/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_label43+token_ring.07.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 07:05:19,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 07:05:19,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 07:05:19,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 07:05:19,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 07:05:19,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 07:05:19,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 07:05:19,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 07:05:19,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 07:05:19,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 07:05:19,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 07:05:19,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 07:05:19,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 07:05:19,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 07:05:19,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 07:05:19,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 07:05:19,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 07:05:19,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 07:05:19,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 07:05:19,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 07:05:19,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 07:05:19,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 07:05:19,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 07:05:19,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 07:05:19,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 07:05:19,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 07:05:19,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 07:05:19,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 07:05:19,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 07:05:19,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 07:05:19,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 07:05:19,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 07:05:19,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 07:05:19,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 07:05:19,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 07:05:19,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 07:05:19,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 07:05:19,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 07:05:19,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 07:05:19,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 07:05:19,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 07:05:19,221 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 07:05:19,236 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 07:05:19,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 07:05:19,236 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 07:05:19,236 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 07:05:19,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 07:05:19,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 07:05:19,237 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 07:05:19,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 07:05:19,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 07:05:19,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 07:05:19,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 07:05:19,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 07:05:19,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 07:05:19,238 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 07:05:19,238 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 07:05:19,238 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 07:05:19,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 07:05:19,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 07:05:19,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 07:05:19,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 07:05:19,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 07:05:19,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:05:19,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 07:05:19,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 07:05:19,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 07:05:19,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 07:05:19,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 07:05:19,244 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 07:05:19,244 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 07:05:19,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 07:05:19,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 07:05:19,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 07:05:19,246 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 07:05:19,246 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 07:05:19,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 07:05:19,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 07:05:19,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 07:05:19,478 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 07:05:19,479 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 07:05:19,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label43+token_ring.07.cil-2.c [2022-01-11 07:05:19,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d912a7129/1308a66cb1d449679fcb460d80f18216/FLAGf7b6376d5 [2022-01-11 07:05:20,238 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 07:05:20,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.07.cil-2.c [2022-01-11 07:05:20,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d912a7129/1308a66cb1d449679fcb460d80f18216/FLAGf7b6376d5 [2022-01-11 07:05:20,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d912a7129/1308a66cb1d449679fcb460d80f18216 [2022-01-11 07:05:20,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 07:05:20,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 07:05:20,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 07:05:20,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 07:05:20,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 07:05:20,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:05:20" (1/1) ... [2022-01-11 07:05:20,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c389796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:05:20, skipping insertion in model container [2022-01-11 07:05:20,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:05:20" (1/1) ... [2022-01-11 07:05:20,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 07:05:20,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 07:05:22,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.07.cil-2.c[381679,381692] [2022-01-11 07:05:22,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.07.cil-2.c[383339,383352] [2022-01-11 07:05:22,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:05:22,369 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 07:05:23,175 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.07.cil-2.c[381679,381692] [2022-01-11 07:05:23,178 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.07.cil-2.c[383339,383352] [2022-01-11 07:05:23,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:05:23,278 INFO L208 MainTranslator]: Completed translation [2022-01-11 07:05:23,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:05:23 WrapperNode [2022-01-11 07:05:23,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 07:05:23,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 07:05:23,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 07:05:23,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 07:05:23,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:05:23" (1/1) ... [2022-01-11 07:05:23,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:05:23" (1/1) ... [2022-01-11 07:05:23,886 INFO L137 Inliner]: procedures = 59, calls = 63, calls flagged for inlining = 58, calls inlined = 145, statements flattened = 14336 [2022-01-11 07:05:23,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 07:05:23,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 07:05:23,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 07:05:23,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 07:05:23,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:05:23" (1/1) ... [2022-01-11 07:05:23,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:05:23" (1/1) ... [2022-01-11 07:05:23,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:05:23" (1/1) ... [2022-01-11 07:05:24,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:05:23" (1/1) ... [2022-01-11 07:05:24,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:05:23" (1/1) ... [2022-01-11 07:05:24,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:05:23" (1/1) ... [2022-01-11 07:05:24,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:05:23" (1/1) ... [2022-01-11 07:05:24,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 07:05:24,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 07:05:24,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 07:05:24,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 07:05:24,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:05:23" (1/1) ... [2022-01-11 07:05:24,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:05:24,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:05:24,453 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 07:05:24,481 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 07:05:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 07:05:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 07:05:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 07:05:24,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 07:05:24,603 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 07:05:24,605 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 07:05:31,940 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 07:05:31,971 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 07:05:31,972 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-01-11 07:05:31,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:05:31 BoogieIcfgContainer [2022-01-11 07:05:31,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 07:05:31,979 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 07:05:31,979 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 07:05:31,980 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 07:05:31,982 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:05:31" (1/1) ... [2022-01-11 07:05:33,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:05:33 BasicIcfg [2022-01-11 07:05:33,228 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 07:05:33,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 07:05:33,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 07:05:33,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 07:05:33,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 07:05:20" (1/4) ... [2022-01-11 07:05:33,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef0e2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:05:33, skipping insertion in model container [2022-01-11 07:05:33,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:05:23" (2/4) ... [2022-01-11 07:05:33,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef0e2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:05:33, skipping insertion in model container [2022-01-11 07:05:33,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:05:31" (3/4) ... [2022-01-11 07:05:33,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef0e2ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 07:05:33, skipping insertion in model container [2022-01-11 07:05:33,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:05:33" (4/4) ... [2022-01-11 07:05:33,235 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.07.cil-2.cTransformedIcfg [2022-01-11 07:05:33,238 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 07:05:33,238 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 07:05:33,281 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 07:05:33,287 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 07:05:33,287 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 07:05:33,330 INFO L276 IsEmpty]: Start isEmpty. Operand has 3028 states, 3024 states have (on average 1.7744708994708995) internal successors, (5366), 3027 states have internal predecessors, (5366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:33,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:33,347 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:33,348 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] [2022-01-11 07:05:33,349 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:33,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:33,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1118785845, now seen corresponding path program 1 times [2022-01-11 07:05:33,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:33,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561890300] [2022-01-11 07:05:33,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:33,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:33,646 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 07:05:33,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:33,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561890300] [2022-01-11 07:05:33,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561890300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:33,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:33,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:33,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934026287] [2022-01-11 07:05:33,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:33,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:33,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:33,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:33,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:33,699 INFO L87 Difference]: Start difference. First operand has 3028 states, 3024 states have (on average 1.7744708994708995) internal successors, (5366), 3027 states have internal predecessors, (5366), 0 states have call successors, (0), 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 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:33,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:33,969 INFO L93 Difference]: Finished difference Result 6722 states and 11736 transitions. [2022-01-11 07:05:33,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:33,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:33,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:33,996 INFO L225 Difference]: With dead ends: 6722 [2022-01-11 07:05:33,996 INFO L226 Difference]: Without dead ends: 3638 [2022-01-11 07:05:34,007 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 07:05:34,011 INFO L933 BasicCegarLoop]: 5273 mSDtfsCounter, 5177 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5177 SdHoareTripleChecker+Valid, 6358 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 07:05:34,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5177 Valid, 6358 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:34,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3638 states. [2022-01-11 07:05:34,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3638 to 3634. [2022-01-11 07:05:34,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.710272652161939) internal successors, (6210), 3633 states have internal predecessors, (6210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:34,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6210 transitions. [2022-01-11 07:05:34,174 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6210 transitions. Word has length 110 [2022-01-11 07:05:34,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:34,175 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6210 transitions. [2022-01-11 07:05:34,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:34,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6210 transitions. [2022-01-11 07:05:34,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:34,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:34,179 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] [2022-01-11 07:05:34,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 07:05:34,179 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:34,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:34,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1296351509, now seen corresponding path program 1 times [2022-01-11 07:05:34,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:34,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618983326] [2022-01-11 07:05:34,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:34,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:34,290 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 07:05:34,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:34,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618983326] [2022-01-11 07:05:34,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618983326] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:34,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:34,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:34,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034399174] [2022-01-11 07:05:34,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:34,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:34,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:34,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:34,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:34,293 INFO L87 Difference]: Start difference. First operand 3634 states and 6210 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:34,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:34,543 INFO L93 Difference]: Finished difference Result 5132 states and 8438 transitions. [2022-01-11 07:05:34,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:34,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:34,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:34,554 INFO L225 Difference]: With dead ends: 5132 [2022-01-11 07:05:34,555 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:05:34,560 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 07:05:34,561 INFO L933 BasicCegarLoop]: 5200 mSDtfsCounter, 5190 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5190 SdHoareTripleChecker+Valid, 5200 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 07:05:34,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5190 Valid, 5200 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:34,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:05:34,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:05:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7080694023684935) internal successors, (6202), 3633 states have internal predecessors, (6202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:34,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6202 transitions. [2022-01-11 07:05:34,633 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6202 transitions. Word has length 110 [2022-01-11 07:05:34,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:34,633 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6202 transitions. [2022-01-11 07:05:34,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:34,635 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6202 transitions. [2022-01-11 07:05:34,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:34,641 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:34,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:05:34,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 07:05:34,646 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:34,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:34,646 INFO L85 PathProgramCache]: Analyzing trace with hash -609342773, now seen corresponding path program 1 times [2022-01-11 07:05:34,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:34,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524585159] [2022-01-11 07:05:34,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:34,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:34,723 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 07:05:34,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:34,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524585159] [2022-01-11 07:05:34,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524585159] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:34,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:34,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:34,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586880616] [2022-01-11 07:05:34,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:34,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:34,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:34,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:34,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:34,725 INFO L87 Difference]: Start difference. First operand 3634 states and 6202 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:34,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:34,797 INFO L93 Difference]: Finished difference Result 5131 states and 8421 transitions. [2022-01-11 07:05:34,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:34,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:34,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:34,810 INFO L225 Difference]: With dead ends: 5131 [2022-01-11 07:05:34,810 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:05:34,816 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 07:05:34,819 INFO L933 BasicCegarLoop]: 5195 mSDtfsCounter, 5184 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5184 SdHoareTripleChecker+Valid, 5195 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 07:05:34,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5184 Valid, 5195 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:34,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:05:34,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:05:34,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7058661525750483) internal successors, (6194), 3633 states have internal predecessors, (6194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:34,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6194 transitions. [2022-01-11 07:05:34,891 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6194 transitions. Word has length 110 [2022-01-11 07:05:34,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:34,891 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6194 transitions. [2022-01-11 07:05:34,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:34,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6194 transitions. [2022-01-11 07:05:34,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:34,893 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:34,893 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] [2022-01-11 07:05:34,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 07:05:34,893 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:34,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:34,894 INFO L85 PathProgramCache]: Analyzing trace with hash -725728533, now seen corresponding path program 1 times [2022-01-11 07:05:34,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:34,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862044180] [2022-01-11 07:05:34,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:34,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:34,965 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 07:05:34,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:34,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862044180] [2022-01-11 07:05:34,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862044180] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:34,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:34,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:34,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670129517] [2022-01-11 07:05:34,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:34,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:34,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:34,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:34,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:34,968 INFO L87 Difference]: Start difference. First operand 3634 states and 6194 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:35,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:35,044 INFO L93 Difference]: Finished difference Result 5130 states and 8404 transitions. [2022-01-11 07:05:35,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:35,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:35,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:35,055 INFO L225 Difference]: With dead ends: 5130 [2022-01-11 07:05:35,056 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:05:35,060 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 07:05:35,065 INFO L933 BasicCegarLoop]: 5190 mSDtfsCounter, 5178 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5178 SdHoareTripleChecker+Valid, 5190 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 07:05:35,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5178 Valid, 5190 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:35,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:05:35,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:05:35,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7036629027816028) internal successors, (6186), 3633 states have internal predecessors, (6186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:35,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6186 transitions. [2022-01-11 07:05:35,146 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6186 transitions. Word has length 110 [2022-01-11 07:05:35,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:35,147 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6186 transitions. [2022-01-11 07:05:35,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:35,147 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6186 transitions. [2022-01-11 07:05:35,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:35,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:35,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:05:35,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 07:05:35,149 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:35,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:35,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1422219573, now seen corresponding path program 1 times [2022-01-11 07:05:35,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:35,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829072142] [2022-01-11 07:05:35,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:35,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:35,201 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 07:05:35,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:35,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829072142] [2022-01-11 07:05:35,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829072142] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:35,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:35,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:35,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836570160] [2022-01-11 07:05:35,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:35,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:35,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:35,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:35,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:35,203 INFO L87 Difference]: Start difference. First operand 3634 states and 6186 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:35,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:35,286 INFO L93 Difference]: Finished difference Result 5129 states and 8387 transitions. [2022-01-11 07:05:35,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:35,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:35,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:35,297 INFO L225 Difference]: With dead ends: 5129 [2022-01-11 07:05:35,297 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:05:35,300 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 07:05:35,300 INFO L933 BasicCegarLoop]: 5185 mSDtfsCounter, 5172 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5172 SdHoareTripleChecker+Valid, 5185 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 07:05:35,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5172 Valid, 5185 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:35,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:05:35,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:05:35,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7014596529881576) internal successors, (6178), 3633 states have internal predecessors, (6178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:35,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6178 transitions. [2022-01-11 07:05:35,386 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6178 transitions. Word has length 110 [2022-01-11 07:05:35,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:35,388 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6178 transitions. [2022-01-11 07:05:35,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:35,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6178 transitions. [2022-01-11 07:05:35,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:35,390 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:35,391 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] [2022-01-11 07:05:35,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 07:05:35,391 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:35,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:35,391 INFO L85 PathProgramCache]: Analyzing trace with hash -474855701, now seen corresponding path program 1 times [2022-01-11 07:05:35,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:35,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296679237] [2022-01-11 07:05:35,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:35,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:35,421 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 07:05:35,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:35,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296679237] [2022-01-11 07:05:35,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296679237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:35,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:35,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:35,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25362834] [2022-01-11 07:05:35,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:35,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:35,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:35,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:35,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:35,423 INFO L87 Difference]: Start difference. First operand 3634 states and 6178 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:35,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:35,488 INFO L93 Difference]: Finished difference Result 5128 states and 8370 transitions. [2022-01-11 07:05:35,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:35,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:35,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:35,499 INFO L225 Difference]: With dead ends: 5128 [2022-01-11 07:05:35,499 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:05:35,501 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 07:05:35,503 INFO L933 BasicCegarLoop]: 5180 mSDtfsCounter, 5166 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5166 SdHoareTripleChecker+Valid, 5180 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 07:05:35,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5166 Valid, 5180 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:35,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:05:35,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:05:35,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6992564031947122) internal successors, (6170), 3633 states have internal predecessors, (6170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:35,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6170 transitions. [2022-01-11 07:05:35,781 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6170 transitions. Word has length 110 [2022-01-11 07:05:35,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:35,781 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6170 transitions. [2022-01-11 07:05:35,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:35,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6170 transitions. [2022-01-11 07:05:35,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:35,796 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:35,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:05:35,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 07:05:35,796 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:35,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:35,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1414126901, now seen corresponding path program 1 times [2022-01-11 07:05:35,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:35,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517612821] [2022-01-11 07:05:35,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:35,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:35,875 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 07:05:35,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:35,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517612821] [2022-01-11 07:05:35,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517612821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:35,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:35,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:35,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222178712] [2022-01-11 07:05:35,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:35,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:35,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:35,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:35,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:35,876 INFO L87 Difference]: Start difference. First operand 3634 states and 6170 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:35,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:35,975 INFO L93 Difference]: Finished difference Result 5127 states and 8353 transitions. [2022-01-11 07:05:35,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:35,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:35,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:35,998 INFO L225 Difference]: With dead ends: 5127 [2022-01-11 07:05:35,998 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:05:36,001 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 07:05:36,003 INFO L933 BasicCegarLoop]: 5175 mSDtfsCounter, 5160 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5160 SdHoareTripleChecker+Valid, 5175 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 07:05:36,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5160 Valid, 5175 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:36,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:05:36,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:05:36,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.697053153401267) internal successors, (6162), 3633 states have internal predecessors, (6162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:36,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6162 transitions. [2022-01-11 07:05:36,110 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6162 transitions. Word has length 110 [2022-01-11 07:05:36,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:36,110 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6162 transitions. [2022-01-11 07:05:36,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:36,111 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6162 transitions. [2022-01-11 07:05:36,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:36,111 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:36,112 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] [2022-01-11 07:05:36,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 07:05:36,112 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:36,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:36,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1742162667, now seen corresponding path program 1 times [2022-01-11 07:05:36,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:36,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558528130] [2022-01-11 07:05:36,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:36,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:36,160 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 07:05:36,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:36,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558528130] [2022-01-11 07:05:36,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558528130] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:36,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:36,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:36,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395166090] [2022-01-11 07:05:36,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:36,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:36,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:36,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:36,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:36,162 INFO L87 Difference]: Start difference. First operand 3634 states and 6162 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:36,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:36,248 INFO L93 Difference]: Finished difference Result 5126 states and 8336 transitions. [2022-01-11 07:05:36,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:36,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:36,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:36,256 INFO L225 Difference]: With dead ends: 5126 [2022-01-11 07:05:36,256 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:05:36,258 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 07:05:36,259 INFO L933 BasicCegarLoop]: 5170 mSDtfsCounter, 5154 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5154 SdHoareTripleChecker+Valid, 5170 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 07:05:36,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5154 Valid, 5170 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:36,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:05:36,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:05:36,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6948499036078215) internal successors, (6154), 3633 states have internal predecessors, (6154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:36,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6154 transitions. [2022-01-11 07:05:36,360 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6154 transitions. Word has length 110 [2022-01-11 07:05:36,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:36,360 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6154 transitions. [2022-01-11 07:05:36,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:36,361 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6154 transitions. [2022-01-11 07:05:36,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:36,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:36,362 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] [2022-01-11 07:05:36,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 07:05:36,362 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:36,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:36,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1289789131, now seen corresponding path program 1 times [2022-01-11 07:05:36,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:36,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259769428] [2022-01-11 07:05:36,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:36,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:36,397 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 07:05:36,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:36,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259769428] [2022-01-11 07:05:36,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259769428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:36,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:36,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:36,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340719502] [2022-01-11 07:05:36,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:36,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:36,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:36,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:36,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:36,400 INFO L87 Difference]: Start difference. First operand 3634 states and 6154 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:36,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:36,502 INFO L93 Difference]: Finished difference Result 5125 states and 8319 transitions. [2022-01-11 07:05:36,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:36,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:36,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:36,510 INFO L225 Difference]: With dead ends: 5125 [2022-01-11 07:05:36,510 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:05:36,512 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 07:05:36,514 INFO L933 BasicCegarLoop]: 5145 mSDtfsCounter, 5056 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5056 SdHoareTripleChecker+Valid, 5223 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:05:36,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5056 Valid, 5223 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:36,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:05:36,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:05:36,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.687689341779124) internal successors, (6128), 3633 states have internal predecessors, (6128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:36,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6128 transitions. [2022-01-11 07:05:36,612 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6128 transitions. Word has length 110 [2022-01-11 07:05:36,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:36,613 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6128 transitions. [2022-01-11 07:05:36,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:36,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6128 transitions. [2022-01-11 07:05:36,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:36,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:36,617 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] [2022-01-11 07:05:36,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 07:05:36,617 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:36,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:36,618 INFO L85 PathProgramCache]: Analyzing trace with hash 848876650, now seen corresponding path program 1 times [2022-01-11 07:05:36,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:36,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493677119] [2022-01-11 07:05:36,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:36,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:36,654 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 07:05:36,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:36,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493677119] [2022-01-11 07:05:36,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493677119] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:36,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:36,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:36,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349577224] [2022-01-11 07:05:36,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:36,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:36,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:36,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:36,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:36,656 INFO L87 Difference]: Start difference. First operand 3634 states and 6128 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:36,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:36,762 INFO L93 Difference]: Finished difference Result 5124 states and 8266 transitions. [2022-01-11 07:05:36,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:36,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:36,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:36,769 INFO L225 Difference]: With dead ends: 5124 [2022-01-11 07:05:36,769 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:05:36,772 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 07:05:36,772 INFO L933 BasicCegarLoop]: 5130 mSDtfsCounter, 5041 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5041 SdHoareTripleChecker+Valid, 5207 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:05:36,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5041 Valid, 5207 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:36,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:05:36,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:05:36,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.680528779950427) internal successors, (6102), 3633 states have internal predecessors, (6102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:36,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6102 transitions. [2022-01-11 07:05:36,872 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6102 transitions. Word has length 110 [2022-01-11 07:05:36,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:36,872 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6102 transitions. [2022-01-11 07:05:36,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:36,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6102 transitions. [2022-01-11 07:05:36,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:36,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:36,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:05:36,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 07:05:36,874 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:36,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:36,875 INFO L85 PathProgramCache]: Analyzing trace with hash -213454583, now seen corresponding path program 1 times [2022-01-11 07:05:36,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:36,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056278238] [2022-01-11 07:05:36,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:36,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:36,929 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 07:05:36,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:36,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056278238] [2022-01-11 07:05:36,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056278238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:36,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:36,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:36,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338647611] [2022-01-11 07:05:36,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:36,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:36,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:36,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:36,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:36,931 INFO L87 Difference]: Start difference. First operand 3634 states and 6102 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:37,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:37,019 INFO L93 Difference]: Finished difference Result 5123 states and 8213 transitions. [2022-01-11 07:05:37,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:37,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:37,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:37,026 INFO L225 Difference]: With dead ends: 5123 [2022-01-11 07:05:37,026 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:05:37,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:37,030 INFO L933 BasicCegarLoop]: 5115 mSDtfsCounter, 5026 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5026 SdHoareTripleChecker+Valid, 5191 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:05:37,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5026 Valid, 5191 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:37,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:05:37,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:05:37,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6733682181217295) internal successors, (6076), 3633 states have internal predecessors, (6076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:37,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6076 transitions. [2022-01-11 07:05:37,116 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6076 transitions. Word has length 110 [2022-01-11 07:05:37,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:37,116 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6076 transitions. [2022-01-11 07:05:37,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:37,117 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6076 transitions. [2022-01-11 07:05:37,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:37,117 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:37,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:05:37,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 07:05:37,118 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:37,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:37,118 INFO L85 PathProgramCache]: Analyzing trace with hash -173951704, now seen corresponding path program 1 times [2022-01-11 07:05:37,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:37,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647103805] [2022-01-11 07:05:37,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:37,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:37,148 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 07:05:37,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:37,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647103805] [2022-01-11 07:05:37,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647103805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:37,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:37,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:37,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918462346] [2022-01-11 07:05:37,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:37,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:37,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:37,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:37,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:37,150 INFO L87 Difference]: Start difference. First operand 3634 states and 6076 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:37,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:37,240 INFO L93 Difference]: Finished difference Result 5122 states and 8160 transitions. [2022-01-11 07:05:37,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:37,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:37,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:37,248 INFO L225 Difference]: With dead ends: 5122 [2022-01-11 07:05:37,248 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:05:37,251 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 07:05:37,252 INFO L933 BasicCegarLoop]: 5100 mSDtfsCounter, 5011 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5011 SdHoareTripleChecker+Valid, 5175 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:05:37,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5011 Valid, 5175 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:37,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:05:37,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:05:37,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6662076562930321) internal successors, (6050), 3633 states have internal predecessors, (6050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:37,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6050 transitions. [2022-01-11 07:05:37,340 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6050 transitions. Word has length 110 [2022-01-11 07:05:37,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:37,340 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6050 transitions. [2022-01-11 07:05:37,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:37,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6050 transitions. [2022-01-11 07:05:37,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:37,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:37,342 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] [2022-01-11 07:05:37,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 07:05:37,342 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:37,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:37,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1538076743, now seen corresponding path program 1 times [2022-01-11 07:05:37,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:37,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191151971] [2022-01-11 07:05:37,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:37,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:37,377 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 07:05:37,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:37,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191151971] [2022-01-11 07:05:37,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191151971] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:37,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:37,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:37,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751385022] [2022-01-11 07:05:37,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:37,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:37,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:37,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:37,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:37,378 INFO L87 Difference]: Start difference. First operand 3634 states and 6050 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:37,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:37,472 INFO L93 Difference]: Finished difference Result 5121 states and 8107 transitions. [2022-01-11 07:05:37,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:37,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:37,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:37,479 INFO L225 Difference]: With dead ends: 5121 [2022-01-11 07:05:37,480 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:05:37,483 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 07:05:37,484 INFO L933 BasicCegarLoop]: 5085 mSDtfsCounter, 4996 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4996 SdHoareTripleChecker+Valid, 5159 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:05:37,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4996 Valid, 5159 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:37,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:05:37,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:05:37,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.659047094464335) internal successors, (6024), 3633 states have internal predecessors, (6024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:37,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6024 transitions. [2022-01-11 07:05:37,575 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6024 transitions. Word has length 110 [2022-01-11 07:05:37,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:37,576 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6024 transitions. [2022-01-11 07:05:37,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:37,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6024 transitions. [2022-01-11 07:05:37,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:37,577 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:37,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:05:37,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 07:05:37,577 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:37,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:37,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1901523047, now seen corresponding path program 1 times [2022-01-11 07:05:37,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:37,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094934240] [2022-01-11 07:05:37,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:37,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:37,607 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 07:05:37,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:37,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094934240] [2022-01-11 07:05:37,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094934240] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:37,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:37,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:37,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893178757] [2022-01-11 07:05:37,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:37,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:37,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:37,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:37,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:37,608 INFO L87 Difference]: Start difference. First operand 3634 states and 6024 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:37,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:37,706 INFO L93 Difference]: Finished difference Result 5120 states and 8054 transitions. [2022-01-11 07:05:37,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:37,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:37,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:37,713 INFO L225 Difference]: With dead ends: 5120 [2022-01-11 07:05:37,713 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:05:37,716 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 07:05:37,717 INFO L933 BasicCegarLoop]: 5070 mSDtfsCounter, 4981 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4981 SdHoareTripleChecker+Valid, 5143 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:05:37,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4981 Valid, 5143 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:37,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:05:37,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:05:37,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6518865326356376) internal successors, (5998), 3633 states have internal predecessors, (5998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:37,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 5998 transitions. [2022-01-11 07:05:37,820 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 5998 transitions. Word has length 110 [2022-01-11 07:05:37,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:37,820 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 5998 transitions. [2022-01-11 07:05:37,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:37,821 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 5998 transitions. [2022-01-11 07:05:37,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:37,822 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:37,822 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] [2022-01-11 07:05:37,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 07:05:37,822 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:37,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:37,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1350797830, now seen corresponding path program 1 times [2022-01-11 07:05:37,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:37,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477183248] [2022-01-11 07:05:37,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:37,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:37,852 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 07:05:37,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:37,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477183248] [2022-01-11 07:05:37,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477183248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:37,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:37,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:37,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021371442] [2022-01-11 07:05:37,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:37,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:37,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:37,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:37,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:37,855 INFO L87 Difference]: Start difference. First operand 3634 states and 5998 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:37,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:37,970 INFO L93 Difference]: Finished difference Result 5119 states and 8001 transitions. [2022-01-11 07:05:37,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:37,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:37,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:37,978 INFO L225 Difference]: With dead ends: 5119 [2022-01-11 07:05:37,978 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:05:37,983 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 07:05:37,984 INFO L933 BasicCegarLoop]: 5055 mSDtfsCounter, 4966 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4966 SdHoareTripleChecker+Valid, 5127 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:05:37,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4966 Valid, 5127 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:37,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:05:38,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:05:38,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6447259708069402) internal successors, (5972), 3633 states have internal predecessors, (5972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:38,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 5972 transitions. [2022-01-11 07:05:38,093 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 5972 transitions. Word has length 110 [2022-01-11 07:05:38,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:38,094 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 5972 transitions. [2022-01-11 07:05:38,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:38,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 5972 transitions. [2022-01-11 07:05:38,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:38,095 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:38,095 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] [2022-01-11 07:05:38,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 07:05:38,095 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:38,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:38,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1008030939, now seen corresponding path program 1 times [2022-01-11 07:05:38,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:38,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611619103] [2022-01-11 07:05:38,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:38,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:38,130 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 07:05:38,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:38,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611619103] [2022-01-11 07:05:38,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611619103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:38,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:38,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:38,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909368733] [2022-01-11 07:05:38,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:38,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:38,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:38,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:38,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:38,133 INFO L87 Difference]: Start difference. First operand 3634 states and 5972 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:38,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:38,242 INFO L93 Difference]: Finished difference Result 5118 states and 7948 transitions. [2022-01-11 07:05:38,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:38,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:38,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:38,249 INFO L225 Difference]: With dead ends: 5118 [2022-01-11 07:05:38,250 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 07:05:38,253 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 07:05:38,254 INFO L933 BasicCegarLoop]: 5040 mSDtfsCounter, 4951 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4951 SdHoareTripleChecker+Valid, 5111 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:05:38,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4951 Valid, 5111 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:38,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 07:05:38,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 07:05:38,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.637565408978243) internal successors, (5946), 3633 states have internal predecessors, (5946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:38,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 5946 transitions. [2022-01-11 07:05:38,369 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 5946 transitions. Word has length 110 [2022-01-11 07:05:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:38,369 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 5946 transitions. [2022-01-11 07:05:38,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 5946 transitions. [2022-01-11 07:05:38,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:38,370 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:38,371 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] [2022-01-11 07:05:38,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 07:05:38,371 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:38,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:38,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1601551003, now seen corresponding path program 1 times [2022-01-11 07:05:38,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:38,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091955646] [2022-01-11 07:05:38,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:38,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:38,427 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 07:05:38,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:38,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091955646] [2022-01-11 07:05:38,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091955646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:38,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:38,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:05:38,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295355031] [2022-01-11 07:05:38,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:38,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:05:38,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:38,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:05:38,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:05:38,430 INFO L87 Difference]: Start difference. First operand 3634 states and 5946 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:38,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:38,717 INFO L93 Difference]: Finished difference Result 5824 states and 8873 transitions. [2022-01-11 07:05:38,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:05:38,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:38,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:38,727 INFO L225 Difference]: With dead ends: 5824 [2022-01-11 07:05:38,728 INFO L226 Difference]: Without dead ends: 4354 [2022-01-11 07:05:38,732 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 07:05:38,732 INFO L933 BasicCegarLoop]: 5129 mSDtfsCounter, 2968 mSDsluCounter, 13404 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2968 SdHoareTripleChecker+Valid, 18533 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:05:38,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2968 Valid, 18533 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:05:38,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4354 states. [2022-01-11 07:05:38,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4354 to 3640. [2022-01-11 07:05:38,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3637 states have (on average 1.6315644762166621) internal successors, (5934), 3639 states have internal predecessors, (5934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:38,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 5934 transitions. [2022-01-11 07:05:38,890 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 5934 transitions. Word has length 110 [2022-01-11 07:05:38,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:38,890 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 5934 transitions. [2022-01-11 07:05:38,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:38,891 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 5934 transitions. [2022-01-11 07:05:38,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:38,892 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:38,892 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] [2022-01-11 07:05:38,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 07:05:38,893 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:38,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:38,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1847864090, now seen corresponding path program 1 times [2022-01-11 07:05:38,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:38,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559350300] [2022-01-11 07:05:38,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:38,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:38,948 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 07:05:38,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:38,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559350300] [2022-01-11 07:05:38,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559350300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:38,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:38,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:05:38,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870713617] [2022-01-11 07:05:38,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:38,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:05:38,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:38,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:05:38,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:05:38,950 INFO L87 Difference]: Start difference. First operand 3640 states and 5934 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:39,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:39,203 INFO L93 Difference]: Finished difference Result 6293 states and 9431 transitions. [2022-01-11 07:05:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:05:39,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:39,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:39,212 INFO L225 Difference]: With dead ends: 6293 [2022-01-11 07:05:39,212 INFO L226 Difference]: Without dead ends: 4852 [2022-01-11 07:05:39,216 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 07:05:39,216 INFO L933 BasicCegarLoop]: 5027 mSDtfsCounter, 2360 mSDsluCounter, 14556 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 19583 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:05:39,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2360 Valid, 19583 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:05:39,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4852 states. [2022-01-11 07:05:39,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4852 to 3646. [2022-01-11 07:05:39,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3643 states have (on average 1.6255833104584134) internal successors, (5922), 3645 states have internal predecessors, (5922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:39,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 5922 transitions. [2022-01-11 07:05:39,340 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 5922 transitions. Word has length 110 [2022-01-11 07:05:39,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:39,340 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 5922 transitions. [2022-01-11 07:05:39,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:39,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 5922 transitions. [2022-01-11 07:05:39,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:39,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:39,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:05:39,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 07:05:39,341 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:39,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:39,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1524419623, now seen corresponding path program 1 times [2022-01-11 07:05:39,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:39,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52990993] [2022-01-11 07:05:39,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:39,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:39,384 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 07:05:39,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:39,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52990993] [2022-01-11 07:05:39,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52990993] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:39,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:39,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:05:39,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737567467] [2022-01-11 07:05:39,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:39,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:05:39,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:39,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:05:39,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:05:39,386 INFO L87 Difference]: Start difference. First operand 3646 states and 5922 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:39,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:39,659 INFO L93 Difference]: Finished difference Result 6402 states and 9517 transitions. [2022-01-11 07:05:39,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:05:39,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:39,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:39,667 INFO L225 Difference]: With dead ends: 6402 [2022-01-11 07:05:39,667 INFO L226 Difference]: Without dead ends: 4962 [2022-01-11 07:05:39,670 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 07:05:39,670 INFO L933 BasicCegarLoop]: 4999 mSDtfsCounter, 2224 mSDsluCounter, 14765 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2224 SdHoareTripleChecker+Valid, 19764 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:05:39,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2224 Valid, 19764 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:05:39,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4962 states. [2022-01-11 07:05:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4962 to 3652. [2022-01-11 07:05:39,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 3649 states have (on average 1.61962181419567) internal successors, (5910), 3651 states have internal predecessors, (5910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:39,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5910 transitions. [2022-01-11 07:05:39,839 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5910 transitions. Word has length 110 [2022-01-11 07:05:39,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:39,839 INFO L470 AbstractCegarLoop]: Abstraction has 3652 states and 5910 transitions. [2022-01-11 07:05:39,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:39,839 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5910 transitions. [2022-01-11 07:05:39,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:05:39,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:39,840 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] [2022-01-11 07:05:39,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 07:05:39,840 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:39,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:39,841 INFO L85 PathProgramCache]: Analyzing trace with hash -659257304, now seen corresponding path program 1 times [2022-01-11 07:05:39,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:39,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629250849] [2022-01-11 07:05:39,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:39,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:39,892 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 07:05:39,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:39,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629250849] [2022-01-11 07:05:39,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629250849] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:39,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:39,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:05:39,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755827906] [2022-01-11 07:05:39,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:39,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:39,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:39,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:39,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:39,894 INFO L87 Difference]: Start difference. First operand 3652 states and 5910 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:40,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:40,104 INFO L93 Difference]: Finished difference Result 6540 states and 9596 transitions. [2022-01-11 07:05:40,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:40,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 07:05:40,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:40,114 INFO L225 Difference]: With dead ends: 6540 [2022-01-11 07:05:40,114 INFO L226 Difference]: Without dead ends: 5040 [2022-01-11 07:05:40,118 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 07:05:40,119 INFO L933 BasicCegarLoop]: 5011 mSDtfsCounter, 4877 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4877 SdHoareTripleChecker+Valid, 5929 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:05:40,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4877 Valid, 5929 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:40,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5040 states. [2022-01-11 07:05:40,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5040 to 4924. [2022-01-11 07:05:40,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4924 states, 4921 states have (on average 1.5277382645803699) internal successors, (7518), 4923 states have internal predecessors, (7518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:40,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4924 states to 4924 states and 7518 transitions. [2022-01-11 07:05:40,314 INFO L78 Accepts]: Start accepts. Automaton has 4924 states and 7518 transitions. Word has length 110 [2022-01-11 07:05:40,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:40,314 INFO L470 AbstractCegarLoop]: Abstraction has 4924 states and 7518 transitions. [2022-01-11 07:05:40,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:40,314 INFO L276 IsEmpty]: Start isEmpty. Operand 4924 states and 7518 transitions. [2022-01-11 07:05:40,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-11 07:05:40,316 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:40,317 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] [2022-01-11 07:05:40,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 07:05:40,317 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:40,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:40,317 INFO L85 PathProgramCache]: Analyzing trace with hash 2091855512, now seen corresponding path program 1 times [2022-01-11 07:05:40,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:40,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313219277] [2022-01-11 07:05:40,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:40,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:40,368 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 07:05:40,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:40,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313219277] [2022-01-11 07:05:40,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313219277] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:40,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:40,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:05:40,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978198881] [2022-01-11 07:05:40,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:40,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:40,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:40,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:40,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:40,370 INFO L87 Difference]: Start difference. First operand 4924 states and 7518 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:40,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:40,710 INFO L93 Difference]: Finished difference Result 10310 states and 14374 transitions. [2022-01-11 07:05:40,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:40,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2022-01-11 07:05:40,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:40,725 INFO L225 Difference]: With dead ends: 10310 [2022-01-11 07:05:40,725 INFO L226 Difference]: Without dead ends: 7544 [2022-01-11 07:05:40,732 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 07:05:40,732 INFO L933 BasicCegarLoop]: 5008 mSDtfsCounter, 4906 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4906 SdHoareTripleChecker+Valid, 5926 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:05:40,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4906 Valid, 5926 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:40,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7544 states. [2022-01-11 07:05:41,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7544 to 7340. [2022-01-11 07:05:41,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7340 states, 7337 states have (on average 1.441733678615238) internal successors, (10578), 7339 states have internal predecessors, (10578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:41,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7340 states to 7340 states and 10578 transitions. [2022-01-11 07:05:41,092 INFO L78 Accepts]: Start accepts. Automaton has 7340 states and 10578 transitions. Word has length 178 [2022-01-11 07:05:41,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:41,093 INFO L470 AbstractCegarLoop]: Abstraction has 7340 states and 10578 transitions. [2022-01-11 07:05:41,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:41,093 INFO L276 IsEmpty]: Start isEmpty. Operand 7340 states and 10578 transitions. [2022-01-11 07:05:41,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-11 07:05:41,096 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:41,096 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] [2022-01-11 07:05:41,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 07:05:41,096 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:41,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:41,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1452187944, now seen corresponding path program 1 times [2022-01-11 07:05:41,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:41,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030007621] [2022-01-11 07:05:41,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:41,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:41,163 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 07:05:41,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:41,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030007621] [2022-01-11 07:05:41,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030007621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:41,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:41,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:05:41,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282470386] [2022-01-11 07:05:41,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:41,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:41,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:41,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:41,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:41,165 INFO L87 Difference]: Start difference. First operand 7340 states and 10578 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:41,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:41,817 INFO L93 Difference]: Finished difference Result 17261 states and 23062 transitions. [2022-01-11 07:05:41,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:41,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2022-01-11 07:05:41,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:41,838 INFO L225 Difference]: With dead ends: 17261 [2022-01-11 07:05:41,839 INFO L226 Difference]: Without dead ends: 12143 [2022-01-11 07:05:41,846 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 07:05:41,847 INFO L933 BasicCegarLoop]: 5548 mSDtfsCounter, 4745 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4745 SdHoareTripleChecker+Valid, 6591 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 07:05:41,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4745 Valid, 6591 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:41,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12143 states. [2022-01-11 07:05:42,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12143 to 12139. [2022-01-11 07:05:42,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12139 states, 12136 states have (on average 1.3618984838497035) internal successors, (16528), 12138 states have internal predecessors, (16528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:42,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12139 states to 12139 states and 16528 transitions. [2022-01-11 07:05:42,508 INFO L78 Accepts]: Start accepts. Automaton has 12139 states and 16528 transitions. Word has length 178 [2022-01-11 07:05:42,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:42,508 INFO L470 AbstractCegarLoop]: Abstraction has 12139 states and 16528 transitions. [2022-01-11 07:05:42,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:42,508 INFO L276 IsEmpty]: Start isEmpty. Operand 12139 states and 16528 transitions. [2022-01-11 07:05:42,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-11 07:05:42,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:42,514 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] [2022-01-11 07:05:42,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 07:05:42,514 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:42,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:42,515 INFO L85 PathProgramCache]: Analyzing trace with hash -2136418249, now seen corresponding path program 1 times [2022-01-11 07:05:42,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:42,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598958424] [2022-01-11 07:05:42,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:42,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:42,543 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 07:05:42,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:42,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598958424] [2022-01-11 07:05:42,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598958424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:42,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:42,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:05:42,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888406296] [2022-01-11 07:05:42,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:42,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:42,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:42,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:42,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:42,545 INFO L87 Difference]: Start difference. First operand 12139 states and 16528 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:43,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:43,108 INFO L93 Difference]: Finished difference Result 21961 states and 28866 transitions. [2022-01-11 07:05:43,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:43,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 178 [2022-01-11 07:05:43,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:43,129 INFO L225 Difference]: With dead ends: 21961 [2022-01-11 07:05:43,129 INFO L226 Difference]: Without dead ends: 12044 [2022-01-11 07:05:43,141 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 07:05:43,142 INFO L933 BasicCegarLoop]: 5019 mSDtfsCounter, 1057 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 8977 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 07:05:43,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1057 Valid, 8977 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:43,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12044 states. [2022-01-11 07:05:43,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12044 to 12044. [2022-01-11 07:05:43,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12044 states, 12041 states have (on average 1.363258865542729) internal successors, (16415), 12043 states have internal predecessors, (16415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:43,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12044 states to 12044 states and 16415 transitions. [2022-01-11 07:05:43,731 INFO L78 Accepts]: Start accepts. Automaton has 12044 states and 16415 transitions. Word has length 178 [2022-01-11 07:05:43,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:43,731 INFO L470 AbstractCegarLoop]: Abstraction has 12044 states and 16415 transitions. [2022-01-11 07:05:43,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 12044 states and 16415 transitions. [2022-01-11 07:05:43,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-11 07:05:43,736 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:43,736 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] [2022-01-11 07:05:43,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 07:05:43,736 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:43,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:43,737 INFO L85 PathProgramCache]: Analyzing trace with hash 409833945, now seen corresponding path program 1 times [2022-01-11 07:05:43,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:43,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666739870] [2022-01-11 07:05:43,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:43,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:43,775 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 07:05:43,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:43,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666739870] [2022-01-11 07:05:43,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666739870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:43,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:43,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:05:43,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791090342] [2022-01-11 07:05:43,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:43,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:43,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:43,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:43,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:43,777 INFO L87 Difference]: Start difference. First operand 12044 states and 16415 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:44,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:44,822 INFO L93 Difference]: Finished difference Result 31278 states and 40465 transitions. [2022-01-11 07:05:44,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:44,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2022-01-11 07:05:44,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:44,864 INFO L225 Difference]: With dead ends: 31278 [2022-01-11 07:05:44,864 INFO L226 Difference]: Without dead ends: 21456 [2022-01-11 07:05:44,880 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 07:05:44,881 INFO L933 BasicCegarLoop]: 5308 mSDtfsCounter, 4904 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 6339 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:05:44,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4904 Valid, 6339 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:44,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21456 states. [2022-01-11 07:05:46,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21456 to 20828. [2022-01-11 07:05:46,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20828 states, 20825 states have (on average 1.3117406962785114) internal successors, (27317), 20827 states have internal predecessors, (27317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:46,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20828 states to 20828 states and 27317 transitions. [2022-01-11 07:05:46,106 INFO L78 Accepts]: Start accepts. Automaton has 20828 states and 27317 transitions. Word has length 179 [2022-01-11 07:05:46,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:46,106 INFO L470 AbstractCegarLoop]: Abstraction has 20828 states and 27317 transitions. [2022-01-11 07:05:46,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:46,107 INFO L276 IsEmpty]: Start isEmpty. Operand 20828 states and 27317 transitions. [2022-01-11 07:05:46,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-11 07:05:46,115 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:46,115 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] [2022-01-11 07:05:46,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 07:05:46,115 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:46,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:46,116 INFO L85 PathProgramCache]: Analyzing trace with hash 163613143, now seen corresponding path program 1 times [2022-01-11 07:05:46,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:46,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062936153] [2022-01-11 07:05:46,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:46,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:46,143 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 07:05:46,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:46,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062936153] [2022-01-11 07:05:46,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062936153] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:46,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:46,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:05:46,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360612187] [2022-01-11 07:05:46,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:46,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:46,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:46,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:46,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:46,145 INFO L87 Difference]: Start difference. First operand 20828 states and 27317 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:47,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:47,511 INFO L93 Difference]: Finished difference Result 39393 states and 50508 transitions. [2022-01-11 07:05:47,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:47,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 179 [2022-01-11 07:05:47,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:47,549 INFO L225 Difference]: With dead ends: 39393 [2022-01-11 07:05:47,549 INFO L226 Difference]: Without dead ends: 20734 [2022-01-11 07:05:47,567 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 07:05:47,567 INFO L933 BasicCegarLoop]: 5018 mSDtfsCounter, 1055 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 8976 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 07:05:47,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1055 Valid, 8976 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:47,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20734 states. [2022-01-11 07:05:48,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20734 to 20734. [2022-01-11 07:05:48,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20734 states, 20731 states have (on average 1.3123341855192707) internal successors, (27206), 20733 states have internal predecessors, (27206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:48,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20734 states to 20734 states and 27206 transitions. [2022-01-11 07:05:48,864 INFO L78 Accepts]: Start accepts. Automaton has 20734 states and 27206 transitions. Word has length 179 [2022-01-11 07:05:48,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:48,865 INFO L470 AbstractCegarLoop]: Abstraction has 20734 states and 27206 transitions. [2022-01-11 07:05:48,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:48,865 INFO L276 IsEmpty]: Start isEmpty. Operand 20734 states and 27206 transitions. [2022-01-11 07:05:48,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-11 07:05:48,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:48,873 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] [2022-01-11 07:05:48,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 07:05:48,873 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:48,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:48,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1274280743, now seen corresponding path program 1 times [2022-01-11 07:05:48,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:48,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605758236] [2022-01-11 07:05:48,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:48,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:48,920 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 07:05:48,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:48,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605758236] [2022-01-11 07:05:48,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605758236] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:48,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:48,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:05:48,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659617306] [2022-01-11 07:05:48,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:48,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:48,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:48,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:48,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:48,922 INFO L87 Difference]: Start difference. First operand 20734 states and 27206 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:51,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:51,056 INFO L93 Difference]: Finished difference Result 56763 states and 72102 transitions. [2022-01-11 07:05:51,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:51,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 180 [2022-01-11 07:05:51,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:51,123 INFO L225 Difference]: With dead ends: 56763 [2022-01-11 07:05:51,123 INFO L226 Difference]: Without dead ends: 38251 [2022-01-11 07:05:51,153 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 07:05:51,153 INFO L933 BasicCegarLoop]: 5272 mSDtfsCounter, 4904 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 6301 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 07:05:51,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4904 Valid, 6301 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:51,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38251 states. [2022-01-11 07:05:53,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38251 to 37223. [2022-01-11 07:05:53,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37223 states, 37220 states have (on average 1.2806555615260613) internal successors, (47666), 37222 states have internal predecessors, (47666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:53,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37223 states to 37223 states and 47666 transitions. [2022-01-11 07:05:53,553 INFO L78 Accepts]: Start accepts. Automaton has 37223 states and 47666 transitions. Word has length 180 [2022-01-11 07:05:53,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:53,553 INFO L470 AbstractCegarLoop]: Abstraction has 37223 states and 47666 transitions. [2022-01-11 07:05:53,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:53,554 INFO L276 IsEmpty]: Start isEmpty. Operand 37223 states and 47666 transitions. [2022-01-11 07:05:53,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-11 07:05:53,566 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:53,566 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] [2022-01-11 07:05:53,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 07:05:53,566 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:53,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:53,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1782445368, now seen corresponding path program 1 times [2022-01-11 07:05:53,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:53,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873388857] [2022-01-11 07:05:53,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:53,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:53,591 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 07:05:53,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:53,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873388857] [2022-01-11 07:05:53,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873388857] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:53,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:53,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:05:53,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142312315] [2022-01-11 07:05:53,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:53,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:53,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:53,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:53,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:53,592 INFO L87 Difference]: Start difference. First operand 37223 states and 47666 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:55,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:55,926 INFO L93 Difference]: Finished difference Result 72177 states and 91200 transitions. [2022-01-11 07:05:55,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:55,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 180 [2022-01-11 07:05:55,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:55,980 INFO L225 Difference]: With dead ends: 72177 [2022-01-11 07:05:55,980 INFO L226 Difference]: Without dead ends: 37130 [2022-01-11 07:05:56,016 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 07:05:56,016 INFO L933 BasicCegarLoop]: 5017 mSDtfsCounter, 1053 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 8975 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 07:05:56,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1053 Valid, 8975 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:56,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37130 states. [2022-01-11 07:05:58,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37130 to 37130. [2022-01-11 07:05:58,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37130 states, 37127 states have (on average 1.2809276267945162) internal successors, (47557), 37129 states have internal predecessors, (47557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:58,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37130 states to 37130 states and 47557 transitions. [2022-01-11 07:05:58,511 INFO L78 Accepts]: Start accepts. Automaton has 37130 states and 47557 transitions. Word has length 180 [2022-01-11 07:05:58,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:58,511 INFO L470 AbstractCegarLoop]: Abstraction has 37130 states and 47557 transitions. [2022-01-11 07:05:58,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:58,511 INFO L276 IsEmpty]: Start isEmpty. Operand 37130 states and 47557 transitions. [2022-01-11 07:05:58,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-11 07:05:58,524 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:58,524 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] [2022-01-11 07:05:58,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 07:05:58,524 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:58,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:58,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1757173645, now seen corresponding path program 1 times [2022-01-11 07:05:58,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:58,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133054930] [2022-01-11 07:05:58,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:58,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:58,562 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 07:05:58,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:58,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133054930] [2022-01-11 07:05:58,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133054930] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:58,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:58,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:05:58,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477730152] [2022-01-11 07:05:58,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:58,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:58,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:58,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:58,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:58,564 INFO L87 Difference]: Start difference. First operand 37130 states and 47557 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:06:02,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:06:02,638 INFO L93 Difference]: Finished difference Result 104534 states and 131347 transitions. [2022-01-11 07:06:02,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:06:02,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2022-01-11 07:06:02,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:06:02,745 INFO L225 Difference]: With dead ends: 104534 [2022-01-11 07:06:02,746 INFO L226 Difference]: Without dead ends: 69626 [2022-01-11 07:06:02,783 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 07:06:02,783 INFO L933 BasicCegarLoop]: 5291 mSDtfsCounter, 4904 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 6318 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 07:06:02,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4904 Valid, 6318 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:06:02,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69626 states. [2022-01-11 07:06:07,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69626 to 68022. [2022-01-11 07:06:07,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68022 states, 68019 states have (on average 1.262220850056602) internal successors, (85855), 68021 states have internal predecessors, (85855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:06:07,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68022 states to 68022 states and 85855 transitions. [2022-01-11 07:06:07,240 INFO L78 Accepts]: Start accepts. Automaton has 68022 states and 85855 transitions. Word has length 181 [2022-01-11 07:06:07,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:06:07,241 INFO L470 AbstractCegarLoop]: Abstraction has 68022 states and 85855 transitions. [2022-01-11 07:06:07,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:06:07,241 INFO L276 IsEmpty]: Start isEmpty. Operand 68022 states and 85855 transitions. [2022-01-11 07:06:07,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-11 07:06:07,264 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:06:07,264 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] [2022-01-11 07:06:07,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 07:06:07,265 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:06:07,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:06:07,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1170528618, now seen corresponding path program 1 times [2022-01-11 07:06:07,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:06:07,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359274575] [2022-01-11 07:06:07,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:06:07,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:06:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:06:07,290 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 07:06:07,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:06:07,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359274575] [2022-01-11 07:06:07,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359274575] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:06:07,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:06:07,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:06:07,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370790564] [2022-01-11 07:06:07,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:06:07,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:06:07,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:06:07,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:06:07,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:06:07,292 INFO L87 Difference]: Start difference. First operand 68022 states and 85855 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:06:11,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:06:11,545 INFO L93 Difference]: Finished difference Result 133769 states and 167572 transitions. [2022-01-11 07:06:11,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:06:11,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 181 [2022-01-11 07:06:11,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:06:11,655 INFO L225 Difference]: With dead ends: 133769 [2022-01-11 07:06:11,656 INFO L226 Difference]: Without dead ends: 67930 [2022-01-11 07:06:11,708 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 07:06:11,709 INFO L933 BasicCegarLoop]: 5016 mSDtfsCounter, 1051 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 8974 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 07:06:11,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 8974 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:06:11,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67930 states. [2022-01-11 07:06:15,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67930 to 67930. [2022-01-11 07:06:15,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67930 states, 67927 states have (on average 1.2623551754088949) internal successors, (85748), 67929 states have internal predecessors, (85748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:06:16,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67930 states to 67930 states and 85748 transitions. [2022-01-11 07:06:16,068 INFO L78 Accepts]: Start accepts. Automaton has 67930 states and 85748 transitions. Word has length 181 [2022-01-11 07:06:16,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:06:16,068 INFO L470 AbstractCegarLoop]: Abstraction has 67930 states and 85748 transitions. [2022-01-11 07:06:16,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:06:16,068 INFO L276 IsEmpty]: Start isEmpty. Operand 67930 states and 85748 transitions. [2022-01-11 07:06:16,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-11 07:06:16,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:06:16,090 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] [2022-01-11 07:06:16,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 07:06:16,090 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:06:16,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:06:16,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1556371761, now seen corresponding path program 1 times [2022-01-11 07:06:16,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:06:16,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403723223] [2022-01-11 07:06:16,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:06:16,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:06:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:06:16,196 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 07:06:16,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:06:16,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403723223] [2022-01-11 07:06:16,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403723223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:06:16,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:06:16,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:06:16,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306115241] [2022-01-11 07:06:16,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:06:16,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:06:16,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:06:16,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:06:16,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:06:16,197 INFO L87 Difference]: Start difference. First operand 67930 states and 85748 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)