/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_LAZY.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:56:32,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:56:32,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:56:32,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:56:32,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:56:32,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:56:32,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:56:32,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:56:32,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:56:32,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:56:32,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:56:32,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:56:32,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:56:32,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:56:32,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:56:32,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:56:32,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:56:32,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:56:32,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:56:32,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:56:32,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:56:32,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:56:32,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:56:32,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:56:32,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 17:56:32,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 17:56:32,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 17:56:32,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 17:56:32,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 17:56:32,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 17:56:32,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 17:56:32,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 17:56:32,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 17:56:32,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 17:56:32,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 17:56:32,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 17:56:32,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 17:56:32,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 17:56:32,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:56:32,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:56:32,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:56:32,227 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 17:56:32,240 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:56:32,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:56:32,240 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:56:32,240 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:56:32,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:56:32,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:56:32,241 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:56:32,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:56:32,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:56:32,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:56:32,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:56:32,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:56:32,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:56:32,242 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:56:32,242 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:56:32,242 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:56:32,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:56:32,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:56:32,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:56:32,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:56:32,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:56:32,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:56:32,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:56:32,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:56:32,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:56:32,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:56:32,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:56:32,243 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:56:32,243 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:56:32,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:56:32,243 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:56:32,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:56:32,244 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:56:32,244 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:56:32,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:56:32,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:56:32,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:56:32,407 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:56:32,408 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:56:32,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product27.cil.c [2022-01-10 17:56:32,461 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba716ab6/f08fac23ac594e82a322457b21deb7f9/FLAGc1f8b71e7 [2022-01-10 17:56:32,920 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:56:32,921 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product27.cil.c [2022-01-10 17:56:32,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba716ab6/f08fac23ac594e82a322457b21deb7f9/FLAGc1f8b71e7 [2022-01-10 17:56:33,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba716ab6/f08fac23ac594e82a322457b21deb7f9 [2022-01-10 17:56:33,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:56:33,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:56:33,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:56:33,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:56:33,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:56:33,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:56:33" (1/1) ... [2022-01-10 17:56:33,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9c0cb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:33, skipping insertion in model container [2022-01-10 17:56:33,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:56:33" (1/1) ... [2022-01-10 17:56:33,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:56:33,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:56:33,706 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_spec2_product27.cil.c[16494,16507] [2022-01-10 17:56:33,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:56:33,878 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 17:56:33,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:56:33,933 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_spec2_product27.cil.c[16494,16507] [2022-01-10 17:56:33,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:56:34,005 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:56:34,041 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_spec2_product27.cil.c[16494,16507] [2022-01-10 17:56:34,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:56:34,105 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:56:34,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:34 WrapperNode [2022-01-10 17:56:34,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:56:34,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:56:34,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:56:34,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:56:34,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:34" (1/1) ... [2022-01-10 17:56:34,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:34" (1/1) ... [2022-01-10 17:56:34,262 INFO L137 Inliner]: procedures = 97, calls = 342, calls flagged for inlining = 195, calls inlined = 330, statements flattened = 9572 [2022-01-10 17:56:34,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:56:34,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:56:34,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:56:34,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:56:34,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:34" (1/1) ... [2022-01-10 17:56:34,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:34" (1/1) ... [2022-01-10 17:56:34,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:34" (1/1) ... [2022-01-10 17:56:34,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:34" (1/1) ... [2022-01-10 17:56:34,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:34" (1/1) ... [2022-01-10 17:56:34,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:34" (1/1) ... [2022-01-10 17:56:34,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:34" (1/1) ... [2022-01-10 17:56:34,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:56:34,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:56:34,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:56:34,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:56:34,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:34" (1/1) ... [2022-01-10 17:56:34,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:56:34,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:56:34,468 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) [2022-01-10 17:56:34,495 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 [2022-01-10 17:56:34,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:56:34,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:56:34,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:56:34,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:56:34,638 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:56:34,639 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:56:37,992 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:56:38,018 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:56:38,018 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 17:56:38,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:56:38 BoogieIcfgContainer [2022-01-10 17:56:38,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:56:38,024 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:56:38,024 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:56:38,025 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:56:38,026 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:56:38" (1/1) ... [2022-01-10 17:56:38,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:56:38 BasicIcfg [2022-01-10 17:56:38,589 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:56:38,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:56:38,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:56:38,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:56:38,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:56:33" (1/4) ... [2022-01-10 17:56:38,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5fb021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:56:38, skipping insertion in model container [2022-01-10 17:56:38,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:34" (2/4) ... [2022-01-10 17:56:38,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5fb021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:56:38, skipping insertion in model container [2022-01-10 17:56:38,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:56:38" (3/4) ... [2022-01-10 17:56:38,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5fb021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:56:38, skipping insertion in model container [2022-01-10 17:56:38,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:56:38" (4/4) ... [2022-01-10 17:56:38,594 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product27.cil.cTransformedIcfg [2022-01-10 17:56:38,598 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:56:38,598 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 17:56:38,633 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:56:38,637 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 [2022-01-10 17:56:38,638 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 17:56:38,673 INFO L276 IsEmpty]: Start isEmpty. Operand has 2676 states, 2670 states have (on average 1.8588014981273409) internal successors, (4963), 2675 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:38,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 17:56:38,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:38,685 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] [2022-01-10 17:56:38,686 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)] === [2022-01-10 17:56:38,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:38,689 INFO L85 PathProgramCache]: Analyzing trace with hash -179029468, now seen corresponding path program 1 times [2022-01-10 17:56:38,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:38,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735804510] [2022-01-10 17:56:38,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:38,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:39,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:56:39,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:39,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735804510] [2022-01-10 17:56:39,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735804510] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:39,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:39,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:39,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796004657] [2022-01-10 17:56:39,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:39,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:39,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:39,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:39,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:39,111 INFO L87 Difference]: Start difference. First operand has 2676 states, 2670 states have (on average 1.8588014981273409) internal successors, (4963), 2675 states have internal predecessors, (4963), 0 states have call successors, (0), 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 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:39,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:39,275 INFO L93 Difference]: Finished difference Result 5337 states and 9903 transitions. [2022-01-10 17:56:39,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:39,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-01-10 17:56:39,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:39,316 INFO L225 Difference]: With dead ends: 5337 [2022-01-10 17:56:39,316 INFO L226 Difference]: Without dead ends: 2665 [2022-01-10 17:56:39,326 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 [2022-01-10 17:56:39,328 INFO L933 BasicCegarLoop]: 4942 mSDtfsCounter, 4937 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4937 SdHoareTripleChecker+Valid, 4953 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:39,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4937 Valid, 4953 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:39,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2022-01-10 17:56:39,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2665. [2022-01-10 17:56:39,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2660 states have (on average 1.856766917293233) internal successors, (4939), 2664 states have internal predecessors, (4939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:39,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 4939 transitions. [2022-01-10 17:56:39,432 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 4939 transitions. Word has length 51 [2022-01-10 17:56:39,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:39,433 INFO L470 AbstractCegarLoop]: Abstraction has 2665 states and 4939 transitions. [2022-01-10 17:56:39,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:39,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 4939 transitions. [2022-01-10 17:56:39,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 17:56:39,435 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:39,436 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] [2022-01-10 17:56:39,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:56:39,436 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)] === [2022-01-10 17:56:39,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:39,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1527882166, now seen corresponding path program 1 times [2022-01-10 17:56:39,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:39,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332596393] [2022-01-10 17:56:39,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:39,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:39,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:56:39,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:39,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332596393] [2022-01-10 17:56:39,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332596393] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:39,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:39,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 17:56:39,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540229094] [2022-01-10 17:56:39,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:39,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 17:56:39,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:39,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 17:56:39,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 17:56:39,575 INFO L87 Difference]: Start difference. First operand 2665 states and 4939 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:39,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:39,744 INFO L93 Difference]: Finished difference Result 5316 states and 9863 transitions. [2022-01-10 17:56:39,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:39,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-01-10 17:56:39,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:39,760 INFO L225 Difference]: With dead ends: 5316 [2022-01-10 17:56:39,760 INFO L226 Difference]: Without dead ends: 2665 [2022-01-10 17:56:39,763 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 [2022-01-10 17:56:39,764 INFO L933 BasicCegarLoop]: 4932 mSDtfsCounter, 14791 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14791 SdHoareTripleChecker+Valid, 4939 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:39,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14791 Valid, 4939 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:39,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2022-01-10 17:56:39,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2665. [2022-01-10 17:56:39,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2660 states have (on average 1.856390977443609) internal successors, (4938), 2664 states have internal predecessors, (4938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:39,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 4938 transitions. [2022-01-10 17:56:39,829 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 4938 transitions. Word has length 58 [2022-01-10 17:56:39,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:39,830 INFO L470 AbstractCegarLoop]: Abstraction has 2665 states and 4938 transitions. [2022-01-10 17:56:39,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:39,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 4938 transitions. [2022-01-10 17:56:39,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 17:56:39,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:39,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:56:39,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:56:39,840 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)] === [2022-01-10 17:56:39,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:39,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1066344651, now seen corresponding path program 1 times [2022-01-10 17:56:39,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:39,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029463065] [2022-01-10 17:56:39,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:39,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:39,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:56:39,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:39,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029463065] [2022-01-10 17:56:39,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029463065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:39,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:39,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:39,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947229756] [2022-01-10 17:56:39,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:39,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:39,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:39,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:39,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:39,910 INFO L87 Difference]: Start difference. First operand 2665 states and 4938 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:40,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:40,019 INFO L93 Difference]: Finished difference Result 5280 states and 9791 transitions. [2022-01-10 17:56:40,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:40,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-01-10 17:56:40,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:40,030 INFO L225 Difference]: With dead ends: 5280 [2022-01-10 17:56:40,030 INFO L226 Difference]: Without dead ends: 2665 [2022-01-10 17:56:40,037 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 [2022-01-10 17:56:40,040 INFO L933 BasicCegarLoop]: 4878 mSDtfsCounter, 4897 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4897 SdHoareTripleChecker+Valid, 4892 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:40,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4897 Valid, 4892 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:40,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2022-01-10 17:56:40,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2665. [2022-01-10 17:56:40,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2660 states have (on average 1.8469924812030074) internal successors, (4913), 2664 states have internal predecessors, (4913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:40,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 4913 transitions. [2022-01-10 17:56:40,106 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 4913 transitions. Word has length 58 [2022-01-10 17:56:40,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:40,106 INFO L470 AbstractCegarLoop]: Abstraction has 2665 states and 4913 transitions. [2022-01-10 17:56:40,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:40,107 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 4913 transitions. [2022-01-10 17:56:40,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 17:56:40,109 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:40,109 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] [2022-01-10 17:56:40,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 17:56:40,109 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)] === [2022-01-10 17:56:40,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:40,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1283332678, now seen corresponding path program 1 times [2022-01-10 17:56:40,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:40,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782949380] [2022-01-10 17:56:40,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:40,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:40,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:56:40,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:40,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782949380] [2022-01-10 17:56:40,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782949380] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:40,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:40,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:40,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023172368] [2022-01-10 17:56:40,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:40,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:40,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:40,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:40,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:40,210 INFO L87 Difference]: Start difference. First operand 2665 states and 4913 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:40,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:40,378 INFO L93 Difference]: Finished difference Result 5979 states and 11072 transitions. [2022-01-10 17:56:40,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:40,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2022-01-10 17:56:40,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:40,393 INFO L225 Difference]: With dead ends: 5979 [2022-01-10 17:56:40,394 INFO L226 Difference]: Without dead ends: 4623 [2022-01-10 17:56:40,396 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 [2022-01-10 17:56:40,403 INFO L933 BasicCegarLoop]: 5378 mSDtfsCounter, 4847 mSDsluCounter, 3643 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4847 SdHoareTripleChecker+Valid, 9021 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:40,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4847 Valid, 9021 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:40,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4623 states. [2022-01-10 17:56:40,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4623 to 4623. [2022-01-10 17:56:40,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4623 states, 4618 states have (on average 1.8546990038977913) internal successors, (8565), 4622 states have internal predecessors, (8565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:40,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4623 states to 4623 states and 8565 transitions. [2022-01-10 17:56:40,513 INFO L78 Accepts]: Start accepts. Automaton has 4623 states and 8565 transitions. Word has length 61 [2022-01-10 17:56:40,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:40,513 INFO L470 AbstractCegarLoop]: Abstraction has 4623 states and 8565 transitions. [2022-01-10 17:56:40,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:40,513 INFO L276 IsEmpty]: Start isEmpty. Operand 4623 states and 8565 transitions. [2022-01-10 17:56:40,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 17:56:40,518 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:40,518 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] [2022-01-10 17:56:40,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 17:56:40,518 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:40,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:40,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1623176503, now seen corresponding path program 1 times [2022-01-10 17:56:40,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:40,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432045357] [2022-01-10 17:56:40,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:40,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:40,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:56:40,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:40,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432045357] [2022-01-10 17:56:40,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432045357] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:40,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:40,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:40,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204135822] [2022-01-10 17:56:40,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:40,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:40,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:40,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:40,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:40,590 INFO L87 Difference]: Start difference. First operand 4623 states and 8565 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:40,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:40,744 INFO L93 Difference]: Finished difference Result 11110 states and 20626 transitions. [2022-01-10 17:56:40,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:40,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-01-10 17:56:40,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:40,775 INFO L225 Difference]: With dead ends: 11110 [2022-01-10 17:56:40,775 INFO L226 Difference]: Without dead ends: 8422 [2022-01-10 17:56:40,782 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 [2022-01-10 17:56:40,782 INFO L933 BasicCegarLoop]: 4910 mSDtfsCounter, 4846 mSDsluCounter, 3646 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4846 SdHoareTripleChecker+Valid, 8556 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:40,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4846 Valid, 8556 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:40,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8422 states. [2022-01-10 17:56:41,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8422 to 8420. [2022-01-10 17:56:41,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8420 states, 8415 states have (on average 1.8589423648247179) internal successors, (15643), 8419 states have internal predecessors, (15643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:41,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8420 states to 8420 states and 15643 transitions. [2022-01-10 17:56:41,051 INFO L78 Accepts]: Start accepts. Automaton has 8420 states and 15643 transitions. Word has length 63 [2022-01-10 17:56:41,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:41,054 INFO L470 AbstractCegarLoop]: Abstraction has 8420 states and 15643 transitions. [2022-01-10 17:56:41,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:41,054 INFO L276 IsEmpty]: Start isEmpty. Operand 8420 states and 15643 transitions. [2022-01-10 17:56:41,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 17:56:41,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:41,056 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] [2022-01-10 17:56:41,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 17:56:41,057 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:41,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:41,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1629360537, now seen corresponding path program 1 times [2022-01-10 17:56:41,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:41,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921319495] [2022-01-10 17:56:41,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:41,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:41,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:56:41,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:41,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921319495] [2022-01-10 17:56:41,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921319495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:41,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:41,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:41,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682388892] [2022-01-10 17:56:41,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:41,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:41,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:41,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:41,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:41,139 INFO L87 Difference]: Start difference. First operand 8420 states and 15643 transitions. 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) [2022-01-10 17:56:41,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:41,370 INFO L93 Difference]: Finished difference Result 21122 states and 39263 transitions. [2022-01-10 17:56:41,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:41,371 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 [2022-01-10 17:56:41,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:41,408 INFO L225 Difference]: With dead ends: 21122 [2022-01-10 17:56:41,408 INFO L226 Difference]: Without dead ends: 15779 [2022-01-10 17:56:41,421 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 [2022-01-10 17:56:41,422 INFO L933 BasicCegarLoop]: 4910 mSDtfsCounter, 4834 mSDsluCounter, 3649 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4834 SdHoareTripleChecker+Valid, 8559 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:41,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4834 Valid, 8559 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:41,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15779 states. [2022-01-10 17:56:41,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15779 to 15775. [2022-01-10 17:56:41,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15775 states, 15770 states have (on average 1.8608116677235256) internal successors, (29345), 15774 states have internal predecessors, (29345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:41,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15775 states to 15775 states and 29345 transitions. [2022-01-10 17:56:41,822 INFO L78 Accepts]: Start accepts. Automaton has 15775 states and 29345 transitions. Word has length 64 [2022-01-10 17:56:41,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:41,822 INFO L470 AbstractCegarLoop]: Abstraction has 15775 states and 29345 transitions. [2022-01-10 17:56:41,822 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) [2022-01-10 17:56:41,823 INFO L276 IsEmpty]: Start isEmpty. Operand 15775 states and 29345 transitions. [2022-01-10 17:56:41,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 17:56:41,825 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:41,825 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] [2022-01-10 17:56:41,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 17:56:41,825 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:41,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:41,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1029446180, now seen corresponding path program 1 times [2022-01-10 17:56:41,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:41,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694413322] [2022-01-10 17:56:41,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:41,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:41,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:56:41,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:41,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694413322] [2022-01-10 17:56:41,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694413322] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:41,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:41,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:41,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204783993] [2022-01-10 17:56:41,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:41,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:41,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:41,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:41,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:41,901 INFO L87 Difference]: Start difference. First operand 15775 states and 29345 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:42,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:42,402 INFO L93 Difference]: Finished difference Result 40646 states and 75592 transitions. [2022-01-10 17:56:42,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:42,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-01-10 17:56:42,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:42,474 INFO L225 Difference]: With dead ends: 40646 [2022-01-10 17:56:42,474 INFO L226 Difference]: Without dead ends: 30012 [2022-01-10 17:56:42,502 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 [2022-01-10 17:56:42,503 INFO L933 BasicCegarLoop]: 4910 mSDtfsCounter, 4833 mSDsluCounter, 3652 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4833 SdHoareTripleChecker+Valid, 8562 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:42,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4833 Valid, 8562 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:42,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30012 states. [2022-01-10 17:56:43,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30012 to 30006. [2022-01-10 17:56:43,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30006 states, 30001 states have (on average 1.8612379587347088) internal successors, (55839), 30005 states have internal predecessors, (55839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:43,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30006 states to 30006 states and 55839 transitions. [2022-01-10 17:56:43,264 INFO L78 Accepts]: Start accepts. Automaton has 30006 states and 55839 transitions. Word has length 65 [2022-01-10 17:56:43,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:43,265 INFO L470 AbstractCegarLoop]: Abstraction has 30006 states and 55839 transitions. [2022-01-10 17:56:43,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:43,265 INFO L276 IsEmpty]: Start isEmpty. Operand 30006 states and 55839 transitions. [2022-01-10 17:56:43,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 17:56:43,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:43,267 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] [2022-01-10 17:56:43,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 17:56:43,268 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:43,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:43,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1848075850, now seen corresponding path program 1 times [2022-01-10 17:56:43,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:43,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647833465] [2022-01-10 17:56:43,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:43,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:43,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:56:43,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:43,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647833465] [2022-01-10 17:56:43,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647833465] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:43,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:43,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:43,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002036160] [2022-01-10 17:56:43,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:43,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:43,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:43,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:43,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:43,347 INFO L87 Difference]: Start difference. First operand 30006 states and 55839 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:44,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:44,364 INFO L93 Difference]: Finished difference Result 78694 states and 146356 transitions. [2022-01-10 17:56:44,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:44,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 17:56:44,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:44,525 INFO L225 Difference]: With dead ends: 78694 [2022-01-10 17:56:44,525 INFO L226 Difference]: Without dead ends: 57510 [2022-01-10 17:56:44,565 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 [2022-01-10 17:56:44,565 INFO L933 BasicCegarLoop]: 4911 mSDtfsCounter, 4832 mSDsluCounter, 3655 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4832 SdHoareTripleChecker+Valid, 8566 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:44,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4832 Valid, 8566 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:44,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57510 states. [2022-01-10 17:56:45,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57510 to 57502. [2022-01-10 17:56:45,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57502 states, 57497 states have (on average 1.8608101292241335) internal successors, (106991), 57501 states have internal predecessors, (106991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:45,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57502 states to 57502 states and 106991 transitions. [2022-01-10 17:56:45,860 INFO L78 Accepts]: Start accepts. Automaton has 57502 states and 106991 transitions. Word has length 66 [2022-01-10 17:56:45,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:45,860 INFO L470 AbstractCegarLoop]: Abstraction has 57502 states and 106991 transitions. [2022-01-10 17:56:45,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:45,861 INFO L276 IsEmpty]: Start isEmpty. Operand 57502 states and 106991 transitions. [2022-01-10 17:56:45,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 17:56:45,885 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:45,885 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:56:45,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 17:56:45,885 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)] === [2022-01-10 17:56:45,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:45,886 INFO L85 PathProgramCache]: Analyzing trace with hash 346945443, now seen corresponding path program 1 times [2022-01-10 17:56:45,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:45,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996000998] [2022-01-10 17:56:45,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:45,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:45,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:45,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:56:45,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:45,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996000998] [2022-01-10 17:56:45,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996000998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:45,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:45,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:45,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520592317] [2022-01-10 17:56:45,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:45,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:45,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:45,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:45,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:45,965 INFO L87 Difference]: Start difference. First operand 57502 states and 106991 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:47,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:47,540 INFO L93 Difference]: Finished difference Result 117363 states and 218334 transitions. [2022-01-10 17:56:47,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:47,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2022-01-10 17:56:47,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:47,682 INFO L225 Difference]: With dead ends: 117363 [2022-01-10 17:56:47,682 INFO L226 Difference]: Without dead ends: 60904 [2022-01-10 17:56:47,750 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 [2022-01-10 17:56:47,752 INFO L933 BasicCegarLoop]: 5621 mSDtfsCounter, 3751 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3751 SdHoareTripleChecker+Valid, 8105 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:47,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3751 Valid, 8105 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 17:56:47,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60904 states. [2022-01-10 17:56:48,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60904 to 57502. [2022-01-10 17:56:48,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57502 states, 57497 states have (on average 1.8372436822790754) internal successors, (105636), 57501 states have internal predecessors, (105636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:48,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57502 states to 57502 states and 105636 transitions. [2022-01-10 17:56:48,977 INFO L78 Accepts]: Start accepts. Automaton has 57502 states and 105636 transitions. Word has length 108 [2022-01-10 17:56:48,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:48,977 INFO L470 AbstractCegarLoop]: Abstraction has 57502 states and 105636 transitions. [2022-01-10 17:56:48,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:48,978 INFO L276 IsEmpty]: Start isEmpty. Operand 57502 states and 105636 transitions. [2022-01-10 17:56:49,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 17:56:49,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:49,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:56:49,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 17:56:49,126 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)] === [2022-01-10 17:56:49,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:49,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1487610028, now seen corresponding path program 1 times [2022-01-10 17:56:49,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:49,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059017688] [2022-01-10 17:56:49,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:49,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:49,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:56:49,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:49,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059017688] [2022-01-10 17:56:49,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059017688] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:49,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:49,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:49,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880208403] [2022-01-10 17:56:49,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:49,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:49,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:49,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:49,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:49,200 INFO L87 Difference]: Start difference. First operand 57502 states and 105636 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:50,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:50,641 INFO L93 Difference]: Finished difference Result 119314 states and 219333 transitions. [2022-01-10 17:56:50,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:50,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-01-10 17:56:50,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:50,754 INFO L225 Difference]: With dead ends: 119314 [2022-01-10 17:56:50,755 INFO L226 Difference]: Without dead ends: 64141 [2022-01-10 17:56:50,803 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 [2022-01-10 17:56:50,803 INFO L933 BasicCegarLoop]: 6127 mSDtfsCounter, 3476 mSDsluCounter, 2802 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3476 SdHoareTripleChecker+Valid, 8929 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:50,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3476 Valid, 8929 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 17:56:50,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64141 states. [2022-01-10 17:56:52,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64141 to 57502. [2022-01-10 17:56:52,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57502 states, 57497 states have (on average 1.8169817555698557) internal successors, (104471), 57501 states have internal predecessors, (104471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:52,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57502 states to 57502 states and 104471 transitions. [2022-01-10 17:56:52,217 INFO L78 Accepts]: Start accepts. Automaton has 57502 states and 104471 transitions. Word has length 113 [2022-01-10 17:56:52,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:52,217 INFO L470 AbstractCegarLoop]: Abstraction has 57502 states and 104471 transitions. [2022-01-10 17:56:52,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:52,217 INFO L276 IsEmpty]: Start isEmpty. Operand 57502 states and 104471 transitions. [2022-01-10 17:56:52,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 17:56:52,232 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:52,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:56:52,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 17:56:52,233 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)] === [2022-01-10 17:56:52,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:52,234 INFO L85 PathProgramCache]: Analyzing trace with hash -998478688, now seen corresponding path program 1 times [2022-01-10 17:56:52,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:52,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310029945] [2022-01-10 17:56:52,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:52,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:52,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:56:52,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:52,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310029945] [2022-01-10 17:56:52,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310029945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:52,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:52,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:52,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408929751] [2022-01-10 17:56:52,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:52,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:52,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:52,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:52,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:52,286 INFO L87 Difference]: Start difference. First operand 57502 states and 104471 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:53,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:53,926 INFO L93 Difference]: Finished difference Result 120938 states and 220265 transitions. [2022-01-10 17:56:53,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:53,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-01-10 17:56:53,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:54,052 INFO L225 Difference]: With dead ends: 120938 [2022-01-10 17:56:54,052 INFO L226 Difference]: Without dead ends: 68211 [2022-01-10 17:56:54,086 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 [2022-01-10 17:56:54,086 INFO L933 BasicCegarLoop]: 6525 mSDtfsCounter, 3323 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3323 SdHoareTripleChecker+Valid, 9645 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:54,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3323 Valid, 9645 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 17:56:54,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68211 states. [2022-01-10 17:56:55,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68211 to 57502. [2022-01-10 17:56:55,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57502 states, 57497 states have (on average 1.8008939596848532) internal successors, (103546), 57501 states have internal predecessors, (103546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:55,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57502 states to 57502 states and 103546 transitions. [2022-01-10 17:56:55,360 INFO L78 Accepts]: Start accepts. Automaton has 57502 states and 103546 transitions. Word has length 117 [2022-01-10 17:56:55,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:55,361 INFO L470 AbstractCegarLoop]: Abstraction has 57502 states and 103546 transitions. [2022-01-10 17:56:55,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:55,361 INFO L276 IsEmpty]: Start isEmpty. Operand 57502 states and 103546 transitions. [2022-01-10 17:56:55,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 17:56:55,376 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:55,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:56:55,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 17:56:55,377 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)] === [2022-01-10 17:56:55,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:55,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1098449306, now seen corresponding path program 1 times [2022-01-10 17:56:55,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:55,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664118913] [2022-01-10 17:56:55,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:55,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:55,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:56:55,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:55,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664118913] [2022-01-10 17:56:55,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664118913] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:55,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:55,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:55,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510632159] [2022-01-10 17:56:55,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:55,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:55,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:55,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:55,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:55,566 INFO L87 Difference]: Start difference. First operand 57502 states and 103546 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:57,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:57,564 INFO L93 Difference]: Finished difference Result 147688 states and 267527 transitions. [2022-01-10 17:56:57,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:57,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-01-10 17:56:57,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:57,805 INFO L225 Difference]: With dead ends: 147688 [2022-01-10 17:56:57,805 INFO L226 Difference]: Without dead ends: 98086 [2022-01-10 17:56:57,835 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 [2022-01-10 17:56:57,836 INFO L933 BasicCegarLoop]: 7406 mSDtfsCounter, 3058 mSDsluCounter, 3863 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3058 SdHoareTripleChecker+Valid, 11269 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:57,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3058 Valid, 11269 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 17:56:57,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98086 states. [2022-01-10 17:56:59,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98086 to 57187. [2022-01-10 17:56:59,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57187 states, 57182 states have (on average 1.7887796859151481) internal successors, (102286), 57186 states have internal predecessors, (102286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:59,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57187 states to 57187 states and 102286 transitions. [2022-01-10 17:56:59,372 INFO L78 Accepts]: Start accepts. Automaton has 57187 states and 102286 transitions. Word has length 120 [2022-01-10 17:56:59,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:59,372 INFO L470 AbstractCegarLoop]: Abstraction has 57187 states and 102286 transitions. [2022-01-10 17:56:59,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:56:59,373 INFO L276 IsEmpty]: Start isEmpty. Operand 57187 states and 102286 transitions. [2022-01-10 17:56:59,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 17:56:59,387 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:59,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:56:59,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 17:56:59,388 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:59,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:59,388 INFO L85 PathProgramCache]: Analyzing trace with hash 585844771, now seen corresponding path program 1 times [2022-01-10 17:56:59,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:59,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601991585] [2022-01-10 17:56:59,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:59,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:59,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:56:59,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:59,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601991585] [2022-01-10 17:56:59,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601991585] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:59,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:59,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:59,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144329789] [2022-01-10 17:56:59,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:59,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:59,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:59,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:59,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:59,440 INFO L87 Difference]: Start difference. First operand 57187 states and 102286 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:01,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:01,275 INFO L93 Difference]: Finished difference Result 118252 states and 213226 transitions. [2022-01-10 17:57:01,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:57:01,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 17:57:01,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:01,393 INFO L225 Difference]: With dead ends: 118252 [2022-01-10 17:57:01,394 INFO L226 Difference]: Without dead ends: 72651 [2022-01-10 17:57:01,432 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 [2022-01-10 17:57:01,435 INFO L933 BasicCegarLoop]: 6963 mSDtfsCounter, 2782 mSDsluCounter, 3756 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2782 SdHoareTripleChecker+Valid, 10719 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:01,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2782 Valid, 10719 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 17:57:01,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72651 states. [2022-01-10 17:57:02,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72651 to 57187. [2022-01-10 17:57:02,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57187 states, 57182 states have (on average 1.7775873526634256) internal successors, (101646), 57186 states have internal predecessors, (101646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:02,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57187 states to 57187 states and 101646 transitions. [2022-01-10 17:57:02,816 INFO L78 Accepts]: Start accepts. Automaton has 57187 states and 101646 transitions. Word has length 121 [2022-01-10 17:57:02,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:02,816 INFO L470 AbstractCegarLoop]: Abstraction has 57187 states and 101646 transitions. [2022-01-10 17:57:02,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:02,817 INFO L276 IsEmpty]: Start isEmpty. Operand 57187 states and 101646 transitions. [2022-01-10 17:57:02,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 17:57:02,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:02,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:02,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 17:57:02,829 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:57:02,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:02,830 INFO L85 PathProgramCache]: Analyzing trace with hash 295027403, now seen corresponding path program 1 times [2022-01-10 17:57:02,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:02,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228485638] [2022-01-10 17:57:02,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:02,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:02,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:02,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:02,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228485638] [2022-01-10 17:57:02,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228485638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:02,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:02,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:57:02,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109607651] [2022-01-10 17:57:02,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:02,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:57:02,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:02,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:57:02,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:57:02,904 INFO L87 Difference]: Start difference. First operand 57187 states and 101646 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:04,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:04,958 INFO L93 Difference]: Finished difference Result 171461 states and 304818 transitions. [2022-01-10 17:57:04,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:57:04,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2022-01-10 17:57:04,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:05,179 INFO L225 Difference]: With dead ends: 171461 [2022-01-10 17:57:05,179 INFO L226 Difference]: Without dead ends: 114303 [2022-01-10 17:57:05,260 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 [2022-01-10 17:57:05,261 INFO L933 BasicCegarLoop]: 9372 mSDtfsCounter, 14062 mSDsluCounter, 4705 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14062 SdHoareTripleChecker+Valid, 14077 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:05,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14062 Valid, 14077 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:57:05,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114303 states. [2022-01-10 17:57:07,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114303 to 57166. [2022-01-10 17:57:07,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57166 states, 57161 states have (on average 1.7777505641958677) internal successors, (101618), 57165 states have internal predecessors, (101618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:07,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57166 states to 57166 states and 101618 transitions. [2022-01-10 17:57:07,713 INFO L78 Accepts]: Start accepts. Automaton has 57166 states and 101618 transitions. Word has length 122 [2022-01-10 17:57:07,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:07,714 INFO L470 AbstractCegarLoop]: Abstraction has 57166 states and 101618 transitions. [2022-01-10 17:57:07,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:07,714 INFO L276 IsEmpty]: Start isEmpty. Operand 57166 states and 101618 transitions. [2022-01-10 17:57:07,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 17:57:07,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:07,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:07,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 17:57:07,727 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:57:07,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:07,727 INFO L85 PathProgramCache]: Analyzing trace with hash 36381522, now seen corresponding path program 1 times [2022-01-10 17:57:07,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:07,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479177056] [2022-01-10 17:57:07,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:07,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:07,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:07,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:07,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479177056] [2022-01-10 17:57:07,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479177056] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:07,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:07,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:57:07,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156160082] [2022-01-10 17:57:07,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:07,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:57:07,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:07,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:57:07,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:57:07,785 INFO L87 Difference]: Start difference. First operand 57166 states and 101618 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:09,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:09,228 INFO L93 Difference]: Finished difference Result 114303 states and 203204 transitions. [2022-01-10 17:57:09,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 17:57:09,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2022-01-10 17:57:09,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:09,317 INFO L225 Difference]: With dead ends: 114303 [2022-01-10 17:57:09,317 INFO L226 Difference]: Without dead ends: 57160 [2022-01-10 17:57:09,347 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 [2022-01-10 17:57:09,347 INFO L933 BasicCegarLoop]: 4693 mSDtfsCounter, 9365 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9365 SdHoareTripleChecker+Valid, 4719 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:09,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9365 Valid, 4719 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:57:09,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57160 states. [2022-01-10 17:57:10,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57160 to 57160. [2022-01-10 17:57:10,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57160 states, 57155 states have (on average 1.7777972180911557) internal successors, (101610), 57159 states have internal predecessors, (101610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:10,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57160 states to 57160 states and 101610 transitions. [2022-01-10 17:57:10,955 INFO L78 Accepts]: Start accepts. Automaton has 57160 states and 101610 transitions. Word has length 124 [2022-01-10 17:57:10,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:10,955 INFO L470 AbstractCegarLoop]: Abstraction has 57160 states and 101610 transitions. [2022-01-10 17:57:10,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:10,956 INFO L276 IsEmpty]: Start isEmpty. Operand 57160 states and 101610 transitions. [2022-01-10 17:57:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 17:57:10,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:10,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:10,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 17:57:10,971 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:57:10,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:10,971 INFO L85 PathProgramCache]: Analyzing trace with hash -981903809, now seen corresponding path program 1 times [2022-01-10 17:57:10,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:10,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607558869] [2022-01-10 17:57:10,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:10,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:11,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:11,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:11,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607558869] [2022-01-10 17:57:11,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607558869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:11,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:11,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:57:11,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801558256] [2022-01-10 17:57:11,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:11,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:57:11,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:11,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:57:11,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:57:11,028 INFO L87 Difference]: Start difference. First operand 57160 states and 101610 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:12,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:12,587 INFO L93 Difference]: Finished difference Result 114291 states and 203185 transitions. [2022-01-10 17:57:12,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:57:12,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2022-01-10 17:57:12,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:12,688 INFO L225 Difference]: With dead ends: 114291 [2022-01-10 17:57:12,689 INFO L226 Difference]: Without dead ends: 57160 [2022-01-10 17:57:12,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 17:57:12,724 INFO L933 BasicCegarLoop]: 4684 mSDtfsCounter, 9352 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9352 SdHoareTripleChecker+Valid, 4734 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:12,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9352 Valid, 4734 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:57:12,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57160 states. [2022-01-10 17:57:14,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57160 to 57160. [2022-01-10 17:57:14,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57160 states, 57155 states have (on average 1.7777797218091156) internal successors, (101609), 57159 states have internal predecessors, (101609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:14,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57160 states to 57160 states and 101609 transitions. [2022-01-10 17:57:14,328 INFO L78 Accepts]: Start accepts. Automaton has 57160 states and 101609 transitions. Word has length 125 [2022-01-10 17:57:14,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:14,329 INFO L470 AbstractCegarLoop]: Abstraction has 57160 states and 101609 transitions. [2022-01-10 17:57:14,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:14,329 INFO L276 IsEmpty]: Start isEmpty. Operand 57160 states and 101609 transitions. [2022-01-10 17:57:14,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-10 17:57:14,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:14,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:14,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 17:57:14,341 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:57:14,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:14,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1630914872, now seen corresponding path program 1 times [2022-01-10 17:57:14,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:14,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725943975] [2022-01-10 17:57:14,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:14,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:14,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:14,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:14,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725943975] [2022-01-10 17:57:14,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725943975] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:14,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:14,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:57:14,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372706372] [2022-01-10 17:57:14,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:14,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:57:14,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:14,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:57:14,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:57:14,391 INFO L87 Difference]: Start difference. First operand 57160 states and 101609 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:17,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:17,564 INFO L93 Difference]: Finished difference Result 165169 states and 292786 transitions. [2022-01-10 17:57:17,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 17:57:17,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2022-01-10 17:57:17,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:17,738 INFO L225 Difference]: With dead ends: 165169 [2022-01-10 17:57:17,738 INFO L226 Difference]: Without dead ends: 108046 [2022-01-10 17:57:17,775 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 [2022-01-10 17:57:17,775 INFO L933 BasicCegarLoop]: 4719 mSDtfsCounter, 12545 mSDsluCounter, 3980 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12545 SdHoareTripleChecker+Valid, 8699 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 [2022-01-10 17:57:17,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12545 Valid, 8699 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 17:57:17,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108046 states. [2022-01-10 17:57:19,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108046 to 57160. [2022-01-10 17:57:19,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57160 states, 57155 states have (on average 1.7593736331029657) internal successors, (100557), 57159 states have internal predecessors, (100557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:19,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57160 states to 57160 states and 100557 transitions. [2022-01-10 17:57:19,947 INFO L78 Accepts]: Start accepts. Automaton has 57160 states and 100557 transitions. Word has length 126 [2022-01-10 17:57:19,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:19,947 INFO L470 AbstractCegarLoop]: Abstraction has 57160 states and 100557 transitions. [2022-01-10 17:57:19,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:19,948 INFO L276 IsEmpty]: Start isEmpty. Operand 57160 states and 100557 transitions. [2022-01-10 17:57:19,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-10 17:57:19,959 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:19,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:19,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 17:57:19,960 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:57:19,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:19,960 INFO L85 PathProgramCache]: Analyzing trace with hash -580692312, now seen corresponding path program 1 times [2022-01-10 17:57:19,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:19,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69231206] [2022-01-10 17:57:19,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:19,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:20,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:20,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:20,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69231206] [2022-01-10 17:57:20,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69231206] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:20,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:20,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:57:20,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082445638] [2022-01-10 17:57:20,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:20,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 17:57:20,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:20,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 17:57:20,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 17:57:20,020 INFO L87 Difference]: Start difference. First operand 57160 states and 100557 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)