/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_SUM.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label44+token_ring.08.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 07:07:12,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 07:07:12,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 07:07:12,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 07:07:12,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 07:07:12,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 07:07:12,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 07:07:12,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 07:07:12,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 07:07:12,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 07:07:12,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 07:07:12,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 07:07:12,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 07:07:12,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 07:07:12,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 07:07:12,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 07:07:12,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 07:07:12,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 07:07:12,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 07:07:12,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 07:07:12,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 07:07:12,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 07:07:12,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 07:07:12,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 07:07:12,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 07:07:12,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 07:07:12,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 07:07:12,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 07:07:12,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 07:07:12,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 07:07:12,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 07:07:12,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 07:07:12,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 07:07:12,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 07:07:12,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 07:07:12,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 07:07:12,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 07:07:12,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 07:07:12,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 07:07:12,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 07:07:12,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 07:07:12,342 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 07:07:12,377 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 07:07:12,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 07:07:12,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 07:07:12,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 07:07:12,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 07:07:12,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 07:07:12,395 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 07:07:12,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 07:07:12,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 07:07:12,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 07:07:12,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 07:07:12,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 07:07:12,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 07:07:12,396 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 07:07:12,396 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 07:07:12,397 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 07:07:12,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 07:07:12,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 07:07:12,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 07:07:12,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 07:07:12,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 07:07:12,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:07:12,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 07:07:12,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 07:07:12,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 07:07:12,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 07:07:12,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 07:07:12,398 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 07:07:12,398 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 07:07:12,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 07:07:12,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 07:07:12,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 07:07:12,399 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 07:07:12,400 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 07:07:12,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 07:07:12,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 07:07:12,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 07:07:12,645 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 07:07:12,646 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 07:07:12,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label44+token_ring.08.cil-1.c [2022-01-11 07:07:12,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9138aca54/f913b1051d5143e2899aaf36664be893/FLAG892561ccc [2022-01-11 07:07:13,568 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 07:07:13,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label44+token_ring.08.cil-1.c [2022-01-11 07:07:13,616 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9138aca54/f913b1051d5143e2899aaf36664be893/FLAG892561ccc [2022-01-11 07:07:13,993 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9138aca54/f913b1051d5143e2899aaf36664be893 [2022-01-11 07:07:13,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 07:07:13,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 07:07:13,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 07:07:13,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 07:07:14,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 07:07:14,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:07:13" (1/1) ... [2022-01-11 07:07:14,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7461e050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:14, skipping insertion in model container [2022-01-11 07:07:14,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:07:13" (1/1) ... [2022-01-11 07:07:14,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 07:07:14,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 07:07:15,721 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_label44+token_ring.08.cil-1.c[377340,377353] [2022-01-11 07:07:15,748 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_label44+token_ring.08.cil-1.c[383339,383352] [2022-01-11 07:07:15,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:07:15,940 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 07:07:16,718 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_label44+token_ring.08.cil-1.c[377340,377353] [2022-01-11 07:07:16,726 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_label44+token_ring.08.cil-1.c[383339,383352] [2022-01-11 07:07:16,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:07:16,800 INFO L208 MainTranslator]: Completed translation [2022-01-11 07:07:16,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:16 WrapperNode [2022-01-11 07:07:16,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 07:07:16,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 07:07:16,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 07:07:16,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 07:07:16,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:16" (1/1) ... [2022-01-11 07:07:16,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:16" (1/1) ... [2022-01-11 07:07:17,277 INFO L137 Inliner]: procedures = 61, calls = 65, calls flagged for inlining = 60, calls inlined = 167, statements flattened = 14693 [2022-01-11 07:07:17,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 07:07:17,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 07:07:17,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 07:07:17,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 07:07:17,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:16" (1/1) ... [2022-01-11 07:07:17,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:16" (1/1) ... [2022-01-11 07:07:17,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:16" (1/1) ... [2022-01-11 07:07:17,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:16" (1/1) ... [2022-01-11 07:07:17,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:16" (1/1) ... [2022-01-11 07:07:17,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:16" (1/1) ... [2022-01-11 07:07:17,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:16" (1/1) ... [2022-01-11 07:07:17,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 07:07:17,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 07:07:17,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 07:07:17,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 07:07:17,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:16" (1/1) ... [2022-01-11 07:07:17,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:07:17,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:07:17,924 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 07:07:17,942 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 07:07:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 07:07:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 07:07:17,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 07:07:17,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 07:07:18,139 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 07:07:18,141 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 07:07:27,247 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 07:07:27,275 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 07:07:27,275 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-01-11 07:07:27,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:07:27 BoogieIcfgContainer [2022-01-11 07:07:27,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 07:07:27,280 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 07:07:27,280 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 07:07:27,281 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 07:07:27,284 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:07:27" (1/1) ... [2022-01-11 07:07:28,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:07:28 BasicIcfg [2022-01-11 07:07:28,990 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 07:07:28,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 07:07:28,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 07:07:28,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 07:07:28,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 07:07:13" (1/4) ... [2022-01-11 07:07:28,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d9a8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:07:28, skipping insertion in model container [2022-01-11 07:07:28,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:16" (2/4) ... [2022-01-11 07:07:28,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d9a8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:07:28, skipping insertion in model container [2022-01-11 07:07:28,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:07:27" (3/4) ... [2022-01-11 07:07:28,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d9a8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 07:07:28, skipping insertion in model container [2022-01-11 07:07:28,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:07:28" (4/4) ... [2022-01-11 07:07:28,999 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.08.cil-1.cTransformedIcfg [2022-01-11 07:07:29,005 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 07:07:29,005 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-11 07:07:29,056 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 07:07:29,063 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 07:07:29,063 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-11 07:07:29,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 3183 states, 3180 states have (on average 1.759748427672956) internal successors, (5596), 3182 states have internal predecessors, (5596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:29,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:29,139 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:29,140 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] [2022-01-11 07:07:29,141 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:29,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:29,145 INFO L85 PathProgramCache]: Analyzing trace with hash 267453931, now seen corresponding path program 1 times [2022-01-11 07:07:29,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:29,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602750630] [2022-01-11 07:07:29,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:29,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:29,497 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 07:07:29,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:29,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602750630] [2022-01-11 07:07:29,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602750630] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:29,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:29,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:29,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842965853] [2022-01-11 07:07:29,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:29,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:29,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:29,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:29,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:29,542 INFO L87 Difference]: Start difference. First operand has 3183 states, 3180 states have (on average 1.759748427672956) internal successors, (5596), 3182 states have internal predecessors, (5596), 0 states have call successors, (0), 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 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:29,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:29,836 INFO L93 Difference]: Finished difference Result 6348 states and 11162 transitions. [2022-01-11 07:07:29,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:29,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:29,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:29,868 INFO L225 Difference]: With dead ends: 6348 [2022-01-11 07:07:29,869 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:29,881 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 07:07:29,884 INFO L933 BasicCegarLoop]: 5499 mSDtfsCounter, 5488 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5488 SdHoareTripleChecker+Valid, 5499 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 07:07:29,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5488 Valid, 5499 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:29,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:30,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:30,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7459858702633269) internal successors, (5437), 3115 states have internal predecessors, (5437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:30,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5437 transitions. [2022-01-11 07:07:30,045 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5437 transitions. Word has length 121 [2022-01-11 07:07:30,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:30,046 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5437 transitions. [2022-01-11 07:07:30,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:30,048 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5437 transitions. [2022-01-11 07:07:30,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:30,052 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:30,052 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] [2022-01-11 07:07:30,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 07:07:30,053 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:30,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:30,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1683429173, now seen corresponding path program 1 times [2022-01-11 07:07:30,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:30,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839747193] [2022-01-11 07:07:30,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:30,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:30,163 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 07:07:30,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:30,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839747193] [2022-01-11 07:07:30,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839747193] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:30,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:30,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:30,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855845578] [2022-01-11 07:07:30,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:30,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:30,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:30,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:30,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:30,167 INFO L87 Difference]: Start difference. First operand 3116 states and 5437 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:30,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:30,239 INFO L93 Difference]: Finished difference Result 4094 states and 6888 transitions. [2022-01-11 07:07:30,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:30,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:30,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:30,253 INFO L225 Difference]: With dead ends: 4094 [2022-01-11 07:07:30,254 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:30,258 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 07:07:30,260 INFO L933 BasicCegarLoop]: 5427 mSDtfsCounter, 5415 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5415 SdHoareTripleChecker+Valid, 5427 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 07:07:30,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5415 Valid, 5427 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:30,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:30,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:30,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7443802183686576) internal successors, (5432), 3115 states have internal predecessors, (5432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:30,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5432 transitions. [2022-01-11 07:07:30,335 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5432 transitions. Word has length 121 [2022-01-11 07:07:30,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:30,337 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5432 transitions. [2022-01-11 07:07:30,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:30,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5432 transitions. [2022-01-11 07:07:30,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:30,347 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:30,348 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] [2022-01-11 07:07:30,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 07:07:30,351 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:30,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:30,351 INFO L85 PathProgramCache]: Analyzing trace with hash -637982229, now seen corresponding path program 1 times [2022-01-11 07:07:30,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:30,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719897975] [2022-01-11 07:07:30,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:30,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:30,440 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 07:07:30,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:30,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719897975] [2022-01-11 07:07:30,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719897975] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:30,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:30,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:30,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972607310] [2022-01-11 07:07:30,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:30,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:30,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:30,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:30,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:30,445 INFO L87 Difference]: Start difference. First operand 3116 states and 5432 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:30,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:30,515 INFO L93 Difference]: Finished difference Result 4093 states and 6877 transitions. [2022-01-11 07:07:30,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:30,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:30,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:30,529 INFO L225 Difference]: With dead ends: 4093 [2022-01-11 07:07:30,529 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:30,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:30,538 INFO L933 BasicCegarLoop]: 5422 mSDtfsCounter, 5409 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5409 SdHoareTripleChecker+Valid, 5422 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 07:07:30,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5409 Valid, 5422 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:30,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:30,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:30,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7427745664739884) internal successors, (5427), 3115 states have internal predecessors, (5427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:30,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5427 transitions. [2022-01-11 07:07:30,611 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5427 transitions. Word has length 121 [2022-01-11 07:07:30,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:30,611 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5427 transitions. [2022-01-11 07:07:30,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:30,612 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5427 transitions. [2022-01-11 07:07:30,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:30,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:30,613 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] [2022-01-11 07:07:30,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 07:07:30,613 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:30,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:30,614 INFO L85 PathProgramCache]: Analyzing trace with hash 504120523, now seen corresponding path program 1 times [2022-01-11 07:07:30,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:30,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416593482] [2022-01-11 07:07:30,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:30,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:30,669 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 07:07:30,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:30,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416593482] [2022-01-11 07:07:30,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416593482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:30,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:30,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:30,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195384042] [2022-01-11 07:07:30,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:30,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:30,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:30,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:30,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:30,672 INFO L87 Difference]: Start difference. First operand 3116 states and 5427 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:30,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:30,746 INFO L93 Difference]: Finished difference Result 4091 states and 6864 transitions. [2022-01-11 07:07:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:30,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:30,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:30,758 INFO L225 Difference]: With dead ends: 4091 [2022-01-11 07:07:30,759 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:30,762 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 07:07:30,768 INFO L933 BasicCegarLoop]: 5417 mSDtfsCounter, 5402 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5402 SdHoareTripleChecker+Valid, 5417 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 07:07:30,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5402 Valid, 5417 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:30,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:30,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:30,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7411689145793192) internal successors, (5422), 3115 states have internal predecessors, (5422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:30,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5422 transitions. [2022-01-11 07:07:30,956 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5422 transitions. Word has length 121 [2022-01-11 07:07:30,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:30,956 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5422 transitions. [2022-01-11 07:07:30,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:30,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5422 transitions. [2022-01-11 07:07:30,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:30,957 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:30,958 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] [2022-01-11 07:07:30,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 07:07:30,958 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:30,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:30,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1743296427, now seen corresponding path program 1 times [2022-01-11 07:07:30,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:30,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536829625] [2022-01-11 07:07:30,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:30,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:31,024 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 07:07:31,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:31,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536829625] [2022-01-11 07:07:31,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536829625] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:31,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:31,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:31,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145841743] [2022-01-11 07:07:31,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:31,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:31,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:31,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:31,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:31,026 INFO L87 Difference]: Start difference. First operand 3116 states and 5422 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:31,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:31,106 INFO L93 Difference]: Finished difference Result 4090 states and 6853 transitions. [2022-01-11 07:07:31,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:31,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:31,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:31,117 INFO L225 Difference]: With dead ends: 4090 [2022-01-11 07:07:31,118 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:31,120 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 07:07:31,120 INFO L933 BasicCegarLoop]: 5412 mSDtfsCounter, 5396 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5396 SdHoareTripleChecker+Valid, 5412 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 07:07:31,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5396 Valid, 5412 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:31,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:31,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:31,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.73956326268465) internal successors, (5417), 3115 states have internal predecessors, (5417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:31,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5417 transitions. [2022-01-11 07:07:31,207 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5417 transitions. Word has length 121 [2022-01-11 07:07:31,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:31,207 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5417 transitions. [2022-01-11 07:07:31,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:31,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5417 transitions. [2022-01-11 07:07:31,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:31,209 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:31,209 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] [2022-01-11 07:07:31,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 07:07:31,210 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:31,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:31,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1506175179, now seen corresponding path program 1 times [2022-01-11 07:07:31,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:31,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431734459] [2022-01-11 07:07:31,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:31,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:31,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:07:31,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:31,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431734459] [2022-01-11 07:07:31,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431734459] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:31,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:31,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:31,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443226623] [2022-01-11 07:07:31,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:31,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:31,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:31,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:31,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:31,258 INFO L87 Difference]: Start difference. First operand 3116 states and 5417 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:31,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:31,332 INFO L93 Difference]: Finished difference Result 4089 states and 6842 transitions. [2022-01-11 07:07:31,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:31,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:31,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:31,344 INFO L225 Difference]: With dead ends: 4089 [2022-01-11 07:07:31,344 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:31,347 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 07:07:31,347 INFO L933 BasicCegarLoop]: 5407 mSDtfsCounter, 5390 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5390 SdHoareTripleChecker+Valid, 5407 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 07:07:31,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5390 Valid, 5407 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:31,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:31,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:31,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7379576107899808) internal successors, (5412), 3115 states have internal predecessors, (5412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5412 transitions. [2022-01-11 07:07:31,421 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5412 transitions. Word has length 121 [2022-01-11 07:07:31,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:31,421 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5412 transitions. [2022-01-11 07:07:31,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:31,422 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5412 transitions. [2022-01-11 07:07:31,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:31,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:31,423 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] [2022-01-11 07:07:31,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 07:07:31,423 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:31,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:31,424 INFO L85 PathProgramCache]: Analyzing trace with hash 2052715435, now seen corresponding path program 1 times [2022-01-11 07:07:31,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:31,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796154830] [2022-01-11 07:07:31,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:31,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:31,461 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 07:07:31,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:31,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796154830] [2022-01-11 07:07:31,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796154830] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:31,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:31,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:31,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26973126] [2022-01-11 07:07:31,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:31,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:31,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:31,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:31,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:31,463 INFO L87 Difference]: Start difference. First operand 3116 states and 5412 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:31,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:31,534 INFO L93 Difference]: Finished difference Result 4088 states and 6831 transitions. [2022-01-11 07:07:31,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:31,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:31,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:31,546 INFO L225 Difference]: With dead ends: 4088 [2022-01-11 07:07:31,547 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:31,550 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 07:07:31,550 INFO L933 BasicCegarLoop]: 5402 mSDtfsCounter, 5384 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5384 SdHoareTripleChecker+Valid, 5402 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 07:07:31,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5384 Valid, 5402 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:31,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:31,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:31,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7363519588953116) internal successors, (5407), 3115 states have internal predecessors, (5407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:31,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5407 transitions. [2022-01-11 07:07:31,630 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5407 transitions. Word has length 121 [2022-01-11 07:07:31,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:31,630 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5407 transitions. [2022-01-11 07:07:31,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:31,630 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5407 transitions. [2022-01-11 07:07:31,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:31,632 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:31,632 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] [2022-01-11 07:07:31,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 07:07:31,632 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:31,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:31,633 INFO L85 PathProgramCache]: Analyzing trace with hash -977695541, now seen corresponding path program 1 times [2022-01-11 07:07:31,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:31,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267075989] [2022-01-11 07:07:31,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:31,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:31,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:31,671 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 07:07:31,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:31,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267075989] [2022-01-11 07:07:31,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267075989] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:31,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:31,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:31,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741882835] [2022-01-11 07:07:31,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:31,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:31,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:31,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:31,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:31,673 INFO L87 Difference]: Start difference. First operand 3116 states and 5407 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:31,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:31,781 INFO L93 Difference]: Finished difference Result 4087 states and 6820 transitions. [2022-01-11 07:07:31,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:31,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:31,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:31,794 INFO L225 Difference]: With dead ends: 4087 [2022-01-11 07:07:31,794 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:31,797 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 07:07:31,798 INFO L933 BasicCegarLoop]: 5375 mSDtfsCounter, 5275 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5275 SdHoareTripleChecker+Valid, 5463 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:31,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5275 Valid, 5463 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:31,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:31,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:31,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.73121387283237) internal successors, (5391), 3115 states have internal predecessors, (5391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:31,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5391 transitions. [2022-01-11 07:07:31,881 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5391 transitions. Word has length 121 [2022-01-11 07:07:31,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:31,881 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5391 transitions. [2022-01-11 07:07:31,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:31,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5391 transitions. [2022-01-11 07:07:31,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:31,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:31,883 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] [2022-01-11 07:07:31,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 07:07:31,883 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:31,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:31,884 INFO L85 PathProgramCache]: Analyzing trace with hash -281389237, now seen corresponding path program 1 times [2022-01-11 07:07:31,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:31,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954686300] [2022-01-11 07:07:31,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:31,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:31,921 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 07:07:31,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:31,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954686300] [2022-01-11 07:07:31,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954686300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:31,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:31,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:31,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682396845] [2022-01-11 07:07:31,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:31,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:31,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:31,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:31,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:31,923 INFO L87 Difference]: Start difference. First operand 3116 states and 5391 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:32,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:32,135 INFO L93 Difference]: Finished difference Result 4086 states and 6787 transitions. [2022-01-11 07:07:32,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:32,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:32,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:32,148 INFO L225 Difference]: With dead ends: 4086 [2022-01-11 07:07:32,148 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:32,151 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 07:07:32,153 INFO L933 BasicCegarLoop]: 5359 mSDtfsCounter, 5259 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5259 SdHoareTripleChecker+Valid, 5446 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:32,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5259 Valid, 5446 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:32,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:32,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:32,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7260757867694283) internal successors, (5375), 3115 states have internal predecessors, (5375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:32,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5375 transitions. [2022-01-11 07:07:32,245 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5375 transitions. Word has length 121 [2022-01-11 07:07:32,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:32,245 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5375 transitions. [2022-01-11 07:07:32,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:32,248 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5375 transitions. [2022-01-11 07:07:32,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:32,250 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:32,250 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] [2022-01-11 07:07:32,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 07:07:32,250 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:32,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:32,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1236411862, now seen corresponding path program 1 times [2022-01-11 07:07:32,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:32,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368366635] [2022-01-11 07:07:32,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:32,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:32,298 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 07:07:32,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:32,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368366635] [2022-01-11 07:07:32,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368366635] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:32,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:32,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:32,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327047704] [2022-01-11 07:07:32,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:32,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:32,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:32,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:32,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:32,301 INFO L87 Difference]: Start difference. First operand 3116 states and 5375 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:32,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:32,416 INFO L93 Difference]: Finished difference Result 4085 states and 6754 transitions. [2022-01-11 07:07:32,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:32,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:32,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:32,427 INFO L225 Difference]: With dead ends: 4085 [2022-01-11 07:07:32,428 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:32,431 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 07:07:32,431 INFO L933 BasicCegarLoop]: 5343 mSDtfsCounter, 5243 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5243 SdHoareTripleChecker+Valid, 5429 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:32,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5243 Valid, 5429 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:32,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:32,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:32,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7209377007064868) internal successors, (5359), 3115 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:32,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5359 transitions. [2022-01-11 07:07:32,532 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5359 transitions. Word has length 121 [2022-01-11 07:07:32,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:32,532 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5359 transitions. [2022-01-11 07:07:32,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:32,533 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5359 transitions. [2022-01-11 07:07:32,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:32,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:32,534 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] [2022-01-11 07:07:32,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 07:07:32,535 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:32,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:32,536 INFO L85 PathProgramCache]: Analyzing trace with hash -844500471, now seen corresponding path program 1 times [2022-01-11 07:07:32,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:32,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825789549] [2022-01-11 07:07:32,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:32,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:32,582 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 07:07:32,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:32,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825789549] [2022-01-11 07:07:32,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825789549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:32,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:32,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:32,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15092060] [2022-01-11 07:07:32,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:32,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:32,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:32,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:32,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:32,585 INFO L87 Difference]: Start difference. First operand 3116 states and 5359 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:32,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:32,693 INFO L93 Difference]: Finished difference Result 4084 states and 6721 transitions. [2022-01-11 07:07:32,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:32,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:32,701 INFO L225 Difference]: With dead ends: 4084 [2022-01-11 07:07:32,702 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:32,704 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 07:07:32,704 INFO L933 BasicCegarLoop]: 5327 mSDtfsCounter, 5227 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5227 SdHoareTripleChecker+Valid, 5412 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:32,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5227 Valid, 5412 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:32,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:32,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:32,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7157996146435452) internal successors, (5343), 3115 states have internal predecessors, (5343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:32,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5343 transitions. [2022-01-11 07:07:32,793 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5343 transitions. Word has length 121 [2022-01-11 07:07:32,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:32,794 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5343 transitions. [2022-01-11 07:07:32,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:32,794 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5343 transitions. [2022-01-11 07:07:32,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:32,795 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:32,795 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] [2022-01-11 07:07:32,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 07:07:32,796 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:32,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:32,796 INFO L85 PathProgramCache]: Analyzing trace with hash -735009944, now seen corresponding path program 1 times [2022-01-11 07:07:32,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:32,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018059391] [2022-01-11 07:07:32,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:32,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:32,847 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 07:07:32,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:32,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018059391] [2022-01-11 07:07:32,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018059391] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:32,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:32,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:32,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528399832] [2022-01-11 07:07:32,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:32,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:32,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:32,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:32,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:32,849 INFO L87 Difference]: Start difference. First operand 3116 states and 5343 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:32,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:32,962 INFO L93 Difference]: Finished difference Result 4083 states and 6688 transitions. [2022-01-11 07:07:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:32,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:32,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:32,969 INFO L225 Difference]: With dead ends: 4083 [2022-01-11 07:07:32,969 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:32,972 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 07:07:32,973 INFO L933 BasicCegarLoop]: 5311 mSDtfsCounter, 5211 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5211 SdHoareTripleChecker+Valid, 5395 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:32,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5211 Valid, 5395 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:32,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:33,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:33,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7106615285806037) internal successors, (5327), 3115 states have internal predecessors, (5327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:33,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5327 transitions. [2022-01-11 07:07:33,063 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5327 transitions. Word has length 121 [2022-01-11 07:07:33,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:33,065 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5327 transitions. [2022-01-11 07:07:33,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:33,065 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5327 transitions. [2022-01-11 07:07:33,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:33,066 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:33,067 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] [2022-01-11 07:07:33,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 07:07:33,067 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:33,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:33,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1115014713, now seen corresponding path program 1 times [2022-01-11 07:07:33,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:33,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190212733] [2022-01-11 07:07:33,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:33,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:33,112 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 07:07:33,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:33,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190212733] [2022-01-11 07:07:33,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190212733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:33,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:33,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:33,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128464299] [2022-01-11 07:07:33,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:33,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:33,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:33,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:33,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:33,114 INFO L87 Difference]: Start difference. First operand 3116 states and 5327 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:33,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:33,244 INFO L93 Difference]: Finished difference Result 4082 states and 6655 transitions. [2022-01-11 07:07:33,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:33,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:33,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:33,251 INFO L225 Difference]: With dead ends: 4082 [2022-01-11 07:07:33,251 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:33,253 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 07:07:33,254 INFO L933 BasicCegarLoop]: 5295 mSDtfsCounter, 5195 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5195 SdHoareTripleChecker+Valid, 5378 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:33,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5195 Valid, 5378 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:33,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:33,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:33,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7055234425176622) internal successors, (5311), 3115 states have internal predecessors, (5311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:33,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5311 transitions. [2022-01-11 07:07:33,349 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5311 transitions. Word has length 121 [2022-01-11 07:07:33,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:33,349 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5311 transitions. [2022-01-11 07:07:33,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:33,350 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5311 transitions. [2022-01-11 07:07:33,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:33,351 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:33,351 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] [2022-01-11 07:07:33,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 07:07:33,352 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:33,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:33,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1302603354, now seen corresponding path program 1 times [2022-01-11 07:07:33,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:33,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709442244] [2022-01-11 07:07:33,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:33,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:33,392 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 07:07:33,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:33,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709442244] [2022-01-11 07:07:33,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709442244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:33,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:33,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:33,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213435550] [2022-01-11 07:07:33,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:33,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:33,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:33,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:33,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:33,394 INFO L87 Difference]: Start difference. First operand 3116 states and 5311 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:33,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:33,514 INFO L93 Difference]: Finished difference Result 4081 states and 6622 transitions. [2022-01-11 07:07:33,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:33,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:33,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:33,521 INFO L225 Difference]: With dead ends: 4081 [2022-01-11 07:07:33,521 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:33,523 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 07:07:33,523 INFO L933 BasicCegarLoop]: 5279 mSDtfsCounter, 5179 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5179 SdHoareTripleChecker+Valid, 5361 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:33,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5179 Valid, 5361 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:33,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:33,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:33,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7003853564547207) internal successors, (5295), 3115 states have internal predecessors, (5295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:33,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5295 transitions. [2022-01-11 07:07:33,615 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5295 transitions. Word has length 121 [2022-01-11 07:07:33,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:33,615 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5295 transitions. [2022-01-11 07:07:33,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:33,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5295 transitions. [2022-01-11 07:07:33,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:33,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:33,617 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] [2022-01-11 07:07:33,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 07:07:33,617 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:33,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:33,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1677110917, now seen corresponding path program 1 times [2022-01-11 07:07:33,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:33,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658415487] [2022-01-11 07:07:33,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:33,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:33,669 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 07:07:33,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:33,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658415487] [2022-01-11 07:07:33,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658415487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:33,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:33,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:33,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344313333] [2022-01-11 07:07:33,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:33,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:33,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:33,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:33,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:33,671 INFO L87 Difference]: Start difference. First operand 3116 states and 5295 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:33,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:33,792 INFO L93 Difference]: Finished difference Result 4080 states and 6589 transitions. [2022-01-11 07:07:33,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:33,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:33,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:33,798 INFO L225 Difference]: With dead ends: 4080 [2022-01-11 07:07:33,799 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:33,802 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 07:07:33,803 INFO L933 BasicCegarLoop]: 5263 mSDtfsCounter, 5163 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5163 SdHoareTripleChecker+Valid, 5344 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:33,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5163 Valid, 5344 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:33,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:33,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:33,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.6952472703917791) internal successors, (5279), 3115 states have internal predecessors, (5279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:33,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5279 transitions. [2022-01-11 07:07:33,898 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5279 transitions. Word has length 121 [2022-01-11 07:07:33,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:33,898 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5279 transitions. [2022-01-11 07:07:33,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:33,898 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5279 transitions. [2022-01-11 07:07:33,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:33,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:33,899 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] [2022-01-11 07:07:33,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 07:07:33,900 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:33,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:33,900 INFO L85 PathProgramCache]: Analyzing trace with hash 218823908, now seen corresponding path program 1 times [2022-01-11 07:07:33,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:33,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653779463] [2022-01-11 07:07:33,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:33,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:33,941 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 07:07:33,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:33,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653779463] [2022-01-11 07:07:33,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653779463] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:33,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:33,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:33,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381051111] [2022-01-11 07:07:33,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:33,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:33,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:33,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:33,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:33,944 INFO L87 Difference]: Start difference. First operand 3116 states and 5279 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:34,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:34,048 INFO L93 Difference]: Finished difference Result 4079 states and 6556 transitions. [2022-01-11 07:07:34,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:34,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:34,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:34,054 INFO L225 Difference]: With dead ends: 4079 [2022-01-11 07:07:34,054 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:07:34,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:34,057 INFO L933 BasicCegarLoop]: 5247 mSDtfsCounter, 5147 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5147 SdHoareTripleChecker+Valid, 5327 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:34,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5147 Valid, 5327 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:34,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:07:34,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:07:34,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.6901091843288376) internal successors, (5263), 3115 states have internal predecessors, (5263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:34,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5263 transitions. [2022-01-11 07:07:34,130 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5263 transitions. Word has length 121 [2022-01-11 07:07:34,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:34,130 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5263 transitions. [2022-01-11 07:07:34,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:34,131 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5263 transitions. [2022-01-11 07:07:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:34,132 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:34,132 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] [2022-01-11 07:07:34,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 07:07:34,132 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:34,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:34,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1665847363, now seen corresponding path program 1 times [2022-01-11 07:07:34,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:34,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519111126] [2022-01-11 07:07:34,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:34,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:34,191 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 07:07:34,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:34,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519111126] [2022-01-11 07:07:34,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519111126] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:34,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:34,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:07:34,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481583485] [2022-01-11 07:07:34,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:34,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:07:34,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:34,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:07:34,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:07:34,193 INFO L87 Difference]: Start difference. First operand 3116 states and 5263 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:34,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:34,458 INFO L93 Difference]: Finished difference Result 4458 states and 7046 transitions. [2022-01-11 07:07:34,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:07:34,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:34,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:34,465 INFO L225 Difference]: With dead ends: 4458 [2022-01-11 07:07:34,465 INFO L226 Difference]: Without dead ends: 3509 [2022-01-11 07:07:34,467 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 07:07:34,467 INFO L933 BasicCegarLoop]: 5351 mSDtfsCounter, 3549 mSDsluCounter, 13532 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3549 SdHoareTripleChecker+Valid, 18883 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:34,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3549 Valid, 18883 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:07:34,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3509 states. [2022-01-11 07:07:34,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3509 to 3119. [2022-01-11 07:07:34,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3117 states have (on average 1.685915944818736) internal successors, (5255), 3118 states have internal predecessors, (5255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:34,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 5255 transitions. [2022-01-11 07:07:34,566 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 5255 transitions. Word has length 121 [2022-01-11 07:07:34,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:34,566 INFO L470 AbstractCegarLoop]: Abstraction has 3119 states and 5255 transitions. [2022-01-11 07:07:34,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:34,567 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 5255 transitions. [2022-01-11 07:07:34,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:34,568 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:34,568 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] [2022-01-11 07:07:34,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 07:07:34,568 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:34,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:34,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1679380164, now seen corresponding path program 1 times [2022-01-11 07:07:34,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:34,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937758970] [2022-01-11 07:07:34,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:34,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:34,623 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 07:07:34,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:34,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937758970] [2022-01-11 07:07:34,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937758970] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:34,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:34,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:07:34,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195816806] [2022-01-11 07:07:34,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:34,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:07:34,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:34,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:07:34,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:07:34,626 INFO L87 Difference]: Start difference. First operand 3119 states and 5255 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:34,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:34,926 INFO L93 Difference]: Finished difference Result 4710 states and 7343 transitions. [2022-01-11 07:07:34,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:07:34,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:34,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:34,933 INFO L225 Difference]: With dead ends: 4710 [2022-01-11 07:07:34,933 INFO L226 Difference]: Without dead ends: 3793 [2022-01-11 07:07:34,936 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 07:07:34,936 INFO L933 BasicCegarLoop]: 5248 mSDtfsCounter, 2894 mSDsluCounter, 14816 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2894 SdHoareTripleChecker+Valid, 20064 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:34,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2894 Valid, 20064 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:07:34,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3793 states. [2022-01-11 07:07:35,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3793 to 3122. [2022-01-11 07:07:35,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3120 states have (on average 1.6817307692307693) internal successors, (5247), 3121 states have internal predecessors, (5247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:35,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 5247 transitions. [2022-01-11 07:07:35,080 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 5247 transitions. Word has length 121 [2022-01-11 07:07:35,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:35,080 INFO L470 AbstractCegarLoop]: Abstraction has 3122 states and 5247 transitions. [2022-01-11 07:07:35,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:35,081 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 5247 transitions. [2022-01-11 07:07:35,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:35,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:35,082 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] [2022-01-11 07:07:35,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 07:07:35,082 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:35,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:35,083 INFO L85 PathProgramCache]: Analyzing trace with hash -644647675, now seen corresponding path program 1 times [2022-01-11 07:07:35,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:35,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289709048] [2022-01-11 07:07:35,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:35,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:35,148 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 07:07:35,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:35,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289709048] [2022-01-11 07:07:35,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289709048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:35,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:35,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:07:35,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476643311] [2022-01-11 07:07:35,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:35,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:07:35,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:35,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:07:35,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:07:35,151 INFO L87 Difference]: Start difference. First operand 3122 states and 5247 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:35,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:35,456 INFO L93 Difference]: Finished difference Result 4768 states and 7386 transitions. [2022-01-11 07:07:35,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:07:35,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:35,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:35,464 INFO L225 Difference]: With dead ends: 4768 [2022-01-11 07:07:35,464 INFO L226 Difference]: Without dead ends: 3855 [2022-01-11 07:07:35,466 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 07:07:35,466 INFO L933 BasicCegarLoop]: 5219 mSDtfsCounter, 2747 mSDsluCounter, 15049 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2747 SdHoareTripleChecker+Valid, 20268 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:35,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2747 Valid, 20268 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:07:35,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2022-01-11 07:07:35,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 3125. [2022-01-11 07:07:35,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3123 states have (on average 1.6775536343259687) internal successors, (5239), 3124 states have internal predecessors, (5239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:35,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 5239 transitions. [2022-01-11 07:07:35,648 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 5239 transitions. Word has length 121 [2022-01-11 07:07:35,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:35,648 INFO L470 AbstractCegarLoop]: Abstraction has 3125 states and 5239 transitions. [2022-01-11 07:07:35,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:35,649 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 5239 transitions. [2022-01-11 07:07:35,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:35,650 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:35,650 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] [2022-01-11 07:07:35,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 07:07:35,650 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:35,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:35,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1714659334, now seen corresponding path program 1 times [2022-01-11 07:07:35,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:35,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026930149] [2022-01-11 07:07:35,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:35,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:35,708 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 07:07:35,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:35,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026930149] [2022-01-11 07:07:35,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026930149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:35,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:35,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:35,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578630220] [2022-01-11 07:07:35,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:35,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:35,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:35,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:35,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:35,710 INFO L87 Difference]: Start difference. First operand 3125 states and 5239 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:35,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:35,892 INFO L93 Difference]: Finished difference Result 4938 states and 7552 transitions. [2022-01-11 07:07:35,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:35,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:35,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:35,900 INFO L225 Difference]: With dead ends: 4938 [2022-01-11 07:07:35,900 INFO L226 Difference]: Without dead ends: 3949 [2022-01-11 07:07:35,902 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 07:07:35,903 INFO L933 BasicCegarLoop]: 5224 mSDtfsCounter, 5056 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5056 SdHoareTripleChecker+Valid, 6346 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 07:07:35,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5056 Valid, 6346 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:35,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3949 states. [2022-01-11 07:07:36,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3949 to 3947. [2022-01-11 07:07:36,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3945 states have (on average 1.5946768060836503) internal successors, (6291), 3946 states have internal predecessors, (6291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:36,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 6291 transitions. [2022-01-11 07:07:36,096 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 6291 transitions. Word has length 121 [2022-01-11 07:07:36,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:36,097 INFO L470 AbstractCegarLoop]: Abstraction has 3947 states and 6291 transitions. [2022-01-11 07:07:36,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:36,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 6291 transitions. [2022-01-11 07:07:36,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:36,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:36,098 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] [2022-01-11 07:07:36,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 07:07:36,098 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:36,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:36,099 INFO L85 PathProgramCache]: Analyzing trace with hash -469017593, now seen corresponding path program 1 times [2022-01-11 07:07:36,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:36,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624555267] [2022-01-11 07:07:36,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:36,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:36,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:07:36,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:36,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624555267] [2022-01-11 07:07:36,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624555267] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:36,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:36,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:36,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352124795] [2022-01-11 07:07:36,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:36,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:36,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:36,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:36,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:36,167 INFO L87 Difference]: Start difference. First operand 3947 states and 6291 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:36,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:36,343 INFO L93 Difference]: Finished difference Result 5754 states and 8595 transitions. [2022-01-11 07:07:36,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:36,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:36,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:36,351 INFO L225 Difference]: With dead ends: 5754 [2022-01-11 07:07:36,351 INFO L226 Difference]: Without dead ends: 3947 [2022-01-11 07:07:36,355 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 07:07:36,355 INFO L933 BasicCegarLoop]: 5218 mSDtfsCounter, 5131 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5131 SdHoareTripleChecker+Valid, 5218 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 07:07:36,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5131 Valid, 5218 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:36,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3947 states. [2022-01-11 07:07:36,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3947 to 3947. [2022-01-11 07:07:36,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3945 states have (on average 1.5926489226869456) internal successors, (6283), 3946 states have internal predecessors, (6283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:36,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 6283 transitions. [2022-01-11 07:07:36,534 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 6283 transitions. Word has length 121 [2022-01-11 07:07:36,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:36,534 INFO L470 AbstractCegarLoop]: Abstraction has 3947 states and 6283 transitions. [2022-01-11 07:07:36,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:36,535 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 6283 transitions. [2022-01-11 07:07:36,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:07:36,536 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:36,536 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] [2022-01-11 07:07:36,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 07:07:36,536 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:36,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:36,537 INFO L85 PathProgramCache]: Analyzing trace with hash 224084104, now seen corresponding path program 1 times [2022-01-11 07:07:36,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:36,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627948063] [2022-01-11 07:07:36,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:36,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:36,582 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 07:07:36,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:36,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627948063] [2022-01-11 07:07:36,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627948063] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:36,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:36,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:36,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613256919] [2022-01-11 07:07:36,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:36,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:36,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:36,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:36,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:36,585 INFO L87 Difference]: Start difference. First operand 3947 states and 6283 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:36,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:36,961 INFO L93 Difference]: Finished difference Result 7420 states and 10715 transitions. [2022-01-11 07:07:36,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:36,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:07:36,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:36,972 INFO L225 Difference]: With dead ends: 7420 [2022-01-11 07:07:36,973 INFO L226 Difference]: Without dead ends: 5628 [2022-01-11 07:07:36,976 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 07:07:36,977 INFO L933 BasicCegarLoop]: 5208 mSDtfsCounter, 5073 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5073 SdHoareTripleChecker+Valid, 6307 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:36,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5073 Valid, 6307 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:36,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5628 states. [2022-01-11 07:07:37,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5628 to 5498. [2022-01-11 07:07:37,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5498 states, 5496 states have (on average 1.5007278020378456) internal successors, (8248), 5497 states have internal predecessors, (8248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:37,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5498 states to 5498 states and 8248 transitions. [2022-01-11 07:07:37,259 INFO L78 Accepts]: Start accepts. Automaton has 5498 states and 8248 transitions. Word has length 121 [2022-01-11 07:07:37,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:37,259 INFO L470 AbstractCegarLoop]: Abstraction has 5498 states and 8248 transitions. [2022-01-11 07:07:37,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:37,259 INFO L276 IsEmpty]: Start isEmpty. Operand 5498 states and 8248 transitions. [2022-01-11 07:07:37,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:07:37,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:37,263 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] [2022-01-11 07:07:37,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 07:07:37,264 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:37,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:37,264 INFO L85 PathProgramCache]: Analyzing trace with hash 30719052, now seen corresponding path program 1 times [2022-01-11 07:07:37,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:37,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105034945] [2022-01-11 07:07:37,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:37,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:37,330 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 07:07:37,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:37,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105034945] [2022-01-11 07:07:37,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105034945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:37,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:37,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:07:37,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922873311] [2022-01-11 07:07:37,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:37,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:37,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:37,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:37,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:37,333 INFO L87 Difference]: Start difference. First operand 5498 states and 8248 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:37,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:37,900 INFO L93 Difference]: Finished difference Result 12013 states and 16541 transitions. [2022-01-11 07:07:37,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:37,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2022-01-11 07:07:37,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:37,917 INFO L225 Difference]: With dead ends: 12013 [2022-01-11 07:07:37,917 INFO L226 Difference]: Without dead ends: 8676 [2022-01-11 07:07:37,924 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 07:07:37,924 INFO L933 BasicCegarLoop]: 5205 mSDtfsCounter, 5094 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5094 SdHoareTripleChecker+Valid, 6304 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:37,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5094 Valid, 6304 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:37,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8676 states. [2022-01-11 07:07:38,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8676 to 8446. [2022-01-11 07:07:38,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8446 states, 8444 states have (on average 1.4187588820464234) internal successors, (11980), 8445 states have internal predecessors, (11980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:38,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8446 states to 8446 states and 11980 transitions. [2022-01-11 07:07:38,431 INFO L78 Accepts]: Start accepts. Automaton has 8446 states and 11980 transitions. Word has length 196 [2022-01-11 07:07:38,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:38,432 INFO L470 AbstractCegarLoop]: Abstraction has 8446 states and 11980 transitions. [2022-01-11 07:07:38,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:38,432 INFO L276 IsEmpty]: Start isEmpty. Operand 8446 states and 11980 transitions. [2022-01-11 07:07:38,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:07:38,437 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:38,437 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] [2022-01-11 07:07:38,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 07:07:38,438 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:38,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:38,438 INFO L85 PathProgramCache]: Analyzing trace with hash -2021145588, now seen corresponding path program 1 times [2022-01-11 07:07:38,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:38,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997951692] [2022-01-11 07:07:38,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:38,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:38,505 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 07:07:38,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:38,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997951692] [2022-01-11 07:07:38,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997951692] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:38,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:38,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:07:38,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630818389] [2022-01-11 07:07:38,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:38,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:38,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:38,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:38,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:38,506 INFO L87 Difference]: Start difference. First operand 8446 states and 11980 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:39,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:39,236 INFO L93 Difference]: Finished difference Result 20515 states and 27169 transitions. [2022-01-11 07:07:39,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:39,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2022-01-11 07:07:39,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:39,268 INFO L225 Difference]: With dead ends: 20515 [2022-01-11 07:07:39,269 INFO L226 Difference]: Without dead ends: 14303 [2022-01-11 07:07:39,281 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 07:07:39,282 INFO L933 BasicCegarLoop]: 5881 mSDtfsCounter, 4911 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4911 SdHoareTripleChecker+Valid, 7122 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 07:07:39,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4911 Valid, 7122 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:39,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14303 states. [2022-01-11 07:07:40,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14303 to 14301. [2022-01-11 07:07:40,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14301 states, 14299 states have (on average 1.3461780544093993) internal successors, (19249), 14300 states have internal predecessors, (19249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:40,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14301 states to 14301 states and 19249 transitions. [2022-01-11 07:07:40,077 INFO L78 Accepts]: Start accepts. Automaton has 14301 states and 19249 transitions. Word has length 196 [2022-01-11 07:07:40,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:40,077 INFO L470 AbstractCegarLoop]: Abstraction has 14301 states and 19249 transitions. [2022-01-11 07:07:40,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:40,077 INFO L276 IsEmpty]: Start isEmpty. Operand 14301 states and 19249 transitions. [2022-01-11 07:07:40,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:07:40,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:40,087 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] [2022-01-11 07:07:40,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 07:07:40,087 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:40,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:40,088 INFO L85 PathProgramCache]: Analyzing trace with hash 2037203883, now seen corresponding path program 1 times [2022-01-11 07:07:40,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:40,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264838064] [2022-01-11 07:07:40,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:40,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:40,127 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 07:07:40,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:40,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264838064] [2022-01-11 07:07:40,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264838064] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:40,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:40,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:07:40,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700551794] [2022-01-11 07:07:40,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:40,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:40,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:40,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:40,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:40,129 INFO L87 Difference]: Start difference. First operand 14301 states and 19249 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:40,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:40,869 INFO L93 Difference]: Finished difference Result 26261 states and 34278 transitions. [2022-01-11 07:07:40,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:40,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 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 196 [2022-01-11 07:07:40,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:40,899 INFO L225 Difference]: With dead ends: 26261 [2022-01-11 07:07:40,899 INFO L226 Difference]: Without dead ends: 14194 [2022-01-11 07:07:40,920 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 07:07:40,921 INFO L933 BasicCegarLoop]: 5217 mSDtfsCounter, 1255 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 9175 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 07:07:40,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1255 Valid, 9175 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:40,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14194 states. [2022-01-11 07:07:41,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14194 to 14194. [2022-01-11 07:07:41,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14194 states, 14192 states have (on average 1.3473083427282977) internal successors, (19121), 14193 states have internal predecessors, (19121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:41,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14194 states to 14194 states and 19121 transitions. [2022-01-11 07:07:41,819 INFO L78 Accepts]: Start accepts. Automaton has 14194 states and 19121 transitions. Word has length 196 [2022-01-11 07:07:41,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:41,820 INFO L470 AbstractCegarLoop]: Abstraction has 14194 states and 19121 transitions. [2022-01-11 07:07:41,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:41,820 INFO L276 IsEmpty]: Start isEmpty. Operand 14194 states and 19121 transitions. [2022-01-11 07:07:41,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-11 07:07:41,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:41,830 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] [2022-01-11 07:07:41,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 07:07:41,830 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:41,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:41,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1501960874, now seen corresponding path program 1 times [2022-01-11 07:07:41,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:41,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357404657] [2022-01-11 07:07:41,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:41,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:41,888 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 07:07:41,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:41,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357404657] [2022-01-11 07:07:41,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357404657] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:41,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:41,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:07:41,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996850641] [2022-01-11 07:07:41,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:41,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:41,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:41,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:41,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:41,891 INFO L87 Difference]: Start difference. First operand 14194 states and 19121 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:43,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:43,279 INFO L93 Difference]: Finished difference Result 37692 states and 48520 transitions. [2022-01-11 07:07:43,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:43,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 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 197 [2022-01-11 07:07:43,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:43,328 INFO L225 Difference]: With dead ends: 37692 [2022-01-11 07:07:43,328 INFO L226 Difference]: Without dead ends: 25732 [2022-01-11 07:07:43,351 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 07:07:43,354 INFO L933 BasicCegarLoop]: 5486 mSDtfsCounter, 5089 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5089 SdHoareTripleChecker+Valid, 6714 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:43,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5089 Valid, 6714 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:43,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25732 states. [2022-01-11 07:07:44,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25732 to 24994. [2022-01-11 07:07:44,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24994 states, 24992 states have (on average 1.3019366197183098) internal successors, (32538), 24993 states have internal predecessors, (32538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:44,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24994 states to 24994 states and 32538 transitions. [2022-01-11 07:07:44,804 INFO L78 Accepts]: Start accepts. Automaton has 24994 states and 32538 transitions. Word has length 197 [2022-01-11 07:07:44,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:44,804 INFO L470 AbstractCegarLoop]: Abstraction has 24994 states and 32538 transitions. [2022-01-11 07:07:44,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:44,804 INFO L276 IsEmpty]: Start isEmpty. Operand 24994 states and 32538 transitions. [2022-01-11 07:07:44,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-11 07:07:44,818 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:44,818 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] [2022-01-11 07:07:44,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 07:07:44,819 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:44,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:44,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1939712201, now seen corresponding path program 1 times [2022-01-11 07:07:44,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:44,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371522066] [2022-01-11 07:07:44,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:44,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:44,855 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 07:07:44,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:44,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371522066] [2022-01-11 07:07:44,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371522066] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:44,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:44,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:07:44,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958832063] [2022-01-11 07:07:44,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:44,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:44,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:44,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:44,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:44,856 INFO L87 Difference]: Start difference. First operand 24994 states and 32538 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:46,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:46,243 INFO L93 Difference]: Finished difference Result 47710 states and 60931 transitions. [2022-01-11 07:07:46,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:46,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 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 197 [2022-01-11 07:07:46,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:46,294 INFO L225 Difference]: With dead ends: 47710 [2022-01-11 07:07:46,295 INFO L226 Difference]: Without dead ends: 24888 [2022-01-11 07:07:46,331 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 07:07:46,333 INFO L933 BasicCegarLoop]: 5216 mSDtfsCounter, 1253 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 9174 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 07:07:46,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1253 Valid, 9174 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:46,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24888 states. [2022-01-11 07:07:47,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24888 to 24888. [2022-01-11 07:07:47,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24888 states, 24886 states have (on average 1.3024190307803585) internal successors, (32412), 24887 states have internal predecessors, (32412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:47,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24888 states to 24888 states and 32412 transitions. [2022-01-11 07:07:47,887 INFO L78 Accepts]: Start accepts. Automaton has 24888 states and 32412 transitions. Word has length 197 [2022-01-11 07:07:47,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:47,888 INFO L470 AbstractCegarLoop]: Abstraction has 24888 states and 32412 transitions. [2022-01-11 07:07:47,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:47,888 INFO L276 IsEmpty]: Start isEmpty. Operand 24888 states and 32412 transitions. [2022-01-11 07:07:47,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-11 07:07:47,898 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:47,898 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] [2022-01-11 07:07:47,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 07:07:47,898 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:47,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:47,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1728213883, now seen corresponding path program 1 times [2022-01-11 07:07:47,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:47,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233490074] [2022-01-11 07:07:47,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:47,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:47,956 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 07:07:47,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:47,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233490074] [2022-01-11 07:07:47,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233490074] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:47,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:47,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:07:47,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351231434] [2022-01-11 07:07:47,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:47,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:47,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:47,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:47,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:47,958 INFO L87 Difference]: Start difference. First operand 24888 states and 32412 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:50,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:50,592 INFO L93 Difference]: Finished difference Result 69189 states and 87657 transitions. [2022-01-11 07:07:50,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:50,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 198 [2022-01-11 07:07:50,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:50,648 INFO L225 Difference]: With dead ends: 69189 [2022-01-11 07:07:50,648 INFO L226 Difference]: Without dead ends: 46535 [2022-01-11 07:07:50,670 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 07:07:50,670 INFO L933 BasicCegarLoop]: 5505 mSDtfsCounter, 5089 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5089 SdHoareTripleChecker+Valid, 6731 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:50,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5089 Valid, 6731 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:50,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46535 states. [2022-01-11 07:07:53,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46535 to 45285. [2022-01-11 07:07:53,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45285 states, 45283 states have (on average 1.2751584479826867) internal successors, (57743), 45284 states have internal predecessors, (57743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:53,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45285 states to 45285 states and 57743 transitions. [2022-01-11 07:07:53,780 INFO L78 Accepts]: Start accepts. Automaton has 45285 states and 57743 transitions. Word has length 198 [2022-01-11 07:07:53,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:53,781 INFO L470 AbstractCegarLoop]: Abstraction has 45285 states and 57743 transitions. [2022-01-11 07:07:53,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:53,781 INFO L276 IsEmpty]: Start isEmpty. Operand 45285 states and 57743 transitions. [2022-01-11 07:07:53,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-11 07:07:53,799 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:53,799 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] [2022-01-11 07:07:53,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 07:07:53,800 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:53,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:53,800 INFO L85 PathProgramCache]: Analyzing trace with hash -905764968, now seen corresponding path program 1 times [2022-01-11 07:07:53,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:53,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634749406] [2022-01-11 07:07:53,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:53,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:53,836 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 07:07:53,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:53,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634749406] [2022-01-11 07:07:53,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634749406] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:53,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:53,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:07:53,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059085344] [2022-01-11 07:07:53,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:53,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:53,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:53,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:53,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:53,838 INFO L87 Difference]: Start difference. First operand 45285 states and 57743 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:56,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:56,730 INFO L93 Difference]: Finished difference Result 88286 states and 111335 transitions. [2022-01-11 07:07:56,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:56,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 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 198 [2022-01-11 07:07:56,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:56,782 INFO L225 Difference]: With dead ends: 88286 [2022-01-11 07:07:56,782 INFO L226 Difference]: Without dead ends: 45180 [2022-01-11 07:07:56,816 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 07:07:56,816 INFO L933 BasicCegarLoop]: 5215 mSDtfsCounter, 1251 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 9173 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 07:07:56,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 9173 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:56,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45180 states. [2022-01-11 07:07:59,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45180 to 45180. [2022-01-11 07:07:59,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45180 states, 45178 states have (on average 1.275377396077737) internal successors, (57619), 45179 states have internal predecessors, (57619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:59,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45180 states to 45180 states and 57619 transitions. [2022-01-11 07:07:59,974 INFO L78 Accepts]: Start accepts. Automaton has 45180 states and 57619 transitions. Word has length 198 [2022-01-11 07:07:59,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:59,974 INFO L470 AbstractCegarLoop]: Abstraction has 45180 states and 57619 transitions. [2022-01-11 07:07:59,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:07:59,974 INFO L276 IsEmpty]: Start isEmpty. Operand 45180 states and 57619 transitions. [2022-01-11 07:07:59,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-01-11 07:07:59,988 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:59,989 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] [2022-01-11 07:07:59,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 07:07:59,989 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:59,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:59,990 INFO L85 PathProgramCache]: Analyzing trace with hash 61581923, now seen corresponding path program 1 times [2022-01-11 07:07:59,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:59,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455950869] [2022-01-11 07:07:59,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:59,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:00,050 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 07:08:00,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:00,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455950869] [2022-01-11 07:08:00,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455950869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:00,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:00,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:00,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482895193] [2022-01-11 07:08:00,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:00,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:00,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:00,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:00,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:00,052 INFO L87 Difference]: Start difference. First operand 45180 states and 57619 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:08:05,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:05,236 INFO L93 Difference]: Finished difference Result 128648 states and 161470 transitions. [2022-01-11 07:08:05,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:05,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 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 199 [2022-01-11 07:08:05,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:05,365 INFO L225 Difference]: With dead ends: 128648 [2022-01-11 07:08:05,365 INFO L226 Difference]: Without dead ends: 85702 [2022-01-11 07:08:05,406 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 07:08:05,407 INFO L933 BasicCegarLoop]: 5506 mSDtfsCounter, 5089 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5089 SdHoareTripleChecker+Valid, 6730 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:08:05,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5089 Valid, 6730 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:05,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85702 states.