37,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:42:37,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:42:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:42:37,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:42:37,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:42:37,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208012280] [2022-01-10 23:42:37,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208012280] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:42:37,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:42:37,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:42:37,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075457469] [2022-01-10 23:42:37,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:42:37,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:42:37,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:42:37,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:42:37,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:37,738 INFO L87 Difference]: Start difference. First operand has 9462 states, 9451 states have (on average 1.8807533594328643) internal successors, (17775), 9461 states have internal predecessors, (17775), 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) Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2022-01-10 23:42:38,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:42:38,343 INFO L93 Difference]: Finished difference Result 22696 states and 42648 transitions. [2022-01-10 23:42:38,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:42:38,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) Word has length 63 [2022-01-10 23:42:38,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:42:38,700 INFO L225 Difference]: With dead ends: 22696 [2022-01-10 23:42:38,700 INFO L226 Difference]: Without dead ends: 13233 [2022-01-10 23:42:38,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:38,761 INFO L933 BasicCegarLoop]: 24673 mSDtfsCounter, 17619 mSDsluCounter, 7081 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17619 SdHoareTripleChecker+Valid, 31754 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:42:38,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17619 Valid, 31754 Invalid, 37 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:42:38,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13233 states. [2022-01-10 23:42:39,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13233 to 9445. [2022-01-10 23:42:39,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9445 states, 9435 states have (on average 1.867620561738209) internal successors, (17621), 9444 states have internal predecessors, (17621), 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) [2022-01-10 23:42:39,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9445 states to 9445 states and 17621 transitions. [2022-01-10 23:42:39,315 INFO L78 Accepts]: Start accepts. Automaton has 9445 states and 17621 transitions. Word has length 63 [2022-01-10 23:42:39,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:42:39,315 INFO L470 AbstractCegarLoop]: Abstraction has 9445 states and 17621 transitions. [2022-01-10 23:42:39,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2022-01-10 23:42:39,316 INFO L276 IsEmpty]: Start isEmpty. Operand 9445 states and 17621 transitions. [2022-01-10 23:42:39,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 23:42:39,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:42:39,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:42:39,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:42:39,324 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:42:39,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:42:39,327 INFO L85 PathProgramCache]: Analyzing trace with hash -696645092, now seen corresponding path program 1 times [2022-01-10 23:42:39,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:42:39,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708747631] [2022-01-10 23:42:39,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:42:39,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:42:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:42:39,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:42:39,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:42:39,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708747631] [2022-01-10 23:42:39,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708747631] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:42:39,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:42:39,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:42:39,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274767385] [2022-01-10 23:42:39,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:42:39,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:42:39,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:42:39,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:42:39,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:39,481 INFO L87 Difference]: Start difference. First operand 9445 states and 17621 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2022-01-10 23:42:40,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:42:40,138 INFO L93 Difference]: Finished difference Result 22593 states and 42147 transitions. [2022-01-10 23:42:40,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:42:40,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) Word has length 65 [2022-01-10 23:42:40,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:42:40,211 INFO L225 Difference]: With dead ends: 22593 [2022-01-10 23:42:40,211 INFO L226 Difference]: Without dead ends: 13197 [2022-01-10 23:42:40,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:40,230 INFO L933 BasicCegarLoop]: 24445 mSDtfsCounter, 17569 mSDsluCounter, 7022 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17569 SdHoareTripleChecker+Valid, 31467 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:42:40,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17569 Valid, 31467 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:42:40,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13197 states. [2022-01-10 23:42:40,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13197 to 9445. [2022-01-10 23:42:40,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9445 states, 9435 states have (on average 1.8665606783253843) internal successors, (17611), 9444 states have internal predecessors, (17611), 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) [2022-01-10 23:42:40,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9445 states to 9445 states and 17611 transitions. [2022-01-10 23:42:40,629 INFO L78 Accepts]: Start accepts. Automaton has 9445 states and 17611 transitions. Word has length 65 [2022-01-10 23:42:40,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:42:40,631 INFO L470 AbstractCegarLoop]: Abstraction has 9445 states and 17611 transitions. [2022-01-10 23:42:40,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2022-01-10 23:42:40,634 INFO L276 IsEmpty]: Start isEmpty. Operand 9445 states and 17611 transitions. [2022-01-10 23:42:40,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 23:42:40,645 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:42:40,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:42:40,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:42:40,646 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:42:40,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:42:40,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1959761743, now seen corresponding path program 1 times [2022-01-10 23:42:40,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:42:40,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131512634] [2022-01-10 23:42:40,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:42:40,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:42:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:42:40,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:42:40,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:42:40,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131512634] [2022-01-10 23:42:40,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131512634] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:42:40,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:42:40,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:42:40,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075744040] [2022-01-10 23:42:40,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:42:40,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:42:40,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:42:40,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:42:40,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:40,734 INFO L87 Difference]: Start difference. First operand 9445 states and 17611 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2022-01-10 23:42:41,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:42:41,230 INFO L93 Difference]: Finished difference Result 22659 states and 42258 transitions. [2022-01-10 23:42:41,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:42:41,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) Word has length 67 [2022-01-10 23:42:41,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:42:41,279 INFO L225 Difference]: With dead ends: 22659 [2022-01-10 23:42:41,279 INFO L226 Difference]: Without dead ends: 13278 [2022-01-10 23:42:41,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:41,294 INFO L933 BasicCegarLoop]: 24745 mSDtfsCounter, 17577 mSDsluCounter, 7150 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17577 SdHoareTripleChecker+Valid, 31895 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:42:41,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17577 Valid, 31895 Invalid, 35 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:42:41,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13278 states. [2022-01-10 23:42:41,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13278 to 9445. [2022-01-10 23:42:41,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9445 states, 9435 states have (on average 1.8664546899841017) internal successors, (17610), 9444 states have internal predecessors, (17610), 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) [2022-01-10 23:42:41,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9445 states to 9445 states and 17610 transitions. [2022-01-10 23:42:41,618 INFO L78 Accepts]: Start accepts. Automaton has 9445 states and 17610 transitions. Word has length 67 [2022-01-10 23:42:41,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:42:41,619 INFO L470 AbstractCegarLoop]: Abstraction has 9445 states and 17610 transitions. [2022-01-10 23:42:41,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2022-01-10 23:42:41,620 INFO L276 IsEmpty]: Start isEmpty. Operand 9445 states and 17610 transitions. [2022-01-10 23:42:41,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 23:42:41,624 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:42:41,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:42:41,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:42:41,625 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:42:41,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:42:41,626 INFO L85 PathProgramCache]: Analyzing trace with hash -456642388, now seen corresponding path program 1 times [2022-01-10 23:42:41,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:42:41,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513946904] [2022-01-10 23:42:41,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:42:41,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:42:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:42:41,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:42:41,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:42:41,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513946904] [2022-01-10 23:42:41,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513946904] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:42:41,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:42:41,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:42:41,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954182673] [2022-01-10 23:42:41,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:42:41,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:42:41,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:42:41,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:42:41,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:41,689 INFO L87 Difference]: Start difference. First operand 9445 states and 17610 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2022-01-10 23:42:42,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:42:42,266 INFO L93 Difference]: Finished difference Result 22558 states and 42065 transitions. [2022-01-10 23:42:42,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:42:42,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) Word has length 68 [2022-01-10 23:42:42,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:42:42,307 INFO L225 Difference]: With dead ends: 22558 [2022-01-10 23:42:42,307 INFO L226 Difference]: Without dead ends: 13213 [2022-01-10 23:42:42,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:42,324 INFO L933 BasicCegarLoop]: 24574 mSDtfsCounter, 17447 mSDsluCounter, 7056 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17447 SdHoareTripleChecker+Valid, 31630 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:42:42,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17447 Valid, 31630 Invalid, 171 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:42:42,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13213 states. [2022-01-10 23:42:42,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13213 to 9445. [2022-01-10 23:42:42,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9445 states, 9435 states have (on average 1.8659247482776895) internal successors, (17605), 9444 states have internal predecessors, (17605), 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) [2022-01-10 23:42:42,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9445 states to 9445 states and 17605 transitions. [2022-01-10 23:42:42,581 INFO L78 Accepts]: Start accepts. Automaton has 9445 states and 17605 transitions. Word has length 68 [2022-01-10 23:42:42,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:42:42,582 INFO L470 AbstractCegarLoop]: Abstraction has 9445 states and 17605 transitions. [2022-01-10 23:42:42,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2022-01-10 23:42:42,582 INFO L276 IsEmpty]: Start isEmpty. Operand 9445 states and 17605 transitions. [2022-01-10 23:42:42,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-10 23:42:42,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:42:42,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:42:42,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:42:42,587 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:42:42,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:42:42,587 INFO L85 PathProgramCache]: Analyzing trace with hash -162717542, now seen corresponding path program 1 times [2022-01-10 23:42:42,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:42:42,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540669473] [2022-01-10 23:42:42,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:42:42,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:42:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:42:42,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:42:42,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:42:42,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540669473] [2022-01-10 23:42:42,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540669473] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:42:42,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:42:42,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:42:42,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307916554] [2022-01-10 23:42:42,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:42:42,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:42:42,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:42:42,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:42:42,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:42,754 INFO L87 Difference]: Start difference. First operand 9445 states and 17605 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 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) [2022-01-10 23:42:43,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:42:43,614 INFO L93 Difference]: Finished difference Result 26034 states and 48538 transitions. [2022-01-10 23:42:43,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:42:43,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 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) Word has length 69 [2022-01-10 23:42:43,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:42:43,666 INFO L225 Difference]: With dead ends: 26034 [2022-01-10 23:42:43,667 INFO L226 Difference]: Without dead ends: 17604 [2022-01-10 23:42:43,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:43,686 INFO L933 BasicCegarLoop]: 18310 mSDtfsCounter, 17388 mSDsluCounter, 14948 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17388 SdHoareTripleChecker+Valid, 33258 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:42:43,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17388 Valid, 33258 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 23:42:43,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17604 states. [2022-01-10 23:42:44,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17604 to 17584. [2022-01-10 23:42:44,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17584 states, 17574 states have (on average 1.8602480937748946) internal successors, (32692), 17583 states have internal predecessors, (32692), 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) [2022-01-10 23:42:44,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17584 states to 17584 states and 32692 transitions. [2022-01-10 23:42:44,294 INFO L78 Accepts]: Start accepts. Automaton has 17584 states and 32692 transitions. Word has length 69 [2022-01-10 23:42:44,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:42:44,296 INFO L470 AbstractCegarLoop]: Abstraction has 17584 states and 32692 transitions. [2022-01-10 23:42:44,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 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) [2022-01-10 23:42:44,296 INFO L276 IsEmpty]: Start isEmpty. Operand 17584 states and 32692 transitions. [2022-01-10 23:42:44,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-10 23:42:44,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:42:44,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:42:44,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:42:44,303 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:42:44,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:42:44,303 INFO L85 PathProgramCache]: Analyzing trace with hash -719507187, now seen corresponding path program 1 times [2022-01-10 23:42:44,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:42:44,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988149833] [2022-01-10 23:42:44,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:42:44,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:42:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:42:44,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:42:44,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:42:44,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988149833] [2022-01-10 23:42:44,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988149833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:42:44,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:42:44,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:42:44,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790419904] [2022-01-10 23:42:44,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:42:44,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:42:44,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:42:44,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:42:44,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:44,378 INFO L87 Difference]: Start difference. First operand 17584 states and 32692 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 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) [2022-01-10 23:42:45,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:42:45,642 INFO L93 Difference]: Finished difference Result 49707 states and 92416 transitions. [2022-01-10 23:42:45,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:42:45,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 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) Word has length 70 [2022-01-10 23:42:45,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:42:45,728 INFO L225 Difference]: With dead ends: 49707 [2022-01-10 23:42:45,729 INFO L226 Difference]: Without dead ends: 33788 [2022-01-10 23:42:45,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:45,761 INFO L933 BasicCegarLoop]: 17456 mSDtfsCounter, 17373 mSDsluCounter, 14979 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17373 SdHoareTripleChecker+Valid, 32435 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:42:45,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17373 Valid, 32435 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 23:42:45,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33788 states. [2022-01-10 23:42:46,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33788 to 33768. [2022-01-10 23:42:46,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33768 states, 33758 states have (on average 1.8547899757094615) internal successors, (62614), 33767 states have internal predecessors, (62614), 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) [2022-01-10 23:42:46,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33768 states to 33768 states and 62614 transitions. [2022-01-10 23:42:46,572 INFO L78 Accepts]: Start accepts. Automaton has 33768 states and 62614 transitions. Word has length 70 [2022-01-10 23:42:46,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:42:46,573 INFO L470 AbstractCegarLoop]: Abstraction has 33768 states and 62614 transitions. [2022-01-10 23:42:46,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 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) [2022-01-10 23:42:46,573 INFO L276 IsEmpty]: Start isEmpty. Operand 33768 states and 62614 transitions. [2022-01-10 23:42:46,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-10 23:42:46,577 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:42:46,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:42:46,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:42:46,577 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:42:46,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:42:46,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1345144057, now seen corresponding path program 1 times [2022-01-10 23:42:46,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:42:46,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098227698] [2022-01-10 23:42:46,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:42:46,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:42:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:42:46,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:42:46,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:42:46,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098227698] [2022-01-10 23:42:46,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098227698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:42:46,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:42:46,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:42:46,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865002911] [2022-01-10 23:42:46,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:42:46,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:42:46,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:42:46,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:42:46,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:46,653 INFO L87 Difference]: Start difference. First operand 33768 states and 62614 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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) [2022-01-10 23:42:48,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:42:48,723 INFO L93 Difference]: Finished difference Result 96865 states and 179587 transitions. [2022-01-10 23:42:48,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:42:48,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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) Word has length 71 [2022-01-10 23:42:48,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:42:49,280 INFO L225 Difference]: With dead ends: 96865 [2022-01-10 23:42:49,280 INFO L226 Difference]: Without dead ends: 65952 [2022-01-10 23:42:49,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:49,370 INFO L933 BasicCegarLoop]: 17442 mSDtfsCounter, 17358 mSDsluCounter, 15010 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17358 SdHoareTripleChecker+Valid, 32452 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 23:42:49,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17358 Valid, 32452 Invalid, 527 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [271 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 23:42:49,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65952 states. [2022-01-10 23:42:51,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65952 to 65932. [2022-01-10 23:42:51,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65932 states, 65922 states have (on average 1.8492915870270927) internal successors, (121909), 65931 states have internal predecessors, (121909), 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) [2022-01-10 23:42:51,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65932 states to 65932 states and 121909 transitions. [2022-01-10 23:42:51,602 INFO L78 Accepts]: Start accepts. Automaton has 65932 states and 121909 transitions. Word has length 71 [2022-01-10 23:42:51,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:42:51,603 INFO L470 AbstractCegarLoop]: Abstraction has 65932 states and 121909 transitions. [2022-01-10 23:42:51,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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) [2022-01-10 23:42:51,603 INFO L276 IsEmpty]: Start isEmpty. Operand 65932 states and 121909 transitions. [2022-01-10 23:42:51,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 23:42:51,611 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:42:51,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:42:51,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:42:51,612 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:42:51,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:42:51,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1593233421, now seen corresponding path program 1 times [2022-01-10 23:42:51,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:42:51,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190830402] [2022-01-10 23:42:51,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:42:51,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:42:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:42:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:42:51,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:42:51,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190830402] [2022-01-10 23:42:51,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190830402] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:42:51,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:42:51,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:42:51,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833994865] [2022-01-10 23:42:51,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:42:51,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:42:51,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:42:51,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:42:51,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:51,739 INFO L87 Difference]: Start difference. First operand 65932 states and 121909 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 2 states have internal predecessors, (72), 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) [2022-01-10 23:42:54,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:42:54,384 INFO L93 Difference]: Finished difference Result 190773 states and 352666 transitions. [2022-01-10 23:42:54,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:42:54,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 2 states have internal predecessors, (72), 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) Word has length 72 [2022-01-10 23:42:54,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:42:54,823 INFO L225 Difference]: With dead ends: 190773 [2022-01-10 23:42:54,823 INFO L226 Difference]: Without dead ends: 129856 [2022-01-10 23:42:54,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:54,914 INFO L933 BasicCegarLoop]: 17428 mSDtfsCounter, 17343 mSDsluCounter, 15041 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17343 SdHoareTripleChecker+Valid, 32469 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:42:54,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17343 Valid, 32469 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 23:42:55,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129856 states. [2022-01-10 23:42:57,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129856 to 129836. [2022-01-10 23:42:57,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129836 states, 129826 states have (on average 1.8436676782770784) internal successors, (239356), 129835 states have internal predecessors, (239356), 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) [2022-01-10 23:42:57,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129836 states to 129836 states and 239356 transitions. [2022-01-10 23:42:57,809 INFO L78 Accepts]: Start accepts. Automaton has 129836 states and 239356 transitions. Word has length 72 [2022-01-10 23:42:57,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:42:57,809 INFO L470 AbstractCegarLoop]: Abstraction has 129836 states and 239356 transitions. [2022-01-10 23:42:57,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 2 states have internal predecessors, (72), 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) [2022-01-10 23:42:57,809 INFO L276 IsEmpty]: Start isEmpty. Operand 129836 states and 239356 transitions. [2022-01-10 23:42:57,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 23:42:57,814 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:42:57,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:42:57,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:42:57,814 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:42:57,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:42:57,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1019913596, now seen corresponding path program 1 times [2022-01-10 23:42:57,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:42:57,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313394736] [2022-01-10 23:42:57,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:42:57,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:42:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:42:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:42:57,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:42:57,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313394736] [2022-01-10 23:42:57,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313394736] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:42:57,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:42:57,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:42:57,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159760477] [2022-01-10 23:42:57,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:42:57,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:42:57,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:42:57,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:42:57,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:42:57,903 INFO L87 Difference]: Start difference. First operand 129836 states and 239356 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2022-01-10 23:43:02,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:02,339 INFO L93 Difference]: Finished difference Result 357978 states and 662143 transitions. [2022-01-10 23:43:02,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:43:02,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) Word has length 73 [2022-01-10 23:43:02,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:02,921 INFO L225 Difference]: With dead ends: 357978 [2022-01-10 23:43:02,921 INFO L226 Difference]: Without dead ends: 238006 [2022-01-10 23:43:03,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:43:03,037 INFO L933 BasicCegarLoop]: 30297 mSDtfsCounter, 13669 mSDsluCounter, 16574 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13669 SdHoareTripleChecker+Valid, 46871 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:03,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13669 Valid, 46871 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 23:43:03,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238006 states. [2022-01-10 23:43:06,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238006 to 127756. [2022-01-10 23:43:06,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127756 states, 127746 states have (on average 1.8436271977204766) internal successors, (235516), 127755 states have internal predecessors, (235516), 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) [2022-01-10 23:43:06,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127756 states to 127756 states and 235516 transitions. [2022-01-10 23:43:06,978 INFO L78 Accepts]: Start accepts. Automaton has 127756 states and 235516 transitions. Word has length 73 [2022-01-10 23:43:06,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:06,979 INFO L470 AbstractCegarLoop]: Abstraction has 127756 states and 235516 transitions. [2022-01-10 23:43:06,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2022-01-10 23:43:06,979 INFO L276 IsEmpty]: Start isEmpty. Operand 127756 states and 235516 transitions. [2022-01-10 23:43:06,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 23:43:06,992 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:06,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:43:06,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:43:06,993 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:43:06,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:06,994 INFO L85 PathProgramCache]: Analyzing trace with hash 26005430, now seen corresponding path program 1 times [2022-01-10 23:43:06,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:06,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970148086] [2022-01-10 23:43:06,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:06,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:07,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:07,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:07,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970148086] [2022-01-10 23:43:07,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970148086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:07,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:07,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:43:07,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777728228] [2022-01-10 23:43:07,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:07,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:43:07,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:07,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:43:07,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:43:07,130 INFO L87 Difference]: Start difference. First operand 127756 states and 235516 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)