/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.11.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 01:17:40,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 01:17:40,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 01:17:40,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 01:17:40,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 01:17:40,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 01:17:40,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 01:17:40,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 01:17:40,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 01:17:40,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 01:17:40,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 01:17:40,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 01:17:40,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 01:17:40,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 01:17:40,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 01:17:40,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 01:17:40,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 01:17:40,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 01:17:40,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 01:17:40,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 01:17:40,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 01:17:40,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 01:17:40,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 01:17:40,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 01:17:40,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 01:17:40,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 01:17:40,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 01:17:40,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 01:17:40,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 01:17:40,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 01:17:40,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 01:17:40,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 01:17:40,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 01:17:40,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 01:17:40,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 01:17:40,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 01:17:40,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 01:17:40,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 01:17:40,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 01:17:40,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 01:17:40,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 01:17:40,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 01:17:40,503 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 01:17:40,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 01:17:40,504 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 01:17:40,504 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 01:17:40,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 01:17:40,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 01:17:40,506 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 01:17:40,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 01:17:40,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 01:17:40,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 01:17:40,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 01:17:40,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 01:17:40,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 01:17:40,507 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 01:17:40,507 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 01:17:40,507 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 01:17:40,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 01:17:40,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 01:17:40,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 01:17:40,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 01:17:40,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 01:17:40,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:17:40,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 01:17:40,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 01:17:40,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 01:17:40,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 01:17:40,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 01:17:40,510 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 01:17:40,510 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 01:17:40,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 01:17:40,510 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 01:17:40,510 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 01:17:40,511 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 01:17:40,511 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 01:17:40,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 01:17:40,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 01:17:40,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 01:17:40,723 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 01:17:40,725 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 01:17:40,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.11.cil-2.c [2022-01-11 01:17:40,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/728f4a04d/427b9d6c670e4ab6a528e0a7c95340e5/FLAG0685f689d [2022-01-11 01:17:41,696 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 01:17:41,696 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.11.cil-2.c [2022-01-11 01:17:41,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/728f4a04d/427b9d6c670e4ab6a528e0a7c95340e5/FLAG0685f689d [2022-01-11 01:17:41,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/728f4a04d/427b9d6c670e4ab6a528e0a7c95340e5 [2022-01-11 01:17:41,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 01:17:41,819 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 01:17:41,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 01:17:41,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 01:17:41,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 01:17:41,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:17:41" (1/1) ... [2022-01-11 01:17:41,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6acb6316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:41, skipping insertion in model container [2022-01-11 01:17:41,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:17:41" (1/1) ... [2022-01-11 01:17:41,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 01:17:42,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 01:17:43,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.11.cil-2.c[380323,380336] [2022-01-11 01:17:43,536 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.11.cil-2.c[383339,383352] [2022-01-11 01:17:43,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:17:43,856 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 01:17:44,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.11.cil-2.c[380323,380336] [2022-01-11 01:17:44,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.11.cil-2.c[383339,383352] [2022-01-11 01:17:44,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:17:44,749 INFO L208 MainTranslator]: Completed translation [2022-01-11 01:17:44,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:44 WrapperNode [2022-01-11 01:17:44,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 01:17:44,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 01:17:44,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 01:17:44,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 01:17:44,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:44" (1/1) ... [2022-01-11 01:17:44,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:44" (1/1) ... [2022-01-11 01:17:45,253 INFO L137 Inliner]: procedures = 67, calls = 74, calls flagged for inlining = 69, calls inlined = 248, statements flattened = 15980 [2022-01-11 01:17:45,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 01:17:45,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 01:17:45,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 01:17:45,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 01:17:45,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:44" (1/1) ... [2022-01-11 01:17:45,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:44" (1/1) ... [2022-01-11 01:17:45,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:44" (1/1) ... [2022-01-11 01:17:45,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:44" (1/1) ... [2022-01-11 01:17:45,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:44" (1/1) ... [2022-01-11 01:17:45,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:44" (1/1) ... [2022-01-11 01:17:45,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:44" (1/1) ... [2022-01-11 01:17:45,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 01:17:45,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 01:17:45,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 01:17:45,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 01:17:45,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:44" (1/1) ... [2022-01-11 01:17:45,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:17:45,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:17:45,872 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 01:17:45,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 01:17:45,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 01:17:45,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 01:17:45,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 01:17:45,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 01:17:46,087 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 01:17:46,088 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 01:17:55,290 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 01:17:55,314 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 01:17:55,314 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2022-01-11 01:17:55,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:17:55 BoogieIcfgContainer [2022-01-11 01:17:55,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 01:17:55,320 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 01:17:55,320 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 01:17:55,322 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 01:17:55,324 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:17:55" (1/1) ... [2022-01-11 01:17:56,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:17:56 BasicIcfg [2022-01-11 01:17:56,970 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 01:17:56,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 01:17:56,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 01:17:56,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 01:17:56,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:17:41" (1/4) ... [2022-01-11 01:17:56,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5113a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:17:56, skipping insertion in model container [2022-01-11 01:17:56,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:17:44" (2/4) ... [2022-01-11 01:17:56,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5113a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:17:56, skipping insertion in model container [2022-01-11 01:17:56,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:17:55" (3/4) ... [2022-01-11 01:17:56,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5113a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:17:56, skipping insertion in model container [2022-01-11 01:17:56,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:17:56" (4/4) ... [2022-01-11 01:17:56,978 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.11.cil-2.cTransformedIcfg [2022-01-11 01:17:56,983 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 01:17:56,983 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-11 01:17:57,045 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 01:17:57,051 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 01:17:57,053 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-11 01:17:57,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 3756 states, 3753 states have (on average 1.7172928324007461) internal successors, (6445), 3755 states have internal predecessors, (6445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:17:57,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:17:57,147 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:17:57,148 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] [2022-01-11 01:17:57,149 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:17:57,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:17:57,155 INFO L85 PathProgramCache]: Analyzing trace with hash 452533607, now seen corresponding path program 1 times [2022-01-11 01:17:57,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:17:57,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837925128] [2022-01-11 01:17:57,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:17:57,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:17:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:17:57,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:17:57,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:17:57,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837925128] [2022-01-11 01:17:57,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837925128] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:17:57,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:17:57,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:17:57,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216135054] [2022-01-11 01:17:57,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:17:57,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:17:57,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:17:57,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:17:57,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:17:57,604 INFO L87 Difference]: Start difference. First operand has 3756 states, 3753 states have (on average 1.7172928324007461) internal successors, (6445), 3755 states have internal predecessors, (6445), 0 states have call successors, (0), 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 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:17:57,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:17:57,969 INFO L93 Difference]: Finished difference Result 8828 states and 14847 transitions. [2022-01-11 01:17:57,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:17:57,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:17:57,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:17:58,010 INFO L225 Difference]: With dead ends: 8828 [2022-01-11 01:17:58,010 INFO L226 Difference]: Without dead ends: 5020 [2022-01-11 01:17:58,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:17:58,248 INFO L933 BasicCegarLoop]: 6346 mSDtfsCounter, 6206 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6206 SdHoareTripleChecker+Valid, 8424 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:17:58,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6206 Valid, 8424 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:17:58,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5020 states. [2022-01-11 01:17:58,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5020 to 5018. [2022-01-11 01:17:58,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6421451355661882) internal successors, (8237), 5017 states have internal predecessors, (8237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:17:58,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8237 transitions. [2022-01-11 01:17:58,446 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8237 transitions. Word has length 154 [2022-01-11 01:17:58,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:17:58,447 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8237 transitions. [2022-01-11 01:17:58,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:17:58,448 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8237 transitions. [2022-01-11 01:17:58,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:17:58,454 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:17:58,455 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] [2022-01-11 01:17:58,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 01:17:58,455 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:17:58,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:17:58,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1886278023, now seen corresponding path program 1 times [2022-01-11 01:17:58,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:17:58,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453567659] [2022-01-11 01:17:58,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:17:58,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:17:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:17:58,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:17:58,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:17:58,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453567659] [2022-01-11 01:17:58,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453567659] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:17:58,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:17:58,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:17:58,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306073131] [2022-01-11 01:17:58,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:17:58,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:17:58,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:17:58,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:17:58,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:17:58,593 INFO L87 Difference]: Start difference. First operand 5018 states and 8237 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:17:58,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:17:58,720 INFO L93 Difference]: Finished difference Result 7896 states and 12484 transitions. [2022-01-11 01:17:58,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:17:58,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:17:58,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:17:58,741 INFO L225 Difference]: With dead ends: 7896 [2022-01-11 01:17:58,742 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:17:58,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:17:58,752 INFO L933 BasicCegarLoop]: 6273 mSDtfsCounter, 6259 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6259 SdHoareTripleChecker+Valid, 6273 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:17:58,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6259 Valid, 6273 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:17:58,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:17:58,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:17:58,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6405502392344498) internal successors, (8229), 5017 states have internal predecessors, (8229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:17:58,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8229 transitions. [2022-01-11 01:17:58,915 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8229 transitions. Word has length 154 [2022-01-11 01:17:58,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:17:58,916 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8229 transitions. [2022-01-11 01:17:58,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:17:58,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8229 transitions. [2022-01-11 01:17:58,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:17:58,922 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:17:58,923 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] [2022-01-11 01:17:58,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 01:17:58,928 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:17:58,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:17:58,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2071075175, now seen corresponding path program 1 times [2022-01-11 01:17:58,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:17:58,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222989737] [2022-01-11 01:17:58,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:17:58,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:17:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:17:59,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:17:59,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:17:59,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222989737] [2022-01-11 01:17:59,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222989737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:17:59,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:17:59,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:17:59,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345091195] [2022-01-11 01:17:59,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:17:59,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:17:59,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:17:59,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:17:59,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:17:59,031 INFO L87 Difference]: Start difference. First operand 5018 states and 8229 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:17:59,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:17:59,161 INFO L93 Difference]: Finished difference Result 7894 states and 12465 transitions. [2022-01-11 01:17:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:17:59,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:17:59,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:17:59,183 INFO L225 Difference]: With dead ends: 7894 [2022-01-11 01:17:59,183 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:17:59,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:17:59,196 INFO L933 BasicCegarLoop]: 6268 mSDtfsCounter, 6252 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6252 SdHoareTripleChecker+Valid, 6268 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:17:59,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6252 Valid, 6268 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:17:59,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:17:59,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:17:59,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6389553429027113) internal successors, (8221), 5017 states have internal predecessors, (8221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:17:59,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8221 transitions. [2022-01-11 01:17:59,350 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8221 transitions. Word has length 154 [2022-01-11 01:17:59,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:17:59,351 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8221 transitions. [2022-01-11 01:17:59,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:17:59,352 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8221 transitions. [2022-01-11 01:17:59,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:17:59,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:17:59,354 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] [2022-01-11 01:17:59,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 01:17:59,354 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:17:59,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:17:59,355 INFO L85 PathProgramCache]: Analyzing trace with hash -91858617, now seen corresponding path program 1 times [2022-01-11 01:17:59,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:17:59,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826441540] [2022-01-11 01:17:59,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:17:59,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:17:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:17:59,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:17:59,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:17:59,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826441540] [2022-01-11 01:17:59,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826441540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:17:59,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:17:59,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:17:59,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749648976] [2022-01-11 01:17:59,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:17:59,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:17:59,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:17:59,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:17:59,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:17:59,433 INFO L87 Difference]: Start difference. First operand 5018 states and 8221 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:17:59,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:17:59,695 INFO L93 Difference]: Finished difference Result 7893 states and 12448 transitions. [2022-01-11 01:17:59,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:17:59,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:17:59,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:17:59,717 INFO L225 Difference]: With dead ends: 7893 [2022-01-11 01:17:59,718 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:17:59,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:17:59,724 INFO L933 BasicCegarLoop]: 6263 mSDtfsCounter, 6246 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6246 SdHoareTripleChecker+Valid, 6263 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:17:59,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6246 Valid, 6263 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:17:59,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:17:59,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:17:59,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6373604465709728) internal successors, (8213), 5017 states have internal predecessors, (8213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:17:59,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8213 transitions. [2022-01-11 01:17:59,881 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8213 transitions. Word has length 154 [2022-01-11 01:17:59,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:17:59,881 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8213 transitions. [2022-01-11 01:17:59,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:17:59,882 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8213 transitions. [2022-01-11 01:17:59,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:17:59,884 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:17:59,884 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] [2022-01-11 01:17:59,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 01:17:59,884 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:17:59,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:17:59,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1778031975, now seen corresponding path program 1 times [2022-01-11 01:17:59,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:17:59,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953703499] [2022-01-11 01:17:59,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:17:59,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:17:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:17:59,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:17:59,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:17:59,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953703499] [2022-01-11 01:17:59,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953703499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:17:59,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:17:59,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:17:59,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978401724] [2022-01-11 01:17:59,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:17:59,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:17:59,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:17:59,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:17:59,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:17:59,954 INFO L87 Difference]: Start difference. First operand 5018 states and 8213 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:00,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:00,104 INFO L93 Difference]: Finished difference Result 7892 states and 12431 transitions. [2022-01-11 01:18:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:00,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:00,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:00,138 INFO L225 Difference]: With dead ends: 7892 [2022-01-11 01:18:00,138 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:00,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:00,146 INFO L933 BasicCegarLoop]: 6258 mSDtfsCounter, 6240 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6240 SdHoareTripleChecker+Valid, 6258 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:00,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6240 Valid, 6258 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:00,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:00,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:00,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6357655502392345) internal successors, (8205), 5017 states have internal predecessors, (8205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:00,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8205 transitions. [2022-01-11 01:18:00,323 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8205 transitions. Word has length 154 [2022-01-11 01:18:00,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:00,327 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8205 transitions. [2022-01-11 01:18:00,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:00,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8205 transitions. [2022-01-11 01:18:00,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:00,330 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:00,331 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] [2022-01-11 01:18:00,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 01:18:00,331 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:00,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:00,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1763879609, now seen corresponding path program 1 times [2022-01-11 01:18:00,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:00,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844515926] [2022-01-11 01:18:00,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:00,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:00,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:00,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844515926] [2022-01-11 01:18:00,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844515926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:00,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:00,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:00,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092570340] [2022-01-11 01:18:00,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:00,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:00,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:00,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:00,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:00,408 INFO L87 Difference]: Start difference. First operand 5018 states and 8205 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:00,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:00,561 INFO L93 Difference]: Finished difference Result 7891 states and 12414 transitions. [2022-01-11 01:18:00,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:00,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:00,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:00,575 INFO L225 Difference]: With dead ends: 7891 [2022-01-11 01:18:00,575 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:00,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:00,586 INFO L933 BasicCegarLoop]: 6253 mSDtfsCounter, 6234 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6234 SdHoareTripleChecker+Valid, 6253 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:00,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6234 Valid, 6253 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:00,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:00,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:00,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.634170653907496) internal successors, (8197), 5017 states have internal predecessors, (8197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:00,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8197 transitions. [2022-01-11 01:18:00,753 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8197 transitions. Word has length 154 [2022-01-11 01:18:00,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:00,754 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8197 transitions. [2022-01-11 01:18:00,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:00,754 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8197 transitions. [2022-01-11 01:18:00,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:00,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:00,756 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] [2022-01-11 01:18:00,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 01:18:00,756 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:00,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:00,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1462492825, now seen corresponding path program 1 times [2022-01-11 01:18:00,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:00,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525659182] [2022-01-11 01:18:00,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:00,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:00,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:00,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:00,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525659182] [2022-01-11 01:18:00,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525659182] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:00,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:00,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:00,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355909521] [2022-01-11 01:18:00,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:00,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:00,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:00,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:00,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:00,830 INFO L87 Difference]: Start difference. First operand 5018 states and 8197 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:01,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:01,010 INFO L93 Difference]: Finished difference Result 7890 states and 12397 transitions. [2022-01-11 01:18:01,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:01,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:01,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:01,022 INFO L225 Difference]: With dead ends: 7890 [2022-01-11 01:18:01,023 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:01,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:01,033 INFO L933 BasicCegarLoop]: 6248 mSDtfsCounter, 6228 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6228 SdHoareTripleChecker+Valid, 6248 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:01,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6228 Valid, 6248 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:01,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:01,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:01,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6325757575757576) internal successors, (8189), 5017 states have internal predecessors, (8189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:01,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8189 transitions. [2022-01-11 01:18:01,214 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8189 transitions. Word has length 154 [2022-01-11 01:18:01,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:01,214 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8189 transitions. [2022-01-11 01:18:01,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:01,214 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8189 transitions. [2022-01-11 01:18:01,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:01,216 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:01,216 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] [2022-01-11 01:18:01,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 01:18:01,217 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:01,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:01,217 INFO L85 PathProgramCache]: Analyzing trace with hash 348344647, now seen corresponding path program 1 times [2022-01-11 01:18:01,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:01,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231974862] [2022-01-11 01:18:01,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:01,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:01,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:01,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:01,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231974862] [2022-01-11 01:18:01,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231974862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:01,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:01,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:01,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727045746] [2022-01-11 01:18:01,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:01,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:01,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:01,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:01,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:01,270 INFO L87 Difference]: Start difference. First operand 5018 states and 8189 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:01,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:01,411 INFO L93 Difference]: Finished difference Result 7889 states and 12380 transitions. [2022-01-11 01:18:01,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:01,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:01,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:01,426 INFO L225 Difference]: With dead ends: 7889 [2022-01-11 01:18:01,426 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:01,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:01,433 INFO L933 BasicCegarLoop]: 6243 mSDtfsCounter, 6222 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6222 SdHoareTripleChecker+Valid, 6243 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:01,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6222 Valid, 6243 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:01,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:01,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:01,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.630980861244019) internal successors, (8181), 5017 states have internal predecessors, (8181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:01,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8181 transitions. [2022-01-11 01:18:01,610 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8181 transitions. Word has length 154 [2022-01-11 01:18:01,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:01,611 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8181 transitions. [2022-01-11 01:18:01,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:01,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8181 transitions. [2022-01-11 01:18:01,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:01,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:01,613 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] [2022-01-11 01:18:01,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 01:18:01,613 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:01,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:01,614 INFO L85 PathProgramCache]: Analyzing trace with hash 406758759, now seen corresponding path program 1 times [2022-01-11 01:18:01,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:01,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199392862] [2022-01-11 01:18:01,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:01,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:01,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:01,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:01,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199392862] [2022-01-11 01:18:01,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199392862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:01,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:01,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:01,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984981625] [2022-01-11 01:18:01,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:01,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:01,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:01,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:01,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:01,669 INFO L87 Difference]: Start difference. First operand 5018 states and 8181 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:01,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:01,816 INFO L93 Difference]: Finished difference Result 7888 states and 12363 transitions. [2022-01-11 01:18:01,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:01,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:01,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:01,831 INFO L225 Difference]: With dead ends: 7888 [2022-01-11 01:18:01,831 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:01,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:01,841 INFO L933 BasicCegarLoop]: 6238 mSDtfsCounter, 6216 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6216 SdHoareTripleChecker+Valid, 6238 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:01,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6216 Valid, 6238 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:01,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:02,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:02,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6293859649122806) internal successors, (8173), 5017 states have internal predecessors, (8173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:02,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8173 transitions. [2022-01-11 01:18:02,105 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8173 transitions. Word has length 154 [2022-01-11 01:18:02,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:02,105 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8173 transitions. [2022-01-11 01:18:02,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:02,105 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8173 transitions. [2022-01-11 01:18:02,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:02,107 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:02,107 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] [2022-01-11 01:18:02,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 01:18:02,107 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:02,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:02,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1946661561, now seen corresponding path program 1 times [2022-01-11 01:18:02,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:02,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614269141] [2022-01-11 01:18:02,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:02,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:02,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:02,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:02,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614269141] [2022-01-11 01:18:02,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614269141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:02,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:02,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:02,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037942187] [2022-01-11 01:18:02,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:02,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:02,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:02,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:02,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:02,154 INFO L87 Difference]: Start difference. First operand 5018 states and 8173 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:02,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:02,301 INFO L93 Difference]: Finished difference Result 7887 states and 12346 transitions. [2022-01-11 01:18:02,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:02,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:02,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:02,314 INFO L225 Difference]: With dead ends: 7887 [2022-01-11 01:18:02,314 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:02,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:02,321 INFO L933 BasicCegarLoop]: 6233 mSDtfsCounter, 6210 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6210 SdHoareTripleChecker+Valid, 6233 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:02,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6210 Valid, 6233 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:02,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:02,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:02,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6277910685805423) internal successors, (8165), 5017 states have internal predecessors, (8165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:02,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8165 transitions. [2022-01-11 01:18:02,500 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8165 transitions. Word has length 154 [2022-01-11 01:18:02,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:02,500 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8165 transitions. [2022-01-11 01:18:02,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:02,501 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8165 transitions. [2022-01-11 01:18:02,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:02,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:02,502 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] [2022-01-11 01:18:02,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 01:18:02,503 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:02,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:02,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1468389017, now seen corresponding path program 1 times [2022-01-11 01:18:02,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:02,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885953995] [2022-01-11 01:18:02,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:02,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:02,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:02,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:02,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885953995] [2022-01-11 01:18:02,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885953995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:02,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:02,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:02,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910009363] [2022-01-11 01:18:02,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:02,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:02,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:02,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:02,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:02,552 INFO L87 Difference]: Start difference. First operand 5018 states and 8165 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:02,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:02,710 INFO L93 Difference]: Finished difference Result 7886 states and 12329 transitions. [2022-01-11 01:18:02,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:02,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:02,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:02,723 INFO L225 Difference]: With dead ends: 7886 [2022-01-11 01:18:02,723 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:02,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:02,731 INFO L933 BasicCegarLoop]: 6228 mSDtfsCounter, 6204 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6204 SdHoareTripleChecker+Valid, 6228 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:02,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6204 Valid, 6228 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:02,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:02,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:02,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6261961722488039) internal successors, (8157), 5017 states have internal predecessors, (8157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:02,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8157 transitions. [2022-01-11 01:18:02,925 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8157 transitions. Word has length 154 [2022-01-11 01:18:02,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:02,926 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8157 transitions. [2022-01-11 01:18:02,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:02,926 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8157 transitions. [2022-01-11 01:18:02,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:02,928 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:02,928 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] [2022-01-11 01:18:02,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 01:18:02,929 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:02,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:02,929 INFO L85 PathProgramCache]: Analyzing trace with hash 71059783, now seen corresponding path program 1 times [2022-01-11 01:18:02,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:02,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065951752] [2022-01-11 01:18:02,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:02,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:02,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:02,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:02,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065951752] [2022-01-11 01:18:02,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065951752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:02,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:02,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:02,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452666741] [2022-01-11 01:18:02,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:02,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:02,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:02,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:02,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:02,978 INFO L87 Difference]: Start difference. First operand 5018 states and 8157 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:03,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:03,220 INFO L93 Difference]: Finished difference Result 7885 states and 12312 transitions. [2022-01-11 01:18:03,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:03,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:03,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:03,232 INFO L225 Difference]: With dead ends: 7885 [2022-01-11 01:18:03,233 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:03,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:03,242 INFO L933 BasicCegarLoop]: 6195 mSDtfsCounter, 6062 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6062 SdHoareTripleChecker+Valid, 6313 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:03,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6062 Valid, 6313 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:03,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:03,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:03,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6194178628389155) internal successors, (8123), 5017 states have internal predecessors, (8123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:03,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8123 transitions. [2022-01-11 01:18:03,468 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8123 transitions. Word has length 154 [2022-01-11 01:18:03,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:03,468 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8123 transitions. [2022-01-11 01:18:03,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:03,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8123 transitions. [2022-01-11 01:18:03,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:03,470 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:03,471 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] [2022-01-11 01:18:03,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 01:18:03,471 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:03,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:03,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1448839450, now seen corresponding path program 1 times [2022-01-11 01:18:03,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:03,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461870384] [2022-01-11 01:18:03,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:03,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:03,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:03,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:03,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461870384] [2022-01-11 01:18:03,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461870384] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:03,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:03,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:03,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202972741] [2022-01-11 01:18:03,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:03,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:03,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:03,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:03,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:03,525 INFO L87 Difference]: Start difference. First operand 5018 states and 8123 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:03,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:03,715 INFO L93 Difference]: Finished difference Result 7884 states and 12243 transitions. [2022-01-11 01:18:03,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:03,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:03,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:03,728 INFO L225 Difference]: With dead ends: 7884 [2022-01-11 01:18:03,728 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:03,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:03,738 INFO L933 BasicCegarLoop]: 6176 mSDtfsCounter, 6043 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6043 SdHoareTripleChecker+Valid, 6293 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:03,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6043 Valid, 6293 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:03,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:03,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:03,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6126395534290272) internal successors, (8089), 5017 states have internal predecessors, (8089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:03,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8089 transitions. [2022-01-11 01:18:03,927 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8089 transitions. Word has length 154 [2022-01-11 01:18:03,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:03,928 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8089 transitions. [2022-01-11 01:18:03,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:03,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8089 transitions. [2022-01-11 01:18:03,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:03,930 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:03,930 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] [2022-01-11 01:18:03,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 01:18:03,930 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:03,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:03,931 INFO L85 PathProgramCache]: Analyzing trace with hash 461611909, now seen corresponding path program 1 times [2022-01-11 01:18:03,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:03,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501993019] [2022-01-11 01:18:03,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:03,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:03,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:03,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:03,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501993019] [2022-01-11 01:18:03,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501993019] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:03,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:03,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:03,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136675746] [2022-01-11 01:18:03,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:03,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:03,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:03,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:03,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:03,983 INFO L87 Difference]: Start difference. First operand 5018 states and 8089 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:04,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:04,187 INFO L93 Difference]: Finished difference Result 7883 states and 12174 transitions. [2022-01-11 01:18:04,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:04,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:04,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:04,200 INFO L225 Difference]: With dead ends: 7883 [2022-01-11 01:18:04,200 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:04,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:04,207 INFO L933 BasicCegarLoop]: 6157 mSDtfsCounter, 6024 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6024 SdHoareTripleChecker+Valid, 6273 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:04,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6024 Valid, 6273 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:04,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:04,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:04,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6058612440191387) internal successors, (8055), 5017 states have internal predecessors, (8055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:04,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8055 transitions. [2022-01-11 01:18:04,472 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8055 transitions. Word has length 154 [2022-01-11 01:18:04,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:04,472 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8055 transitions. [2022-01-11 01:18:04,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:04,473 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8055 transitions. [2022-01-11 01:18:04,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:04,474 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:04,475 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] [2022-01-11 01:18:04,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 01:18:04,475 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:04,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:04,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1884201052, now seen corresponding path program 1 times [2022-01-11 01:18:04,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:04,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266763574] [2022-01-11 01:18:04,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:04,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:04,536 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 01:18:04,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:04,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266763574] [2022-01-11 01:18:04,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266763574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:04,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:04,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:04,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512924948] [2022-01-11 01:18:04,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:04,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:04,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:04,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:04,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:04,539 INFO L87 Difference]: Start difference. First operand 5018 states and 8055 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:04,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:04,800 INFO L93 Difference]: Finished difference Result 7882 states and 12105 transitions. [2022-01-11 01:18:04,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:04,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:04,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:04,812 INFO L225 Difference]: With dead ends: 7882 [2022-01-11 01:18:04,813 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:04,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:04,822 INFO L933 BasicCegarLoop]: 6138 mSDtfsCounter, 6005 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6005 SdHoareTripleChecker+Valid, 6253 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:04,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6005 Valid, 6253 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:04,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:05,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:05,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5990829346092503) internal successors, (8021), 5017 states have internal predecessors, (8021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:05,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8021 transitions. [2022-01-11 01:18:05,063 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8021 transitions. Word has length 154 [2022-01-11 01:18:05,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:05,063 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8021 transitions. [2022-01-11 01:18:05,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:05,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8021 transitions. [2022-01-11 01:18:05,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:05,065 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:05,065 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] [2022-01-11 01:18:05,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 01:18:05,066 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:05,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:05,066 INFO L85 PathProgramCache]: Analyzing trace with hash -29955389, now seen corresponding path program 1 times [2022-01-11 01:18:05,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:05,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872073420] [2022-01-11 01:18:05,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:05,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:05,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:05,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:05,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872073420] [2022-01-11 01:18:05,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872073420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:05,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:05,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:05,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099877446] [2022-01-11 01:18:05,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:05,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:05,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:05,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:05,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:05,127 INFO L87 Difference]: Start difference. First operand 5018 states and 8021 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:05,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:05,383 INFO L93 Difference]: Finished difference Result 7880 states and 12034 transitions. [2022-01-11 01:18:05,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:05,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:05,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:05,396 INFO L225 Difference]: With dead ends: 7880 [2022-01-11 01:18:05,396 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:05,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:05,404 INFO L933 BasicCegarLoop]: 6119 mSDtfsCounter, 5985 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5985 SdHoareTripleChecker+Valid, 6233 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:05,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5985 Valid, 6233 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:05,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:05,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:05,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.592304625199362) internal successors, (7987), 5017 states have internal predecessors, (7987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:05,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7987 transitions. [2022-01-11 01:18:05,658 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7987 transitions. Word has length 154 [2022-01-11 01:18:05,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:05,658 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7987 transitions. [2022-01-11 01:18:05,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:05,658 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7987 transitions. [2022-01-11 01:18:05,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:05,660 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:05,660 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] [2022-01-11 01:18:05,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 01:18:05,661 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:05,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:05,661 INFO L85 PathProgramCache]: Analyzing trace with hash -85552030, now seen corresponding path program 1 times [2022-01-11 01:18:05,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:05,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779568098] [2022-01-11 01:18:05,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:05,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:05,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:05,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:05,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779568098] [2022-01-11 01:18:05,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779568098] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:05,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:05,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:05,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394599738] [2022-01-11 01:18:05,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:05,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:05,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:05,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:05,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:05,718 INFO L87 Difference]: Start difference. First operand 5018 states and 7987 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:05,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:05,980 INFO L93 Difference]: Finished difference Result 7879 states and 11965 transitions. [2022-01-11 01:18:05,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:05,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:05,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:05,993 INFO L225 Difference]: With dead ends: 7879 [2022-01-11 01:18:05,994 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:06,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:06,001 INFO L933 BasicCegarLoop]: 6100 mSDtfsCounter, 5966 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5966 SdHoareTripleChecker+Valid, 6213 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:06,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5966 Valid, 6213 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:06,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:06,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5855263157894737) internal successors, (7953), 5017 states have internal predecessors, (7953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:06,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7953 transitions. [2022-01-11 01:18:06,270 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7953 transitions. Word has length 154 [2022-01-11 01:18:06,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:06,270 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7953 transitions. [2022-01-11 01:18:06,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:06,271 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7953 transitions. [2022-01-11 01:18:06,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:06,273 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:06,273 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] [2022-01-11 01:18:06,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 01:18:06,273 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:06,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:06,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1188647551, now seen corresponding path program 1 times [2022-01-11 01:18:06,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:06,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805094351] [2022-01-11 01:18:06,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:06,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:06,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:06,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:06,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805094351] [2022-01-11 01:18:06,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805094351] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:06,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:06,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:06,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500292704] [2022-01-11 01:18:06,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:06,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:06,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:06,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:06,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:06,333 INFO L87 Difference]: Start difference. First operand 5018 states and 7953 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:06,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:06,559 INFO L93 Difference]: Finished difference Result 7878 states and 11896 transitions. [2022-01-11 01:18:06,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:06,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:06,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:06,572 INFO L225 Difference]: With dead ends: 7878 [2022-01-11 01:18:06,572 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:06,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:06,579 INFO L933 BasicCegarLoop]: 6081 mSDtfsCounter, 5947 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5947 SdHoareTripleChecker+Valid, 6193 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:06,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5947 Valid, 6193 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:06,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:06,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:06,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5787480063795853) internal successors, (7919), 5017 states have internal predecessors, (7919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:06,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7919 transitions. [2022-01-11 01:18:06,793 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7919 transitions. Word has length 154 [2022-01-11 01:18:06,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:06,794 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7919 transitions. [2022-01-11 01:18:06,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:06,794 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7919 transitions. [2022-01-11 01:18:06,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:06,795 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:06,796 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] [2022-01-11 01:18:06,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 01:18:06,796 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:06,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:06,796 INFO L85 PathProgramCache]: Analyzing trace with hash 396637600, now seen corresponding path program 1 times [2022-01-11 01:18:06,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:06,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706356722] [2022-01-11 01:18:06,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:06,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:06,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:06,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:06,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706356722] [2022-01-11 01:18:06,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706356722] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:06,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:06,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:06,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938909133] [2022-01-11 01:18:06,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:06,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:06,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:06,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:06,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:06,857 INFO L87 Difference]: Start difference. First operand 5018 states and 7919 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:07,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:07,076 INFO L93 Difference]: Finished difference Result 7877 states and 11827 transitions. [2022-01-11 01:18:07,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:07,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:07,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:07,089 INFO L225 Difference]: With dead ends: 7877 [2022-01-11 01:18:07,089 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:07,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:07,096 INFO L933 BasicCegarLoop]: 6062 mSDtfsCounter, 5928 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5928 SdHoareTripleChecker+Valid, 6173 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:07,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5928 Valid, 6173 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:07,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:07,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:07,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.571969696969697) internal successors, (7885), 5017 states have internal predecessors, (7885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:07,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7885 transitions. [2022-01-11 01:18:07,308 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7885 transitions. Word has length 154 [2022-01-11 01:18:07,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:07,308 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7885 transitions. [2022-01-11 01:18:07,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:07,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7885 transitions. [2022-01-11 01:18:07,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:07,310 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:07,311 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] [2022-01-11 01:18:07,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 01:18:07,311 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:07,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:07,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2003901759, now seen corresponding path program 1 times [2022-01-11 01:18:07,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:07,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457545310] [2022-01-11 01:18:07,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:07,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:07,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:07,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457545310] [2022-01-11 01:18:07,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457545310] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:07,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:07,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:07,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201365235] [2022-01-11 01:18:07,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:07,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:07,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:07,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:07,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:07,368 INFO L87 Difference]: Start difference. First operand 5018 states and 7885 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:07,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:07,591 INFO L93 Difference]: Finished difference Result 7876 states and 11758 transitions. [2022-01-11 01:18:07,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:07,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:07,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:07,603 INFO L225 Difference]: With dead ends: 7876 [2022-01-11 01:18:07,603 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:07,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:07,613 INFO L933 BasicCegarLoop]: 6043 mSDtfsCounter, 5909 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5909 SdHoareTripleChecker+Valid, 6153 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:07,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5909 Valid, 6153 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:07,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:07,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:07,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5651913875598087) internal successors, (7851), 5017 states have internal predecessors, (7851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:07,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7851 transitions. [2022-01-11 01:18:07,883 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7851 transitions. Word has length 154 [2022-01-11 01:18:07,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:07,883 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7851 transitions. [2022-01-11 01:18:07,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:07,884 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7851 transitions. [2022-01-11 01:18:07,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:07,885 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:07,885 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] [2022-01-11 01:18:07,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 01:18:07,886 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:07,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:07,886 INFO L85 PathProgramCache]: Analyzing trace with hash 494945246, now seen corresponding path program 1 times [2022-01-11 01:18:07,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:07,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239012009] [2022-01-11 01:18:07,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:07,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:07,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:07,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:07,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239012009] [2022-01-11 01:18:07,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239012009] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:07,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:07,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:07,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218669264] [2022-01-11 01:18:07,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:07,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:07,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:07,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:07,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:07,950 INFO L87 Difference]: Start difference. First operand 5018 states and 7851 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:08,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:08,177 INFO L93 Difference]: Finished difference Result 7875 states and 11689 transitions. [2022-01-11 01:18:08,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:08,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:08,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:08,190 INFO L225 Difference]: With dead ends: 7875 [2022-01-11 01:18:08,190 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:08,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:08,200 INFO L933 BasicCegarLoop]: 6024 mSDtfsCounter, 5890 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5890 SdHoareTripleChecker+Valid, 6133 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:08,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5890 Valid, 6133 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:08,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:08,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:08,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5584130781499204) internal successors, (7817), 5017 states have internal predecessors, (7817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:08,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7817 transitions. [2022-01-11 01:18:08,419 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7817 transitions. Word has length 154 [2022-01-11 01:18:08,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:08,419 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7817 transitions. [2022-01-11 01:18:08,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:08,419 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7817 transitions. [2022-01-11 01:18:08,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:08,421 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:08,421 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] [2022-01-11 01:18:08,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 01:18:08,422 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:08,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:08,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1353824765, now seen corresponding path program 1 times [2022-01-11 01:18:08,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:08,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674802725] [2022-01-11 01:18:08,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:08,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:08,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:08,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:08,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674802725] [2022-01-11 01:18:08,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674802725] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:08,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:08,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:08,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354339677] [2022-01-11 01:18:08,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:08,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:08,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:08,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:08,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:08,483 INFO L87 Difference]: Start difference. First operand 5018 states and 7817 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:08,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:08,734 INFO L93 Difference]: Finished difference Result 7874 states and 11620 transitions. [2022-01-11 01:18:08,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:08,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:08,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:08,745 INFO L225 Difference]: With dead ends: 7874 [2022-01-11 01:18:08,746 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 01:18:08,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:08,753 INFO L933 BasicCegarLoop]: 6005 mSDtfsCounter, 5871 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5871 SdHoareTripleChecker+Valid, 6113 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:08,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5871 Valid, 6113 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:08,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 01:18:09,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 01:18:09,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5516347687400318) internal successors, (7783), 5017 states have internal predecessors, (7783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:09,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7783 transitions. [2022-01-11 01:18:09,031 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7783 transitions. Word has length 154 [2022-01-11 01:18:09,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:09,031 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7783 transitions. [2022-01-11 01:18:09,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:09,031 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7783 transitions. [2022-01-11 01:18:09,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:09,033 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:09,033 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] [2022-01-11 01:18:09,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 01:18:09,034 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:09,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:09,034 INFO L85 PathProgramCache]: Analyzing trace with hash 104218396, now seen corresponding path program 1 times [2022-01-11 01:18:09,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:09,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754531383] [2022-01-11 01:18:09,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:09,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:09,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:09,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:09,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754531383] [2022-01-11 01:18:09,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754531383] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:09,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:09,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:18:09,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590476563] [2022-01-11 01:18:09,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:09,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:18:09,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:09,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:18:09,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:18:09,116 INFO L87 Difference]: Start difference. First operand 5018 states and 7783 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:09,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:09,632 INFO L93 Difference]: Finished difference Result 8900 states and 12971 transitions. [2022-01-11 01:18:09,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:18:09,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:09,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:09,648 INFO L225 Difference]: With dead ends: 8900 [2022-01-11 01:18:09,648 INFO L226 Difference]: Without dead ends: 6058 [2022-01-11 01:18:09,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 01:18:09,655 INFO L933 BasicCegarLoop]: 6156 mSDtfsCounter, 5752 mSDsluCounter, 14058 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5752 SdHoareTripleChecker+Valid, 20214 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:09,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5752 Valid, 20214 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:18:09,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6058 states. [2022-01-11 01:18:09,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6058 to 5024. [2022-01-11 01:18:09,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5024 states, 5022 states have (on average 1.5457984866587018) internal successors, (7763), 5023 states have internal predecessors, (7763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:09,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5024 states to 5024 states and 7763 transitions. [2022-01-11 01:18:09,937 INFO L78 Accepts]: Start accepts. Automaton has 5024 states and 7763 transitions. Word has length 154 [2022-01-11 01:18:09,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:09,938 INFO L470 AbstractCegarLoop]: Abstraction has 5024 states and 7763 transitions. [2022-01-11 01:18:09,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:09,938 INFO L276 IsEmpty]: Start isEmpty. Operand 5024 states and 7763 transitions. [2022-01-11 01:18:09,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:09,940 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:09,940 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] [2022-01-11 01:18:09,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 01:18:09,940 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:09,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:09,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1598130845, now seen corresponding path program 1 times [2022-01-11 01:18:09,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:09,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643572047] [2022-01-11 01:18:09,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:09,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:09,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:09,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643572047] [2022-01-11 01:18:09,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643572047] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:09,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:09,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:10,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665319459] [2022-01-11 01:18:10,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:10,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:10,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:10,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:10,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:10,001 INFO L87 Difference]: Start difference. First operand 5024 states and 7763 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:10,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:10,493 INFO L93 Difference]: Finished difference Result 10406 states and 14809 transitions. [2022-01-11 01:18:10,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:10,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:10,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:10,512 INFO L225 Difference]: With dead ends: 10406 [2022-01-11 01:18:10,512 INFO L226 Difference]: Without dead ends: 7574 [2022-01-11 01:18:10,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:10,520 INFO L933 BasicCegarLoop]: 5992 mSDtfsCounter, 5785 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5785 SdHoareTripleChecker+Valid, 7820 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:10,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5785 Valid, 7820 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:10,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7574 states. [2022-01-11 01:18:10,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7574 to 7568. [2022-01-11 01:18:10,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7568 states, 7566 states have (on average 1.4623314829500396) internal successors, (11064), 7567 states have internal predecessors, (11064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:10,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7568 states to 7568 states and 11064 transitions. [2022-01-11 01:18:10,969 INFO L78 Accepts]: Start accepts. Automaton has 7568 states and 11064 transitions. Word has length 154 [2022-01-11 01:18:10,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:10,969 INFO L470 AbstractCegarLoop]: Abstraction has 7568 states and 11064 transitions. [2022-01-11 01:18:10,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:10,969 INFO L276 IsEmpty]: Start isEmpty. Operand 7568 states and 11064 transitions. [2022-01-11 01:18:10,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:10,971 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:10,971 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] [2022-01-11 01:18:10,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 01:18:10,972 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:10,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:10,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1493901596, now seen corresponding path program 1 times [2022-01-11 01:18:10,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:10,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62236030] [2022-01-11 01:18:10,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:10,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:11,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:11,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:11,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62236030] [2022-01-11 01:18:11,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62236030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:11,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:11,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:18:11,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616416851] [2022-01-11 01:18:11,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:11,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:18:11,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:11,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:18:11,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:18:11,031 INFO L87 Difference]: Start difference. First operand 7568 states and 11064 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:11,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:11,818 INFO L93 Difference]: Finished difference Result 16418 states and 22711 transitions. [2022-01-11 01:18:11,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:18:11,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:11,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:11,847 INFO L225 Difference]: With dead ends: 16418 [2022-01-11 01:18:11,847 INFO L226 Difference]: Without dead ends: 11060 [2022-01-11 01:18:11,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 01:18:11,861 INFO L933 BasicCegarLoop]: 6045 mSDtfsCounter, 4940 mSDsluCounter, 15764 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4940 SdHoareTripleChecker+Valid, 21809 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:11,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4940 Valid, 21809 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:18:11,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11060 states. [2022-01-11 01:18:12,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11060 to 7580. [2022-01-11 01:18:12,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7580 states, 7578 states have (on average 1.4551332805489574) internal successors, (11027), 7579 states have internal predecessors, (11027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:12,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7580 states to 7580 states and 11027 transitions. [2022-01-11 01:18:12,347 INFO L78 Accepts]: Start accepts. Automaton has 7580 states and 11027 transitions. Word has length 154 [2022-01-11 01:18:12,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:12,348 INFO L470 AbstractCegarLoop]: Abstraction has 7580 states and 11027 transitions. [2022-01-11 01:18:12,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:12,348 INFO L276 IsEmpty]: Start isEmpty. Operand 7580 states and 11027 transitions. [2022-01-11 01:18:12,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:12,350 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:12,350 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] [2022-01-11 01:18:12,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 01:18:12,350 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:12,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:12,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1010226269, now seen corresponding path program 1 times [2022-01-11 01:18:12,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:12,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856441195] [2022-01-11 01:18:12,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:12,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:12,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:12,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:12,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856441195] [2022-01-11 01:18:12,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856441195] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:12,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:12,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:18:12,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916916837] [2022-01-11 01:18:12,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:12,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:18:12,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:12,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:18:12,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:18:12,422 INFO L87 Difference]: Start difference. First operand 7580 states and 11027 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:13,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:13,276 INFO L93 Difference]: Finished difference Result 16741 states and 22977 transitions. [2022-01-11 01:18:13,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:18:13,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:13,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:13,306 INFO L225 Difference]: With dead ends: 16741 [2022-01-11 01:18:13,306 INFO L226 Difference]: Without dead ends: 11378 [2022-01-11 01:18:13,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 01:18:13,316 INFO L933 BasicCegarLoop]: 6013 mSDtfsCounter, 4760 mSDsluCounter, 16069 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4760 SdHoareTripleChecker+Valid, 22082 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:13,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4760 Valid, 22082 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:18:13,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11378 states. [2022-01-11 01:18:13,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11378 to 7592. [2022-01-11 01:18:13,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7592 states, 7590 states have (on average 1.447957839262187) internal successors, (10990), 7591 states have internal predecessors, (10990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:13,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7592 states to 7592 states and 10990 transitions. [2022-01-11 01:18:13,802 INFO L78 Accepts]: Start accepts. Automaton has 7592 states and 10990 transitions. Word has length 154 [2022-01-11 01:18:13,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:13,803 INFO L470 AbstractCegarLoop]: Abstraction has 7592 states and 10990 transitions. [2022-01-11 01:18:13,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:13,803 INFO L276 IsEmpty]: Start isEmpty. Operand 7592 states and 10990 transitions. [2022-01-11 01:18:13,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:13,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:13,804 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] [2022-01-11 01:18:13,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 01:18:13,805 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:13,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:13,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1980347298, now seen corresponding path program 1 times [2022-01-11 01:18:13,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:13,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481195774] [2022-01-11 01:18:13,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:13,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:13,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:13,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:13,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481195774] [2022-01-11 01:18:13,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481195774] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:13,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:13,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:13,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919017201] [2022-01-11 01:18:13,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:13,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:13,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:13,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:13,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:13,876 INFO L87 Difference]: Start difference. First operand 7592 states and 10990 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:14,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:14,311 INFO L93 Difference]: Finished difference Result 13043 states and 17989 transitions. [2022-01-11 01:18:14,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:14,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:14,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:14,330 INFO L225 Difference]: With dead ends: 13043 [2022-01-11 01:18:14,330 INFO L226 Difference]: Without dead ends: 7592 [2022-01-11 01:18:14,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:14,339 INFO L933 BasicCegarLoop]: 5969 mSDtfsCounter, 5857 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5857 SdHoareTripleChecker+Valid, 5969 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:14,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5857 Valid, 5969 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:14,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7592 states. [2022-01-11 01:18:14,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7592 to 7592. [2022-01-11 01:18:14,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7592 states, 7590 states have (on average 1.4461133069828722) internal successors, (10976), 7591 states have internal predecessors, (10976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:14,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7592 states to 7592 states and 10976 transitions. [2022-01-11 01:18:14,761 INFO L78 Accepts]: Start accepts. Automaton has 7592 states and 10976 transitions. Word has length 154 [2022-01-11 01:18:14,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:14,761 INFO L470 AbstractCegarLoop]: Abstraction has 7592 states and 10976 transitions. [2022-01-11 01:18:14,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:14,761 INFO L276 IsEmpty]: Start isEmpty. Operand 7592 states and 10976 transitions. [2022-01-11 01:18:14,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:14,763 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:14,763 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] [2022-01-11 01:18:14,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 01:18:14,763 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:14,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:14,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1650581537, now seen corresponding path program 1 times [2022-01-11 01:18:14,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:14,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119567431] [2022-01-11 01:18:14,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:14,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:14,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:14,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:14,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119567431] [2022-01-11 01:18:14,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119567431] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:14,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:14,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:14,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940912578] [2022-01-11 01:18:14,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:14,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:14,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:14,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:14,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:14,865 INFO L87 Difference]: Start difference. First operand 7592 states and 10976 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:15,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:15,408 INFO L93 Difference]: Finished difference Result 13029 states and 17947 transitions. [2022-01-11 01:18:15,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:15,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:15,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:15,426 INFO L225 Difference]: With dead ends: 13029 [2022-01-11 01:18:15,427 INFO L226 Difference]: Without dead ends: 7592 [2022-01-11 01:18:15,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:15,434 INFO L933 BasicCegarLoop]: 5938 mSDtfsCounter, 5717 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5717 SdHoareTripleChecker+Valid, 6042 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:15,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5717 Valid, 6042 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:18:15,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7592 states. [2022-01-11 01:18:15,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7592 to 7592. [2022-01-11 01:18:15,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7592 states, 7590 states have (on average 1.4409749670619236) internal successors, (10937), 7591 states have internal predecessors, (10937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:15,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7592 states to 7592 states and 10937 transitions. [2022-01-11 01:18:15,897 INFO L78 Accepts]: Start accepts. Automaton has 7592 states and 10937 transitions. Word has length 154 [2022-01-11 01:18:15,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:15,897 INFO L470 AbstractCegarLoop]: Abstraction has 7592 states and 10937 transitions. [2022-01-11 01:18:15,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:15,897 INFO L276 IsEmpty]: Start isEmpty. Operand 7592 states and 10937 transitions. [2022-01-11 01:18:15,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 01:18:15,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:15,899 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] [2022-01-11 01:18:15,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 01:18:15,899 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:15,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:15,900 INFO L85 PathProgramCache]: Analyzing trace with hash -405817056, now seen corresponding path program 1 times [2022-01-11 01:18:15,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:15,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339439288] [2022-01-11 01:18:15,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:15,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:15,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:15,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:15,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339439288] [2022-01-11 01:18:15,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339439288] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:15,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:15,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:18:15,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237710796] [2022-01-11 01:18:15,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:15,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:15,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:15,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:15,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:15,969 INFO L87 Difference]: Start difference. First operand 7592 states and 10937 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:16,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:16,700 INFO L93 Difference]: Finished difference Result 18274 states and 24579 transitions. [2022-01-11 01:18:16,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:16,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 01:18:16,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:16,731 INFO L225 Difference]: With dead ends: 18274 [2022-01-11 01:18:16,732 INFO L226 Difference]: Without dead ends: 12846 [2022-01-11 01:18:16,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:16,745 INFO L933 BasicCegarLoop]: 5938 mSDtfsCounter, 5767 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5767 SdHoareTripleChecker+Valid, 7721 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:16,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5767 Valid, 7721 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:16,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12846 states. [2022-01-11 01:18:17,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12846 to 12504. [2022-01-11 01:18:17,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12504 states, 12502 states have (on average 1.3734602463605823) internal successors, (17171), 12503 states have internal predecessors, (17171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:17,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12504 states to 12504 states and 17171 transitions. [2022-01-11 01:18:17,546 INFO L78 Accepts]: Start accepts. Automaton has 12504 states and 17171 transitions. Word has length 154 [2022-01-11 01:18:17,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:17,546 INFO L470 AbstractCegarLoop]: Abstraction has 12504 states and 17171 transitions. [2022-01-11 01:18:17,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:17,547 INFO L276 IsEmpty]: Start isEmpty. Operand 12504 states and 17171 transitions. [2022-01-11 01:18:17,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 01:18:17,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:17,556 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] [2022-01-11 01:18:17,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 01:18:17,556 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:17,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:17,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1997236647, now seen corresponding path program 1 times [2022-01-11 01:18:17,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:17,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305869058] [2022-01-11 01:18:17,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:17,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:17,636 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:17,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:17,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305869058] [2022-01-11 01:18:17,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305869058] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:17,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:17,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:18:17,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478882579] [2022-01-11 01:18:17,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:17,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:17,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:17,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:17,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:17,639 INFO L87 Difference]: Start difference. First operand 12504 states and 17171 transitions. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:19,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:19,137 INFO L93 Difference]: Finished difference Result 32883 states and 43137 transitions. [2022-01-11 01:18:19,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:19,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 250 [2022-01-11 01:18:19,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:19,179 INFO L225 Difference]: With dead ends: 32883 [2022-01-11 01:18:19,180 INFO L226 Difference]: Without dead ends: 22549 [2022-01-11 01:18:19,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:19,197 INFO L933 BasicCegarLoop]: 5935 mSDtfsCounter, 5797 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5797 SdHoareTripleChecker+Valid, 7718 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:19,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5797 Valid, 7718 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:18:19,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22549 states. [2022-01-11 01:18:20,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22549 to 21927. [2022-01-11 01:18:20,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21927 states, 21925 states have (on average 1.3280273660205246) internal successors, (29117), 21926 states have internal predecessors, (29117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:20,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21927 states to 21927 states and 29117 transitions. [2022-01-11 01:18:20,585 INFO L78 Accepts]: Start accepts. Automaton has 21927 states and 29117 transitions. Word has length 250 [2022-01-11 01:18:20,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:20,585 INFO L470 AbstractCegarLoop]: Abstraction has 21927 states and 29117 transitions. [2022-01-11 01:18:20,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:20,586 INFO L276 IsEmpty]: Start isEmpty. Operand 21927 states and 29117 transitions. [2022-01-11 01:18:20,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 01:18:20,599 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:20,600 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] [2022-01-11 01:18:20,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 01:18:20,600 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:20,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:20,601 INFO L85 PathProgramCache]: Analyzing trace with hash 463387111, now seen corresponding path program 1 times [2022-01-11 01:18:20,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:20,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971852649] [2022-01-11 01:18:20,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:20,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:20,689 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:18:20,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:20,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971852649] [2022-01-11 01:18:20,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971852649] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:20,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:20,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:18:20,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219477817] [2022-01-11 01:18:20,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:20,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:20,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:20,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:20,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:20,691 INFO L87 Difference]: Start difference. First operand 21927 states and 29117 transitions. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:23,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:23,123 INFO L93 Difference]: Finished difference Result 60153 states and 77329 transitions. [2022-01-11 01:18:23,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:23,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 250 [2022-01-11 01:18:23,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:23,199 INFO L225 Difference]: With dead ends: 60153 [2022-01-11 01:18:23,199 INFO L226 Difference]: Without dead ends: 40495 [2022-01-11 01:18:23,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:23,231 INFO L933 BasicCegarLoop]: 7166 mSDtfsCounter, 5548 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5548 SdHoareTripleChecker+Valid, 9140 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:23,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5548 Valid, 9140 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:23,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40495 states. [2022-01-11 01:18:25,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40495 to 40493. [2022-01-11 01:18:25,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40493 states, 40491 states have (on average 1.291225210540614) internal successors, (52283), 40492 states have internal predecessors, (52283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:25,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40493 states to 40493 states and 52283 transitions. [2022-01-11 01:18:25,942 INFO L78 Accepts]: Start accepts. Automaton has 40493 states and 52283 transitions. Word has length 250 [2022-01-11 01:18:25,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:18:25,943 INFO L470 AbstractCegarLoop]: Abstraction has 40493 states and 52283 transitions. [2022-01-11 01:18:25,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:25,943 INFO L276 IsEmpty]: Start isEmpty. Operand 40493 states and 52283 transitions. [2022-01-11 01:18:25,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 01:18:25,962 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:18:25,963 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] [2022-01-11 01:18:25,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-11 01:18:25,963 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:18:25,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:18:25,964 INFO L85 PathProgramCache]: Analyzing trace with hash 292547654, now seen corresponding path program 1 times [2022-01-11 01:18:25,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:18:25,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281737225] [2022-01-11 01:18:25,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:18:25,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:18:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:18:26,006 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 01:18:26,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:18:26,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281737225] [2022-01-11 01:18:26,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281737225] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:18:26,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:18:26,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:18:26,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913496574] [2022-01-11 01:18:26,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:18:26,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:18:26,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:18:26,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:18:26,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:26,008 INFO L87 Difference]: Start difference. First operand 40493 states and 52283 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:18:28,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:18:28,734 INFO L93 Difference]: Finished difference Result 78575 states and 100260 transitions. [2022-01-11 01:18:28,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:18:28,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2022-01-11 01:18:28,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:18:28,787 INFO L225 Difference]: With dead ends: 78575 [2022-01-11 01:18:28,788 INFO L226 Difference]: Without dead ends: 40351 [2022-01-11 01:18:28,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:18:28,827 INFO L933 BasicCegarLoop]: 5950 mSDtfsCounter, 1988 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1988 SdHoareTripleChecker+Valid, 9908 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:18:28,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1988 Valid, 9908 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:18:28,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40351 states.