/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_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:55:42,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:55:42,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:55:42,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:55:42,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:55:42,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:55:42,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:55:42,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:55:42,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:55:42,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:55:42,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:55:42,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:55:42,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:55:42,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:55:42,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:55:42,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:55:42,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:55:42,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:55:42,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:55:42,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:55:42,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:55:42,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:55:42,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:55:42,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:55:42,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 17:55:42,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 17:55:42,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 17:55:42,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 17:55:42,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 17:55:42,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 17:55:42,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 17:55:42,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 17:55:42,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 17:55:42,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 17:55:42,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 17:55:42,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 17:55:42,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 17:55:42,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 17:55:42,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:55:42,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:55:42,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:55:42,125 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 17:55:42,136 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:55:42,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:55:42,137 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:55:42,137 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:55:42,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:55:42,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:55:42,138 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:55:42,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:55:42,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:55:42,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:55:42,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:55:42,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:55:42,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:55:42,138 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:55:42,138 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:55:42,138 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:55:42,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:55:42,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:55:42,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:55:42,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:55:42,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:55:42,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:55:42,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:55:42,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:55:42,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:55:42,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:55:42,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:55:42,139 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:55:42,139 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:55:42,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:55:42,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:55:42,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:55:42,140 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:55:42,140 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:55:42,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:55:42,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:55:42,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:55:42,301 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:55:42,301 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:55:42,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product18.cil.c [2022-01-10 17:55:42,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d1381a87/e09ea15b5514415587b167a2fea07045/FLAGbee420dc5 [2022-01-10 17:55:42,783 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:55:42,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product18.cil.c [2022-01-10 17:55:42,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d1381a87/e09ea15b5514415587b167a2fea07045/FLAGbee420dc5 [2022-01-10 17:55:43,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d1381a87/e09ea15b5514415587b167a2fea07045 [2022-01-10 17:55:43,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:55:43,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:55:43,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:55:43,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:55:43,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:55:43,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:55:43" (1/1) ... [2022-01-10 17:55:43,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4ba718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:43, skipping insertion in model container [2022-01-10 17:55:43,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:55:43" (1/1) ... [2022-01-10 17:55:43,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:55:43,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:55:43,406 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_product18.cil.c[38051,38064] [2022-01-10 17:55:43,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:55:43,515 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 17:55:43,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:55:43,560 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_product18.cil.c[38051,38064] [2022-01-10 17:55:43,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:55:43,585 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:55:43,617 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_product18.cil.c[38051,38064] [2022-01-10 17:55:43,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:55:43,652 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:55:43,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:43 WrapperNode [2022-01-10 17:55:43,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:55:43,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:55:43,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:55:43,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:55:43,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:43" (1/1) ... [2022-01-10 17:55:43,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:43" (1/1) ... [2022-01-10 17:55:43,892 INFO L137 Inliner]: procedures = 94, calls = 338, calls flagged for inlining = 190, calls inlined = 514, statements flattened = 16229 [2022-01-10 17:55:43,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:55:43,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:55:43,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:55:43,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:55:43,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:43" (1/1) ... [2022-01-10 17:55:43,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:43" (1/1) ... [2022-01-10 17:55:43,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:43" (1/1) ... [2022-01-10 17:55:43,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:43" (1/1) ... [2022-01-10 17:55:44,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:43" (1/1) ... [2022-01-10 17:55:44,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:43" (1/1) ... [2022-01-10 17:55:44,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:43" (1/1) ... [2022-01-10 17:55:44,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:55:44,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:55:44,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:55:44,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:55:44,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:43" (1/1) ... [2022-01-10 17:55:44,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:55:44,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:55:44,164 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 17:55:44,182 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 17:55:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:55:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:55:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:55:44,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:55:44,337 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:55:44,338 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:55:49,416 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:55:49,445 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:55:49,446 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 17:55:49,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:55:49 BoogieIcfgContainer [2022-01-10 17:55:49,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:55:49,451 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:55:49,451 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:55:49,452 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:55:49,454 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:55:49" (1/1) ... [2022-01-10 17:55:50,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:55:50 BasicIcfg [2022-01-10 17:55:50,235 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:55:50,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:55:50,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:55:50,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:55:50,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:55:43" (1/4) ... [2022-01-10 17:55:50,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e294645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:55:50, skipping insertion in model container [2022-01-10 17:55:50,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:55:43" (2/4) ... [2022-01-10 17:55:50,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e294645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:55:50, skipping insertion in model container [2022-01-10 17:55:50,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:55:49" (3/4) ... [2022-01-10 17:55:50,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e294645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:55:50, skipping insertion in model container [2022-01-10 17:55:50,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:55:50" (4/4) ... [2022-01-10 17:55:50,242 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product18.cil.cTransformedIcfg [2022-01-10 17:55:50,245 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:55:50,245 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 17:55:50,296 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:55:50,300 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 17:55:50,300 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 17:55:50,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 4778 states, 4772 states have (on average 1.874056999161777) internal successors, (8943), 4777 states have internal predecessors, (8943), 0 states have call successors, (0), 0 states 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 17:55:50,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 17:55:50,373 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:50,373 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] [2022-01-10 17:55:50,374 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 17:55:50,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:50,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1691613094, now seen corresponding path program 1 times [2022-01-10 17:55:50,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:50,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404070788] [2022-01-10 17:55:50,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:50,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:50,694 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 17:55:50,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:50,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404070788] [2022-01-10 17:55:50,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404070788] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:50,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:50,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:50,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739891028] [2022-01-10 17:55:50,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:50,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:50,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:50,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:50,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:50,764 INFO L87 Difference]: Start difference. First operand has 4778 states, 4772 states have (on average 1.874056999161777) internal successors, (8943), 4777 states have internal predecessors, (8943), 0 states have call successors, (0), 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 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 17:55:51,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:51,132 INFO L93 Difference]: Finished difference Result 9541 states and 17863 transitions. [2022-01-10 17:55:51,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:51,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-01-10 17:55:51,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:51,168 INFO L225 Difference]: With dead ends: 9541 [2022-01-10 17:55:51,168 INFO L226 Difference]: Without dead ends: 4767 [2022-01-10 17:55:51,181 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 17:55:51,187 INFO L933 BasicCegarLoop]: 8922 mSDtfsCounter, 8917 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8917 SdHoareTripleChecker+Valid, 8933 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 17:55:51,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8917 Valid, 8933 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:55:51,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4767 states. [2022-01-10 17:55:51,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4767 to 4767. [2022-01-10 17:55:51,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4767 states, 4762 states have (on average 1.872952540949181) internal successors, (8919), 4766 states have internal predecessors, (8919), 0 states have call successors, (0), 0 states 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 17:55:51,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4767 states to 4767 states and 8919 transitions. [2022-01-10 17:55:51,372 INFO L78 Accepts]: Start accepts. Automaton has 4767 states and 8919 transitions. Word has length 33 [2022-01-10 17:55:51,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:51,372 INFO L470 AbstractCegarLoop]: Abstraction has 4767 states and 8919 transitions. [2022-01-10 17:55:51,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 17:55:51,373 INFO L276 IsEmpty]: Start isEmpty. Operand 4767 states and 8919 transitions. [2022-01-10 17:55:51,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 17:55:51,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:51,375 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] [2022-01-10 17:55:51,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:55:51,375 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 17:55:51,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:51,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1947303106, now seen corresponding path program 1 times [2022-01-10 17:55:51,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:51,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791888243] [2022-01-10 17:55:51,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:51,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:51,487 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 17:55:51,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:51,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791888243] [2022-01-10 17:55:51,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791888243] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:51,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:51,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:51,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793801160] [2022-01-10 17:55:51,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:51,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:51,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:51,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:51,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:51,496 INFO L87 Difference]: Start difference. First operand 4767 states and 8919 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states 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 17:55:51,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:51,654 INFO L93 Difference]: Finished difference Result 9484 states and 17752 transitions. [2022-01-10 17:55:51,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:51,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2022-01-10 17:55:51,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:51,671 INFO L225 Difference]: With dead ends: 9484 [2022-01-10 17:55:51,671 INFO L226 Difference]: Without dead ends: 4767 [2022-01-10 17:55:51,680 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 17:55:51,681 INFO L933 BasicCegarLoop]: 8859 mSDtfsCounter, 8877 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8877 SdHoareTripleChecker+Valid, 8874 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 17:55:51,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8877 Valid, 8874 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:55:51,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4767 states. [2022-01-10 17:55:51,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4767 to 4767. [2022-01-10 17:55:51,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4767 states, 4762 states have (on average 1.8677026459470811) internal successors, (8894), 4766 states have internal predecessors, (8894), 0 states have call successors, (0), 0 states 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 17:55:51,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4767 states to 4767 states and 8894 transitions. [2022-01-10 17:55:51,808 INFO L78 Accepts]: Start accepts. Automaton has 4767 states and 8894 transitions. Word has length 40 [2022-01-10 17:55:51,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:51,809 INFO L470 AbstractCegarLoop]: Abstraction has 4767 states and 8894 transitions. [2022-01-10 17:55:51,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states 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 17:55:51,811 INFO L276 IsEmpty]: Start isEmpty. Operand 4767 states and 8894 transitions. [2022-01-10 17:55:51,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-10 17:55:51,818 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:51,818 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] [2022-01-10 17:55:51,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:55:51,819 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 17:55:51,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:51,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1398747879, now seen corresponding path program 1 times [2022-01-10 17:55:51,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:51,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637159058] [2022-01-10 17:55:51,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:51,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:51,904 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 17:55:51,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:51,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637159058] [2022-01-10 17:55:51,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637159058] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:51,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:51,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:51,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785936058] [2022-01-10 17:55:51,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:51,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:51,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:51,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:51,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:51,907 INFO L87 Difference]: Start difference. First operand 4767 states and 8894 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states 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 17:55:52,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:52,207 INFO L93 Difference]: Finished difference Result 10801 states and 20198 transitions. [2022-01-10 17:55:52,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:52,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2022-01-10 17:55:52,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:52,236 INFO L225 Difference]: With dead ends: 10801 [2022-01-10 17:55:52,237 INFO L226 Difference]: Without dead ends: 8394 [2022-01-10 17:55:52,245 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 17:55:52,248 INFO L933 BasicCegarLoop]: 9827 mSDtfsCounter, 8834 mSDsluCounter, 6787 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8834 SdHoareTripleChecker+Valid, 16614 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:55:52,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8834 Valid, 16614 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:55:52,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8394 states. [2022-01-10 17:55:52,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8394 to 8394. [2022-01-10 17:55:52,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8394 states, 8389 states have (on average 1.8716175944689475) internal successors, (15701), 8393 states have internal predecessors, (15701), 0 states have call successors, (0), 0 states 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 17:55:52,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8394 states to 8394 states and 15701 transitions. [2022-01-10 17:55:52,459 INFO L78 Accepts]: Start accepts. Automaton has 8394 states and 15701 transitions. Word has length 43 [2022-01-10 17:55:52,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:52,460 INFO L470 AbstractCegarLoop]: Abstraction has 8394 states and 15701 transitions. [2022-01-10 17:55:52,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states 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 17:55:52,460 INFO L276 IsEmpty]: Start isEmpty. Operand 8394 states and 15701 transitions. [2022-01-10 17:55:52,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 17:55:52,463 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:52,463 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] [2022-01-10 17:55:52,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 17:55:52,463 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:55:52,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:52,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1320370179, now seen corresponding path program 1 times [2022-01-10 17:55:52,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:52,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78953081] [2022-01-10 17:55:52,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:52,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:52,534 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 17:55:52,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:52,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78953081] [2022-01-10 17:55:52,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78953081] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:52,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:52,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:52,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238051740] [2022-01-10 17:55:52,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:52,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:52,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:52,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:52,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:52,535 INFO L87 Difference]: Start difference. First operand 8394 states and 15701 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 17:55:52,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:52,793 INFO L93 Difference]: Finished difference Result 20205 states and 37832 transitions. [2022-01-10 17:55:52,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:52,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-01-10 17:55:52,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:52,938 INFO L225 Difference]: With dead ends: 20205 [2022-01-10 17:55:52,939 INFO L226 Difference]: Without dead ends: 15415 [2022-01-10 17:55:52,951 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 17:55:52,956 INFO L933 BasicCegarLoop]: 8891 mSDtfsCounter, 8833 mSDsluCounter, 6790 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8833 SdHoareTripleChecker+Valid, 15681 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:55:52,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8833 Valid, 15681 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:55:52,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15415 states. [2022-01-10 17:55:53,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15415 to 15413. [2022-01-10 17:55:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15413 states, 15408 states have (on average 1.8736370716510904) internal successors, (28869), 15412 states have internal predecessors, (28869), 0 states have call successors, (0), 0 states 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 17:55:53,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15413 states to 15413 states and 28869 transitions. [2022-01-10 17:55:53,263 INFO L78 Accepts]: Start accepts. Automaton has 15413 states and 28869 transitions. Word has length 45 [2022-01-10 17:55:53,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:53,263 INFO L470 AbstractCegarLoop]: Abstraction has 15413 states and 28869 transitions. [2022-01-10 17:55:53,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 17:55:53,264 INFO L276 IsEmpty]: Start isEmpty. Operand 15413 states and 28869 transitions. [2022-01-10 17:55:53,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 17:55:53,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:53,265 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] [2022-01-10 17:55:53,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 17:55:53,266 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:55:53,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:53,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1868554440, now seen corresponding path program 1 times [2022-01-10 17:55:53,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:53,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246037878] [2022-01-10 17:55:53,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:53,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:53,322 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 17:55:53,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:53,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246037878] [2022-01-10 17:55:53,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246037878] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:53,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:53,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:53,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809872866] [2022-01-10 17:55:53,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:53,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:53,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:53,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:53,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:53,324 INFO L87 Difference]: Start difference. First operand 15413 states and 28869 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states 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 17:55:53,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:53,698 INFO L93 Difference]: Finished difference Result 38531 states and 72189 transitions. [2022-01-10 17:55:53,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:53,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2022-01-10 17:55:53,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:53,772 INFO L225 Difference]: With dead ends: 38531 [2022-01-10 17:55:53,772 INFO L226 Difference]: Without dead ends: 28984 [2022-01-10 17:55:53,798 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 17:55:53,798 INFO L933 BasicCegarLoop]: 8891 mSDtfsCounter, 8821 mSDsluCounter, 6793 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8821 SdHoareTripleChecker+Valid, 15684 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:55:53,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8821 Valid, 15684 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:55:53,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28984 states. [2022-01-10 17:55:54,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28984 to 28980. [2022-01-10 17:55:54,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28980 states, 28975 states have (on average 1.8744089732528042) internal successors, (54311), 28979 states have internal predecessors, (54311), 0 states have call successors, (0), 0 states 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 17:55:54,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28980 states to 28980 states and 54311 transitions. [2022-01-10 17:55:54,466 INFO L78 Accepts]: Start accepts. Automaton has 28980 states and 54311 transitions. Word has length 46 [2022-01-10 17:55:54,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:54,469 INFO L470 AbstractCegarLoop]: Abstraction has 28980 states and 54311 transitions. [2022-01-10 17:55:54,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states 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 17:55:54,469 INFO L276 IsEmpty]: Start isEmpty. Operand 28980 states and 54311 transitions. [2022-01-10 17:55:54,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 17:55:54,472 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:54,472 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] [2022-01-10 17:55:54,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 17:55:54,472 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:55:54,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:54,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2090637262, now seen corresponding path program 1 times [2022-01-10 17:55:54,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:54,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289334974] [2022-01-10 17:55:54,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:54,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:54,540 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 17:55:54,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:54,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289334974] [2022-01-10 17:55:54,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289334974] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:54,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:54,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:54,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80670673] [2022-01-10 17:55:54,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:54,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:54,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:54,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:54,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:54,542 INFO L87 Difference]: Start difference. First operand 28980 states and 54311 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states 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 17:55:55,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:55,563 INFO L93 Difference]: Finished difference Result 74219 states and 139078 transitions. [2022-01-10 17:55:55,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:55,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2022-01-10 17:55:55,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:55,728 INFO L225 Difference]: With dead ends: 74219 [2022-01-10 17:55:55,728 INFO L226 Difference]: Without dead ends: 55177 [2022-01-10 17:55:55,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:55,756 INFO L933 BasicCegarLoop]: 8891 mSDtfsCounter, 8820 mSDsluCounter, 6796 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8820 SdHoareTripleChecker+Valid, 15687 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:55:55,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8820 Valid, 15687 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:55:55,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55177 states. [2022-01-10 17:55:56,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55177 to 55171. [2022-01-10 17:55:56,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55171 states, 55166 states have (on average 1.874433527897618) internal successors, (103405), 55170 states have internal predecessors, (103405), 0 states have call successors, (0), 0 states 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 17:55:56,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55171 states to 55171 states and 103405 transitions. [2022-01-10 17:55:56,913 INFO L78 Accepts]: Start accepts. Automaton has 55171 states and 103405 transitions. Word has length 47 [2022-01-10 17:55:56,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:55:56,914 INFO L470 AbstractCegarLoop]: Abstraction has 55171 states and 103405 transitions. [2022-01-10 17:55:56,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states 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 17:55:56,914 INFO L276 IsEmpty]: Start isEmpty. Operand 55171 states and 103405 transitions. [2022-01-10 17:55:56,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-10 17:55:56,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:55:56,916 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] [2022-01-10 17:55:56,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 17:55:56,917 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:55:56,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:55:56,917 INFO L85 PathProgramCache]: Analyzing trace with hash 385270294, now seen corresponding path program 1 times [2022-01-10 17:55:56,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:55:56,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184739578] [2022-01-10 17:55:56,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:55:56,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:55:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:55:57,149 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 17:55:57,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:55:57,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184739578] [2022-01-10 17:55:57,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184739578] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:55:57,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:55:57,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:55:57,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927197666] [2022-01-10 17:55:57,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:55:57,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:55:57,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:55:57,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:55:57,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:55:57,152 INFO L87 Difference]: Start difference. First operand 55171 states and 103405 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states 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 17:55:58,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:55:58,536 INFO L93 Difference]: Finished difference Result 143667 states and 269202 transitions. [2022-01-10 17:55:58,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:55:58,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-01-10 17:55:58,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:55:58,830 INFO L225 Difference]: With dead ends: 143667 [2022-01-10 17:55:58,830 INFO L226 Difference]: Without dead ends: 105667 [2022-01-10 17:55:59,031 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 17:55:59,032 INFO L933 BasicCegarLoop]: 8892 mSDtfsCounter, 8819 mSDsluCounter, 6799 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8819 SdHoareTripleChecker+Valid, 15691 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:55:59,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8819 Valid, 15691 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:55:59,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105667 states. [2022-01-10 17:56:00,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105667 to 105659. [2022-01-10 17:56:00,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105659 states, 105654 states have (on average 1.8740132886592085) internal successors, (197997), 105658 states have internal predecessors, (197997), 0 states have call successors, (0), 0 states 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 17:56:01,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105659 states to 105659 states and 197997 transitions. [2022-01-10 17:56:01,287 INFO L78 Accepts]: Start accepts. Automaton has 105659 states and 197997 transitions. Word has length 48 [2022-01-10 17:56:01,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:01,287 INFO L470 AbstractCegarLoop]: Abstraction has 105659 states and 197997 transitions. [2022-01-10 17:56:01,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states 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 17:56:01,287 INFO L276 IsEmpty]: Start isEmpty. Operand 105659 states and 197997 transitions. [2022-01-10 17:56:01,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 17:56:01,328 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:01,328 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 17:56:01,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 17:56:01,329 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:01,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:01,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1776288931, now seen corresponding path program 1 times [2022-01-10 17:56:01,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:01,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907680608] [2022-01-10 17:56:01,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:01,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:01,372 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 17:56:01,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:01,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907680608] [2022-01-10 17:56:01,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907680608] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:01,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:01,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:01,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899086285] [2022-01-10 17:56:01,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:01,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:01,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:01,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:01,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:01,374 INFO L87 Difference]: Start difference. First operand 105659 states and 197997 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 17:56:04,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:04,206 INFO L93 Difference]: Finished difference Result 216022 states and 404653 transitions. [2022-01-10 17:56:04,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:04,207 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 17:56:04,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:04,442 INFO L225 Difference]: With dead ends: 216022 [2022-01-10 17:56:04,442 INFO L226 Difference]: Without dead ends: 112193 [2022-01-10 17:56:04,516 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 17:56:04,517 INFO L933 BasicCegarLoop]: 9851 mSDtfsCounter, 6985 mSDsluCounter, 4095 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6985 SdHoareTripleChecker+Valid, 13946 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:04,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6985 Valid, 13946 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 17:56:04,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112193 states. [2022-01-10 17:56:06,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112193 to 105659. [2022-01-10 17:56:06,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105659 states, 105654 states have (on average 1.8483635262271187) internal successors, (195287), 105658 states have internal predecessors, (195287), 0 states have call successors, (0), 0 states 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 17:56:06,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105659 states to 105659 states and 195287 transitions. [2022-01-10 17:56:06,999 INFO L78 Accepts]: Start accepts. Automaton has 105659 states and 195287 transitions. Word has length 108 [2022-01-10 17:56:07,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:07,003 INFO L470 AbstractCegarLoop]: Abstraction has 105659 states and 195287 transitions. [2022-01-10 17:56:07,003 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 17:56:07,003 INFO L276 IsEmpty]: Start isEmpty. Operand 105659 states and 195287 transitions. [2022-01-10 17:56:07,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 17:56:07,046 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:07,046 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 17:56:07,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 17:56:07,046 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 17:56:07,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:07,047 INFO L85 PathProgramCache]: Analyzing trace with hash 698960143, now seen corresponding path program 1 times [2022-01-10 17:56:07,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:07,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482138245] [2022-01-10 17:56:07,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:07,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:07,143 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 17:56:07,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:07,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482138245] [2022-01-10 17:56:07,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482138245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:07,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:07,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:07,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315077737] [2022-01-10 17:56:07,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:07,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:07,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:07,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:07,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:07,145 INFO L87 Difference]: Start difference. First operand 105659 states and 195287 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 17:56:10,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:10,190 INFO L93 Difference]: Finished difference Result 219924 states and 406651 transitions. [2022-01-10 17:56:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:10,191 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 17:56:10,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:10,473 INFO L225 Difference]: With dead ends: 219924 [2022-01-10 17:56:10,474 INFO L226 Difference]: Without dead ends: 118667 [2022-01-10 17:56:10,572 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 17:56:10,573 INFO L933 BasicCegarLoop]: 10863 mSDtfsCounter, 6436 mSDsluCounter, 4731 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6436 SdHoareTripleChecker+Valid, 15594 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:10,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6436 Valid, 15594 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 17:56:10,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118667 states. [2022-01-10 17:56:12,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118667 to 105659. [2022-01-10 17:56:12,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105659 states, 105654 states have (on average 1.8263104094497131) internal successors, (192957), 105658 states have internal predecessors, (192957), 0 states have call successors, (0), 0 states 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 17:56:12,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105659 states to 105659 states and 192957 transitions. [2022-01-10 17:56:12,954 INFO L78 Accepts]: Start accepts. Automaton has 105659 states and 192957 transitions. Word has length 113 [2022-01-10 17:56:12,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:12,959 INFO L470 AbstractCegarLoop]: Abstraction has 105659 states and 192957 transitions. [2022-01-10 17:56:12,965 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 17:56:12,965 INFO L276 IsEmpty]: Start isEmpty. Operand 105659 states and 192957 transitions. [2022-01-10 17:56:12,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 17:56:12,998 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:12,999 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 17:56:12,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 17:56:12,999 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 17:56:12,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:12,999 INFO L85 PathProgramCache]: Analyzing trace with hash -248519579, now seen corresponding path program 1 times [2022-01-10 17:56:13,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:13,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128986295] [2022-01-10 17:56:13,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:13,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:13,144 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 17:56:13,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:13,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128986295] [2022-01-10 17:56:13,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128986295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:13,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:13,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:13,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825965468] [2022-01-10 17:56:13,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:13,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:13,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:13,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:13,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:13,146 INFO L87 Difference]: Start difference. First operand 105659 states and 192957 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 17:56:15,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:15,833 INFO L93 Difference]: Finished difference Result 223172 states and 408515 transitions. [2022-01-10 17:56:15,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:15,833 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 17:56:15,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:16,071 INFO L225 Difference]: With dead ends: 223172 [2022-01-10 17:56:16,071 INFO L226 Difference]: Without dead ends: 126807 [2022-01-10 17:56:16,122 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 17:56:16,122 INFO L933 BasicCegarLoop]: 11659 mSDtfsCounter, 6131 mSDsluCounter, 5367 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6131 SdHoareTripleChecker+Valid, 17026 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:16,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6131 Valid, 17026 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 17:56:16,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126807 states. [2022-01-10 17:56:17,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126807 to 105659. [2022-01-10 17:56:18,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105659 states, 105654 states have (on average 1.808800424025593) internal successors, (191107), 105658 states have internal predecessors, (191107), 0 states have call successors, (0), 0 states 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 17:56:18,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105659 states to 105659 states and 191107 transitions. [2022-01-10 17:56:18,229 INFO L78 Accepts]: Start accepts. Automaton has 105659 states and 191107 transitions. Word has length 117 [2022-01-10 17:56:18,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:18,229 INFO L470 AbstractCegarLoop]: Abstraction has 105659 states and 191107 transitions. [2022-01-10 17:56:18,229 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 17:56:18,229 INFO L276 IsEmpty]: Start isEmpty. Operand 105659 states and 191107 transitions. [2022-01-10 17:56:18,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 17:56:18,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:18,263 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 17:56:18,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 17:56:18,263 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 17:56:18,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:18,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1402889251, now seen corresponding path program 1 times [2022-01-10 17:56:18,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:18,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168359449] [2022-01-10 17:56:18,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:18,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:18,308 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 17:56:18,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:18,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168359449] [2022-01-10 17:56:18,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168359449] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:18,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:18,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:18,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660333999] [2022-01-10 17:56:18,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:18,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:18,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:18,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:18,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:18,309 INFO L87 Difference]: Start difference. First operand 105659 states and 191107 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 17:56:21,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:21,242 INFO L93 Difference]: Finished difference Result 226060 states and 411139 transitions. [2022-01-10 17:56:21,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:21,243 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 17:56:21,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:21,578 INFO L225 Difference]: With dead ends: 226060 [2022-01-10 17:56:21,579 INFO L226 Difference]: Without dead ends: 136317 [2022-01-10 17:56:21,691 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 17:56:21,691 INFO L933 BasicCegarLoop]: 12435 mSDtfsCounter, 5866 mSDsluCounter, 6003 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5866 SdHoareTripleChecker+Valid, 18438 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:21,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5866 Valid, 18438 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 17:56:21,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136317 states. [2022-01-10 17:56:23,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136317 to 105659. [2022-01-10 17:56:23,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105659 states, 105654 states have (on average 1.796780055653359) internal successors, (189837), 105658 states have internal predecessors, (189837), 0 states have call successors, (0), 0 states 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 17:56:24,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105659 states to 105659 states and 189837 transitions. [2022-01-10 17:56:24,063 INFO L78 Accepts]: Start accepts. Automaton has 105659 states and 189837 transitions. Word has length 120 [2022-01-10 17:56:24,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:24,064 INFO L470 AbstractCegarLoop]: Abstraction has 105659 states and 189837 transitions. [2022-01-10 17:56:24,064 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 17:56:24,064 INFO L276 IsEmpty]: Start isEmpty. Operand 105659 states and 189837 transitions. [2022-01-10 17:56:24,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 17:56:24,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:24,119 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 17:56:24,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 17:56:24,119 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 17:56:24,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:24,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1440677947, now seen corresponding path program 1 times [2022-01-10 17:56:24,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:24,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165032149] [2022-01-10 17:56:24,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:24,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:24,429 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 17:56:24,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:24,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165032149] [2022-01-10 17:56:24,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165032149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:24,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:24,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:24,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342712678] [2022-01-10 17:56:24,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:24,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:24,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:24,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:24,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:24,430 INFO L87 Difference]: Start difference. First operand 105659 states and 189837 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 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 17:56:27,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:27,324 INFO L93 Difference]: Finished difference Result 228876 states and 415181 transitions. [2022-01-10 17:56:27,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:27,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 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 17:56:27,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:27,648 INFO L225 Difference]: With dead ends: 228876 [2022-01-10 17:56:27,648 INFO L226 Difference]: Without dead ends: 146443 [2022-01-10 17:56:27,740 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 17:56:27,741 INFO L933 BasicCegarLoop]: 13191 mSDtfsCounter, 5641 mSDsluCounter, 6639 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5641 SdHoareTripleChecker+Valid, 19830 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:27,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5641 Valid, 19830 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 17:56:27,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146443 states. [2022-01-10 17:56:29,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146443 to 105659. [2022-01-10 17:56:30,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105659 states, 105654 states have (on average 1.790722547182312) internal successors, (189197), 105658 states have internal predecessors, (189197), 0 states have call successors, (0), 0 states 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 17:56:30,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105659 states to 105659 states and 189197 transitions. [2022-01-10 17:56:30,281 INFO L78 Accepts]: Start accepts. Automaton has 105659 states and 189197 transitions. Word has length 122 [2022-01-10 17:56:30,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:30,282 INFO L470 AbstractCegarLoop]: Abstraction has 105659 states and 189197 transitions. [2022-01-10 17:56:30,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 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 17:56:30,282 INFO L276 IsEmpty]: Start isEmpty. Operand 105659 states and 189197 transitions. [2022-01-10 17:56:30,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 17:56:30,319 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:30,319 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 17:56:30,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 17:56:30,319 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 17:56:30,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:30,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1823694026, now seen corresponding path program 1 times [2022-01-10 17:56:30,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:30,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726826437] [2022-01-10 17:56:30,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:30,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:30,424 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 17:56:30,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:30,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726826437] [2022-01-10 17:56:30,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726826437] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:30,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:30,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:56:30,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767646176] [2022-01-10 17:56:30,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:30,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:56:30,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:30,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:56:30,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:56:30,426 INFO L87 Difference]: Start difference. First operand 105659 states and 189197 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 17:56:34,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:34,309 INFO L93 Difference]: Finished difference Result 316877 states and 567469 transitions. [2022-01-10 17:56:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:56:34,310 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 17:56:34,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:34,722 INFO L225 Difference]: With dead ends: 316877 [2022-01-10 17:56:34,723 INFO L226 Difference]: Without dead ends: 211247 [2022-01-10 17:56:34,805 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 17:56:34,808 INFO L933 BasicCegarLoop]: 17093 mSDtfsCounter, 25634 mSDsluCounter, 8581 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25634 SdHoareTripleChecker+Valid, 25674 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:34,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25634 Valid, 25674 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:34,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211247 states. [2022-01-10 17:56:37,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211247 to 105638. [2022-01-10 17:56:38,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105638 states, 105633 states have (on average 1.7908134768490906) internal successors, (189169), 105637 states have internal predecessors, (189169), 0 states have call successors, (0), 0 states 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 17:56:38,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105638 states to 105638 states and 189169 transitions. [2022-01-10 17:56:38,364 INFO L78 Accepts]: Start accepts. Automaton has 105638 states and 189169 transitions. Word has length 122 [2022-01-10 17:56:38,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:38,364 INFO L470 AbstractCegarLoop]: Abstraction has 105638 states and 189169 transitions. [2022-01-10 17:56:38,365 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 17:56:38,365 INFO L276 IsEmpty]: Start isEmpty. Operand 105638 states and 189169 transitions. [2022-01-10 17:56:38,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 17:56:38,405 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:38,406 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 17:56:38,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 17:56:38,406 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 17:56:38,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:38,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1553936835, now seen corresponding path program 1 times [2022-01-10 17:56:38,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:38,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621643606] [2022-01-10 17:56:38,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:38,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:38,547 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 17:56:38,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:38,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621643606] [2022-01-10 17:56:38,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621643606] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:38,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:38,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:56:38,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952466573] [2022-01-10 17:56:38,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:38,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:56:38,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:38,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:56:38,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:56:38,549 INFO L87 Difference]: Start difference. First operand 105638 states and 189169 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)