/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/product-lines/elevator_spec1_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:32:40,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:32:40,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:32:40,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:32:40,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:32:40,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:32:40,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:32:40,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:32:40,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:32:40,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:32:40,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:32:40,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:32:40,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:32:40,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:32:40,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:32:40,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:32:40,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:32:40,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:32:40,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:32:40,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:32:40,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:32:40,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:32:40,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:32:40,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:32:40,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:32:40,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:32:40,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:32:40,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:32:40,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:32:40,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:32:40,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:32:40,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:32:40,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:32:40,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:32:40,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:32:40,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:32:40,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:32:40,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:32:40,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:32:40,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:32:40,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:32:40,180 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 05:32:40,197 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:32:40,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:32:40,198 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:32:40,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:32:40,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:32:40,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:32:40,199 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:32:40,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:32:40,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:32:40,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:32:40,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:32:40,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:32:40,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:32:40,201 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:32:40,201 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:32:40,201 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:32:40,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:32:40,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:32:40,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:32:40,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:32:40,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:32:40,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:32:40,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:32:40,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:32:40,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:32:40,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:32:40,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:32:40,202 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:32:40,202 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:32:40,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:32:40,203 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:32:40,203 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:32:40,203 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:32:40,203 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:32:40,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:32:40,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:32:40,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:32:40,392 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:32:40,392 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:32:40,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product27.cil.c [2022-01-11 05:32:40,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd4f0770a/5c2b8ec85cbe41dc81c66a921bb5f8d5/FLAG0679e30af [2022-01-11 05:32:40,869 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:32:40,869 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product27.cil.c [2022-01-11 05:32:40,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd4f0770a/5c2b8ec85cbe41dc81c66a921bb5f8d5/FLAG0679e30af [2022-01-11 05:32:40,896 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd4f0770a/5c2b8ec85cbe41dc81c66a921bb5f8d5 [2022-01-11 05:32:40,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:32:40,900 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:32:40,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:32:40,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:32:40,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:32:40,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:32:40" (1/1) ... [2022-01-11 05:32:40,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57fcea9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:40, skipping insertion in model container [2022-01-11 05:32:40,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:32:40" (1/1) ... [2022-01-11 05:32:40,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:32:40,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:32:41,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product27.cil.c[35415,35428] [2022-01-11 05:32:41,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:32:41,328 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:32:41,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:32:41,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product27.cil.c[35415,35428] [2022-01-11 05:32:41,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:32:41,431 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:32:41,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product27.cil.c[35415,35428] [2022-01-11 05:32:41,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:32:41,557 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:32:41,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:41 WrapperNode [2022-01-11 05:32:41,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:32:41,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:32:41,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:32:41,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:32:41,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:41" (1/1) ... [2022-01-11 05:32:41,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:41" (1/1) ... [2022-01-11 05:32:41,698 INFO L137 Inliner]: procedures = 97, calls = 343, calls flagged for inlining = 196, calls inlined = 324, statements flattened = 9541 [2022-01-11 05:32:41,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:32:41,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:32:41,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:32:41,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:32:41,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:41" (1/1) ... [2022-01-11 05:32:41,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:41" (1/1) ... [2022-01-11 05:32:41,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:41" (1/1) ... [2022-01-11 05:32:41,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:41" (1/1) ... [2022-01-11 05:32:41,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:41" (1/1) ... [2022-01-11 05:32:41,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:41" (1/1) ... [2022-01-11 05:32:41,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:41" (1/1) ... [2022-01-11 05:32:41,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:32:41,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:32:41,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:32:41,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:32:41,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:41" (1/1) ... [2022-01-11 05:32:41,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:32:41,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:32:41,906 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 05:32:41,912 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 05:32:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:32:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:32:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:32:41,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:32:42,063 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:32:42,064 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:32:45,446 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:32:45,481 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:32:45,481 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:32:45,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:32:45 BoogieIcfgContainer [2022-01-11 05:32:45,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:32:45,486 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:32:45,487 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:32:45,488 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:32:45,489 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:32:45" (1/1) ... [2022-01-11 05:32:46,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:32:46 BasicIcfg [2022-01-11 05:32:46,023 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:32:46,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:32:46,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:32:46,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:32:46,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:32:40" (1/4) ... [2022-01-11 05:32:46,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a193bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:32:46, skipping insertion in model container [2022-01-11 05:32:46,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:32:41" (2/4) ... [2022-01-11 05:32:46,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a193bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:32:46, skipping insertion in model container [2022-01-11 05:32:46,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:32:45" (3/4) ... [2022-01-11 05:32:46,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a193bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:32:46, skipping insertion in model container [2022-01-11 05:32:46,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:32:46" (4/4) ... [2022-01-11 05:32:46,028 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product27.cil.cTransformedIcfg [2022-01-11 05:32:46,032 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:32:46,032 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-11 05:32:46,071 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:32:46,076 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 05:32:46,076 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-11 05:32:46,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 2667 states, 2661 states have (on average 1.8602029312288613) internal successors, (4950), 2666 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:46,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 05:32:46,128 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:46,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:46,129 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:46,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:46,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1500785008, now seen corresponding path program 1 times [2022-01-11 05:32:46,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:46,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162855178] [2022-01-11 05:32:46,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:46,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:46,496 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 05:32:46,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:46,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162855178] [2022-01-11 05:32:46,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162855178] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:46,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:46,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:46,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861654454] [2022-01-11 05:32:46,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:46,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:46,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:46,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:46,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:46,561 INFO L87 Difference]: Start difference. First operand has 2667 states, 2661 states have (on average 1.8602029312288613) internal successors, (4950), 2666 states have internal predecessors, (4950), 0 states have call successors, (0), 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 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:46,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:46,786 INFO L93 Difference]: Finished difference Result 7906 states and 14690 transitions. [2022-01-11 05:32:46,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:46,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-01-11 05:32:46,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:46,823 INFO L225 Difference]: With dead ends: 7906 [2022-01-11 05:32:46,823 INFO L226 Difference]: Without dead ends: 5241 [2022-01-11 05:32:46,834 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 05:32:46,839 INFO L933 BasicCegarLoop]: 9735 mSDtfsCounter, 4911 mSDsluCounter, 4817 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4911 SdHoareTripleChecker+Valid, 14552 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:46,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4911 Valid, 14552 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:46,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5241 states. [2022-01-11 05:32:46,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5241 to 2656. [2022-01-11 05:32:46,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2656 states, 2651 states have (on average 1.8581667295360242) internal successors, (4926), 2655 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:46,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2656 states to 2656 states and 4926 transitions. [2022-01-11 05:32:46,994 INFO L78 Accepts]: Start accepts. Automaton has 2656 states and 4926 transitions. Word has length 64 [2022-01-11 05:32:46,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:46,994 INFO L470 AbstractCegarLoop]: Abstraction has 2656 states and 4926 transitions. [2022-01-11 05:32:46,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:46,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2656 states and 4926 transitions. [2022-01-11 05:32:46,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-11 05:32:46,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:46,997 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] [2022-01-11 05:32:46,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:32:46,997 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:46,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:46,998 INFO L85 PathProgramCache]: Analyzing trace with hash 847501525, now seen corresponding path program 1 times [2022-01-11 05:32:46,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:46,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899917119] [2022-01-11 05:32:46,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:46,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:47,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:47,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:47,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899917119] [2022-01-11 05:32:47,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899917119] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:47,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:47,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:47,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622968535] [2022-01-11 05:32:47,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:47,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:47,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:47,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:47,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:47,128 INFO L87 Difference]: Start difference. First operand 2656 states and 4926 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:47,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:47,328 INFO L93 Difference]: Finished difference Result 7811 states and 14498 transitions. [2022-01-11 05:32:47,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:47,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-01-11 05:32:47,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:47,346 INFO L225 Difference]: With dead ends: 7811 [2022-01-11 05:32:47,346 INFO L226 Difference]: Without dead ends: 5205 [2022-01-11 05:32:47,353 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 05:32:47,354 INFO L933 BasicCegarLoop]: 9598 mSDtfsCounter, 4813 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4813 SdHoareTripleChecker+Valid, 14355 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:47,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4813 Valid, 14355 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:47,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5205 states. [2022-01-11 05:32:47,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5205 to 2656. [2022-01-11 05:32:47,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2656 states, 2651 states have (on average 1.8487363259147491) internal successors, (4901), 2655 states have internal predecessors, (4901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:47,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2656 states to 2656 states and 4901 transitions. [2022-01-11 05:32:47,418 INFO L78 Accepts]: Start accepts. Automaton has 2656 states and 4901 transitions. Word has length 71 [2022-01-11 05:32:47,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:47,419 INFO L470 AbstractCegarLoop]: Abstraction has 2656 states and 4901 transitions. [2022-01-11 05:32:47,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:47,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2656 states and 4901 transitions. [2022-01-11 05:32:47,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-11 05:32:47,431 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:47,431 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] [2022-01-11 05:32:47,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:32:47,432 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:47,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:47,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1078400902, now seen corresponding path program 1 times [2022-01-11 05:32:47,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:47,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496838156] [2022-01-11 05:32:47,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:47,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:47,581 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 05:32:47,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:47,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496838156] [2022-01-11 05:32:47,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496838156] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:47,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:47,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:47,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689749549] [2022-01-11 05:32:47,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:47,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:47,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:47,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:47,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:47,583 INFO L87 Difference]: Start difference. First operand 2656 states and 4901 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:47,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:47,646 INFO L93 Difference]: Finished difference Result 5241 states and 9704 transitions. [2022-01-11 05:32:47,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:47,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-01-11 05:32:47,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:47,655 INFO L225 Difference]: With dead ends: 5241 [2022-01-11 05:32:47,655 INFO L226 Difference]: Without dead ends: 2656 [2022-01-11 05:32:47,662 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 05:32:47,664 INFO L933 BasicCegarLoop]: 4882 mSDtfsCounter, 4890 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4890 SdHoareTripleChecker+Valid, 4889 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:47,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4890 Valid, 4889 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:47,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2022-01-11 05:32:47,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2656. [2022-01-11 05:32:47,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2656 states, 2651 states have (on average 1.8479818936250472) internal successors, (4899), 2655 states have internal predecessors, (4899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:47,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2656 states to 2656 states and 4899 transitions. [2022-01-11 05:32:47,711 INFO L78 Accepts]: Start accepts. Automaton has 2656 states and 4899 transitions. Word has length 74 [2022-01-11 05:32:47,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:47,712 INFO L470 AbstractCegarLoop]: Abstraction has 2656 states and 4899 transitions. [2022-01-11 05:32:47,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:47,712 INFO L276 IsEmpty]: Start isEmpty. Operand 2656 states and 4899 transitions. [2022-01-11 05:32:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-11 05:32:47,715 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:47,715 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] [2022-01-11 05:32:47,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:32:47,715 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:47,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:47,716 INFO L85 PathProgramCache]: Analyzing trace with hash -797411156, now seen corresponding path program 1 times [2022-01-11 05:32:47,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:47,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577632964] [2022-01-11 05:32:47,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:47,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:47,806 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 05:32:47,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:47,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577632964] [2022-01-11 05:32:47,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577632964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:47,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:47,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:47,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920630843] [2022-01-11 05:32:47,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:47,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:47,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:47,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:47,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:47,819 INFO L87 Difference]: Start difference. First operand 2656 states and 4899 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:47,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:47,955 INFO L93 Difference]: Finished difference Result 5205 states and 9631 transitions. [2022-01-11 05:32:47,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:47,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-01-11 05:32:47,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:47,964 INFO L225 Difference]: With dead ends: 5205 [2022-01-11 05:32:47,965 INFO L226 Difference]: Without dead ends: 2656 [2022-01-11 05:32:47,968 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 05:32:47,969 INFO L933 BasicCegarLoop]: 4804 mSDtfsCounter, 4871 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4871 SdHoareTripleChecker+Valid, 4819 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:47,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4871 Valid, 4819 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:47,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2022-01-11 05:32:48,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2656. [2022-01-11 05:32:48,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2656 states, 2651 states have (on average 1.8442097321765372) internal successors, (4889), 2655 states have internal predecessors, (4889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:48,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2656 states to 2656 states and 4889 transitions. [2022-01-11 05:32:48,019 INFO L78 Accepts]: Start accepts. Automaton has 2656 states and 4889 transitions. Word has length 76 [2022-01-11 05:32:48,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:48,019 INFO L470 AbstractCegarLoop]: Abstraction has 2656 states and 4889 transitions. [2022-01-11 05:32:48,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:48,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2656 states and 4889 transitions. [2022-01-11 05:32:48,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-11 05:32:48,021 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:48,021 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] [2022-01-11 05:32:48,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:32:48,022 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:48,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:48,022 INFO L85 PathProgramCache]: Analyzing trace with hash 732603298, now seen corresponding path program 1 times [2022-01-11 05:32:48,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:48,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722948176] [2022-01-11 05:32:48,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:48,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:48,107 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 05:32:48,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:48,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722948176] [2022-01-11 05:32:48,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722948176] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:48,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:48,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:48,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797365667] [2022-01-11 05:32:48,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:48,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:48,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:48,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:48,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:48,109 INFO L87 Difference]: Start difference. First operand 2656 states and 4889 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:48,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:48,244 INFO L93 Difference]: Finished difference Result 6558 states and 12126 transitions. [2022-01-11 05:32:48,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:48,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2022-01-11 05:32:48,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:48,264 INFO L225 Difference]: With dead ends: 6558 [2022-01-11 05:32:48,264 INFO L226 Difference]: Without dead ends: 5238 [2022-01-11 05:32:48,268 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 05:32:48,269 INFO L933 BasicCegarLoop]: 7292 mSDtfsCounter, 4867 mSDsluCounter, 4797 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4867 SdHoareTripleChecker+Valid, 12089 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:48,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4867 Valid, 12089 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:48,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5238 states. [2022-01-11 05:32:48,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5238 to 5238. [2022-01-11 05:32:48,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5238 states, 5233 states have (on average 1.8507548251480985) internal successors, (9685), 5237 states have internal predecessors, (9685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:48,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5238 states to 5238 states and 9685 transitions. [2022-01-11 05:32:48,417 INFO L78 Accepts]: Start accepts. Automaton has 5238 states and 9685 transitions. Word has length 78 [2022-01-11 05:32:48,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:48,420 INFO L470 AbstractCegarLoop]: Abstraction has 5238 states and 9685 transitions. [2022-01-11 05:32:48,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:48,420 INFO L276 IsEmpty]: Start isEmpty. Operand 5238 states and 9685 transitions. [2022-01-11 05:32:48,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:32:48,424 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:48,424 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] [2022-01-11 05:32:48,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:32:48,425 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:48,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:48,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1235880968, now seen corresponding path program 1 times [2022-01-11 05:32:48,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:48,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111837411] [2022-01-11 05:32:48,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:48,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:48,516 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 05:32:48,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:48,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111837411] [2022-01-11 05:32:48,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111837411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:48,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:48,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:48,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439500368] [2022-01-11 05:32:48,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:48,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:48,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:48,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:48,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:48,518 INFO L87 Difference]: Start difference. First operand 5238 states and 9685 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:48,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:48,706 INFO L93 Difference]: Finished difference Result 12960 states and 24026 transitions. [2022-01-11 05:32:48,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:48,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-01-11 05:32:48,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:48,745 INFO L225 Difference]: With dead ends: 12960 [2022-01-11 05:32:48,746 INFO L226 Difference]: Without dead ends: 10344 [2022-01-11 05:32:48,754 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 05:32:48,756 INFO L933 BasicCegarLoop]: 4886 mSDtfsCounter, 4805 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4805 SdHoareTripleChecker+Valid, 9686 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:48,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4805 Valid, 9686 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:48,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10344 states. [2022-01-11 05:32:48,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10344 to 10342. [2022-01-11 05:32:48,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10342 states, 10337 states have (on average 1.8549869401180226) internal successors, (19175), 10341 states have internal predecessors, (19175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:49,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10342 states to 10342 states and 19175 transitions. [2022-01-11 05:32:49,020 INFO L78 Accepts]: Start accepts. Automaton has 10342 states and 19175 transitions. Word has length 79 [2022-01-11 05:32:49,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:49,021 INFO L470 AbstractCegarLoop]: Abstraction has 10342 states and 19175 transitions. [2022-01-11 05:32:49,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:49,021 INFO L276 IsEmpty]: Start isEmpty. Operand 10342 states and 19175 transitions. [2022-01-11 05:32:49,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:32:49,035 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:49,036 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] [2022-01-11 05:32:49,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:32:49,037 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:49,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:49,038 INFO L85 PathProgramCache]: Analyzing trace with hash 60869843, now seen corresponding path program 1 times [2022-01-11 05:32:49,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:49,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168485815] [2022-01-11 05:32:49,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:49,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:49,140 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 05:32:49,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:49,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168485815] [2022-01-11 05:32:49,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168485815] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:49,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:49,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:49,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749785605] [2022-01-11 05:32:49,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:49,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:49,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:49,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:49,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:49,142 INFO L87 Difference]: Start difference. First operand 10342 states and 19175 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:49,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:49,958 INFO L93 Difference]: Finished difference Result 61268 states and 113845 transitions. [2022-01-11 05:32:49,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:32:49,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-01-11 05:32:49,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:50,193 INFO L225 Difference]: With dead ends: 61268 [2022-01-11 05:32:50,194 INFO L226 Difference]: Without dead ends: 50955 [2022-01-11 05:32:50,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:32:50,218 INFO L933 BasicCegarLoop]: 19103 mSDtfsCounter, 14368 mSDsluCounter, 23888 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14368 SdHoareTripleChecker+Valid, 42991 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:50,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14368 Valid, 42991 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:50,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50955 states. [2022-01-11 05:32:50,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50955 to 10330. [2022-01-11 05:32:50,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10330 states, 10325 states have (on average 1.855593220338983) internal successors, (19159), 10329 states have internal predecessors, (19159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:50,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10330 states to 10330 states and 19159 transitions. [2022-01-11 05:32:50,686 INFO L78 Accepts]: Start accepts. Automaton has 10330 states and 19159 transitions. Word has length 79 [2022-01-11 05:32:50,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:50,687 INFO L470 AbstractCegarLoop]: Abstraction has 10330 states and 19159 transitions. [2022-01-11 05:32:50,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:50,687 INFO L276 IsEmpty]: Start isEmpty. Operand 10330 states and 19159 transitions. [2022-01-11 05:32:50,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 05:32:50,695 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:50,695 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] [2022-01-11 05:32:50,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:32:50,695 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:50,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:50,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1938032407, now seen corresponding path program 1 times [2022-01-11 05:32:50,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:50,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987646129] [2022-01-11 05:32:50,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:50,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:50,785 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 05:32:50,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:50,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987646129] [2022-01-11 05:32:50,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987646129] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:50,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:50,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:32:50,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95199977] [2022-01-11 05:32:50,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:50,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:32:50,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:50,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:32:50,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:32:50,787 INFO L87 Difference]: Start difference. First operand 10330 states and 19159 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:52,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:52,159 INFO L93 Difference]: Finished difference Result 51030 states and 94829 transitions. [2022-01-11 05:32:52,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:32:52,159 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-01-11 05:32:52,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:52,278 INFO L225 Difference]: With dead ends: 51030 [2022-01-11 05:32:52,278 INFO L226 Difference]: Without dead ends: 40729 [2022-01-11 05:32:52,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:32:52,303 INFO L933 BasicCegarLoop]: 18993 mSDtfsCounter, 28682 mSDsluCounter, 18953 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28682 SdHoareTripleChecker+Valid, 37946 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:52,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28682 Valid, 37946 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:52,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40729 states. [2022-01-11 05:32:52,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40729 to 10330. [2022-01-11 05:32:52,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10330 states, 10325 states have (on average 1.8539467312348668) internal successors, (19142), 10329 states have internal predecessors, (19142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:52,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10330 states to 10330 states and 19142 transitions. [2022-01-11 05:32:52,850 INFO L78 Accepts]: Start accepts. Automaton has 10330 states and 19142 transitions. Word has length 81 [2022-01-11 05:32:52,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:52,850 INFO L470 AbstractCegarLoop]: Abstraction has 10330 states and 19142 transitions. [2022-01-11 05:32:52,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:52,850 INFO L276 IsEmpty]: Start isEmpty. Operand 10330 states and 19142 transitions. [2022-01-11 05:32:52,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 05:32:52,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:52,856 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] [2022-01-11 05:32:52,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:32:52,857 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:52,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:52,857 INFO L85 PathProgramCache]: Analyzing trace with hash -2038944374, now seen corresponding path program 1 times [2022-01-11 05:32:52,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:52,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721024287] [2022-01-11 05:32:52,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:52,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:52,918 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 05:32:52,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:52,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721024287] [2022-01-11 05:32:52,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721024287] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:52,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:52,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:32:52,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969566103] [2022-01-11 05:32:52,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:52,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:32:52,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:52,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:32:52,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:32:52,920 INFO L87 Difference]: Start difference. First operand 10330 states and 19142 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:53,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:53,694 INFO L93 Difference]: Finished difference Result 41032 states and 76149 transitions. [2022-01-11 05:32:53,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:32:53,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-01-11 05:32:53,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:53,749 INFO L225 Difference]: With dead ends: 41032 [2022-01-11 05:32:53,749 INFO L226 Difference]: Without dead ends: 30725 [2022-01-11 05:32:53,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:53,767 INFO L933 BasicCegarLoop]: 4874 mSDtfsCounter, 14405 mSDsluCounter, 14361 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14405 SdHoareTripleChecker+Valid, 19235 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:53,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14405 Valid, 19235 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:53,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30725 states. [2022-01-11 05:32:54,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30725 to 10338. [2022-01-11 05:32:54,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10338 states, 10333 states have (on average 1.8529952579115456) internal successors, (19147), 10337 states have internal predecessors, (19147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:54,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10338 states to 10338 states and 19147 transitions. [2022-01-11 05:32:54,174 INFO L78 Accepts]: Start accepts. Automaton has 10338 states and 19147 transitions. Word has length 81 [2022-01-11 05:32:54,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:54,174 INFO L470 AbstractCegarLoop]: Abstraction has 10338 states and 19147 transitions. [2022-01-11 05:32:54,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:54,174 INFO L276 IsEmpty]: Start isEmpty. Operand 10338 states and 19147 transitions. [2022-01-11 05:32:54,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-11 05:32:54,180 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:54,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:54,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:32:54,181 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:54,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:54,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1573379272, now seen corresponding path program 1 times [2022-01-11 05:32:54,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:54,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639697699] [2022-01-11 05:32:54,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:54,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:54,270 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 05:32:54,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:54,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639697699] [2022-01-11 05:32:54,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639697699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:54,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:54,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:32:54,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323317198] [2022-01-11 05:32:54,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:54,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:32:54,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:54,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:32:54,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:32:54,271 INFO L87 Difference]: Start difference. First operand 10338 states and 19147 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:55,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:55,509 INFO L93 Difference]: Finished difference Result 51117 states and 94905 transitions. [2022-01-11 05:32:55,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:32:55,510 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-01-11 05:32:55,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:55,574 INFO L225 Difference]: With dead ends: 51117 [2022-01-11 05:32:55,575 INFO L226 Difference]: Without dead ends: 40795 [2022-01-11 05:32:55,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:32:55,592 INFO L933 BasicCegarLoop]: 19062 mSDtfsCounter, 23942 mSDsluCounter, 19068 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23942 SdHoareTripleChecker+Valid, 38130 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:55,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23942 Valid, 38130 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:55,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40795 states. [2022-01-11 05:32:56,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40795 to 10330. [2022-01-11 05:32:56,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10330 states, 10325 states have (on average 1.8531719128329298) internal successors, (19134), 10329 states have internal predecessors, (19134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:56,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10330 states to 10330 states and 19134 transitions. [2022-01-11 05:32:56,198 INFO L78 Accepts]: Start accepts. Automaton has 10330 states and 19134 transitions. Word has length 82 [2022-01-11 05:32:56,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:56,199 INFO L470 AbstractCegarLoop]: Abstraction has 10330 states and 19134 transitions. [2022-01-11 05:32:56,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:56,199 INFO L276 IsEmpty]: Start isEmpty. Operand 10330 states and 19134 transitions. [2022-01-11 05:32:56,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-11 05:32:56,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:56,205 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] [2022-01-11 05:32:56,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:32:56,206 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:56,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:56,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1816995650, now seen corresponding path program 1 times [2022-01-11 05:32:56,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:56,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161876413] [2022-01-11 05:32:56,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:56,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:56,266 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 05:32:56,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:56,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161876413] [2022-01-11 05:32:56,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161876413] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:56,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:56,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:56,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971761891] [2022-01-11 05:32:56,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:56,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:56,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:56,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:56,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:56,269 INFO L87 Difference]: Start difference. First operand 10330 states and 19134 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:57,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:57,291 INFO L93 Difference]: Finished difference Result 40837 states and 75820 transitions. [2022-01-11 05:32:57,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:32:57,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-01-11 05:32:57,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:57,346 INFO L225 Difference]: With dead ends: 40837 [2022-01-11 05:32:57,346 INFO L226 Difference]: Without dead ends: 30554 [2022-01-11 05:32:57,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:32:57,367 INFO L933 BasicCegarLoop]: 4812 mSDtfsCounter, 23898 mSDsluCounter, 14198 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23898 SdHoareTripleChecker+Valid, 19010 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:57,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23898 Valid, 19010 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:57,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30554 states. [2022-01-11 05:32:57,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30554 to 10356. [2022-01-11 05:32:57,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10356 states, 10351 states have (on average 1.8521881943773548) internal successors, (19172), 10355 states have internal predecessors, (19172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:57,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10356 states to 10356 states and 19172 transitions. [2022-01-11 05:32:57,989 INFO L78 Accepts]: Start accepts. Automaton has 10356 states and 19172 transitions. Word has length 83 [2022-01-11 05:32:57,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:57,990 INFO L470 AbstractCegarLoop]: Abstraction has 10356 states and 19172 transitions. [2022-01-11 05:32:57,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:57,990 INFO L276 IsEmpty]: Start isEmpty. Operand 10356 states and 19172 transitions. [2022-01-11 05:32:57,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-11 05:32:57,996 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:57,996 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] [2022-01-11 05:32:57,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:32:57,996 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:57,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:57,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1342769554, now seen corresponding path program 1 times [2022-01-11 05:32:57,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:57,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559668287] [2022-01-11 05:32:57,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:57,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:58,066 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 05:32:58,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:58,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559668287] [2022-01-11 05:32:58,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559668287] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:58,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:58,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:32:58,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860105124] [2022-01-11 05:32:58,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:58,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:32:58,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:58,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:32:58,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:32:58,068 INFO L87 Difference]: Start difference. First operand 10356 states and 19172 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:58,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:58,703 INFO L93 Difference]: Finished difference Result 23068 states and 42793 transitions. [2022-01-11 05:32:58,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:32:58,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-01-11 05:32:58,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:58,724 INFO L225 Difference]: With dead ends: 23068 [2022-01-11 05:32:58,724 INFO L226 Difference]: Without dead ends: 15323 [2022-01-11 05:32:58,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:32:58,733 INFO L933 BasicCegarLoop]: 4805 mSDtfsCounter, 14234 mSDsluCounter, 4793 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14234 SdHoareTripleChecker+Valid, 9598 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:58,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14234 Valid, 9598 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:58,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15323 states. [2022-01-11 05:32:59,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15323 to 10276. [2022-01-11 05:32:59,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10276 states, 10271 states have (on average 1.8539577451075844) internal successors, (19042), 10275 states have internal predecessors, (19042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:59,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10276 states to 10276 states and 19042 transitions. [2022-01-11 05:32:59,240 INFO L78 Accepts]: Start accepts. Automaton has 10276 states and 19042 transitions. Word has length 85 [2022-01-11 05:32:59,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:59,240 INFO L470 AbstractCegarLoop]: Abstraction has 10276 states and 19042 transitions. [2022-01-11 05:32:59,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:59,241 INFO L276 IsEmpty]: Start isEmpty. Operand 10276 states and 19042 transitions. [2022-01-11 05:32:59,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-11 05:32:59,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:59,246 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] [2022-01-11 05:32:59,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:32:59,247 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:59,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:59,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1209830122, now seen corresponding path program 1 times [2022-01-11 05:32:59,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:59,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518269844] [2022-01-11 05:32:59,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:59,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:59,325 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 05:32:59,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:59,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518269844] [2022-01-11 05:32:59,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518269844] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:59,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:59,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:59,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489028852] [2022-01-11 05:32:59,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:59,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:59,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:59,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:59,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:59,327 INFO L87 Difference]: Start difference. First operand 10276 states and 19042 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:59,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:59,597 INFO L93 Difference]: Finished difference Result 15359 states and 28482 transitions. [2022-01-11 05:32:59,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:59,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-11 05:32:59,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:59,604 INFO L225 Difference]: With dead ends: 15359 [2022-01-11 05:32:59,604 INFO L226 Difference]: Without dead ends: 5184 [2022-01-11 05:32:59,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:59,611 INFO L933 BasicCegarLoop]: 4812 mSDtfsCounter, 14305 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14305 SdHoareTripleChecker+Valid, 4850 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:59,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14305 Valid, 4850 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:59,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5184 states. [2022-01-11 05:32:59,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5184 to 5184. [2022-01-11 05:32:59,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5184 states, 5180 states have (on average 1.8492277992277992) internal successors, (9579), 5183 states have internal predecessors, (9579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:59,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 9579 transitions. [2022-01-11 05:32:59,795 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 9579 transitions. Word has length 86 [2022-01-11 05:32:59,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:59,796 INFO L470 AbstractCegarLoop]: Abstraction has 5184 states and 9579 transitions. [2022-01-11 05:32:59,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:59,796 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 9579 transitions. [2022-01-11 05:32:59,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 05:32:59,798 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:59,798 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] [2022-01-11 05:32:59,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:32:59,799 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:59,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:59,799 INFO L85 PathProgramCache]: Analyzing trace with hash 961337830, now seen corresponding path program 1 times [2022-01-11 05:32:59,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:59,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723479885] [2022-01-11 05:32:59,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:59,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:59,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:59,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:59,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723479885] [2022-01-11 05:32:59,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723479885] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:59,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:59,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:32:59,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649104990] [2022-01-11 05:32:59,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:59,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:32:59,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:59,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:32:59,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:32:59,875 INFO L87 Difference]: Start difference. First operand 5184 states and 9579 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:00,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:00,088 INFO L93 Difference]: Finished difference Result 10255 states and 19001 transitions. [2022-01-11 05:33:00,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:33:00,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 05:33:00,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:00,096 INFO L225 Difference]: With dead ends: 10255 [2022-01-11 05:33:00,096 INFO L226 Difference]: Without dead ends: 5172 [2022-01-11 05:33:00,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:00,102 INFO L933 BasicCegarLoop]: 4795 mSDtfsCounter, 9510 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9510 SdHoareTripleChecker+Valid, 4884 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:00,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9510 Valid, 4884 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:00,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5172 states. [2022-01-11 05:33:00,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5172 to 5172. [2022-01-11 05:33:00,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5172 states, 5168 states have (on average 1.8496517027863777) internal successors, (9559), 5171 states have internal predecessors, (9559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:00,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 9559 transitions. [2022-01-11 05:33:00,357 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 9559 transitions. Word has length 88 [2022-01-11 05:33:00,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:00,357 INFO L470 AbstractCegarLoop]: Abstraction has 5172 states and 9559 transitions. [2022-01-11 05:33:00,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:00,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 9559 transitions. [2022-01-11 05:33:00,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 05:33:00,360 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:00,360 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] [2022-01-11 05:33:00,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:33:00,360 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:00,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:00,361 INFO L85 PathProgramCache]: Analyzing trace with hash -220456702, now seen corresponding path program 1 times [2022-01-11 05:33:00,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:00,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161620675] [2022-01-11 05:33:00,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:00,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:00,422 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 05:33:00,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:00,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161620675] [2022-01-11 05:33:00,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161620675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:00,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:00,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:33:00,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126842877] [2022-01-11 05:33:00,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:00,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:33:00,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:00,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:33:00,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:33:00,423 INFO L87 Difference]: Start difference. First operand 5172 states and 9559 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:00,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:00,674 INFO L93 Difference]: Finished difference Result 10281 states and 19027 transitions. [2022-01-11 05:33:00,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:33:00,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 05:33:00,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:00,683 INFO L225 Difference]: With dead ends: 10281 [2022-01-11 05:33:00,683 INFO L226 Difference]: Without dead ends: 5234 [2022-01-11 05:33:00,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:33:00,688 INFO L933 BasicCegarLoop]: 4818 mSDtfsCounter, 14330 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14330 SdHoareTripleChecker+Valid, 4934 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:00,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14330 Valid, 4934 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:00,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5234 states. [2022-01-11 05:33:00,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5234 to 5172. [2022-01-11 05:33:00,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5172 states, 5168 states have (on average 1.849264705882353) internal successors, (9557), 5171 states have internal predecessors, (9557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:00,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 9557 transitions. [2022-01-11 05:33:00,886 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 9557 transitions. Word has length 88 [2022-01-11 05:33:00,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:00,886 INFO L470 AbstractCegarLoop]: Abstraction has 5172 states and 9557 transitions. [2022-01-11 05:33:00,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:00,886 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 9557 transitions. [2022-01-11 05:33:00,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-11 05:33:00,889 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:00,889 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] [2022-01-11 05:33:00,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:33:00,889 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:00,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:00,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1782167383, now seen corresponding path program 1 times [2022-01-11 05:33:00,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:00,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104334233] [2022-01-11 05:33:00,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:00,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:00,944 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 05:33:00,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:00,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104334233] [2022-01-11 05:33:00,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104334233] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:00,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:00,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:33:00,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580930294] [2022-01-11 05:33:00,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:00,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:33:00,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:00,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:33:00,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:33:00,945 INFO L87 Difference]: Start difference. First operand 5172 states and 9557 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:01,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:01,675 INFO L93 Difference]: Finished difference Result 20401 states and 37829 transitions. [2022-01-11 05:33:01,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:33:01,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2022-01-11 05:33:01,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:01,700 INFO L225 Difference]: With dead ends: 20401 [2022-01-11 05:33:01,701 INFO L226 Difference]: Without dead ends: 15354 [2022-01-11 05:33:01,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:33:01,711 INFO L933 BasicCegarLoop]: 9519 mSDtfsCounter, 28572 mSDsluCounter, 14262 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28572 SdHoareTripleChecker+Valid, 23781 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:01,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28572 Valid, 23781 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:01,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15354 states. [2022-01-11 05:33:01,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15354 to 5192. [2022-01-11 05:33:01,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5188 states have (on average 1.847532767925983) internal successors, (9585), 5191 states have internal predecessors, (9585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:01,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 9585 transitions. [2022-01-11 05:33:01,970 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 9585 transitions. Word has length 89 [2022-01-11 05:33:01,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:01,970 INFO L470 AbstractCegarLoop]: Abstraction has 5192 states and 9585 transitions. [2022-01-11 05:33:01,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:01,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 9585 transitions. [2022-01-11 05:33:01,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-11 05:33:01,974 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:01,974 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] [2022-01-11 05:33:01,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 05:33:01,975 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:01,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:01,975 INFO L85 PathProgramCache]: Analyzing trace with hash -169419682, now seen corresponding path program 1 times [2022-01-11 05:33:01,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:01,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724477375] [2022-01-11 05:33:01,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:01,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:02,049 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 05:33:02,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:02,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724477375] [2022-01-11 05:33:02,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724477375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:02,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:02,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:33:02,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182650838] [2022-01-11 05:33:02,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:02,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:02,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:02,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:02,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:02,051 INFO L87 Difference]: Start difference. First operand 5192 states and 9585 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:02,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:02,340 INFO L93 Difference]: Finished difference Result 9110 states and 16818 transitions. [2022-01-11 05:33:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:33:02,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-01-11 05:33:02,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:02,348 INFO L225 Difference]: With dead ends: 9110 [2022-01-11 05:33:02,348 INFO L226 Difference]: Without dead ends: 5221 [2022-01-11 05:33:02,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:02,353 INFO L933 BasicCegarLoop]: 4769 mSDtfsCounter, 4825 mSDsluCounter, 9534 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4825 SdHoareTripleChecker+Valid, 14303 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:02,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4825 Valid, 14303 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:33:02,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2022-01-11 05:33:02,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 5189. [2022-01-11 05:33:02,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5185 states have (on average 1.846480231436837) internal successors, (9574), 5188 states have internal predecessors, (9574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:02,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 9574 transitions. [2022-01-11 05:33:02,585 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 9574 transitions. Word has length 90 [2022-01-11 05:33:02,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:02,585 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 9574 transitions. [2022-01-11 05:33:02,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:02,585 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 9574 transitions. [2022-01-11 05:33:02,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-11 05:33:02,588 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:02,589 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] [2022-01-11 05:33:02,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 05:33:02,589 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:02,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:02,589 INFO L85 PathProgramCache]: Analyzing trace with hash -863468257, now seen corresponding path program 1 times [2022-01-11 05:33:02,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:02,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426531867] [2022-01-11 05:33:02,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:02,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:02,637 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 05:33:02,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:02,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426531867] [2022-01-11 05:33:02,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426531867] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:02,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:02,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:02,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346108526] [2022-01-11 05:33:02,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:02,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:33:02,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:02,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:33:02,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:33:02,639 INFO L87 Difference]: Start difference. First operand 5189 states and 9574 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:03,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:03,702 INFO L93 Difference]: Finished difference Result 14557 states and 26960 transitions. [2022-01-11 05:33:03,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:33:03,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-11 05:33:03,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:03,717 INFO L225 Difference]: With dead ends: 14557 [2022-01-11 05:33:03,718 INFO L226 Difference]: Without dead ends: 9526 [2022-01-11 05:33:03,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:03,725 INFO L933 BasicCegarLoop]: 4826 mSDtfsCounter, 12704 mSDsluCounter, 4087 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12704 SdHoareTripleChecker+Valid, 8913 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:03,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12704 Valid, 8913 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:33:03,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9526 states. [2022-01-11 05:33:03,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9526 to 5189. [2022-01-11 05:33:03,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5185 states have (on average 1.8233365477338477) internal successors, (9454), 5188 states have internal predecessors, (9454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:03,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 9454 transitions. [2022-01-11 05:33:03,994 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 9454 transitions. Word has length 91 [2022-01-11 05:33:03,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:03,995 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 9454 transitions. [2022-01-11 05:33:03,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:03,995 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 9454 transitions. [2022-01-11 05:33:03,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 05:33:03,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:03,997 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] [2022-01-11 05:33:03,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 05:33:03,998 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:03,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:03,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1356794753, now seen corresponding path program 1 times [2022-01-11 05:33:03,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:03,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111430311] [2022-01-11 05:33:03,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:03,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:04,081 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 05:33:04,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:04,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111430311] [2022-01-11 05:33:04,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111430311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:04,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:04,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:33:04,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622030758] [2022-01-11 05:33:04,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:04,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:33:04,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:04,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:33:04,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:33:04,083 INFO L87 Difference]: Start difference. First operand 5189 states and 9454 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:07,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:07,809 INFO L93 Difference]: Finished difference Result 45091 states and 82811 transitions. [2022-01-11 05:33:07,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:33:07,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 05:33:07,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:07,864 INFO L225 Difference]: With dead ends: 45091 [2022-01-11 05:33:07,864 INFO L226 Difference]: Without dead ends: 40096 [2022-01-11 05:33:07,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-01-11 05:33:07,874 INFO L933 BasicCegarLoop]: 12628 mSDtfsCounter, 35331 mSDsluCounter, 40312 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35331 SdHoareTripleChecker+Valid, 52940 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:07,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35331 Valid, 52940 Invalid, 1602 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [146 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-11 05:33:07,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40096 states. [2022-01-11 05:33:08,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40096 to 10281. [2022-01-11 05:33:08,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10281 states, 10277 states have (on average 1.8276734455580421) internal successors, (18783), 10280 states have internal predecessors, (18783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:08,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10281 states to 10281 states and 18783 transitions. [2022-01-11 05:33:08,534 INFO L78 Accepts]: Start accepts. Automaton has 10281 states and 18783 transitions. Word has length 99 [2022-01-11 05:33:08,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:08,535 INFO L470 AbstractCegarLoop]: Abstraction has 10281 states and 18783 transitions. [2022-01-11 05:33:08,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:08,535 INFO L276 IsEmpty]: Start isEmpty. Operand 10281 states and 18783 transitions. [2022-01-11 05:33:08,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 05:33:08,540 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:08,540 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] [2022-01-11 05:33:08,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 05:33:08,541 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:08,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:08,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1480868000, now seen corresponding path program 1 times [2022-01-11 05:33:08,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:08,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700739349] [2022-01-11 05:33:08,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:08,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:08,674 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 05:33:08,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:08,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700739349] [2022-01-11 05:33:08,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700739349] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:08,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:08,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:33:08,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427674684] [2022-01-11 05:33:08,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:08,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:33:08,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:08,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:33:08,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:33:08,676 INFO L87 Difference]: Start difference. First operand 10281 states and 18783 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:12,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:12,337 INFO L93 Difference]: Finished difference Result 61593 states and 113993 transitions. [2022-01-11 05:33:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:33:12,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 05:33:12,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:12,426 INFO L225 Difference]: With dead ends: 61593 [2022-01-11 05:33:12,426 INFO L226 Difference]: Without dead ends: 51544 [2022-01-11 05:33:12,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:33:12,448 INFO L933 BasicCegarLoop]: 4853 mSDtfsCounter, 44573 mSDsluCounter, 23236 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44573 SdHoareTripleChecker+Valid, 28089 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:12,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44573 Valid, 28089 Invalid, 1236 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [503 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-11 05:33:12,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51544 states. [2022-01-11 05:33:13,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51544 to 10201. [2022-01-11 05:33:13,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10201 states, 10197 states have (on average 1.7874865156418553) internal successors, (18227), 10200 states have internal predecessors, (18227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:13,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10201 states to 10201 states and 18227 transitions. [2022-01-11 05:33:13,384 INFO L78 Accepts]: Start accepts. Automaton has 10201 states and 18227 transitions. Word has length 99 [2022-01-11 05:33:13,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:13,385 INFO L470 AbstractCegarLoop]: Abstraction has 10201 states and 18227 transitions. [2022-01-11 05:33:13,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:13,385 INFO L276 IsEmpty]: Start isEmpty. Operand 10201 states and 18227 transitions. [2022-01-11 05:33:13,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-11 05:33:13,390 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:13,390 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] [2022-01-11 05:33:13,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 05:33:13,391 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:13,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:13,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1661211102, now seen corresponding path program 1 times [2022-01-11 05:33:13,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:13,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227419934] [2022-01-11 05:33:13,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:13,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:13,463 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 05:33:13,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:13,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227419934] [2022-01-11 05:33:13,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227419934] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:13,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:13,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-11 05:33:13,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702937934] [2022-01-11 05:33:13,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:13,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:33:13,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:13,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:33:13,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:33:13,465 INFO L87 Difference]: Start difference. First operand 10201 states and 18227 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:16,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:16,130 INFO L93 Difference]: Finished difference Result 47791 states and 85668 transitions. [2022-01-11 05:33:16,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:33:16,130 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-01-11 05:33:16,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:16,193 INFO L225 Difference]: With dead ends: 47791 [2022-01-11 05:33:16,194 INFO L226 Difference]: Without dead ends: 37784 [2022-01-11 05:33:16,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-01-11 05:33:16,210 INFO L933 BasicCegarLoop]: 15876 mSDtfsCounter, 27465 mSDsluCounter, 36558 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27465 SdHoareTripleChecker+Valid, 52434 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:16,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27465 Valid, 52434 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:16,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37784 states. [2022-01-11 05:33:17,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37784 to 10237. [2022-01-11 05:33:17,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10237 states, 10233 states have (on average 1.7855956220072315) internal successors, (18272), 10236 states have internal predecessors, (18272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10237 states to 10237 states and 18272 transitions. [2022-01-11 05:33:17,137 INFO L78 Accepts]: Start accepts. Automaton has 10237 states and 18272 transitions. Word has length 100 [2022-01-11 05:33:17,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:17,138 INFO L470 AbstractCegarLoop]: Abstraction has 10237 states and 18272 transitions. [2022-01-11 05:33:17,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,138 INFO L276 IsEmpty]: Start isEmpty. Operand 10237 states and 18272 transitions. [2022-01-11 05:33:17,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-11 05:33:17,144 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:17,144 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] [2022-01-11 05:33:17,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 05:33:17,144 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:17,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:17,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1185365205, now seen corresponding path program 1 times [2022-01-11 05:33:17,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:17,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635031275] [2022-01-11 05:33:17,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:17,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:17,198 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 05:33:17,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:17,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635031275] [2022-01-11 05:33:17,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635031275] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:17,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:17,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:33:17,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367755001] [2022-01-11 05:33:17,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:17,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:17,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:17,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:17,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:17,199 INFO L87 Difference]: Start difference. First operand 10237 states and 18272 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:19,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:19,991 INFO L93 Difference]: Finished difference Result 39549 states and 71520 transitions. [2022-01-11 05:33:19,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:33:19,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-11 05:33:19,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:20,046 INFO L225 Difference]: With dead ends: 39549 [2022-01-11 05:33:20,047 INFO L226 Difference]: Without dead ends: 29674 [2022-01-11 05:33:20,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:33:20,061 INFO L933 BasicCegarLoop]: 10102 mSDtfsCounter, 16397 mSDsluCounter, 13633 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16397 SdHoareTripleChecker+Valid, 23735 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:20,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16397 Valid, 23735 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:33:20,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29674 states. [2022-01-11 05:33:20,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29674 to 10261. [2022-01-11 05:33:20,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10261 states, 10257 states have (on average 1.783757433947548) internal successors, (18296), 10260 states have internal predecessors, (18296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:20,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10261 states to 10261 states and 18296 transitions. [2022-01-11 05:33:20,865 INFO L78 Accepts]: Start accepts. Automaton has 10261 states and 18296 transitions. Word has length 101 [2022-01-11 05:33:20,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:20,865 INFO L470 AbstractCegarLoop]: Abstraction has 10261 states and 18296 transitions. [2022-01-11 05:33:20,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:20,865 INFO L276 IsEmpty]: Start isEmpty. Operand 10261 states and 18296 transitions. [2022-01-11 05:33:20,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-11 05:33:20,870 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:20,870 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] [2022-01-11 05:33:20,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 05:33:20,871 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:20,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:20,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1678159241, now seen corresponding path program 1 times [2022-01-11 05:33:20,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:20,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074766387] [2022-01-11 05:33:20,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:20,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:20,952 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 05:33:20,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:20,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074766387] [2022-01-11 05:33:20,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074766387] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:20,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:20,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:33:20,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850394975] [2022-01-11 05:33:20,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:20,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:33:20,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:20,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:33:20,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:33:20,953 INFO L87 Difference]: Start difference. First operand 10261 states and 18296 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:22,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:22,241 INFO L93 Difference]: Finished difference Result 25378 states and 45355 transitions. [2022-01-11 05:33:22,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:33:22,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-11 05:33:22,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:22,268 INFO L225 Difference]: With dead ends: 25378 [2022-01-11 05:33:22,268 INFO L226 Difference]: Without dead ends: 15215 [2022-01-11 05:33:22,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:33:22,281 INFO L933 BasicCegarLoop]: 6836 mSDtfsCounter, 13616 mSDsluCounter, 9248 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13616 SdHoareTripleChecker+Valid, 16084 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:22,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13616 Valid, 16084 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:33:22,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15215 states. [2022-01-11 05:33:23,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15215 to 10195. [2022-01-11 05:33:23,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10195 states, 10191 states have (on average 1.7859876361495437) internal successors, (18201), 10194 states have internal predecessors, (18201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:23,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10195 states to 10195 states and 18201 transitions. [2022-01-11 05:33:23,103 INFO L78 Accepts]: Start accepts. Automaton has 10195 states and 18201 transitions. Word has length 101 [2022-01-11 05:33:23,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:23,103 INFO L470 AbstractCegarLoop]: Abstraction has 10195 states and 18201 transitions. [2022-01-11 05:33:23,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:23,103 INFO L276 IsEmpty]: Start isEmpty. Operand 10195 states and 18201 transitions. [2022-01-11 05:33:23,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-11 05:33:23,109 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:23,109 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] [2022-01-11 05:33:23,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 05:33:23,109 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:23,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:23,110 INFO L85 PathProgramCache]: Analyzing trace with hash 447359243, now seen corresponding path program 1 times [2022-01-11 05:33:23,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:23,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599833866] [2022-01-11 05:33:23,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:23,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:23,170 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 05:33:23,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:23,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599833866] [2022-01-11 05:33:23,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599833866] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:23,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:23,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:23,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223687979] [2022-01-11 05:33:23,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:23,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:33:23,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:23,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:33:23,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:33:23,171 INFO L87 Difference]: Start difference. First operand 10195 states and 18201 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:25,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:25,540 INFO L93 Difference]: Finished difference Result 34371 states and 62395 transitions. [2022-01-11 05:33:25,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:33:25,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2022-01-11 05:33:25,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:25,585 INFO L225 Difference]: With dead ends: 34371 [2022-01-11 05:33:25,586 INFO L226 Difference]: Without dead ends: 24394 [2022-01-11 05:33:25,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:25,597 INFO L933 BasicCegarLoop]: 11497 mSDtfsCounter, 7669 mSDsluCounter, 9775 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7669 SdHoareTripleChecker+Valid, 21272 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:25,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7669 Valid, 21272 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-11 05:33:25,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24394 states. [2022-01-11 05:33:26,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24394 to 14041. [2022-01-11 05:33:26,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14041 states, 14037 states have (on average 1.7780864857163212) internal successors, (24959), 14040 states have internal predecessors, (24959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:26,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14041 states to 14041 states and 24959 transitions. [2022-01-11 05:33:26,771 INFO L78 Accepts]: Start accepts. Automaton has 14041 states and 24959 transitions. Word has length 102 [2022-01-11 05:33:26,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:26,771 INFO L470 AbstractCegarLoop]: Abstraction has 14041 states and 24959 transitions. [2022-01-11 05:33:26,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:26,771 INFO L276 IsEmpty]: Start isEmpty. Operand 14041 states and 24959 transitions. [2022-01-11 05:33:26,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-11 05:33:26,776 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:26,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:26,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 05:33:26,776 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:26,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:26,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1214393167, now seen corresponding path program 1 times [2022-01-11 05:33:26,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:26,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577881489] [2022-01-11 05:33:26,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:26,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:26,860 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 05:33:26,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:26,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577881489] [2022-01-11 05:33:26,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577881489] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:26,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:26,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:33:26,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016606624] [2022-01-11 05:33:26,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:26,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:33:26,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:26,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:33:26,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:33:26,861 INFO L87 Difference]: Start difference. First operand 14041 states and 24959 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:29,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:29,680 INFO L93 Difference]: Finished difference Result 48685 states and 86701 transitions. [2022-01-11 05:33:29,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:33:29,680 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2022-01-11 05:33:29,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:29,743 INFO L225 Difference]: With dead ends: 48685 [2022-01-11 05:33:29,743 INFO L226 Difference]: Without dead ends: 34806 [2022-01-11 05:33:29,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:33:29,763 INFO L933 BasicCegarLoop]: 12653 mSDtfsCounter, 29347 mSDsluCounter, 16954 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29347 SdHoareTripleChecker+Valid, 29607 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:29,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29347 Valid, 29607 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:29,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34806 states. [2022-01-11 05:33:30,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34806 to 14063. [2022-01-11 05:33:30,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14063 states, 14059 states have (on average 1.7772956824809731) internal successors, (24987), 14062 states have internal predecessors, (24987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:31,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14063 states to 14063 states and 24987 transitions. [2022-01-11 05:33:31,004 INFO L78 Accepts]: Start accepts. Automaton has 14063 states and 24987 transitions. Word has length 102 [2022-01-11 05:33:31,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:31,004 INFO L470 AbstractCegarLoop]: Abstraction has 14063 states and 24987 transitions. [2022-01-11 05:33:31,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:31,004 INFO L276 IsEmpty]: Start isEmpty. Operand 14063 states and 24987 transitions. [2022-01-11 05:33:31,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-11 05:33:31,009 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:31,009 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] [2022-01-11 05:33:31,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 05:33:31,009 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:31,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:31,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1791132744, now seen corresponding path program 1 times [2022-01-11 05:33:31,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:31,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997416169] [2022-01-11 05:33:31,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:31,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:31,078 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 05:33:31,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:31,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997416169] [2022-01-11 05:33:31,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997416169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:31,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:31,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:33:31,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184684413] [2022-01-11 05:33:31,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:31,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:33:31,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:31,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:33:31,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:33:31,080 INFO L87 Difference]: Start difference. First operand 14063 states and 24987 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:31,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:31,824 INFO L93 Difference]: Finished difference Result 20966 states and 37293 transitions. [2022-01-11 05:33:31,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:33:31,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-01-11 05:33:31,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:31,834 INFO L225 Difference]: With dead ends: 20966 [2022-01-11 05:33:31,834 INFO L226 Difference]: Without dead ends: 6991 [2022-01-11 05:33:31,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:33:31,840 INFO L933 BasicCegarLoop]: 4226 mSDtfsCounter, 8401 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8401 SdHoareTripleChecker+Valid, 4332 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:31,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8401 Valid, 4332 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:31,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6991 states. [2022-01-11 05:33:32,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6991 to 6991. [2022-01-11 05:33:32,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6991 states, 6987 states have (on average 1.7762988407041649) internal successors, (12411), 6990 states have internal predecessors, (12411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:32,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6991 states to 6991 states and 12411 transitions. [2022-01-11 05:33:32,410 INFO L78 Accepts]: Start accepts. Automaton has 6991 states and 12411 transitions. Word has length 103 [2022-01-11 05:33:32,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:32,410 INFO L470 AbstractCegarLoop]: Abstraction has 6991 states and 12411 transitions. [2022-01-11 05:33:32,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:32,411 INFO L276 IsEmpty]: Start isEmpty. Operand 6991 states and 12411 transitions. [2022-01-11 05:33:32,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-11 05:33:32,413 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:32,413 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] [2022-01-11 05:33:32,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 05:33:32,413 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:32,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:32,414 INFO L85 PathProgramCache]: Analyzing trace with hash 687257145, now seen corresponding path program 1 times [2022-01-11 05:33:32,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:32,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724764056] [2022-01-11 05:33:32,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:32,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:32,470 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 05:33:32,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:32,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724764056] [2022-01-11 05:33:32,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724764056] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:32,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:32,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:33:32,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438782112] [2022-01-11 05:33:32,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:32,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:32,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:32,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:32,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:32,471 INFO L87 Difference]: Start difference. First operand 6991 states and 12411 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:36,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:36,408 INFO L93 Difference]: Finished difference Result 50007 states and 89505 transitions. [2022-01-11 05:33:36,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:33:36,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2022-01-11 05:33:36,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:36,474 INFO L225 Difference]: With dead ends: 50007 [2022-01-11 05:33:36,474 INFO L226 Difference]: Without dead ends: 43146 [2022-01-11 05:33:36,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:33:36,490 INFO L933 BasicCegarLoop]: 6851 mSDtfsCounter, 29319 mSDsluCounter, 20037 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29319 SdHoareTripleChecker+Valid, 26888 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:36,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29319 Valid, 26888 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:33:36,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43146 states. [2022-01-11 05:33:37,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43146 to 12781. [2022-01-11 05:33:37,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12781 states, 12777 states have (on average 1.790169836424826) internal successors, (22873), 12780 states have internal predecessors, (22873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:37,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12781 states to 12781 states and 22873 transitions. [2022-01-11 05:33:37,837 INFO L78 Accepts]: Start accepts. Automaton has 12781 states and 22873 transitions. Word has length 104 [2022-01-11 05:33:37,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:37,838 INFO L470 AbstractCegarLoop]: Abstraction has 12781 states and 22873 transitions. [2022-01-11 05:33:37,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:37,838 INFO L276 IsEmpty]: Start isEmpty. Operand 12781 states and 22873 transitions. [2022-01-11 05:33:37,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-11 05:33:37,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:37,840 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] [2022-01-11 05:33:37,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 05:33:37,840 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:37,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:37,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1974906152, now seen corresponding path program 1 times [2022-01-11 05:33:37,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:37,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583510125] [2022-01-11 05:33:37,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:37,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:37,915 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 05:33:37,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:37,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583510125] [2022-01-11 05:33:37,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583510125] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:37,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:37,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:33:37,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515755656] [2022-01-11 05:33:37,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:37,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:33:37,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:37,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:33:37,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:33:37,916 INFO L87 Difference]: Start difference. First operand 12781 states and 22873 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:40,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:40,320 INFO L93 Difference]: Finished difference Result 26718 states and 47965 transitions. [2022-01-11 05:33:40,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:33:40,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2022-01-11 05:33:40,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:40,358 INFO L225 Difference]: With dead ends: 26718 [2022-01-11 05:33:40,358 INFO L226 Difference]: Without dead ends: 21231 [2022-01-11 05:33:40,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-11 05:33:40,370 INFO L933 BasicCegarLoop]: 5879 mSDtfsCounter, 19002 mSDsluCounter, 13346 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19002 SdHoareTripleChecker+Valid, 19225 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:40,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19002 Valid, 19225 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:33:40,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21231 states. [2022-01-11 05:33:41,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21231 to 12761. [2022-01-11 05:33:41,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12761 states, 12757 states have (on average 1.7898408716782943) internal successors, (22833), 12760 states have internal predecessors, (22833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:41,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12761 states to 12761 states and 22833 transitions. [2022-01-11 05:33:41,680 INFO L78 Accepts]: Start accepts. Automaton has 12761 states and 22833 transitions. Word has length 104 [2022-01-11 05:33:41,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:41,680 INFO L470 AbstractCegarLoop]: Abstraction has 12761 states and 22833 transitions. [2022-01-11 05:33:41,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:41,680 INFO L276 IsEmpty]: Start isEmpty. Operand 12761 states and 22833 transitions. [2022-01-11 05:33:41,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-11 05:33:41,683 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:41,683 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] [2022-01-11 05:33:41,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 05:33:41,683 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:41,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:41,683 INFO L85 PathProgramCache]: Analyzing trace with hash -122620208, now seen corresponding path program 1 times [2022-01-11 05:33:41,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:41,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9302875] [2022-01-11 05:33:41,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:41,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:41,756 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 05:33:41,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:41,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9302875] [2022-01-11 05:33:41,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9302875] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:41,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:41,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:33:41,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728575579] [2022-01-11 05:33:41,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:41,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:41,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:41,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:41,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:41,759 INFO L87 Difference]: Start difference. First operand 12761 states and 22833 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)