/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_label43+token_ring.14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 01:14:57,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 01:14:57,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 01:14:57,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 01:14:57,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 01:14:57,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 01:14:57,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 01:14:57,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 01:14:57,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 01:14:57,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 01:14:57,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 01:14:57,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 01:14:57,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 01:14:57,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 01:14:57,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 01:14:57,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 01:14:57,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 01:14:57,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 01:14:57,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 01:14:57,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 01:14:57,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 01:14:57,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 01:14:57,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 01:14:57,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 01:14:57,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 01:14:57,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 01:14:57,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 01:14:57,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 01:14:57,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 01:14:57,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 01:14:57,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 01:14:57,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 01:14:57,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 01:14:57,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 01:14:57,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 01:14:57,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 01:14:57,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 01:14:57,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 01:14:57,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 01:14:57,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 01:14:57,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 01:14:57,162 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 01:14:57,188 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 01:14:57,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 01:14:57,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 01:14:57,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 01:14:57,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 01:14:57,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 01:14:57,190 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 01:14:57,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 01:14:57,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 01:14:57,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 01:14:57,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 01:14:57,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 01:14:57,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 01:14:57,191 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 01:14:57,191 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 01:14:57,191 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 01:14:57,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 01:14:57,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 01:14:57,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 01:14:57,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 01:14:57,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 01:14:57,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:14:57,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 01:14:57,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 01:14:57,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 01:14:57,192 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 01:14:57,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 01:14:57,193 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 01:14:57,193 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 01:14:57,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 01:14:57,193 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 01:14:57,193 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 01:14:57,194 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 01:14:57,194 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 01:14:57,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 01:14:57,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 01:14:57,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 01:14:57,435 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 01:14:57,436 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 01:14:57,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label43+token_ring.14.cil.c [2022-01-11 01:14:57,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bce8e76/7102c53ccdbd4b95831248b0b48d9ca9/FLAG52d36c28b [2022-01-11 01:14:58,328 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 01:14:58,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.14.cil.c [2022-01-11 01:14:58,380 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bce8e76/7102c53ccdbd4b95831248b0b48d9ca9/FLAG52d36c28b [2022-01-11 01:14:58,560 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bce8e76/7102c53ccdbd4b95831248b0b48d9ca9 [2022-01-11 01:14:58,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 01:14:58,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 01:14:58,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 01:14:58,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 01:14:58,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 01:14:58,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:14:58" (1/1) ... [2022-01-11 01:14:58,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb916d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:14:58, skipping insertion in model container [2022-01-11 01:14:58,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:14:58" (1/1) ... [2022-01-11 01:14:58,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 01:14:58,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 01:14:59,890 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_label43+token_ring.14.cil.c[381679,381692] [2022-01-11 01:14:59,906 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_label43+token_ring.14.cil.c[383339,383352] [2022-01-11 01:15:00,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:15:00,136 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 01:15:00,723 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_label43+token_ring.14.cil.c[381679,381692] [2022-01-11 01:15:00,729 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_label43+token_ring.14.cil.c[383339,383352] [2022-01-11 01:15:00,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:15:00,809 INFO L208 MainTranslator]: Completed translation [2022-01-11 01:15:00,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:00 WrapperNode [2022-01-11 01:15:00,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 01:15:00,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 01:15:00,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 01:15:00,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 01:15:00,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:00" (1/1) ... [2022-01-11 01:15:00,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:00" (1/1) ... [2022-01-11 01:15:01,357 INFO L137 Inliner]: procedures = 69, calls = 78, calls flagged for inlining = 73, calls inlined = 280, statements flattened = 16479 [2022-01-11 01:15:01,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 01:15:01,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 01:15:01,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 01:15:01,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 01:15:01,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:00" (1/1) ... [2022-01-11 01:15:01,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:00" (1/1) ... [2022-01-11 01:15:01,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:00" (1/1) ... [2022-01-11 01:15:01,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:00" (1/1) ... [2022-01-11 01:15:01,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:00" (1/1) ... [2022-01-11 01:15:01,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:00" (1/1) ... [2022-01-11 01:15:01,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:00" (1/1) ... [2022-01-11 01:15:01,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 01:15:01,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 01:15:01,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 01:15:01,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 01:15:01,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:00" (1/1) ... [2022-01-11 01:15:01,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:15:01,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:15:01,790 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 01:15:01,795 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 01:15:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 01:15:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 01:15:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 01:15:01,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 01:15:01,934 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 01:15:01,935 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 01:15:09,553 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 01:15:09,584 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 01:15:09,584 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-01-11 01:15:09,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:15:09 BoogieIcfgContainer [2022-01-11 01:15:09,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 01:15:09,591 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 01:15:09,591 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 01:15:09,592 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 01:15:09,594 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:15:09" (1/1) ... [2022-01-11 01:15:11,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:15:11 BasicIcfg [2022-01-11 01:15:11,179 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 01:15:11,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 01:15:11,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 01:15:11,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 01:15:11,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:14:58" (1/4) ... [2022-01-11 01:15:11,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b317a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:15:11, skipping insertion in model container [2022-01-11 01:15:11,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:00" (2/4) ... [2022-01-11 01:15:11,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b317a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:15:11, skipping insertion in model container [2022-01-11 01:15:11,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:15:09" (3/4) ... [2022-01-11 01:15:11,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b317a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:15:11, skipping insertion in model container [2022-01-11 01:15:11,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:15:11" (4/4) ... [2022-01-11 01:15:11,185 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.14.cil.cTransformedIcfg [2022-01-11 01:15:11,189 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 01:15:11,189 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 01:15:11,255 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 01:15:11,260 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 01:15:11,260 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 01:15:11,317 INFO L276 IsEmpty]: Start isEmpty. Operand has 3981 states, 3977 states have (on average 1.704048277596178) internal successors, (6777), 3980 states have internal predecessors, (6777), 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 01:15:11,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:11,338 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:11,339 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 01:15:11,340 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:11,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:11,343 INFO L85 PathProgramCache]: Analyzing trace with hash 660541864, now seen corresponding path program 1 times [2022-01-11 01:15:11,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:11,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919560334] [2022-01-11 01:15:11,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:11,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:11,701 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 01:15:11,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:11,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919560334] [2022-01-11 01:15:11,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919560334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:11,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:11,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:11,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286740838] [2022-01-11 01:15:11,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:11,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:11,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:11,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:11,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:11,740 INFO L87 Difference]: Start difference. First operand has 3981 states, 3977 states have (on average 1.704048277596178) internal successors, (6777), 3980 states have internal predecessors, (6777), 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 01:15:11,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:11,994 INFO L93 Difference]: Finished difference Result 9481 states and 15809 transitions. [2022-01-11 01:15:11,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:11,996 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 01:15:11,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:12,025 INFO L225 Difference]: With dead ends: 9481 [2022-01-11 01:15:12,026 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 01:15:12,038 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 01:15:12,044 INFO L933 BasicCegarLoop]: 6674 mSDtfsCounter, 6523 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6523 SdHoareTripleChecker+Valid, 9060 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:12,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6523 Valid, 9060 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:15:12,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 01:15:12,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5445. [2022-01-11 01:15:12,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6284454244762956) internal successors, (8862), 5444 states have internal predecessors, (8862), 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 01:15:12,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8862 transitions. [2022-01-11 01:15:12,236 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8862 transitions. Word has length 165 [2022-01-11 01:15:12,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:12,236 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8862 transitions. [2022-01-11 01:15:12,236 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 01:15:12,238 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8862 transitions. [2022-01-11 01:15:12,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:12,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:12,244 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 01:15:12,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 01:15:12,245 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:12,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:12,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1936707896, now seen corresponding path program 1 times [2022-01-11 01:15:12,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:12,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464105621] [2022-01-11 01:15:12,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:12,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:12,363 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 01:15:12,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:12,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464105621] [2022-01-11 01:15:12,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464105621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:12,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:12,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:12,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004573556] [2022-01-11 01:15:12,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:12,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:12,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:12,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:12,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:12,366 INFO L87 Difference]: Start difference. First operand 5445 states and 8862 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 01:15:12,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:12,474 INFO L93 Difference]: Finished difference Result 8749 states and 13732 transitions. [2022-01-11 01:15:12,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:12,475 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 01:15:12,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:12,492 INFO L225 Difference]: With dead ends: 8749 [2022-01-11 01:15:12,494 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:12,503 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 01:15:12,504 INFO L933 BasicCegarLoop]: 6601 mSDtfsCounter, 6586 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6586 SdHoareTripleChecker+Valid, 6601 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 01:15:12,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6586 Valid, 6601 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:12,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:12,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:12,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6269753766997428) internal successors, (8854), 5444 states have internal predecessors, (8854), 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 01:15:12,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8854 transitions. [2022-01-11 01:15:12,794 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8854 transitions. Word has length 165 [2022-01-11 01:15:12,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:12,796 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8854 transitions. [2022-01-11 01:15:12,796 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 01:15:12,797 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8854 transitions. [2022-01-11 01:15:12,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:12,801 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:12,801 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 01:15:12,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 01:15:12,806 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:12,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:12,806 INFO L85 PathProgramCache]: Analyzing trace with hash 473361832, now seen corresponding path program 1 times [2022-01-11 01:15:12,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:12,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814244023] [2022-01-11 01:15:12,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:12,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:12,882 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 01:15:12,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:12,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814244023] [2022-01-11 01:15:12,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814244023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:12,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:12,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:12,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73638089] [2022-01-11 01:15:12,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:12,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:12,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:12,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:12,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:12,886 INFO L87 Difference]: Start difference. First operand 5445 states and 8854 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 01:15:12,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:12,985 INFO L93 Difference]: Finished difference Result 8748 states and 13715 transitions. [2022-01-11 01:15:12,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:12,986 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 01:15:12,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:13,002 INFO L225 Difference]: With dead ends: 8748 [2022-01-11 01:15:13,002 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:13,011 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 01:15:13,014 INFO L933 BasicCegarLoop]: 6596 mSDtfsCounter, 6580 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6580 SdHoareTripleChecker+Valid, 6596 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 01:15:13,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6580 Valid, 6596 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:13,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:13,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:13,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.62550532892319) internal successors, (8846), 5444 states have internal predecessors, (8846), 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 01:15:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8846 transitions. [2022-01-11 01:15:13,146 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8846 transitions. Word has length 165 [2022-01-11 01:15:13,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:13,147 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8846 transitions. [2022-01-11 01:15:13,147 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 01:15:13,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8846 transitions. [2022-01-11 01:15:13,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:13,149 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:13,149 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 01:15:13,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 01:15:13,150 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:13,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:13,151 INFO L85 PathProgramCache]: Analyzing trace with hash -280177976, now seen corresponding path program 1 times [2022-01-11 01:15:13,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:13,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214891088] [2022-01-11 01:15:13,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:13,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:13,209 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 01:15:13,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:13,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214891088] [2022-01-11 01:15:13,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214891088] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:13,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:13,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:13,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064111766] [2022-01-11 01:15:13,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:13,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:13,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:13,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:13,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:13,211 INFO L87 Difference]: Start difference. First operand 5445 states and 8846 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 01:15:13,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:13,317 INFO L93 Difference]: Finished difference Result 8746 states and 13696 transitions. [2022-01-11 01:15:13,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:13,318 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 01:15:13,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:13,335 INFO L225 Difference]: With dead ends: 8746 [2022-01-11 01:15:13,335 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:13,343 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 01:15:13,348 INFO L933 BasicCegarLoop]: 6591 mSDtfsCounter, 6573 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6573 SdHoareTripleChecker+Valid, 6591 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 01:15:13,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6573 Valid, 6591 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:13,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:13,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:13,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6240352811466372) internal successors, (8838), 5444 states have internal predecessors, (8838), 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 01:15:13,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8838 transitions. [2022-01-11 01:15:13,462 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8838 transitions. Word has length 165 [2022-01-11 01:15:13,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:13,463 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8838 transitions. [2022-01-11 01:15:13,463 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 01:15:13,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8838 transitions. [2022-01-11 01:15:13,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:13,464 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:13,465 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 01:15:13,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 01:15:13,465 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:13,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:13,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1926856680, now seen corresponding path program 1 times [2022-01-11 01:15:13,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:13,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521562770] [2022-01-11 01:15:13,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:13,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:13,536 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 01:15:13,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:13,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521562770] [2022-01-11 01:15:13,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521562770] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:13,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:13,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:13,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102538921] [2022-01-11 01:15:13,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:13,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:13,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:13,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:13,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:13,539 INFO L87 Difference]: Start difference. First operand 5445 states and 8838 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 01:15:13,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:13,726 INFO L93 Difference]: Finished difference Result 8745 states and 13679 transitions. [2022-01-11 01:15:13,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:13,727 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 01:15:13,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:13,751 INFO L225 Difference]: With dead ends: 8745 [2022-01-11 01:15:13,751 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:13,756 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 01:15:13,757 INFO L933 BasicCegarLoop]: 6586 mSDtfsCounter, 6567 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6567 SdHoareTripleChecker+Valid, 6586 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 01:15:13,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6567 Valid, 6586 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:13,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:13,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:13,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6225652333700846) internal successors, (8830), 5444 states have internal predecessors, (8830), 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 01:15:13,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8830 transitions. [2022-01-11 01:15:13,873 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8830 transitions. Word has length 165 [2022-01-11 01:15:13,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:13,876 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8830 transitions. [2022-01-11 01:15:13,877 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 01:15:13,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8830 transitions. [2022-01-11 01:15:13,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:13,878 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:13,879 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 01:15:13,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 01:15:13,880 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:13,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:13,881 INFO L85 PathProgramCache]: Analyzing trace with hash -495800632, now seen corresponding path program 1 times [2022-01-11 01:15:13,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:13,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163138918] [2022-01-11 01:15:13,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:13,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:13,931 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 01:15:13,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:13,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163138918] [2022-01-11 01:15:13,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163138918] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:13,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:13,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:13,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134444293] [2022-01-11 01:15:13,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:13,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:13,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:13,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:13,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:13,932 INFO L87 Difference]: Start difference. First operand 5445 states and 8830 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 01:15:14,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:14,040 INFO L93 Difference]: Finished difference Result 8744 states and 13662 transitions. [2022-01-11 01:15:14,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:14,040 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 01:15:14,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:14,050 INFO L225 Difference]: With dead ends: 8744 [2022-01-11 01:15:14,051 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:14,056 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 01:15:14,057 INFO L933 BasicCegarLoop]: 6581 mSDtfsCounter, 6561 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6561 SdHoareTripleChecker+Valid, 6581 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 01:15:14,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6561 Valid, 6581 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:14,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:14,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:14,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6210951855935318) internal successors, (8822), 5444 states have internal predecessors, (8822), 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 01:15:14,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8822 transitions. [2022-01-11 01:15:14,177 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8822 transitions. Word has length 165 [2022-01-11 01:15:14,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:14,178 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8822 transitions. [2022-01-11 01:15:14,178 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 01:15:14,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8822 transitions. [2022-01-11 01:15:14,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:14,180 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:14,180 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 01:15:14,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 01:15:14,180 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:14,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:14,180 INFO L85 PathProgramCache]: Analyzing trace with hash -712498200, now seen corresponding path program 1 times [2022-01-11 01:15:14,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:14,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905512304] [2022-01-11 01:15:14,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:14,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:14,222 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 01:15:14,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:14,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905512304] [2022-01-11 01:15:14,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905512304] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:14,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:14,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:14,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898891570] [2022-01-11 01:15:14,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:14,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:14,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:14,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:14,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:14,224 INFO L87 Difference]: Start difference. First operand 5445 states and 8822 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 01:15:14,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:14,342 INFO L93 Difference]: Finished difference Result 8743 states and 13645 transitions. [2022-01-11 01:15:14,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:14,342 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 01:15:14,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:14,351 INFO L225 Difference]: With dead ends: 8743 [2022-01-11 01:15:14,351 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:14,357 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 01:15:14,358 INFO L933 BasicCegarLoop]: 6576 mSDtfsCounter, 6555 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6555 SdHoareTripleChecker+Valid, 6576 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 01:15:14,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6555 Valid, 6576 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:14,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:14,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:14,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.619625137816979) internal successors, (8814), 5444 states have internal predecessors, (8814), 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 01:15:14,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8814 transitions. [2022-01-11 01:15:14,485 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8814 transitions. Word has length 165 [2022-01-11 01:15:14,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:14,485 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8814 transitions. [2022-01-11 01:15:14,485 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 01:15:14,486 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8814 transitions. [2022-01-11 01:15:14,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:14,487 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:14,487 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 01:15:14,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 01:15:14,487 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:14,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:14,488 INFO L85 PathProgramCache]: Analyzing trace with hash -580941112, now seen corresponding path program 1 times [2022-01-11 01:15:14,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:14,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817398189] [2022-01-11 01:15:14,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:14,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:14,525 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 01:15:14,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:14,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817398189] [2022-01-11 01:15:14,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817398189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:14,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:14,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:14,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646486150] [2022-01-11 01:15:14,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:14,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:14,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:14,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:14,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:14,526 INFO L87 Difference]: Start difference. First operand 5445 states and 8814 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 01:15:14,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:14,690 INFO L93 Difference]: Finished difference Result 8742 states and 13628 transitions. [2022-01-11 01:15:14,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:14,691 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 01:15:14,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:14,702 INFO L225 Difference]: With dead ends: 8742 [2022-01-11 01:15:14,703 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:14,708 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 01:15:14,709 INFO L933 BasicCegarLoop]: 6571 mSDtfsCounter, 6549 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6549 SdHoareTripleChecker+Valid, 6571 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 01:15:14,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6549 Valid, 6571 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:14,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:14,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:14,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6181550900404262) internal successors, (8806), 5444 states have internal predecessors, (8806), 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 01:15:14,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8806 transitions. [2022-01-11 01:15:14,878 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8806 transitions. Word has length 165 [2022-01-11 01:15:14,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:14,878 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8806 transitions. [2022-01-11 01:15:14,878 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 01:15:14,878 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8806 transitions. [2022-01-11 01:15:14,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:14,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:14,880 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 01:15:14,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 01:15:14,880 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:14,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:14,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1685075992, now seen corresponding path program 1 times [2022-01-11 01:15:14,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:14,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680826555] [2022-01-11 01:15:14,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:14,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:14,919 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 01:15:14,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:14,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680826555] [2022-01-11 01:15:14,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680826555] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:14,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:14,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:14,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731322076] [2022-01-11 01:15:14,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:14,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:14,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:14,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:14,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:14,921 INFO L87 Difference]: Start difference. First operand 5445 states and 8806 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 01:15:15,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:15,095 INFO L93 Difference]: Finished difference Result 8741 states and 13611 transitions. [2022-01-11 01:15:15,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:15,096 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 01:15:15,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:15,106 INFO L225 Difference]: With dead ends: 8741 [2022-01-11 01:15:15,106 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:15,111 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 01:15:15,113 INFO L933 BasicCegarLoop]: 6566 mSDtfsCounter, 6543 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6543 SdHoareTripleChecker+Valid, 6566 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 01:15:15,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6543 Valid, 6566 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:15,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:15,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:15,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6166850422638737) internal successors, (8798), 5444 states have internal predecessors, (8798), 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 01:15:15,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8798 transitions. [2022-01-11 01:15:15,233 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8798 transitions. Word has length 165 [2022-01-11 01:15:15,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:15,233 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8798 transitions. [2022-01-11 01:15:15,233 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 01:15:15,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8798 transitions. [2022-01-11 01:15:15,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:15,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:15,237 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 01:15:15,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 01:15:15,237 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:15,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:15,238 INFO L85 PathProgramCache]: Analyzing trace with hash 634611400, now seen corresponding path program 1 times [2022-01-11 01:15:15,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:15,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722203769] [2022-01-11 01:15:15,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:15,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:15,279 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 01:15:15,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:15,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722203769] [2022-01-11 01:15:15,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722203769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:15,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:15,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:15,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585507631] [2022-01-11 01:15:15,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:15,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:15,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:15,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:15,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:15,281 INFO L87 Difference]: Start difference. First operand 5445 states and 8798 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 01:15:15,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:15,419 INFO L93 Difference]: Finished difference Result 8739 states and 13592 transitions. [2022-01-11 01:15:15,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:15,420 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 01:15:15,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:15,429 INFO L225 Difference]: With dead ends: 8739 [2022-01-11 01:15:15,429 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:15,433 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 01:15:15,434 INFO L933 BasicCegarLoop]: 6561 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, 6561 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 01:15:15,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6536 Valid, 6561 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:15,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:15,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:15,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6152149944873209) internal successors, (8790), 5444 states have internal predecessors, (8790), 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 01:15:15,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8790 transitions. [2022-01-11 01:15:15,554 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8790 transitions. Word has length 165 [2022-01-11 01:15:15,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:15,555 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8790 transitions. [2022-01-11 01:15:15,555 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 01:15:15,555 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8790 transitions. [2022-01-11 01:15:15,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:15,556 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:15,556 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 01:15:15,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 01:15:15,557 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:15,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:15,557 INFO L85 PathProgramCache]: Analyzing trace with hash -802079320, now seen corresponding path program 1 times [2022-01-11 01:15:15,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:15,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2428931] [2022-01-11 01:15:15,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:15,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:15,605 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 01:15:15,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:15,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2428931] [2022-01-11 01:15:15,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2428931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:15,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:15,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:15,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650376816] [2022-01-11 01:15:15,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:15,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:15,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:15,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:15,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:15,607 INFO L87 Difference]: Start difference. First operand 5445 states and 8790 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 01:15:15,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:15,747 INFO L93 Difference]: Finished difference Result 8738 states and 13575 transitions. [2022-01-11 01:15:15,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:15,747 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 01:15:15,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:15,756 INFO L225 Difference]: With dead ends: 8738 [2022-01-11 01:15:15,756 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:15,761 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 01:15:15,763 INFO L933 BasicCegarLoop]: 6556 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, 6556 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 01:15:15,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6530 Valid, 6556 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:15,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:15,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:15,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.613744946710768) internal successors, (8782), 5444 states have internal predecessors, (8782), 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 01:15:15,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8782 transitions. [2022-01-11 01:15:15,874 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8782 transitions. Word has length 165 [2022-01-11 01:15:15,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:15,875 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8782 transitions. [2022-01-11 01:15:15,875 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 01:15:15,875 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8782 transitions. [2022-01-11 01:15:15,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:15,876 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:15,876 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 01:15:15,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 01:15:15,877 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:15,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:15,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1229785800, now seen corresponding path program 1 times [2022-01-11 01:15:15,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:15,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901182586] [2022-01-11 01:15:15,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:15,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:15,912 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 01:15:15,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:15,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901182586] [2022-01-11 01:15:15,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901182586] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:15,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:15,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:15,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884957739] [2022-01-11 01:15:15,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:15,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:15,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:15,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:15,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:15,914 INFO L87 Difference]: Start difference. First operand 5445 states and 8782 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 01:15:16,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:16,104 INFO L93 Difference]: Finished difference Result 8737 states and 13558 transitions. [2022-01-11 01:15:16,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:16,105 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 01:15:16,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:16,113 INFO L225 Difference]: With dead ends: 8737 [2022-01-11 01:15:16,113 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:16,117 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 01:15:16,118 INFO L933 BasicCegarLoop]: 6521 mSDtfsCounter, 6377 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6377 SdHoareTripleChecker+Valid, 6649 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 01:15:16,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6377 Valid, 6649 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:16,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:16,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:16,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6071297317162807) internal successors, (8746), 5444 states have internal predecessors, (8746), 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 01:15:16,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8746 transitions. [2022-01-11 01:15:16,238 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8746 transitions. Word has length 165 [2022-01-11 01:15:16,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:16,238 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8746 transitions. [2022-01-11 01:15:16,238 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 01:15:16,238 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8746 transitions. [2022-01-11 01:15:16,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:16,239 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:16,239 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 01:15:16,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 01:15:16,240 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:16,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:16,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1326779353, now seen corresponding path program 1 times [2022-01-11 01:15:16,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:16,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793304190] [2022-01-11 01:15:16,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:16,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:16,278 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 01:15:16,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:16,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793304190] [2022-01-11 01:15:16,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793304190] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:16,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:16,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:16,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411920697] [2022-01-11 01:15:16,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:16,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:16,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:16,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:16,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:16,280 INFO L87 Difference]: Start difference. First operand 5445 states and 8746 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 01:15:16,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:16,431 INFO L93 Difference]: Finished difference Result 8735 states and 13483 transitions. [2022-01-11 01:15:16,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:16,431 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 01:15:16,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:16,441 INFO L225 Difference]: With dead ends: 8735 [2022-01-11 01:15:16,441 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:16,448 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 01:15:16,449 INFO L933 BasicCegarLoop]: 6501 mSDtfsCounter, 6356 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6356 SdHoareTripleChecker+Valid, 6628 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 01:15:16,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6356 Valid, 6628 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:16,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:16,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:16,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.6005145167217936) internal successors, (8710), 5444 states have internal predecessors, (8710), 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 01:15:16,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8710 transitions. [2022-01-11 01:15:16,641 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8710 transitions. Word has length 165 [2022-01-11 01:15:16,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:16,641 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8710 transitions. [2022-01-11 01:15:16,641 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 01:15:16,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8710 transitions. [2022-01-11 01:15:16,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:16,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:16,642 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 01:15:16,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 01:15:16,643 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:16,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:16,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1114924026, now seen corresponding path program 1 times [2022-01-11 01:15:16,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:16,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763480945] [2022-01-11 01:15:16,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:16,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:16,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:16,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:16,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763480945] [2022-01-11 01:15:16,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763480945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:16,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:16,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:16,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831167120] [2022-01-11 01:15:16,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:16,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:16,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:16,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:16,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:16,685 INFO L87 Difference]: Start difference. First operand 5445 states and 8710 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 01:15:16,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:16,831 INFO L93 Difference]: Finished difference Result 8734 states and 13410 transitions. [2022-01-11 01:15:16,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:16,831 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 01:15:16,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:16,839 INFO L225 Difference]: With dead ends: 8734 [2022-01-11 01:15:16,839 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:16,843 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 01:15:16,843 INFO L933 BasicCegarLoop]: 6481 mSDtfsCounter, 6336 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6336 SdHoareTripleChecker+Valid, 6607 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 01:15:16,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6336 Valid, 6607 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:16,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:17,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:17,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5938993017273062) internal successors, (8674), 5444 states have internal predecessors, (8674), 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 01:15:17,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8674 transitions. [2022-01-11 01:15:17,029 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8674 transitions. Word has length 165 [2022-01-11 01:15:17,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:17,029 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8674 transitions. [2022-01-11 01:15:17,029 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 01:15:17,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8674 transitions. [2022-01-11 01:15:17,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:17,031 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:17,031 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 01:15:17,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 01:15:17,031 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:17,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:17,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1610627739, now seen corresponding path program 1 times [2022-01-11 01:15:17,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:17,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431099200] [2022-01-11 01:15:17,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:17,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:17,068 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 01:15:17,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:17,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431099200] [2022-01-11 01:15:17,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431099200] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:17,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:17,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:17,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359510466] [2022-01-11 01:15:17,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:17,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:17,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:17,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:17,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:17,070 INFO L87 Difference]: Start difference. First operand 5445 states and 8674 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 01:15:17,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:17,250 INFO L93 Difference]: Finished difference Result 8733 states and 13337 transitions. [2022-01-11 01:15:17,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:17,251 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 01:15:17,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:17,260 INFO L225 Difference]: With dead ends: 8733 [2022-01-11 01:15:17,260 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:17,265 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 01:15:17,266 INFO L933 BasicCegarLoop]: 6461 mSDtfsCounter, 6316 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6316 SdHoareTripleChecker+Valid, 6586 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 01:15:17,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6316 Valid, 6586 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:17,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:17,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:17,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5872840867328188) internal successors, (8638), 5444 states have internal predecessors, (8638), 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 01:15:17,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8638 transitions. [2022-01-11 01:15:17,416 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8638 transitions. Word has length 165 [2022-01-11 01:15:17,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:17,416 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8638 transitions. [2022-01-11 01:15:17,416 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 01:15:17,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8638 transitions. [2022-01-11 01:15:17,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:17,417 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:17,418 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 01:15:17,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 01:15:17,418 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:17,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:17,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1200024516, now seen corresponding path program 1 times [2022-01-11 01:15:17,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:17,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049431360] [2022-01-11 01:15:17,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:17,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:17,455 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 01:15:17,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:17,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049431360] [2022-01-11 01:15:17,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049431360] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:17,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:17,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:17,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813663069] [2022-01-11 01:15:17,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:17,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:17,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:17,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:17,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:17,457 INFO L87 Difference]: Start difference. First operand 5445 states and 8638 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 01:15:17,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:17,659 INFO L93 Difference]: Finished difference Result 8732 states and 13264 transitions. [2022-01-11 01:15:17,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:17,660 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 01:15:17,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:17,670 INFO L225 Difference]: With dead ends: 8732 [2022-01-11 01:15:17,670 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:17,676 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 01:15:17,676 INFO L933 BasicCegarLoop]: 6441 mSDtfsCounter, 6296 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6296 SdHoareTripleChecker+Valid, 6565 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 01:15:17,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6296 Valid, 6565 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:17,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:17,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:17,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5806688717383315) internal successors, (8602), 5444 states have internal predecessors, (8602), 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 01:15:17,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8602 transitions. [2022-01-11 01:15:17,803 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8602 transitions. Word has length 165 [2022-01-11 01:15:17,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:17,803 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8602 transitions. [2022-01-11 01:15:17,804 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 01:15:17,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8602 transitions. [2022-01-11 01:15:17,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:17,805 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:17,805 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 01:15:17,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 01:15:17,805 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:17,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:17,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2142564124, now seen corresponding path program 1 times [2022-01-11 01:15:17,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:17,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945682099] [2022-01-11 01:15:17,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:17,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:17,837 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 01:15:17,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:17,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945682099] [2022-01-11 01:15:17,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945682099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:17,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:17,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:17,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691019307] [2022-01-11 01:15:17,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:17,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:17,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:17,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:17,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:17,839 INFO L87 Difference]: Start difference. First operand 5445 states and 8602 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 01:15:18,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:18,007 INFO L93 Difference]: Finished difference Result 8731 states and 13191 transitions. [2022-01-11 01:15:18,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:18,007 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 01:15:18,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:18,016 INFO L225 Difference]: With dead ends: 8731 [2022-01-11 01:15:18,016 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:18,021 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 01:15:18,022 INFO L933 BasicCegarLoop]: 6421 mSDtfsCounter, 6276 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6276 SdHoareTripleChecker+Valid, 6544 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 01:15:18,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6276 Valid, 6544 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:18,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:18,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:18,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5740536567438441) internal successors, (8566), 5444 states have internal predecessors, (8566), 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 01:15:18,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8566 transitions. [2022-01-11 01:15:18,189 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8566 transitions. Word has length 165 [2022-01-11 01:15:18,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:18,189 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8566 transitions. [2022-01-11 01:15:18,189 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 01:15:18,189 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8566 transitions. [2022-01-11 01:15:18,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:18,190 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:18,190 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 01:15:18,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 01:15:18,191 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:18,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:18,192 INFO L85 PathProgramCache]: Analyzing trace with hash 2126280131, now seen corresponding path program 1 times [2022-01-11 01:15:18,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:18,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455382372] [2022-01-11 01:15:18,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:18,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:18,256 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 01:15:18,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:18,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455382372] [2022-01-11 01:15:18,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455382372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:18,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:18,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:18,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088033825] [2022-01-11 01:15:18,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:18,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:18,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:18,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:18,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:18,258 INFO L87 Difference]: Start difference. First operand 5445 states and 8566 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 01:15:18,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:18,454 INFO L93 Difference]: Finished difference Result 8730 states and 13118 transitions. [2022-01-11 01:15:18,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:18,454 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 01:15:18,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:18,463 INFO L225 Difference]: With dead ends: 8730 [2022-01-11 01:15:18,463 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:18,468 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 01:15:18,468 INFO L933 BasicCegarLoop]: 6401 mSDtfsCounter, 6256 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6256 SdHoareTripleChecker+Valid, 6523 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:18,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6256 Valid, 6523 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:15:18,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:18,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:18,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5674384417493568) internal successors, (8530), 5444 states have internal predecessors, (8530), 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 01:15:18,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8530 transitions. [2022-01-11 01:15:18,596 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8530 transitions. Word has length 165 [2022-01-11 01:15:18,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:18,597 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8530 transitions. [2022-01-11 01:15:18,597 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 01:15:18,597 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8530 transitions. [2022-01-11 01:15:18,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:18,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:18,598 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 01:15:18,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 01:15:18,598 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:18,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:18,599 INFO L85 PathProgramCache]: Analyzing trace with hash 58997794, now seen corresponding path program 1 times [2022-01-11 01:15:18,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:18,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046674685] [2022-01-11 01:15:18,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:18,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:18,631 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 01:15:18,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:18,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046674685] [2022-01-11 01:15:18,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046674685] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:18,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:18,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:18,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651567639] [2022-01-11 01:15:18,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:18,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:18,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:18,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:18,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:18,633 INFO L87 Difference]: Start difference. First operand 5445 states and 8530 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 01:15:18,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:18,790 INFO L93 Difference]: Finished difference Result 8729 states and 13045 transitions. [2022-01-11 01:15:18,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:18,790 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 01:15:18,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:18,800 INFO L225 Difference]: With dead ends: 8729 [2022-01-11 01:15:18,800 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:18,807 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 01:15:18,807 INFO L933 BasicCegarLoop]: 6381 mSDtfsCounter, 6236 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6236 SdHoareTripleChecker+Valid, 6502 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 01:15:18,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6236 Valid, 6502 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:18,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:18,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:18,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5608232267548696) internal successors, (8494), 5444 states have internal predecessors, (8494), 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 01:15:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8494 transitions. [2022-01-11 01:15:18,946 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8494 transitions. Word has length 165 [2022-01-11 01:15:18,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:18,947 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8494 transitions. [2022-01-11 01:15:18,947 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 01:15:18,947 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8494 transitions. [2022-01-11 01:15:18,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:18,948 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:18,948 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 01:15:18,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 01:15:18,948 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:18,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:18,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1425825919, now seen corresponding path program 1 times [2022-01-11 01:15:18,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:18,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140944014] [2022-01-11 01:15:18,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:18,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:18,996 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 01:15:18,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:18,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140944014] [2022-01-11 01:15:18,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140944014] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:18,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:18,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:18,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844968549] [2022-01-11 01:15:18,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:18,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:18,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:18,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:18,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:18,998 INFO L87 Difference]: Start difference. First operand 5445 states and 8494 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 01:15:19,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:19,201 INFO L93 Difference]: Finished difference Result 8728 states and 12972 transitions. [2022-01-11 01:15:19,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:19,202 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 01:15:19,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:19,210 INFO L225 Difference]: With dead ends: 8728 [2022-01-11 01:15:19,210 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:19,214 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 01:15:19,215 INFO L933 BasicCegarLoop]: 6361 mSDtfsCounter, 6216 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6216 SdHoareTripleChecker+Valid, 6481 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 01:15:19,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6216 Valid, 6481 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:19,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:19,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:19,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5542080117603823) internal successors, (8458), 5444 states have internal predecessors, (8458), 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 01:15:19,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8458 transitions. [2022-01-11 01:15:19,402 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8458 transitions. Word has length 165 [2022-01-11 01:15:19,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:19,402 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8458 transitions. [2022-01-11 01:15:19,402 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 01:15:19,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8458 transitions. [2022-01-11 01:15:19,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:19,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:19,403 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 01:15:19,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 01:15:19,403 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:19,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:19,404 INFO L85 PathProgramCache]: Analyzing trace with hash -546778016, now seen corresponding path program 1 times [2022-01-11 01:15:19,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:19,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322185827] [2022-01-11 01:15:19,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:19,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:19,445 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 01:15:19,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:19,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322185827] [2022-01-11 01:15:19,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322185827] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:19,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:19,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:19,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781956637] [2022-01-11 01:15:19,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:19,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:19,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:19,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:19,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:19,447 INFO L87 Difference]: Start difference. First operand 5445 states and 8458 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 01:15:19,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:19,609 INFO L93 Difference]: Finished difference Result 8727 states and 12899 transitions. [2022-01-11 01:15:19,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:19,609 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 01:15:19,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:19,618 INFO L225 Difference]: With dead ends: 8727 [2022-01-11 01:15:19,618 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:19,623 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 01:15:19,623 INFO L933 BasicCegarLoop]: 6341 mSDtfsCounter, 6196 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6196 SdHoareTripleChecker+Valid, 6460 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 01:15:19,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6196 Valid, 6460 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:19,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:19,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:19,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.547592796765895) internal successors, (8422), 5444 states have internal predecessors, (8422), 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 01:15:19,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8422 transitions. [2022-01-11 01:15:19,765 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8422 transitions. Word has length 165 [2022-01-11 01:15:19,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:19,766 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8422 transitions. [2022-01-11 01:15:19,766 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 01:15:19,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8422 transitions. [2022-01-11 01:15:19,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:19,767 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:19,767 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 01:15:19,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 01:15:19,767 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:19,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:19,768 INFO L85 PathProgramCache]: Analyzing trace with hash -398854593, now seen corresponding path program 1 times [2022-01-11 01:15:19,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:19,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771450661] [2022-01-11 01:15:19,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:19,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:19,802 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 01:15:19,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:19,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771450661] [2022-01-11 01:15:19,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771450661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:19,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:19,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:19,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954956462] [2022-01-11 01:15:19,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:19,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:19,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:19,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:19,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:19,804 INFO L87 Difference]: Start difference. First operand 5445 states and 8422 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 01:15:19,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:19,986 INFO L93 Difference]: Finished difference Result 8726 states and 12826 transitions. [2022-01-11 01:15:19,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:19,987 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 01:15:19,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:19,996 INFO L225 Difference]: With dead ends: 8726 [2022-01-11 01:15:19,996 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:19,999 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 01:15:20,000 INFO L933 BasicCegarLoop]: 6321 mSDtfsCounter, 6176 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6176 SdHoareTripleChecker+Valid, 6439 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 01:15:20,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6176 Valid, 6439 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:20,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:20,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:20,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5409775817714075) internal successors, (8386), 5444 states have internal predecessors, (8386), 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 01:15:20,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8386 transitions. [2022-01-11 01:15:20,145 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8386 transitions. Word has length 165 [2022-01-11 01:15:20,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:20,145 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8386 transitions. [2022-01-11 01:15:20,145 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 01:15:20,145 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8386 transitions. [2022-01-11 01:15:20,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:20,146 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:20,146 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 01:15:20,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 01:15:20,147 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:20,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:20,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1689541022, now seen corresponding path program 1 times [2022-01-11 01:15:20,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:20,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660333668] [2022-01-11 01:15:20,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:20,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:20,180 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 01:15:20,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:20,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660333668] [2022-01-11 01:15:20,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660333668] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:20,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:20,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:20,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667642695] [2022-01-11 01:15:20,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:20,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:20,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:20,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:20,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:20,182 INFO L87 Difference]: Start difference. First operand 5445 states and 8386 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 01:15:20,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:20,347 INFO L93 Difference]: Finished difference Result 8725 states and 12753 transitions. [2022-01-11 01:15:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:20,348 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 01:15:20,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:20,356 INFO L225 Difference]: With dead ends: 8725 [2022-01-11 01:15:20,356 INFO L226 Difference]: Without dead ends: 5445 [2022-01-11 01:15:20,360 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 01:15:20,360 INFO L933 BasicCegarLoop]: 6301 mSDtfsCounter, 6156 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6156 SdHoareTripleChecker+Valid, 6418 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 01:15:20,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6156 Valid, 6418 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:20,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-01-11 01:15:20,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5445. [2022-01-11 01:15:20,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5445 states, 5442 states have (on average 1.5343623667769202) internal successors, (8350), 5444 states have internal predecessors, (8350), 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 01:15:20,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5445 states to 5445 states and 8350 transitions. [2022-01-11 01:15:20,505 INFO L78 Accepts]: Start accepts. Automaton has 5445 states and 8350 transitions. Word has length 165 [2022-01-11 01:15:20,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:20,505 INFO L470 AbstractCegarLoop]: Abstraction has 5445 states and 8350 transitions. [2022-01-11 01:15:20,505 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 01:15:20,505 INFO L276 IsEmpty]: Start isEmpty. Operand 5445 states and 8350 transitions. [2022-01-11 01:15:20,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:20,506 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:20,506 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 01:15:20,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 01:15:20,506 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:20,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:20,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1120208387, now seen corresponding path program 1 times [2022-01-11 01:15:20,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:20,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118347462] [2022-01-11 01:15:20,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:20,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:20,538 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 01:15:20,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:20,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118347462] [2022-01-11 01:15:20,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118347462] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:20,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:20,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:20,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905070817] [2022-01-11 01:15:20,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:20,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:20,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:20,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:20,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:20,539 INFO L87 Difference]: Start difference. First operand 5445 states and 8350 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 01:15:20,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:20,826 INFO L93 Difference]: Finished difference Result 11659 states and 16549 transitions. [2022-01-11 01:15:20,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:20,826 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 01:15:20,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:20,840 INFO L225 Difference]: With dead ends: 11659 [2022-01-11 01:15:20,840 INFO L226 Difference]: Without dead ends: 8388 [2022-01-11 01:15:20,845 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 01:15:20,846 INFO L933 BasicCegarLoop]: 6302 mSDtfsCounter, 6098 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6098 SdHoareTripleChecker+Valid, 8421 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 01:15:20,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6098 Valid, 8421 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:20,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8388 states. [2022-01-11 01:15:21,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8388 to 8380. [2022-01-11 01:15:21,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8380 states, 8377 states have (on average 1.4555330070430943) internal successors, (12193), 8379 states have internal predecessors, (12193), 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 01:15:21,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8380 states to 8380 states and 12193 transitions. [2022-01-11 01:15:21,117 INFO L78 Accepts]: Start accepts. Automaton has 8380 states and 12193 transitions. Word has length 165 [2022-01-11 01:15:21,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:21,117 INFO L470 AbstractCegarLoop]: Abstraction has 8380 states and 12193 transitions. [2022-01-11 01:15:21,118 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 01:15:21,118 INFO L276 IsEmpty]: Start isEmpty. Operand 8380 states and 12193 transitions. [2022-01-11 01:15:21,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:21,119 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:21,119 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 01:15:21,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 01:15:21,119 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:21,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:21,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1932763204, now seen corresponding path program 1 times [2022-01-11 01:15:21,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:21,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666931350] [2022-01-11 01:15:21,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:21,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:21,167 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 01:15:21,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:21,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666931350] [2022-01-11 01:15:21,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666931350] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:21,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:21,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:15:21,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867040716] [2022-01-11 01:15:21,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:21,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:15:21,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:21,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:15:21,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:15:21,169 INFO L87 Difference]: Start difference. First operand 8380 states and 12193 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 01:15:21,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:21,924 INFO L93 Difference]: Finished difference Result 20440 states and 28049 transitions. [2022-01-11 01:15:21,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:15:21,924 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 01:15:21,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:21,949 INFO L225 Difference]: With dead ends: 20440 [2022-01-11 01:15:21,949 INFO L226 Difference]: Without dead ends: 14238 [2022-01-11 01:15:21,962 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 01:15:21,962 INFO L933 BasicCegarLoop]: 6476 mSDtfsCounter, 8127 mSDsluCounter, 22135 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8127 SdHoareTripleChecker+Valid, 28611 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:21,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8127 Valid, 28611 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 01:15:21,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14238 states. [2022-01-11 01:15:22,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14238 to 8467. [2022-01-11 01:15:22,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8467 states, 8464 states have (on average 1.4475425330812854) internal successors, (12252), 8466 states have internal predecessors, (12252), 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 01:15:22,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8467 states to 8467 states and 12252 transitions. [2022-01-11 01:15:22,339 INFO L78 Accepts]: Start accepts. Automaton has 8467 states and 12252 transitions. Word has length 165 [2022-01-11 01:15:22,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:22,340 INFO L470 AbstractCegarLoop]: Abstraction has 8467 states and 12252 transitions. [2022-01-11 01:15:22,340 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 01:15:22,340 INFO L276 IsEmpty]: Start isEmpty. Operand 8467 states and 12252 transitions. [2022-01-11 01:15:22,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:22,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:22,341 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 01:15:22,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 01:15:22,341 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:22,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:22,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1842911805, now seen corresponding path program 1 times [2022-01-11 01:15:22,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:22,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184379317] [2022-01-11 01:15:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:22,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:22,385 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 01:15:22,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:22,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184379317] [2022-01-11 01:15:22,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184379317] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:22,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:22,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:15:22,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064920761] [2022-01-11 01:15:22,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:22,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:15:22,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:22,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:15:22,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:15:22,386 INFO L87 Difference]: Start difference. First operand 8467 states and 12252 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 01:15:23,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:23,059 INFO L93 Difference]: Finished difference Result 18623 states and 25646 transitions. [2022-01-11 01:15:23,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:15:23,059 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 01:15:23,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:23,078 INFO L225 Difference]: With dead ends: 18623 [2022-01-11 01:15:23,078 INFO L226 Difference]: Without dead ends: 12369 [2022-01-11 01:15:23,087 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 01:15:23,087 INFO L933 BasicCegarLoop]: 6369 mSDtfsCounter, 5789 mSDsluCounter, 16154 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5789 SdHoareTripleChecker+Valid, 22523 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 01:15:23,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5789 Valid, 22523 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:15:23,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12369 states. [2022-01-11 01:15:23,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12369 to 8479. [2022-01-11 01:15:23,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8479 states, 8476 states have (on average 1.440655969797074) internal successors, (12211), 8478 states have internal predecessors, (12211), 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 01:15:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8479 states to 8479 states and 12211 transitions. [2022-01-11 01:15:23,487 INFO L78 Accepts]: Start accepts. Automaton has 8479 states and 12211 transitions. Word has length 165 [2022-01-11 01:15:23,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:23,488 INFO L470 AbstractCegarLoop]: Abstraction has 8479 states and 12211 transitions. [2022-01-11 01:15:23,488 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 01:15:23,488 INFO L276 IsEmpty]: Start isEmpty. Operand 8479 states and 12211 transitions. [2022-01-11 01:15:23,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:23,489 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:23,489 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 01:15:23,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 01:15:23,489 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:23,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:23,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1963031678, now seen corresponding path program 1 times [2022-01-11 01:15:23,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:23,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911679674] [2022-01-11 01:15:23,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:23,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:23,535 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 01:15:23,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:23,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911679674] [2022-01-11 01:15:23,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911679674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:23,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:23,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:15:23,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47560978] [2022-01-11 01:15:23,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:23,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:15:23,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:23,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:15:23,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:15:23,537 INFO L87 Difference]: Start difference. First operand 8479 states and 12211 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 01:15:24,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:24,337 INFO L93 Difference]: Finished difference Result 18974 states and 25936 transitions. [2022-01-11 01:15:24,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:15:24,337 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 01:15:24,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:24,355 INFO L225 Difference]: With dead ends: 18974 [2022-01-11 01:15:24,355 INFO L226 Difference]: Without dead ends: 12715 [2022-01-11 01:15:24,361 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 01:15:24,362 INFO L933 BasicCegarLoop]: 6336 mSDtfsCounter, 5598 mSDsluCounter, 16483 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5598 SdHoareTripleChecker+Valid, 22819 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 01:15:24,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5598 Valid, 22819 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:15:24,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12715 states. [2022-01-11 01:15:24,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12715 to 8491. [2022-01-11 01:15:24,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8491 states, 8488 states have (on average 1.4337888784165882) internal successors, (12170), 8490 states have internal predecessors, (12170), 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 01:15:24,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8491 states to 8491 states and 12170 transitions. [2022-01-11 01:15:24,871 INFO L78 Accepts]: Start accepts. Automaton has 8491 states and 12170 transitions. Word has length 165 [2022-01-11 01:15:24,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:24,871 INFO L470 AbstractCegarLoop]: Abstraction has 8491 states and 12170 transitions. [2022-01-11 01:15:24,872 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 01:15:24,872 INFO L276 IsEmpty]: Start isEmpty. Operand 8491 states and 12170 transitions. [2022-01-11 01:15:24,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:24,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:24,873 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 01:15:24,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 01:15:24,873 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:24,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:24,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1007510399, now seen corresponding path program 1 times [2022-01-11 01:15:24,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:24,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417027147] [2022-01-11 01:15:24,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:24,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:24,920 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 01:15:24,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:24,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417027147] [2022-01-11 01:15:24,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417027147] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:24,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:24,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:24,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816471588] [2022-01-11 01:15:24,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:24,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:24,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:24,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:24,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:24,922 INFO L87 Difference]: Start difference. First operand 8491 states and 12170 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 01:15:25,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:25,326 INFO L93 Difference]: Finished difference Result 14839 states and 20346 transitions. [2022-01-11 01:15:25,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:25,327 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 01:15:25,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:25,337 INFO L225 Difference]: With dead ends: 14839 [2022-01-11 01:15:25,337 INFO L226 Difference]: Without dead ends: 8491 [2022-01-11 01:15:25,344 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 01:15:25,345 INFO L933 BasicCegarLoop]: 6277 mSDtfsCounter, 6155 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6155 SdHoareTripleChecker+Valid, 6277 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 01:15:25,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6155 Valid, 6277 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:25,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8491 states. [2022-01-11 01:15:25,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8491 to 8491. [2022-01-11 01:15:25,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8491 states, 8488 states have (on average 1.4321394910461829) internal successors, (12156), 8490 states have internal predecessors, (12156), 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 01:15:25,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8491 states to 8491 states and 12156 transitions. [2022-01-11 01:15:25,760 INFO L78 Accepts]: Start accepts. Automaton has 8491 states and 12156 transitions. Word has length 165 [2022-01-11 01:15:25,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:25,760 INFO L470 AbstractCegarLoop]: Abstraction has 8491 states and 12156 transitions. [2022-01-11 01:15:25,760 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 01:15:25,760 INFO L276 IsEmpty]: Start isEmpty. Operand 8491 states and 12156 transitions. [2022-01-11 01:15:25,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:25,761 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:25,761 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 01:15:25,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 01:15:25,762 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:25,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:25,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1654652898, now seen corresponding path program 1 times [2022-01-11 01:15:25,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:25,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124234865] [2022-01-11 01:15:25,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:25,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:25,811 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 01:15:25,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:25,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124234865] [2022-01-11 01:15:25,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124234865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:25,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:25,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:25,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033117292] [2022-01-11 01:15:25,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:25,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:25,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:25,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:25,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:25,812 INFO L87 Difference]: Start difference. First operand 8491 states and 12156 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 01:15:26,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:26,269 INFO L93 Difference]: Finished difference Result 14832 states and 20311 transitions. [2022-01-11 01:15:26,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:26,270 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 01:15:26,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:26,280 INFO L225 Difference]: With dead ends: 14832 [2022-01-11 01:15:26,281 INFO L226 Difference]: Without dead ends: 8491 [2022-01-11 01:15:26,289 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 01:15:26,289 INFO L933 BasicCegarLoop]: 6272 mSDtfsCounter, 6143 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6143 SdHoareTripleChecker+Valid, 6272 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 01:15:26,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6143 Valid, 6272 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:26,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8491 states. [2022-01-11 01:15:26,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8491 to 8491. [2022-01-11 01:15:26,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8491 states, 8488 states have (on average 1.4304901036757776) internal successors, (12142), 8490 states have internal predecessors, (12142), 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 01:15:26,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8491 states to 8491 states and 12142 transitions. [2022-01-11 01:15:26,705 INFO L78 Accepts]: Start accepts. Automaton has 8491 states and 12142 transitions. Word has length 165 [2022-01-11 01:15:26,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:26,705 INFO L470 AbstractCegarLoop]: Abstraction has 8491 states and 12142 transitions. [2022-01-11 01:15:26,705 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 01:15:26,705 INFO L276 IsEmpty]: Start isEmpty. Operand 8491 states and 12142 transitions. [2022-01-11 01:15:26,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 01:15:26,709 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:26,709 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 01:15:26,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 01:15:26,709 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:26,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:26,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1303852961, now seen corresponding path program 1 times [2022-01-11 01:15:26,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:26,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633447632] [2022-01-11 01:15:26,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:26,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:26,760 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 01:15:26,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:26,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633447632] [2022-01-11 01:15:26,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633447632] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:26,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:26,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:26,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019437765] [2022-01-11 01:15:26,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:26,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:26,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:26,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:26,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:26,761 INFO L87 Difference]: Start difference. First operand 8491 states and 12142 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 01:15:27,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:27,667 INFO L93 Difference]: Finished difference Result 20938 states and 28143 transitions. [2022-01-11 01:15:27,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:27,667 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 01:15:27,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:27,687 INFO L225 Difference]: With dead ends: 20938 [2022-01-11 01:15:27,687 INFO L226 Difference]: Without dead ends: 14614 [2022-01-11 01:15:27,693 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 01:15:27,694 INFO L933 BasicCegarLoop]: 6258 mSDtfsCounter, 6068 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6068 SdHoareTripleChecker+Valid, 8343 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:27,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6068 Valid, 8343 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:27,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14614 states. [2022-01-11 01:15:28,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14614 to 14250. [2022-01-11 01:15:28,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14250 states, 14247 states have (on average 1.3690601530146698) internal successors, (19505), 14249 states have internal predecessors, (19505), 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 01:15:28,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14250 states to 14250 states and 19505 transitions. [2022-01-11 01:15:28,502 INFO L78 Accepts]: Start accepts. Automaton has 14250 states and 19505 transitions. Word has length 165 [2022-01-11 01:15:28,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:28,503 INFO L470 AbstractCegarLoop]: Abstraction has 14250 states and 19505 transitions. [2022-01-11 01:15:28,503 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 01:15:28,503 INFO L276 IsEmpty]: Start isEmpty. Operand 14250 states and 19505 transitions. [2022-01-11 01:15:28,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-11 01:15:28,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:28,510 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 01:15:28,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 01:15:28,510 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:28,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:28,511 INFO L85 PathProgramCache]: Analyzing trace with hash -714949087, now seen corresponding path program 1 times [2022-01-11 01:15:28,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:28,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466641835] [2022-01-11 01:15:28,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:28,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:28,590 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 01:15:28,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:28,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466641835] [2022-01-11 01:15:28,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466641835] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:28,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:28,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:15:28,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363413406] [2022-01-11 01:15:28,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:28,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:15:28,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:28,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:15:28,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:15:28,591 INFO L87 Difference]: Start difference. First operand 14250 states and 19505 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 01:15:30,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:30,155 INFO L93 Difference]: Finished difference Result 36310 states and 47956 transitions. [2022-01-11 01:15:30,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:15:30,156 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 01:15:30,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:30,192 INFO L225 Difference]: With dead ends: 36310 [2022-01-11 01:15:30,192 INFO L226 Difference]: Without dead ends: 24300 [2022-01-11 01:15:30,208 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 01:15:30,209 INFO L933 BasicCegarLoop]: 6255 mSDtfsCounter, 5055 mSDsluCounter, 17534 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5055 SdHoareTripleChecker+Valid, 23789 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 01:15:30,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5055 Valid, 23789 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:15:30,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24300 states. [2022-01-11 01:15:31,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24300 to 14274. [2022-01-11 01:15:31,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14274 states, 14271 states have (on average 1.3613622030691612) internal successors, (19428), 14273 states have internal predecessors, (19428), 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 01:15:31,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14274 states to 14274 states and 19428 transitions. [2022-01-11 01:15:31,180 INFO L78 Accepts]: Start accepts. Automaton has 14274 states and 19428 transitions. Word has length 268 [2022-01-11 01:15:31,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:31,180 INFO L470 AbstractCegarLoop]: Abstraction has 14274 states and 19428 transitions. [2022-01-11 01:15:31,180 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 01:15:31,180 INFO L276 IsEmpty]: Start isEmpty. Operand 14274 states and 19428 transitions. [2022-01-11 01:15:31,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-11 01:15:31,186 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:31,187 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 01:15:31,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-11 01:15:31,188 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:31,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:31,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1796500127, now seen corresponding path program 1 times [2022-01-11 01:15:31,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:31,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680974941] [2022-01-11 01:15:31,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:31,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:31,256 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 01:15:31,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:31,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680974941] [2022-01-11 01:15:31,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680974941] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:31,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:31,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:15:31,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136116803] [2022-01-11 01:15:31,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:31,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:31,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:31,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:31,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:31,258 INFO L87 Difference]: Start difference. First operand 14274 states and 19428 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 01:15:32,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:32,917 INFO L93 Difference]: Finished difference Result 38059 states and 49512 transitions. [2022-01-11 01:15:32,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:32,918 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 01:15:32,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:32,957 INFO L225 Difference]: With dead ends: 38059 [2022-01-11 01:15:32,958 INFO L226 Difference]: Without dead ends: 26067 [2022-01-11 01:15:32,976 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 01:15:32,977 INFO L933 BasicCegarLoop]: 7707 mSDtfsCounter, 5910 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5910 SdHoareTripleChecker+Valid, 9975 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:32,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5910 Valid, 9975 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:32,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26067 states. [2022-01-11 01:15:34,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26067 to 25739. [2022-01-11 01:15:34,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25739 states, 25736 states have (on average 1.3133354056574449) internal successors, (33800), 25738 states have internal predecessors, (33800), 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 01:15:34,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25739 states to 25739 states and 33800 transitions. [2022-01-11 01:15:34,717 INFO L78 Accepts]: Start accepts. Automaton has 25739 states and 33800 transitions. Word has length 268 [2022-01-11 01:15:34,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:34,717 INFO L470 AbstractCegarLoop]: Abstraction has 25739 states and 33800 transitions. [2022-01-11 01:15:34,718 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 01:15:34,718 INFO L276 IsEmpty]: Start isEmpty. Operand 25739 states and 33800 transitions. [2022-01-11 01:15:34,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-11 01:15:34,728 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:34,728 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 01:15:34,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-11 01:15:34,728 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:34,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:34,728 INFO L85 PathProgramCache]: Analyzing trace with hash -2013830338, now seen corresponding path program 1 times [2022-01-11 01:15:34,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:34,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103874577] [2022-01-11 01:15:34,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:34,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:34,760 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 01:15:34,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:34,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103874577] [2022-01-11 01:15:34,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103874577] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:34,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:34,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:15:34,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836013847] [2022-01-11 01:15:34,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:34,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:34,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:34,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:34,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:34,762 INFO L87 Difference]: Start difference. First operand 25739 states and 33800 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 01:15:36,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:36,091 INFO L93 Difference]: Finished difference Result 43358 states and 56068 transitions. [2022-01-11 01:15:36,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:36,092 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 01:15:36,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:36,117 INFO L225 Difference]: With dead ends: 43358 [2022-01-11 01:15:36,117 INFO L226 Difference]: Without dead ends: 19901 [2022-01-11 01:15:36,140 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 01:15:36,146 INFO L933 BasicCegarLoop]: 6258 mSDtfsCounter, 2296 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 10216 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 01:15:36,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2296 Valid, 10216 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:36,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19901 states. [2022-01-11 01:15:37,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19901 to 19901. [2022-01-11 01:15:37,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19901 states, 19898 states have (on average 1.3278218916474018) internal successors, (26421), 19900 states have internal predecessors, (26421), 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 01:15:37,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19901 states to 19901 states and 26421 transitions. [2022-01-11 01:15:37,581 INFO L78 Accepts]: Start accepts. Automaton has 19901 states and 26421 transitions. Word has length 268 [2022-01-11 01:15:37,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:37,581 INFO L470 AbstractCegarLoop]: Abstraction has 19901 states and 26421 transitions. [2022-01-11 01:15:37,582 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 01:15:37,582 INFO L276 IsEmpty]: Start isEmpty. Operand 19901 states and 26421 transitions. [2022-01-11 01:15:37,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-01-11 01:15:37,589 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:37,589 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 01:15:37,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-11 01:15:37,589 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:37,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:37,590 INFO L85 PathProgramCache]: Analyzing trace with hash 2090897317, now seen corresponding path program 1 times [2022-01-11 01:15:37,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:37,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739206737] [2022-01-11 01:15:37,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:37,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:37,642 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 01:15:37,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:37,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739206737] [2022-01-11 01:15:37,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739206737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:37,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:37,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:15:37,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880630118] [2022-01-11 01:15:37,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:37,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:37,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:37,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:37,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:37,644 INFO L87 Difference]: Start difference. First operand 19901 states and 26421 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 01:15:40,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:40,178 INFO L93 Difference]: Finished difference Result 54859 states and 70487 transitions. [2022-01-11 01:15:40,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:40,178 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 01:15:40,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:40,227 INFO L225 Difference]: With dead ends: 54859 [2022-01-11 01:15:40,227 INFO L226 Difference]: Without dead ends: 37240 [2022-01-11 01:15:40,243 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 01:15:40,243 INFO L933 BasicCegarLoop]: 6708 mSDtfsCounter, 6076 mSDsluCounter, 2265 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6076 SdHoareTripleChecker+Valid, 8973 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 01:15:40,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6076 Valid, 8973 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:40,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37240 states. [2022-01-11 01:15:42,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37240 to 36348. [2022-01-11 01:15:42,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36348 states, 36345 states have (on average 1.2956115008942082) internal successors, (47089), 36347 states have internal predecessors, (47089), 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 01:15:42,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36348 states to 36348 states and 47089 transitions. [2022-01-11 01:15:42,998 INFO L78 Accepts]: Start accepts. Automaton has 36348 states and 47089 transitions. Word has length 269 [2022-01-11 01:15:42,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:42,998 INFO L470 AbstractCegarLoop]: Abstraction has 36348 states and 47089 transitions. [2022-01-11 01:15:42,998 INFO L471 AbstractCegarLoop]: INTERPOLANT 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) [2022-01-11 01:15:42,998 INFO L276 IsEmpty]: Start isEmpty. Operand 36348 states and 47089 transitions. [2022-01-11 01:15:43,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-01-11 01:15:43,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:43,012 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 01:15:43,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-11 01:15:43,012 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:43,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:43,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1829707654, now seen corresponding path program 1 times [2022-01-11 01:15:43,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:43,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528710920] [2022-01-11 01:15:43,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:43,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:43,153 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 01:15:43,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:43,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528710920] [2022-01-11 01:15:43,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528710920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:43,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:43,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:15:43,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718322254] [2022-01-11 01:15:43,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:43,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:43,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:43,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:43,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:43,155 INFO L87 Difference]: Start difference. First operand 36348 states and 47089 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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 01:15:45,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:45,890 INFO L93 Difference]: Finished difference Result 70358 states and 89955 transitions. [2022-01-11 01:15:45,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:45,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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 01:15:45,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:45,938 INFO L225 Difference]: With dead ends: 70358 [2022-01-11 01:15:45,938 INFO L226 Difference]: Without dead ends: 36194 [2022-01-11 01:15:45,955 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 01:15:45,955 INFO L933 BasicCegarLoop]: 6257 mSDtfsCounter, 2294 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2294 SdHoareTripleChecker+Valid, 10215 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 01:15:45,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2294 Valid, 10215 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:45,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36194 states. [2022-01-11 01:15:48,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36194 to 36194. [2022-01-11 01:15:48,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36194 states, 36191 states have (on average 1.2959575585090215) internal successors, (46902), 36193 states have internal predecessors, (46902), 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 01:15:48,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36194 states to 36194 states and 46902 transitions. [2022-01-11 01:15:48,918 INFO L78 Accepts]: Start accepts. Automaton has 36194 states and 46902 transitions. Word has length 269 [2022-01-11 01:15:48,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:48,918 INFO L470 AbstractCegarLoop]: Abstraction has 36194 states and 46902 transitions. [2022-01-11 01:15:48,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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 01:15:48,918 INFO L276 IsEmpty]: Start isEmpty. Operand 36194 states and 46902 transitions. [2022-01-11 01:15:48,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-01-11 01:15:48,934 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:48,935 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, 1] [2022-01-11 01:15:48,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-11 01:15:48,935 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:48,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:48,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1974657550, now seen corresponding path program 1 times [2022-01-11 01:15:48,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:48,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226700243] [2022-01-11 01:15:48,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:48,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:49,069 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 01:15:49,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:49,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226700243] [2022-01-11 01:15:49,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226700243] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:49,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:49,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:15:49,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425257543] [2022-01-11 01:15:49,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:49,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:49,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:49,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:49,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:49,072 INFO L87 Difference]: Start difference. First operand 36194 states and 46902 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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 01:15:54,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:54,622 INFO L93 Difference]: Finished difference Result 103267 states and 131322 transitions. [2022-01-11 01:15:54,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:54,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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 270 [2022-01-11 01:15:54,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:54,739 INFO L225 Difference]: With dead ends: 103267 [2022-01-11 01:15:54,739 INFO L226 Difference]: Without dead ends: 69355 [2022-01-11 01:15:54,787 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 01:15:54,788 INFO L933 BasicCegarLoop]: 6843 mSDtfsCounter, 6076 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6076 SdHoareTripleChecker+Valid, 9106 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:54,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6076 Valid, 9106 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:54,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69355 states.