/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/combinations/Problem05_label45+token_ring.12.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 01:17:44,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 01:17:44,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 01:17:44,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 01:17:44,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 01:17:44,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 01:17:44,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 01:17:44,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 01:17:44,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 01:17:44,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 01:17:44,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 01:17:44,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 01:17:44,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 01:17:44,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 01:17:44,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 01:17:44,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 01:17:44,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 01:17:44,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 01:17:44,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 01:17:44,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 01:17:44,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 01:17:44,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 01:17:44,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 01:17:44,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 01:17:44,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 01:17:44,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 01:17:44,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 01:17:44,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 01:17:44,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 01:17:44,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 01:17:44,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 01:17:44,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 01:17:44,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 01:17:44,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 01:17:44,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 01:17:44,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 01:17:44,785 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 [2022-01-11 01:17:44,811 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 01:17:44,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 01:17:44,812 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 01:17:44,812 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 01:17:44,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 01:17:44,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 01:17:44,813 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 01:17:44,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 01:17:44,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 01:17:44,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 01:17:44,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 01:17:44,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 01:17:44,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 01:17:44,814 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 01:17:44,814 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 01:17:44,814 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 01:17:44,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 01:17:44,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 01:17:44,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 01:17:44,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 01:17:44,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 01:17:44,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:17:44,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 01:17:44,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 01:17:44,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 01:17:44,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 01:17:44,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 01:17:44,816 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 01:17:44,816 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 01:17:44,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 01:17:44,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 01:17:44,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 01:17:44,817 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 01:17:44,817 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 01:17:45,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 01:17:45,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 01:17:45,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 01:17:45,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 01:17:45,027 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 01:17:45,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.12.cil-2.c [2022-01-11 01:17:45,079 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ea62cbb1/1a58fbb7de6e4c709eff6789e9edd6a5/FLAG8d38980b8 [2022-01-11 01:17:45,743 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 01:17:45,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.12.cil-2.c [2022-01-11 01:17:45,790 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ea62cbb1/1a58fbb7de6e4c709eff6789e9edd6a5/FLAG8d38980b8 [2022-01-11 01:17:45,826 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ea62cbb1/1a58fbb7de6e4c709eff6789e9edd6a5 [2022-01-11 01:17:45,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 01:17:45,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 01:17:45,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 01:17:45,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 01:17:45,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 01:17:45,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:17:45" (1/1) ... [2022-01-11 01:17:45,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46dd9ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:45, skipping insertion in model container [2022-01-11 01:17:45,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:17:45" (1/1) ... [2022-01-11 01:17:45,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 01:17:45,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 01:17:47,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.12.cil-2.c[380323,380336] [2022-01-11 01:17:47,154 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.12.cil-2.c[383339,383352] [2022-01-11 01:17:47,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:17:47,390 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 01:17:47,959 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.12.cil-2.c[380323,380336] [2022-01-11 01:17:47,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.12.cil-2.c[383339,383352] [2022-01-11 01:17:47,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:17:48,035 INFO L208 MainTranslator]: Completed translation [2022-01-11 01:17:48,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:48 WrapperNode [2022-01-11 01:17:48,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 01:17:48,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 01:17:48,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 01:17:48,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 01:17:48,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:48" (1/1) ... [2022-01-11 01:17:48,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:48" (1/1) ... [2022-01-11 01:17:48,551 INFO L137 Inliner]: procedures = 69, calls = 77, calls flagged for inlining = 72, calls inlined = 279, statements flattened = 16469 [2022-01-11 01:17:48,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 01:17:48,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 01:17:48,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 01:17:48,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 01:17:48,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:48" (1/1) ... [2022-01-11 01:17:48,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:48" (1/1) ... [2022-01-11 01:17:48,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:48" (1/1) ... [2022-01-11 01:17:48,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:48" (1/1) ... [2022-01-11 01:17:48,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:48" (1/1) ... [2022-01-11 01:17:48,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:48" (1/1) ... [2022-01-11 01:17:48,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:48" (1/1) ... [2022-01-11 01:17:48,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 01:17:48,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 01:17:48,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 01:17:48,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 01:17:48,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:48" (1/1) ... [2022-01-11 01:17:48,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:17:48,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:17:48,925 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) [2022-01-11 01:17:48,927 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 [2022-01-11 01:17:48,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 01:17:48,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 01:17:48,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 01:17:48,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 01:17:49,053 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 01:17:49,054 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 01:17:56,509 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 01:17:56,538 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 01:17:56,538 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-01-11 01:17:56,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:17:56 BoogieIcfgContainer [2022-01-11 01:17:56,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 01:17:56,543 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 01:17:56,543 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 01:17:56,544 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 01:17:56,546 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:17:56" (1/1) ... [2022-01-11 01:17:57,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:17:57 BasicIcfg [2022-01-11 01:17:57,995 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 01:17:57,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 01:17:57,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 01:17:57,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 01:17:57,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:17:45" (1/4) ... [2022-01-11 01:17:57,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ed6f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:17:57, skipping insertion in model container [2022-01-11 01:17:57,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:48" (2/4) ... [2022-01-11 01:17:58,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ed6f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:17:57, skipping insertion in model container [2022-01-11 01:17:58,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:17:56" (3/4) ... [2022-01-11 01:17:58,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ed6f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:17:58, skipping insertion in model container [2022-01-11 01:17:58,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:17:57" (4/4) ... [2022-01-11 01:17:58,001 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.12.cil-2.cTransformedIcfg [2022-01-11 01:17:58,007 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 01:17:58,007 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-11 01:17:58,062 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 01:17:58,070 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 [2022-01-11 01:17:58,070 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-11 01:17:58,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 3975 states, 3972 states have (on average 1.70392749244713) internal successors, (6768), 3974 states have internal predecessors, (6768), 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) [2022-01-11 01:17:58,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:17:58,277 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:17:58,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:17:58,278 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:17:58,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:17:58,287 INFO L85 PathProgramCache]: Analyzing trace with hash 900996116, now seen corresponding path program 1 times [2022-01-11 01:17:58,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:17:58,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885946469] [2022-01-11 01:17:58,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:17:58,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:17:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:17:58,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:17:58,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:17:58,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885946469] [2022-01-11 01:17:58,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885946469] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:17:58,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:17:58,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:17:58,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318240138] [2022-01-11 01:17:58,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:17:58,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:17:58,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:17:58,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:17:58,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:17:58,637 INFO L87 Difference]: Start difference. First operand has 3975 states, 3972 states have (on average 1.70392749244713) internal successors, (6768), 3974 states have internal predecessors, (6768), 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 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:17:58,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:17:58,880 INFO L93 Difference]: Finished difference Result 9465 states and 15784 transitions. [2022-01-11 01:17:58,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:17:58,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:17:58,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:17:58,914 INFO L225 Difference]: With dead ends: 9465 [2022-01-11 01:17:58,915 INFO L226 Difference]: Without dead ends: 5439 [2022-01-11 01:17:58,926 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 [2022-01-11 01:17:58,929 INFO L933 BasicCegarLoop]: 6667 mSDtfsCounter, 6516 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6516 SdHoareTripleChecker+Valid, 9046 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:17:58,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6516 Valid, 9046 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:17:58,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5439 states. [2022-01-11 01:17:59,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5439 to 5437. [2022-01-11 01:17:59,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6281508739650414) internal successors, (8849), 5436 states have internal predecessors, (8849), 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) [2022-01-11 01:17:59,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8849 transitions. [2022-01-11 01:17:59,111 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8849 transitions. Word has length 165 [2022-01-11 01:17:59,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:17:59,111 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8849 transitions. [2022-01-11 01:17:59,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:17:59,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8849 transitions. [2022-01-11 01:17:59,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:17:59,117 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:17:59,117 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:17:59,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 01:17:59,118 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:17:59,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:17:59,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1696253644, now seen corresponding path program 1 times [2022-01-11 01:17:59,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:17:59,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146282345] [2022-01-11 01:17:59,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:17:59,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:17:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:17:59,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:17:59,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:17:59,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146282345] [2022-01-11 01:17:59,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146282345] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:17:59,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:17:59,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:17:59,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944999844] [2022-01-11 01:17:59,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:17:59,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:17:59,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:17:59,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:17:59,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:17:59,242 INFO L87 Difference]: Start difference. First operand 5437 states and 8849 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:17:59,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:17:59,344 INFO L93 Difference]: Finished difference Result 8732 states and 13704 transitions. [2022-01-11 01:17:59,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:17:59,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:17:59,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:17:59,363 INFO L225 Difference]: With dead ends: 8732 [2022-01-11 01:17:59,364 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:17:59,371 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 [2022-01-11 01:17:59,372 INFO L933 BasicCegarLoop]: 6594 mSDtfsCounter, 6578 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6578 SdHoareTripleChecker+Valid, 6594 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:17:59,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6578 Valid, 6594 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:17:59,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:17:59,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:17:59,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6266789328426863) internal successors, (8841), 5436 states have internal predecessors, (8841), 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) [2022-01-11 01:17:59,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8841 transitions. [2022-01-11 01:17:59,496 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8841 transitions. Word has length 165 [2022-01-11 01:17:59,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:17:59,497 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8841 transitions. [2022-01-11 01:17:59,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:17:59,498 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8841 transitions. [2022-01-11 01:17:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:17:59,504 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:17:59,505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:17:59,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 01:17:59,511 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:17:59,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:17:59,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1845173844, now seen corresponding path program 1 times [2022-01-11 01:17:59,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:17:59,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071193998] [2022-01-11 01:17:59,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:17:59,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:17:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:17:59,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:17:59,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:17:59,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071193998] [2022-01-11 01:17:59,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071193998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:17:59,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:17:59,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:17:59,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116596628] [2022-01-11 01:17:59,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:17:59,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:17:59,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:17:59,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:17:59,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:17:59,602 INFO L87 Difference]: Start difference. First operand 5437 states and 8841 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:17:59,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:17:59,698 INFO L93 Difference]: Finished difference Result 8731 states and 13687 transitions. [2022-01-11 01:17:59,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:17:59,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:17:59,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:17:59,715 INFO L225 Difference]: With dead ends: 8731 [2022-01-11 01:17:59,715 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:17:59,724 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 [2022-01-11 01:17:59,726 INFO L933 BasicCegarLoop]: 6589 mSDtfsCounter, 6572 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6572 SdHoareTripleChecker+Valid, 6589 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:17:59,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6572 Valid, 6589 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:17:59,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:17:59,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:17:59,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6252069917203311) internal successors, (8833), 5436 states have internal predecessors, (8833), 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) [2022-01-11 01:17:59,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8833 transitions. [2022-01-11 01:17:59,856 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8833 transitions. Word has length 165 [2022-01-11 01:17:59,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:17:59,856 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8833 transitions. [2022-01-11 01:17:59,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:17:59,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8833 transitions. [2022-01-11 01:17:59,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:17:59,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:17:59,859 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:17:59,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 01:17:59,860 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:17:59,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:17:59,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1543771444, now seen corresponding path program 1 times [2022-01-11 01:17:59,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:17:59,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751999266] [2022-01-11 01:17:59,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:17:59,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:17:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:17:59,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:17:59,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:17:59,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751999266] [2022-01-11 01:17:59,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751999266] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:17:59,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:17:59,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:17:59,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462542093] [2022-01-11 01:17:59,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:17:59,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:17:59,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:17:59,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:17:59,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:17:59,930 INFO L87 Difference]: Start difference. First operand 5437 states and 8833 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:00,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:00,187 INFO L93 Difference]: Finished difference Result 8730 states and 13670 transitions. [2022-01-11 01:18:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:00,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:00,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:00,203 INFO L225 Difference]: With dead ends: 8730 [2022-01-11 01:18:00,203 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:00,210 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 [2022-01-11 01:18:00,215 INFO L933 BasicCegarLoop]: 6584 mSDtfsCounter, 6566 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6566 SdHoareTripleChecker+Valid, 6584 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:00,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6566 Valid, 6584 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:00,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:00,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:00,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6237350505979762) internal successors, (8825), 5436 states have internal predecessors, (8825), 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) [2022-01-11 01:18:00,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8825 transitions. [2022-01-11 01:18:00,334 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8825 transitions. Word has length 165 [2022-01-11 01:18:00,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:00,334 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8825 transitions. [2022-01-11 01:18:00,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:00,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8825 transitions. [2022-01-11 01:18:00,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:00,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:00,336 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:00,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 01:18:00,336 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:00,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:00,337 INFO L85 PathProgramCache]: Analyzing trace with hash -544161196, now seen corresponding path program 1 times [2022-01-11 01:18:00,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:00,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533429112] [2022-01-11 01:18:00,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:00,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:00,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:00,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:00,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533429112] [2022-01-11 01:18:00,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533429112] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:00,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:00,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:00,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471564094] [2022-01-11 01:18:00,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:00,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:00,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:00,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:00,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:00,397 INFO L87 Difference]: Start difference. First operand 5437 states and 8825 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:00,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:00,503 INFO L93 Difference]: Finished difference Result 8729 states and 13653 transitions. [2022-01-11 01:18:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:00,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:00,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:00,531 INFO L225 Difference]: With dead ends: 8729 [2022-01-11 01:18:00,532 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:00,554 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 [2022-01-11 01:18:00,554 INFO L933 BasicCegarLoop]: 6579 mSDtfsCounter, 6560 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6560 SdHoareTripleChecker+Valid, 6579 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:00,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6560 Valid, 6579 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:00,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:00,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:00,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.622263109475621) internal successors, (8817), 5436 states have internal predecessors, (8817), 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) [2022-01-11 01:18:00,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8817 transitions. [2022-01-11 01:18:00,750 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8817 transitions. Word has length 165 [2022-01-11 01:18:00,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:00,750 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8817 transitions. [2022-01-11 01:18:00,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:00,750 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8817 transitions. [2022-01-11 01:18:00,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:00,751 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:00,752 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:00,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 01:18:00,752 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:00,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:00,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1328148788, now seen corresponding path program 1 times [2022-01-11 01:18:00,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:00,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956511628] [2022-01-11 01:18:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:00,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:00,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:00,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:00,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956511628] [2022-01-11 01:18:00,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956511628] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:00,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:00,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:00,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993498251] [2022-01-11 01:18:00,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:00,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:00,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:00,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:00,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:00,812 INFO L87 Difference]: Start difference. First operand 5437 states and 8817 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:00,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:00,914 INFO L93 Difference]: Finished difference Result 8728 states and 13636 transitions. [2022-01-11 01:18:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:00,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:00,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:00,925 INFO L225 Difference]: With dead ends: 8728 [2022-01-11 01:18:00,925 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:00,930 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 [2022-01-11 01:18:00,932 INFO L933 BasicCegarLoop]: 6574 mSDtfsCounter, 6554 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6554 SdHoareTripleChecker+Valid, 6574 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:00,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6554 Valid, 6574 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:00,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:01,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:01,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6207911683532659) internal successors, (8809), 5436 states have internal predecessors, (8809), 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) [2022-01-11 01:18:01,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8809 transitions. [2022-01-11 01:18:01,115 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8809 transitions. Word has length 165 [2022-01-11 01:18:01,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:01,115 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8809 transitions. [2022-01-11 01:18:01,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:01,116 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8809 transitions. [2022-01-11 01:18:01,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:01,117 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:01,117 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:01,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 01:18:01,117 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:01,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:01,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1111451220, now seen corresponding path program 1 times [2022-01-11 01:18:01,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:01,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939804509] [2022-01-11 01:18:01,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:01,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:01,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:01,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:01,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939804509] [2022-01-11 01:18:01,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939804509] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:01,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:01,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:01,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195630529] [2022-01-11 01:18:01,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:01,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:01,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:01,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:01,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:01,154 INFO L87 Difference]: Start difference. First operand 5437 states and 8809 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:01,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:01,262 INFO L93 Difference]: Finished difference Result 8727 states and 13619 transitions. [2022-01-11 01:18:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:01,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:01,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:01,272 INFO L225 Difference]: With dead ends: 8727 [2022-01-11 01:18:01,272 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:01,278 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 [2022-01-11 01:18:01,279 INFO L933 BasicCegarLoop]: 6569 mSDtfsCounter, 6548 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6548 SdHoareTripleChecker+Valid, 6569 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:01,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6548 Valid, 6569 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:01,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:01,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:01,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6193192272309107) internal successors, (8801), 5436 states have internal predecessors, (8801), 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) [2022-01-11 01:18:01,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8801 transitions. [2022-01-11 01:18:01,392 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8801 transitions. Word has length 165 [2022-01-11 01:18:01,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:01,393 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8801 transitions. [2022-01-11 01:18:01,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:01,393 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8801 transitions. [2022-01-11 01:18:01,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:01,394 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:01,394 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:01,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 01:18:01,395 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:01,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:01,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1243008308, now seen corresponding path program 1 times [2022-01-11 01:18:01,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:01,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964451074] [2022-01-11 01:18:01,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:01,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:01,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:01,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:01,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964451074] [2022-01-11 01:18:01,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964451074] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:01,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:01,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:01,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930411292] [2022-01-11 01:18:01,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:01,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:01,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:01,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:01,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:01,436 INFO L87 Difference]: Start difference. First operand 5437 states and 8801 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:01,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:01,538 INFO L93 Difference]: Finished difference Result 8726 states and 13602 transitions. [2022-01-11 01:18:01,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:01,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:01,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:01,550 INFO L225 Difference]: With dead ends: 8726 [2022-01-11 01:18:01,551 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:01,557 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 [2022-01-11 01:18:01,557 INFO L933 BasicCegarLoop]: 6564 mSDtfsCounter, 6542 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6542 SdHoareTripleChecker+Valid, 6564 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:01,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6542 Valid, 6564 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:01,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:01,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:01,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6178472861085555) internal successors, (8793), 5436 states have internal predecessors, (8793), 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) [2022-01-11 01:18:01,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8793 transitions. [2022-01-11 01:18:01,677 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8793 transitions. Word has length 165 [2022-01-11 01:18:01,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:01,678 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8793 transitions. [2022-01-11 01:18:01,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:01,678 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8793 transitions. [2022-01-11 01:18:01,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:01,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:01,679 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:01,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 01:18:01,679 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:01,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:01,680 INFO L85 PathProgramCache]: Analyzing trace with hash 138873428, now seen corresponding path program 1 times [2022-01-11 01:18:01,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:01,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282134305] [2022-01-11 01:18:01,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:01,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:01,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:01,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:01,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282134305] [2022-01-11 01:18:01,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282134305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:01,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:01,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:01,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896324446] [2022-01-11 01:18:01,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:01,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:01,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:01,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:01,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:01,722 INFO L87 Difference]: Start difference. First operand 5437 states and 8793 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:01,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:01,874 INFO L93 Difference]: Finished difference Result 8725 states and 13585 transitions. [2022-01-11 01:18:01,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:01,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:01,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:01,884 INFO L225 Difference]: With dead ends: 8725 [2022-01-11 01:18:01,884 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:01,890 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 [2022-01-11 01:18:01,892 INFO L933 BasicCegarLoop]: 6559 mSDtfsCounter, 6536 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6536 SdHoareTripleChecker+Valid, 6559 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:01,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6536 Valid, 6559 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:01,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:02,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:02,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6163753449862006) internal successors, (8785), 5436 states have internal predecessors, (8785), 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) [2022-01-11 01:18:02,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8785 transitions. [2022-01-11 01:18:02,039 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8785 transitions. Word has length 165 [2022-01-11 01:18:02,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:02,040 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8785 transitions. [2022-01-11 01:18:02,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:02,040 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8785 transitions. [2022-01-11 01:18:02,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:02,041 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:02,042 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:02,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 01:18:02,042 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:02,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:02,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1836406476, now seen corresponding path program 1 times [2022-01-11 01:18:02,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:02,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298659173] [2022-01-11 01:18:02,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:02,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:02,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:02,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298659173] [2022-01-11 01:18:02,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298659173] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:02,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:02,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:02,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449217064] [2022-01-11 01:18:02,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:02,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:02,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:02,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:02,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:02,085 INFO L87 Difference]: Start difference. First operand 5437 states and 8785 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:02,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:02,226 INFO L93 Difference]: Finished difference Result 8724 states and 13568 transitions. [2022-01-11 01:18:02,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:02,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:02,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:02,236 INFO L225 Difference]: With dead ends: 8724 [2022-01-11 01:18:02,236 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:02,242 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 [2022-01-11 01:18:02,242 INFO L933 BasicCegarLoop]: 6554 mSDtfsCounter, 6530 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6530 SdHoareTripleChecker+Valid, 6554 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:02,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6530 Valid, 6554 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:02,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:02,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:02,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6149034038638455) internal successors, (8777), 5436 states have internal predecessors, (8777), 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) [2022-01-11 01:18:02,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8777 transitions. [2022-01-11 01:18:02,402 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8777 transitions. Word has length 165 [2022-01-11 01:18:02,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:02,402 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8777 transitions. [2022-01-11 01:18:02,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:02,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8777 transitions. [2022-01-11 01:18:02,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:02,404 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:02,404 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:02,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 01:18:02,404 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:02,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:02,405 INFO L85 PathProgramCache]: Analyzing trace with hash 870821460, now seen corresponding path program 1 times [2022-01-11 01:18:02,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:02,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990494455] [2022-01-11 01:18:02,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:02,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:02,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:02,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:02,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990494455] [2022-01-11 01:18:02,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990494455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:02,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:02,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:02,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382272456] [2022-01-11 01:18:02,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:02,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:02,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:02,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:02,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:02,455 INFO L87 Difference]: Start difference. First operand 5437 states and 8777 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:02,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:02,600 INFO L93 Difference]: Finished difference Result 8723 states and 13551 transitions. [2022-01-11 01:18:02,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:02,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:02,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:02,610 INFO L225 Difference]: With dead ends: 8723 [2022-01-11 01:18:02,610 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:02,615 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 [2022-01-11 01:18:02,617 INFO L933 BasicCegarLoop]: 6549 mSDtfsCounter, 6524 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6524 SdHoareTripleChecker+Valid, 6549 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:02,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6524 Valid, 6549 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:02,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:02,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:02,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6134314627414903) internal successors, (8769), 5436 states have internal predecessors, (8769), 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) [2022-01-11 01:18:02,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8769 transitions. [2022-01-11 01:18:02,773 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8769 transitions. Word has length 165 [2022-01-11 01:18:02,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:02,774 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8769 transitions. [2022-01-11 01:18:02,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:02,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8769 transitions. [2022-01-11 01:18:02,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:02,776 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:02,776 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:02,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 01:18:02,776 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:02,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:02,777 INFO L85 PathProgramCache]: Analyzing trace with hash -565869260, now seen corresponding path program 1 times [2022-01-11 01:18:02,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:02,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795816916] [2022-01-11 01:18:02,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:02,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:02,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:02,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:02,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795816916] [2022-01-11 01:18:02,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795816916] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:02,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:02,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:02,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021792212] [2022-01-11 01:18:02,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:02,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:02,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:02,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:02,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:02,822 INFO L87 Difference]: Start difference. First operand 5437 states and 8769 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:02,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:02,971 INFO L93 Difference]: Finished difference Result 8722 states and 13534 transitions. [2022-01-11 01:18:02,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:02,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:02,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:02,980 INFO L225 Difference]: With dead ends: 8722 [2022-01-11 01:18:02,980 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:02,985 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 [2022-01-11 01:18:02,986 INFO L933 BasicCegarLoop]: 6544 mSDtfsCounter, 6518 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6518 SdHoareTripleChecker+Valid, 6544 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:02,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6518 Valid, 6544 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:02,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:03,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:03,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6119595216191351) internal successors, (8761), 5436 states have internal predecessors, (8761), 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) [2022-01-11 01:18:03,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8761 transitions. [2022-01-11 01:18:03,161 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8761 transitions. Word has length 165 [2022-01-11 01:18:03,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:03,161 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8761 transitions. [2022-01-11 01:18:03,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:03,161 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8761 transitions. [2022-01-11 01:18:03,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:03,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:03,163 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:03,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 01:18:03,163 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:03,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:03,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1465995860, now seen corresponding path program 1 times [2022-01-11 01:18:03,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:03,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395387321] [2022-01-11 01:18:03,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:03,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:03,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:03,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:03,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395387321] [2022-01-11 01:18:03,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395387321] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:03,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:03,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:03,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003547027] [2022-01-11 01:18:03,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:03,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:03,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:03,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:03,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:03,211 INFO L87 Difference]: Start difference. First operand 5437 states and 8761 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:03,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:03,411 INFO L93 Difference]: Finished difference Result 8721 states and 13517 transitions. [2022-01-11 01:18:03,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:03,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:03,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:03,421 INFO L225 Difference]: With dead ends: 8721 [2022-01-11 01:18:03,421 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:03,427 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 [2022-01-11 01:18:03,428 INFO L933 BasicCegarLoop]: 6509 mSDtfsCounter, 6365 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6365 SdHoareTripleChecker+Valid, 6637 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:03,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6365 Valid, 6637 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:03,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:03,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:03,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6053357865685371) internal successors, (8725), 5436 states have internal predecessors, (8725), 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) [2022-01-11 01:18:03,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8725 transitions. [2022-01-11 01:18:03,557 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8725 transitions. Word has length 165 [2022-01-11 01:18:03,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:03,557 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8725 transitions. [2022-01-11 01:18:03,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:03,558 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8725 transitions. [2022-01-11 01:18:03,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:03,559 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:03,559 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:03,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 01:18:03,559 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:03,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:03,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1090569293, now seen corresponding path program 1 times [2022-01-11 01:18:03,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:03,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883519046] [2022-01-11 01:18:03,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:03,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:03,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:03,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:03,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883519046] [2022-01-11 01:18:03,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883519046] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:03,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:03,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:03,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876295151] [2022-01-11 01:18:03,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:03,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:03,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:03,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:03,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:03,602 INFO L87 Difference]: Start difference. First operand 5437 states and 8725 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:03,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:03,753 INFO L93 Difference]: Finished difference Result 8720 states and 13444 transitions. [2022-01-11 01:18:03,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:03,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:03,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:03,762 INFO L225 Difference]: With dead ends: 8720 [2022-01-11 01:18:03,763 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:03,767 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 [2022-01-11 01:18:03,768 INFO L933 BasicCegarLoop]: 6489 mSDtfsCounter, 6345 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6345 SdHoareTripleChecker+Valid, 6616 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:03,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6345 Valid, 6616 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:03,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:03,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:03,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5987120515179394) internal successors, (8689), 5436 states have internal predecessors, (8689), 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) [2022-01-11 01:18:03,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8689 transitions. [2022-01-11 01:18:03,903 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8689 transitions. Word has length 165 [2022-01-11 01:18:03,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:03,903 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8689 transitions. [2022-01-11 01:18:03,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:03,903 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8689 transitions. [2022-01-11 01:18:03,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:03,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:03,904 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:03,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 01:18:03,905 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:03,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:03,905 INFO L85 PathProgramCache]: Analyzing trace with hash -797100398, now seen corresponding path program 1 times [2022-01-11 01:18:03,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:03,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022410779] [2022-01-11 01:18:03,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:03,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:03,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:03,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:03,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022410779] [2022-01-11 01:18:03,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022410779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:03,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:03,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:03,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865635376] [2022-01-11 01:18:03,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:03,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:03,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:03,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:03,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:03,947 INFO L87 Difference]: Start difference. First operand 5437 states and 8689 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:04,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:04,107 INFO L93 Difference]: Finished difference Result 8718 states and 13369 transitions. [2022-01-11 01:18:04,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:04,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:04,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:04,116 INFO L225 Difference]: With dead ends: 8718 [2022-01-11 01:18:04,116 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:04,122 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 [2022-01-11 01:18:04,123 INFO L933 BasicCegarLoop]: 6469 mSDtfsCounter, 6324 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6324 SdHoareTripleChecker+Valid, 6595 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:04,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6324 Valid, 6595 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:04,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:04,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:04,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5920883164673414) internal successors, (8653), 5436 states have internal predecessors, (8653), 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) [2022-01-11 01:18:04,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8653 transitions. [2022-01-11 01:18:04,289 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8653 transitions. Word has length 165 [2022-01-11 01:18:04,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:04,290 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8653 transitions. [2022-01-11 01:18:04,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:04,290 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8653 transitions. [2022-01-11 01:18:04,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:04,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:04,291 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:04,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 01:18:04,292 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:04,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:04,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1292804111, now seen corresponding path program 1 times [2022-01-11 01:18:04,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:04,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717581796] [2022-01-11 01:18:04,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:04,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:04,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:04,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:04,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717581796] [2022-01-11 01:18:04,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717581796] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:04,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:04,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:04,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212391872] [2022-01-11 01:18:04,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:04,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:04,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:04,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:04,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:04,333 INFO L87 Difference]: Start difference. First operand 5437 states and 8653 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:04,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:04,526 INFO L93 Difference]: Finished difference Result 8717 states and 13296 transitions. [2022-01-11 01:18:04,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:04,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:04,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:04,536 INFO L225 Difference]: With dead ends: 8717 [2022-01-11 01:18:04,536 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:04,541 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 [2022-01-11 01:18:04,541 INFO L933 BasicCegarLoop]: 6449 mSDtfsCounter, 6304 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6304 SdHoareTripleChecker+Valid, 6574 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:04,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6304 Valid, 6574 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:04,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:04,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:04,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5854645814167434) internal successors, (8617), 5436 states have internal predecessors, (8617), 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) [2022-01-11 01:18:04,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8617 transitions. [2022-01-11 01:18:04,675 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8617 transitions. Word has length 165 [2022-01-11 01:18:04,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:04,675 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8617 transitions. [2022-01-11 01:18:04,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:04,675 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8617 transitions. [2022-01-11 01:18:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:04,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:04,676 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:04,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 01:18:04,677 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:04,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:04,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1517848144, now seen corresponding path program 1 times [2022-01-11 01:18:04,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:04,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590730546] [2022-01-11 01:18:04,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:04,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:04,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:04,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:04,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590730546] [2022-01-11 01:18:04,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590730546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:04,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:04,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:04,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879806843] [2022-01-11 01:18:04,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:04,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:04,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:04,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:04,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:04,728 INFO L87 Difference]: Start difference. First operand 5437 states and 8617 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:04,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:04,880 INFO L93 Difference]: Finished difference Result 8716 states and 13223 transitions. [2022-01-11 01:18:04,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:04,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:04,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:04,889 INFO L225 Difference]: With dead ends: 8716 [2022-01-11 01:18:04,890 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:04,894 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 [2022-01-11 01:18:04,894 INFO L933 BasicCegarLoop]: 6429 mSDtfsCounter, 6284 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6284 SdHoareTripleChecker+Valid, 6553 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:04,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6284 Valid, 6553 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:04,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:05,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:05,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5788408463661454) internal successors, (8581), 5436 states have internal predecessors, (8581), 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) [2022-01-11 01:18:05,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8581 transitions. [2022-01-11 01:18:05,035 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8581 transitions. Word has length 165 [2022-01-11 01:18:05,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:05,035 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8581 transitions. [2022-01-11 01:18:05,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:05,035 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8581 transitions. [2022-01-11 01:18:05,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:05,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:05,037 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:05,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 01:18:05,037 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:05,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:05,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1090166319, now seen corresponding path program 1 times [2022-01-11 01:18:05,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:05,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670416586] [2022-01-11 01:18:05,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:05,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:05,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:05,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:05,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670416586] [2022-01-11 01:18:05,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670416586] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:05,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:05,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:05,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490523261] [2022-01-11 01:18:05,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:05,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:05,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:05,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:05,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:05,096 INFO L87 Difference]: Start difference. First operand 5437 states and 8581 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:05,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:05,245 INFO L93 Difference]: Finished difference Result 8715 states and 13150 transitions. [2022-01-11 01:18:05,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:05,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:05,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:05,255 INFO L225 Difference]: With dead ends: 8715 [2022-01-11 01:18:05,256 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:05,261 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 [2022-01-11 01:18:05,261 INFO L933 BasicCegarLoop]: 6409 mSDtfsCounter, 6264 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6264 SdHoareTripleChecker+Valid, 6532 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:05,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6264 Valid, 6532 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:05,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:05,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:05,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5722171113155474) internal successors, (8545), 5436 states have internal predecessors, (8545), 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) [2022-01-11 01:18:05,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8545 transitions. [2022-01-11 01:18:05,401 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8545 transitions. Word has length 165 [2022-01-11 01:18:05,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:05,402 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8545 transitions. [2022-01-11 01:18:05,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:05,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8545 transitions. [2022-01-11 01:18:05,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:05,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:05,403 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:05,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 01:18:05,403 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:05,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:05,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1064043278, now seen corresponding path program 1 times [2022-01-11 01:18:05,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:05,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590249968] [2022-01-11 01:18:05,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:05,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:05,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:05,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:05,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590249968] [2022-01-11 01:18:05,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590249968] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:05,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:05,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:05,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027139428] [2022-01-11 01:18:05,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:05,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:05,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:05,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:05,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:05,447 INFO L87 Difference]: Start difference. First operand 5437 states and 8545 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:05,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:05,602 INFO L93 Difference]: Finished difference Result 8714 states and 13077 transitions. [2022-01-11 01:18:05,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:05,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:05,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:05,613 INFO L225 Difference]: With dead ends: 8714 [2022-01-11 01:18:05,613 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:05,620 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 [2022-01-11 01:18:05,621 INFO L933 BasicCegarLoop]: 6389 mSDtfsCounter, 6244 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6244 SdHoareTripleChecker+Valid, 6511 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:05,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6244 Valid, 6511 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:05,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:05,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:05,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5655933762649494) internal successors, (8509), 5436 states have internal predecessors, (8509), 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) [2022-01-11 01:18:05,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8509 transitions. [2022-01-11 01:18:05,768 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8509 transitions. Word has length 165 [2022-01-11 01:18:05,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:05,768 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8509 transitions. [2022-01-11 01:18:05,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:05,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8509 transitions. [2022-01-11 01:18:05,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:05,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:05,769 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:05,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 01:18:05,769 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:05,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:05,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1003239059, now seen corresponding path program 1 times [2022-01-11 01:18:05,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:05,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217855975] [2022-01-11 01:18:05,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:05,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:05,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:05,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:05,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217855975] [2022-01-11 01:18:05,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217855975] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:05,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:05,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:05,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957226791] [2022-01-11 01:18:05,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:05,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:05,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:05,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:05,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:05,816 INFO L87 Difference]: Start difference. First operand 5437 states and 8509 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:05,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:05,965 INFO L93 Difference]: Finished difference Result 8713 states and 13004 transitions. [2022-01-11 01:18:05,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:05,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:05,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:05,974 INFO L225 Difference]: With dead ends: 8713 [2022-01-11 01:18:05,974 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:05,979 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 [2022-01-11 01:18:05,980 INFO L933 BasicCegarLoop]: 6369 mSDtfsCounter, 6224 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6224 SdHoareTripleChecker+Valid, 6490 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:05,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6224 Valid, 6490 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:05,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:06,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:06,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5589696412143514) internal successors, (8473), 5436 states have internal predecessors, (8473), 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) [2022-01-11 01:18:06,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8473 transitions. [2022-01-11 01:18:06,127 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8473 transitions. Word has length 165 [2022-01-11 01:18:06,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:06,128 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8473 transitions. [2022-01-11 01:18:06,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:06,128 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8473 transitions. [2022-01-11 01:18:06,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:06,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:06,129 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:06,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 01:18:06,129 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:06,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:06,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1806904524, now seen corresponding path program 1 times [2022-01-11 01:18:06,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:06,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435793838] [2022-01-11 01:18:06,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:06,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:06,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:06,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:06,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435793838] [2022-01-11 01:18:06,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435793838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:06,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:06,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:06,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786063444] [2022-01-11 01:18:06,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:06,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:06,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:06,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:06,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:06,167 INFO L87 Difference]: Start difference. First operand 5437 states and 8473 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:06,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:06,369 INFO L93 Difference]: Finished difference Result 8712 states and 12931 transitions. [2022-01-11 01:18:06,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:06,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:06,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:06,377 INFO L225 Difference]: With dead ends: 8712 [2022-01-11 01:18:06,377 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:06,380 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 [2022-01-11 01:18:06,380 INFO L933 BasicCegarLoop]: 6349 mSDtfsCounter, 6204 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6204 SdHoareTripleChecker+Valid, 6469 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:06,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6204 Valid, 6469 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:06,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:06,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:06,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5523459061637535) internal successors, (8437), 5436 states have internal predecessors, (8437), 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) [2022-01-11 01:18:06,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8437 transitions. [2022-01-11 01:18:06,553 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8437 transitions. Word has length 165 [2022-01-11 01:18:06,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:06,554 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8437 transitions. [2022-01-11 01:18:06,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:06,554 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8437 transitions. [2022-01-11 01:18:06,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:06,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:06,555 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:06,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 01:18:06,555 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:06,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:06,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1609014869, now seen corresponding path program 1 times [2022-01-11 01:18:06,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:06,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877460827] [2022-01-11 01:18:06,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:06,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:06,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:06,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:06,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877460827] [2022-01-11 01:18:06,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877460827] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:06,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:06,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:06,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335683023] [2022-01-11 01:18:06,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:06,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:06,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:06,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:06,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:06,588 INFO L87 Difference]: Start difference. First operand 5437 states and 8437 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:06,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:06,764 INFO L93 Difference]: Finished difference Result 8711 states and 12858 transitions. [2022-01-11 01:18:06,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:06,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:06,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:06,771 INFO L225 Difference]: With dead ends: 8711 [2022-01-11 01:18:06,771 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:06,774 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 [2022-01-11 01:18:06,774 INFO L933 BasicCegarLoop]: 6329 mSDtfsCounter, 6184 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6184 SdHoareTripleChecker+Valid, 6448 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:06,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6184 Valid, 6448 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:06,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:06,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:06,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5457221711131555) internal successors, (8401), 5436 states have internal predecessors, (8401), 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) [2022-01-11 01:18:06,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8401 transitions. [2022-01-11 01:18:06,915 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8401 transitions. Word has length 165 [2022-01-11 01:18:06,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:06,915 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8401 transitions. [2022-01-11 01:18:06,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:06,915 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8401 transitions. [2022-01-11 01:18:06,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:06,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:06,916 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:06,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 01:18:06,917 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:06,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:06,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1461091446, now seen corresponding path program 1 times [2022-01-11 01:18:06,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:06,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452010261] [2022-01-11 01:18:06,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:06,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:06,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:06,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:06,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452010261] [2022-01-11 01:18:06,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452010261] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:06,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:06,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:06,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091437996] [2022-01-11 01:18:06,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:06,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:06,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:06,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:06,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:06,950 INFO L87 Difference]: Start difference. First operand 5437 states and 8401 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:07,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:07,133 INFO L93 Difference]: Finished difference Result 8710 states and 12785 transitions. [2022-01-11 01:18:07,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:07,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:07,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:07,139 INFO L225 Difference]: With dead ends: 8710 [2022-01-11 01:18:07,139 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:07,142 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 [2022-01-11 01:18:07,143 INFO L933 BasicCegarLoop]: 6309 mSDtfsCounter, 6164 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6164 SdHoareTripleChecker+Valid, 6427 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:07,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6164 Valid, 6427 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:07,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:07,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:07,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5390984360625575) internal successors, (8365), 5436 states have internal predecessors, (8365), 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) [2022-01-11 01:18:07,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8365 transitions. [2022-01-11 01:18:07,302 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8365 transitions. Word has length 165 [2022-01-11 01:18:07,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:07,302 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8365 transitions. [2022-01-11 01:18:07,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:07,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8365 transitions. [2022-01-11 01:18:07,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:07,304 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:07,304 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:07,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 01:18:07,304 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:07,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:07,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1014497450, now seen corresponding path program 1 times [2022-01-11 01:18:07,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:07,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635527391] [2022-01-11 01:18:07,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:07,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:07,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:07,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:07,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635527391] [2022-01-11 01:18:07,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635527391] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:07,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:07,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:07,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370262711] [2022-01-11 01:18:07,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:07,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:07,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:07,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:07,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:07,338 INFO L87 Difference]: Start difference. First operand 5437 states and 8365 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:07,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:07,524 INFO L93 Difference]: Finished difference Result 8709 states and 12712 transitions. [2022-01-11 01:18:07,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:07,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:07,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:07,531 INFO L225 Difference]: With dead ends: 8709 [2022-01-11 01:18:07,531 INFO L226 Difference]: Without dead ends: 5437 [2022-01-11 01:18:07,535 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 [2022-01-11 01:18:07,535 INFO L933 BasicCegarLoop]: 6289 mSDtfsCounter, 6144 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6144 SdHoareTripleChecker+Valid, 6406 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:07,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6144 Valid, 6406 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:07,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-11 01:18:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-11 01:18:07,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5324747010119595) internal successors, (8329), 5436 states have internal predecessors, (8329), 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) [2022-01-11 01:18:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8329 transitions. [2022-01-11 01:18:07,690 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8329 transitions. Word has length 165 [2022-01-11 01:18:07,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:07,690 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8329 transitions. [2022-01-11 01:18:07,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:07,691 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8329 transitions. [2022-01-11 01:18:07,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:07,691 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:07,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:07,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 01:18:07,692 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:07,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:07,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1795251959, now seen corresponding path program 1 times [2022-01-11 01:18:07,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:07,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51929382] [2022-01-11 01:18:07,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:07,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:07,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:07,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:07,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51929382] [2022-01-11 01:18:07,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51929382] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:07,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:07,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:18:07,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011132972] [2022-01-11 01:18:07,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:07,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:18:07,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:07,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:18:07,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:18:07,746 INFO L87 Difference]: Start difference. First operand 5437 states and 8329 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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) [2022-01-11 01:18:08,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:08,156 INFO L93 Difference]: Finished difference Result 9821 states and 14177 transitions. [2022-01-11 01:18:08,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:18:08,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:08,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:08,167 INFO L225 Difference]: With dead ends: 9821 [2022-01-11 01:18:08,167 INFO L226 Difference]: Without dead ends: 6563 [2022-01-11 01:18:08,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 01:18:08,175 INFO L933 BasicCegarLoop]: 6455 mSDtfsCounter, 6580 mSDsluCounter, 14230 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6580 SdHoareTripleChecker+Valid, 20685 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:08,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6580 Valid, 20685 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:18:08,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6563 states. [2022-01-11 01:18:08,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6563 to 5443. [2022-01-11 01:18:08,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5441 states have (on average 1.526741407829443) internal successors, (8307), 5442 states have internal predecessors, (8307), 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) [2022-01-11 01:18:08,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 8307 transitions. [2022-01-11 01:18:08,382 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 8307 transitions. Word has length 165 [2022-01-11 01:18:08,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:08,382 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 8307 transitions. [2022-01-11 01:18:08,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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) [2022-01-11 01:18:08,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 8307 transitions. [2022-01-11 01:18:08,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:08,384 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:08,384 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:08,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 01:18:08,384 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:08,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:08,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1980423050, now seen corresponding path program 1 times [2022-01-11 01:18:08,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:08,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181602169] [2022-01-11 01:18:08,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:08,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:08,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:08,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:08,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181602169] [2022-01-11 01:18:08,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181602169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:08,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:08,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:08,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526394374] [2022-01-11 01:18:08,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:08,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:08,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:08,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:08,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:08,434 INFO L87 Difference]: Start difference. First operand 5443 states and 8307 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:08,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:08,817 INFO L93 Difference]: Finished difference Result 11646 states and 16418 transitions. [2022-01-11 01:18:08,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:08,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:08,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:08,827 INFO L225 Difference]: With dead ends: 11646 [2022-01-11 01:18:08,827 INFO L226 Difference]: Without dead ends: 8384 [2022-01-11 01:18:08,832 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 [2022-01-11 01:18:08,832 INFO L933 BasicCegarLoop]: 6275 mSDtfsCounter, 6066 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6066 SdHoareTripleChecker+Valid, 8370 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:08,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6066 Valid, 8370 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:08,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8384 states. [2022-01-11 01:18:09,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8384 to 8378. [2022-01-11 01:18:09,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8378 states, 8376 states have (on average 1.4461556829035338) internal successors, (12113), 8377 states have internal predecessors, (12113), 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) [2022-01-11 01:18:09,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8378 states to 8378 states and 12113 transitions. [2022-01-11 01:18:09,175 INFO L78 Accepts]: Start accepts. Automaton has 8378 states and 12113 transitions. Word has length 165 [2022-01-11 01:18:09,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:09,175 INFO L470 AbstractCegarLoop]: Abstraction has 8378 states and 12113 transitions. [2022-01-11 01:18:09,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:09,175 INFO L276 IsEmpty]: Start isEmpty. Operand 8378 states and 12113 transitions. [2022-01-11 01:18:09,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:09,176 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:09,176 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:09,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 01:18:09,176 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:09,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:09,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1861272439, now seen corresponding path program 1 times [2022-01-11 01:18:09,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:09,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913374817] [2022-01-11 01:18:09,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:09,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:09,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:09,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:09,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913374817] [2022-01-11 01:18:09,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913374817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:09,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:09,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:18:09,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671615977] [2022-01-11 01:18:09,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:09,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:18:09,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:09,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:18:09,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:18:09,223 INFO L87 Difference]: Start difference. First operand 8378 states and 12113 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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) [2022-01-11 01:18:09,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:09,872 INFO L93 Difference]: Finished difference Result 18345 states and 25215 transitions. [2022-01-11 01:18:09,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:18:09,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:09,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:09,887 INFO L225 Difference]: With dead ends: 18345 [2022-01-11 01:18:09,888 INFO L226 Difference]: Without dead ends: 12180 [2022-01-11 01:18:09,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 01:18:09,896 INFO L933 BasicCegarLoop]: 6343 mSDtfsCounter, 5720 mSDsluCounter, 16071 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5720 SdHoareTripleChecker+Valid, 22414 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:09,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5720 Valid, 22414 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:18:09,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12180 states. [2022-01-11 01:18:10,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12180 to 8390. [2022-01-11 01:18:10,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8390 states, 8388 states have (on average 1.4391988555078683) internal successors, (12072), 8389 states have internal predecessors, (12072), 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) [2022-01-11 01:18:10,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8390 states to 8390 states and 12072 transitions. [2022-01-11 01:18:10,327 INFO L78 Accepts]: Start accepts. Automaton has 8390 states and 12072 transitions. Word has length 165 [2022-01-11 01:18:10,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:10,327 INFO L470 AbstractCegarLoop]: Abstraction has 8390 states and 12072 transitions. [2022-01-11 01:18:10,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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) [2022-01-11 01:18:10,328 INFO L276 IsEmpty]: Start isEmpty. Operand 8390 states and 12072 transitions. [2022-01-11 01:18:10,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:10,328 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:10,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:10,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 01:18:10,329 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:10,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:10,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1741152566, now seen corresponding path program 1 times [2022-01-11 01:18:10,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:10,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310432899] [2022-01-11 01:18:10,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:10,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:10,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:10,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:10,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310432899] [2022-01-11 01:18:10,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310432899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:10,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:10,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:18:10,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261026062] [2022-01-11 01:18:10,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:10,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:18:10,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:10,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:18:10,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:18:10,383 INFO L87 Difference]: Start difference. First operand 8390 states and 12072 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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) [2022-01-11 01:18:11,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:11,100 INFO L93 Difference]: Finished difference Result 18696 states and 25505 transitions. [2022-01-11 01:18:11,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:18:11,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:11,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:11,117 INFO L225 Difference]: With dead ends: 18696 [2022-01-11 01:18:11,117 INFO L226 Difference]: Without dead ends: 12526 [2022-01-11 01:18:11,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 01:18:11,126 INFO L933 BasicCegarLoop]: 6310 mSDtfsCounter, 5529 mSDsluCounter, 16400 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5529 SdHoareTripleChecker+Valid, 22710 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:11,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5529 Valid, 22710 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:18:11,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12526 states. [2022-01-11 01:18:11,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12526 to 8402. [2022-01-11 01:18:11,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8402 states, 8400 states have (on average 1.4322619047619047) internal successors, (12031), 8401 states have internal predecessors, (12031), 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) [2022-01-11 01:18:11,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8402 states to 8402 states and 12031 transitions. [2022-01-11 01:18:11,583 INFO L78 Accepts]: Start accepts. Automaton has 8402 states and 12031 transitions. Word has length 165 [2022-01-11 01:18:11,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:11,583 INFO L470 AbstractCegarLoop]: Abstraction has 8402 states and 12031 transitions. [2022-01-11 01:18:11,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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) [2022-01-11 01:18:11,583 INFO L276 IsEmpty]: Start isEmpty. Operand 8402 states and 12031 transitions. [2022-01-11 01:18:11,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:11,584 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:11,584 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:11,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 01:18:11,585 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:11,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:11,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1598293451, now seen corresponding path program 1 times [2022-01-11 01:18:11,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:11,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905603764] [2022-01-11 01:18:11,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:11,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:11,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:11,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:11,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905603764] [2022-01-11 01:18:11,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905603764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:11,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:11,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:11,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22249903] [2022-01-11 01:18:11,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:11,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:11,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:11,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:11,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:11,631 INFO L87 Difference]: Start difference. First operand 8402 states and 12031 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:12,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:12,026 INFO L93 Difference]: Finished difference Result 14663 states and 20070 transitions. [2022-01-11 01:18:12,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:12,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:12,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:12,038 INFO L225 Difference]: With dead ends: 14663 [2022-01-11 01:18:12,038 INFO L226 Difference]: Without dead ends: 8402 [2022-01-11 01:18:12,046 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 [2022-01-11 01:18:12,047 INFO L933 BasicCegarLoop]: 6251 mSDtfsCounter, 6131 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6131 SdHoareTripleChecker+Valid, 6251 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:12,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6131 Valid, 6251 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:12,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8402 states. [2022-01-11 01:18:12,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8402 to 8402. [2022-01-11 01:18:12,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8402 states, 8400 states have (on average 1.430595238095238) internal successors, (12017), 8401 states have internal predecessors, (12017), 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) [2022-01-11 01:18:12,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8402 states to 8402 states and 12017 transitions. [2022-01-11 01:18:12,518 INFO L78 Accepts]: Start accepts. Automaton has 8402 states and 12017 transitions. Word has length 165 [2022-01-11 01:18:12,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:12,518 INFO L470 AbstractCegarLoop]: Abstraction has 8402 states and 12017 transitions. [2022-01-11 01:18:12,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:12,518 INFO L276 IsEmpty]: Start isEmpty. Operand 8402 states and 12017 transitions. [2022-01-11 01:18:12,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:12,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:12,519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:12,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 01:18:12,519 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:12,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:12,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1235093846, now seen corresponding path program 1 times [2022-01-11 01:18:12,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:12,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838642666] [2022-01-11 01:18:12,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:12,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:12,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:12,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:12,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838642666] [2022-01-11 01:18:12,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838642666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:12,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:12,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:12,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641456984] [2022-01-11 01:18:12,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:12,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:12,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:12,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:12,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:12,570 INFO L87 Difference]: Start difference. First operand 8402 states and 12017 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:13,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:13,005 INFO L93 Difference]: Finished difference Result 14649 states and 20028 transitions. [2022-01-11 01:18:13,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:13,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:13,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:13,016 INFO L225 Difference]: With dead ends: 14649 [2022-01-11 01:18:13,016 INFO L226 Difference]: Without dead ends: 8402 [2022-01-11 01:18:13,036 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 [2022-01-11 01:18:13,036 INFO L933 BasicCegarLoop]: 6218 mSDtfsCounter, 5981 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5981 SdHoareTripleChecker+Valid, 6331 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:13,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5981 Valid, 6331 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:13,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8402 states. [2022-01-11 01:18:13,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8402 to 8402. [2022-01-11 01:18:13,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8402 states, 8400 states have (on average 1.4257142857142857) internal successors, (11976), 8401 states have internal predecessors, (11976), 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) [2022-01-11 01:18:13,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8402 states to 8402 states and 11976 transitions. [2022-01-11 01:18:13,502 INFO L78 Accepts]: Start accepts. Automaton has 8402 states and 11976 transitions. Word has length 165 [2022-01-11 01:18:13,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:13,502 INFO L470 AbstractCegarLoop]: Abstraction has 8402 states and 11976 transitions. [2022-01-11 01:18:13,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:13,502 INFO L276 IsEmpty]: Start isEmpty. Operand 8402 states and 11976 transitions. [2022-01-11 01:18:13,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:18:13,503 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:13,503 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:13,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 01:18:13,503 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:13,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:13,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1204074039, now seen corresponding path program 1 times [2022-01-11 01:18:13,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:13,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154424718] [2022-01-11 01:18:13,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:13,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:13,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:13,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:13,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154424718] [2022-01-11 01:18:13,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154424718] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:13,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:13,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:13,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159814300] [2022-01-11 01:18:13,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:13,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:13,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:13,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:13,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:13,571 INFO L87 Difference]: Start difference. First operand 8402 states and 11976 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:14,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:14,401 INFO L93 Difference]: Finished difference Result 20685 states and 27673 transitions. [2022-01-11 01:18:14,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:14,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-11 01:18:14,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:14,422 INFO L225 Difference]: With dead ends: 20685 [2022-01-11 01:18:14,422 INFO L226 Difference]: Without dead ends: 14450 [2022-01-11 01:18:14,432 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 [2022-01-11 01:18:14,432 INFO L933 BasicCegarLoop]: 6218 mSDtfsCounter, 6035 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6035 SdHoareTripleChecker+Valid, 8265 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:14,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6035 Valid, 8265 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:18:14,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14450 states. [2022-01-11 01:18:15,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14450 to 14080. [2022-01-11 01:18:15,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14080 states, 14078 states have (on average 1.3631197613297343) internal successors, (19190), 14079 states have internal predecessors, (19190), 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) [2022-01-11 01:18:15,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14080 states to 14080 states and 19190 transitions. [2022-01-11 01:18:15,228 INFO L78 Accepts]: Start accepts. Automaton has 14080 states and 19190 transitions. Word has length 165 [2022-01-11 01:18:15,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:15,228 INFO L470 AbstractCegarLoop]: Abstraction has 14080 states and 19190 transitions. [2022-01-11 01:18:15,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-11 01:18:15,228 INFO L276 IsEmpty]: Start isEmpty. Operand 14080 states and 19190 transitions. [2022-01-11 01:18:15,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-11 01:18:15,271 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:15,271 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:15,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-11 01:18:15,272 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:15,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:15,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1028298530, now seen corresponding path program 1 times [2022-01-11 01:18:15,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:15,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278361215] [2022-01-11 01:18:15,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:15,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:15,329 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:15,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:15,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278361215] [2022-01-11 01:18:15,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278361215] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:15,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:15,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:18:15,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970070345] [2022-01-11 01:18:15,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:15,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:15,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:15,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:15,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:15,331 INFO L87 Difference]: Start difference. First operand 14080 states and 19190 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2022-01-11 01:18:16,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:16,885 INFO L93 Difference]: Finished difference Result 37588 states and 49167 transitions. [2022-01-11 01:18:16,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:16,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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 268 [2022-01-11 01:18:16,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:16,922 INFO L225 Difference]: With dead ends: 37588 [2022-01-11 01:18:16,923 INFO L226 Difference]: Without dead ends: 25681 [2022-01-11 01:18:16,932 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 [2022-01-11 01:18:16,933 INFO L933 BasicCegarLoop]: 6215 mSDtfsCounter, 6068 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6068 SdHoareTripleChecker+Valid, 8262 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:16,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6068 Valid, 8262 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:16,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25681 states. [2022-01-11 01:18:18,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25681 to 25003. [2022-01-11 01:18:18,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25003 states, 25001 states have (on average 1.3221871125154994) internal successors, (33056), 25002 states have internal predecessors, (33056), 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) [2022-01-11 01:18:18,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25003 states to 25003 states and 33056 transitions. [2022-01-11 01:18:18,537 INFO L78 Accepts]: Start accepts. Automaton has 25003 states and 33056 transitions. Word has length 268 [2022-01-11 01:18:18,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:18,538 INFO L470 AbstractCegarLoop]: Abstraction has 25003 states and 33056 transitions. [2022-01-11 01:18:18,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2022-01-11 01:18:18,538 INFO L276 IsEmpty]: Start isEmpty. Operand 25003 states and 33056 transitions. [2022-01-11 01:18:18,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-11 01:18:18,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:18,550 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:18,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-11 01:18:18,550 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:18,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:18,550 INFO L85 PathProgramCache]: Analyzing trace with hash 866680546, now seen corresponding path program 1 times [2022-01-11 01:18:18,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:18,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424151120] [2022-01-11 01:18:18,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:18,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:18,624 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:18,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:18,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424151120] [2022-01-11 01:18:18,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424151120] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:18,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:18,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:18:18,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073280615] [2022-01-11 01:18:18,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:18,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:18:18,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:18,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:18:18,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:18:18,626 INFO L87 Difference]: Start difference. First operand 25003 states and 33056 transitions. Second operand has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 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) [2022-01-11 01:18:21,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:21,620 INFO L93 Difference]: Finished difference Result 66783 states and 86497 transitions. [2022-01-11 01:18:21,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:18:21,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 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 268 [2022-01-11 01:18:21,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:21,681 INFO L225 Difference]: With dead ends: 66783 [2022-01-11 01:18:21,681 INFO L226 Difference]: Without dead ends: 44019 [2022-01-11 01:18:21,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 01:18:21,707 INFO L933 BasicCegarLoop]: 6193 mSDtfsCounter, 4958 mSDsluCounter, 16927 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4958 SdHoareTripleChecker+Valid, 23120 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:21,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4958 Valid, 23120 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:18:21,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44019 states. [2022-01-11 01:18:23,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44019 to 25051. [2022-01-11 01:18:23,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25051 states, 25049 states have (on average 1.3138648249431115) internal successors, (32911), 25050 states have internal predecessors, (32911), 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) [2022-01-11 01:18:23,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25051 states to 25051 states and 32911 transitions. [2022-01-11 01:18:23,683 INFO L78 Accepts]: Start accepts. Automaton has 25051 states and 32911 transitions. Word has length 268 [2022-01-11 01:18:23,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:23,683 INFO L470 AbstractCegarLoop]: Abstraction has 25051 states and 32911 transitions. [2022-01-11 01:18:23,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 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) [2022-01-11 01:18:23,684 INFO L276 IsEmpty]: Start isEmpty. Operand 25051 states and 32911 transitions. [2022-01-11 01:18:23,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-11 01:18:23,693 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:23,693 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:23,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-11 01:18:23,694 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:23,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:23,694 INFO L85 PathProgramCache]: Analyzing trace with hash -916837536, now seen corresponding path program 1 times [2022-01-11 01:18:23,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:23,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162648672] [2022-01-11 01:18:23,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:23,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:23,758 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:23,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:23,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162648672] [2022-01-11 01:18:23,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162648672] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:23,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:23,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:18:23,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627521050] [2022-01-11 01:18:23,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:23,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:23,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:23,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:23,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:23,760 INFO L87 Difference]: Start difference. First operand 25051 states and 32911 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2022-01-11 01:18:27,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:27,210 INFO L93 Difference]: Finished difference Result 69409 states and 88541 transitions. [2022-01-11 01:18:27,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:27,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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 268 [2022-01-11 01:18:27,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:27,277 INFO L225 Difference]: With dead ends: 69409 [2022-01-11 01:18:27,277 INFO L226 Difference]: Without dead ends: 46639 [2022-01-11 01:18:27,301 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 [2022-01-11 01:18:27,302 INFO L933 BasicCegarLoop]: 7640 mSDtfsCounter, 5783 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5783 SdHoareTripleChecker+Valid, 9880 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:27,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5783 Valid, 9880 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:27,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46639 states. [2022-01-11 01:18:30,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46639 to 46637. [2022-01-11 01:18:30,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46637 states, 46635 states have (on average 1.2804760373110324) internal successors, (59715), 46636 states have internal predecessors, (59715), 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) [2022-01-11 01:18:30,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46637 states to 46637 states and 59715 transitions. [2022-01-11 01:18:30,852 INFO L78 Accepts]: Start accepts. Automaton has 46637 states and 59715 transitions. Word has length 268 [2022-01-11 01:18:30,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:30,853 INFO L470 AbstractCegarLoop]: Abstraction has 46637 states and 59715 transitions. [2022-01-11 01:18:30,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2022-01-11 01:18:30,853 INFO L276 IsEmpty]: Start isEmpty. Operand 46637 states and 59715 transitions. [2022-01-11 01:18:30,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-11 01:18:30,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:30,868 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:30,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-11 01:18:30,869 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:30,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:30,869 INFO L85 PathProgramCache]: Analyzing trace with hash -432200705, now seen corresponding path program 1 times [2022-01-11 01:18:30,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:30,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55082790] [2022-01-11 01:18:30,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:30,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:30,902 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 01:18:30,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:30,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55082790] [2022-01-11 01:18:30,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55082790] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:30,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:30,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:18:30,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591573258] [2022-01-11 01:18:30,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:30,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:30,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:30,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:30,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:30,904 INFO L87 Difference]: Start difference. First operand 46637 states and 59715 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2022-01-11 01:18:34,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:34,371 INFO L93 Difference]: Finished difference Result 90839 states and 115096 transitions. [2022-01-11 01:18:34,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:34,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 268 [2022-01-11 01:18:34,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:34,433 INFO L225 Difference]: With dead ends: 90839 [2022-01-11 01:18:34,433 INFO L226 Difference]: Without dead ends: 46483 [2022-01-11 01:18:34,459 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 [2022-01-11 01:18:34,459 INFO L933 BasicCegarLoop]: 6216 mSDtfsCounter, 2254 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 10174 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:34,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2254 Valid, 10174 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:34,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46483 states. [2022-01-11 01:18:37,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46483 to 46483. [2022-01-11 01:18:37,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46483 states, 46481 states have (on average 1.280738366214152) internal successors, (59530), 46482 states have internal predecessors, (59530), 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) [2022-01-11 01:18:38,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46483 states to 46483 states and 59530 transitions. [2022-01-11 01:18:38,039 INFO L78 Accepts]: Start accepts. Automaton has 46483 states and 59530 transitions. Word has length 268 [2022-01-11 01:18:38,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:38,039 INFO L470 AbstractCegarLoop]: Abstraction has 46483 states and 59530 transitions. [2022-01-11 01:18:38,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2022-01-11 01:18:38,039 INFO L276 IsEmpty]: Start isEmpty. Operand 46483 states and 59530 transitions. [2022-01-11 01:18:38,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-01-11 01:18:38,055 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:38,055 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:18:38,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-11 01:18:38,055 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:38,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:38,056 INFO L85 PathProgramCache]: Analyzing trace with hash -502289946, now seen corresponding path program 1 times [2022-01-11 01:18:38,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:38,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626710569] [2022-01-11 01:18:38,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:38,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:38,111 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:38,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:38,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626710569] [2022-01-11 01:18:38,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626710569] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:38,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:38,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:18:38,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804800883] [2022-01-11 01:18:38,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:38,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:38,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:38,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:38,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:38,113 INFO L87 Difference]: Start difference. First operand 46483 states and 59530 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2022-01-11 01:18:44,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:44,816 INFO L93 Difference]: Finished difference Result 134144 states and 168970 transitions. [2022-01-11 01:18:44,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:44,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 269 [2022-01-11 01:18:44,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:44,940 INFO L225 Difference]: With dead ends: 134144 [2022-01-11 01:18:44,941 INFO L226 Difference]: Without dead ends: 89942 [2022-01-11 01:18:44,975 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 [2022-01-11 01:18:44,975 INFO L933 BasicCegarLoop]: 6637 mSDtfsCounter, 6036 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6036 SdHoareTripleChecker+Valid, 8860 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:44,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6036 Valid, 8860 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:45,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89942 states.