/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_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:47:07,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:47:07,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:47:07,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:47:07,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:47:07,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:47:07,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:47:07,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:47:07,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:47:07,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:47:07,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:47:07,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:47:07,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:47:07,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:47:07,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:47:07,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:47:07,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:47:07,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:47:07,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:47:07,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:47:07,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:47:07,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:47:07,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:47:07,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:47:07,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:47:07,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:47:07,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:47:07,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:47:07,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:47:07,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:47:07,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:47:07,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:47:07,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:47:07,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:47:07,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:47:07,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:47:07,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:47:07,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:47:07,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:47:07,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:47:07,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:47:07,314 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:47:07,332 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:47:07,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:47:07,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:47:07,333 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:47:07,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:47:07,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:47:07,334 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:47:07,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:47:07,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:47:07,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:47:07,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:47:07,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:47:07,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:47:07,335 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:47:07,335 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:47:07,335 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:47:07,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:47:07,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:47:07,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:47:07,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:47:07,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:47:07,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:47:07,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:47:07,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:47:07,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:47:07,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:47:07,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:47:07,336 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:47:07,336 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:47:07,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:47:07,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:47:07,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:47:07,337 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:47:07,337 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:47:07,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:47:07,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:47:07,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:47:07,541 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:47:07,541 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:47:07,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product19.cil.c [2022-01-10 23:47:07,586 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/342b22d16/ec83be28eef84ba98873606d62c0c52f/FLAGa5510af89 [2022-01-10 23:47:08,109 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:47:08,110 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product19.cil.c [2022-01-10 23:47:08,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/342b22d16/ec83be28eef84ba98873606d62c0c52f/FLAGa5510af89 [2022-01-10 23:47:08,563 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/342b22d16/ec83be28eef84ba98873606d62c0c52f [2022-01-10 23:47:08,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:47:08,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:47:08,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:47:08,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:47:08,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:47:08,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:47:08" (1/1) ... [2022-01-10 23:47:08,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc668c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:08, skipping insertion in model container [2022-01-10 23:47:08,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:47:08" (1/1) ... [2022-01-10 23:47:08,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:47:08,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:47:09,059 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_spec3_product19.cil.c[55726,55739] [2022-01-10 23:47:09,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:47:09,099 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:47:09,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:47:09,162 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_spec3_product19.cil.c[55726,55739] [2022-01-10 23:47:09,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:47:09,178 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:47:09,219 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_spec3_product19.cil.c[55726,55739] [2022-01-10 23:47:09,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:47:09,246 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:47:09,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:09 WrapperNode [2022-01-10 23:47:09,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:47:09,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:47:09,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:47:09,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:47:09,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:09" (1/1) ... [2022-01-10 23:47:09,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:09" (1/1) ... [2022-01-10 23:47:09,476 INFO L137 Inliner]: procedures = 94, calls = 346, calls flagged for inlining = 199, calls inlined = 748, statements flattened = 23025 [2022-01-10 23:47:09,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:47:09,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:47:09,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:47:09,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:47:09,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:09" (1/1) ... [2022-01-10 23:47:09,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:09" (1/1) ... [2022-01-10 23:47:09,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:09" (1/1) ... [2022-01-10 23:47:09,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:09" (1/1) ... [2022-01-10 23:47:09,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:09" (1/1) ... [2022-01-10 23:47:09,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:09" (1/1) ... [2022-01-10 23:47:09,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:09" (1/1) ... [2022-01-10 23:47:09,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:47:09,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:47:09,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:47:09,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:47:09,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:09" (1/1) ... [2022-01-10 23:47:09,947 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:47:09,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:47:09,973 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 23:47:09,975 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 23:47:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:47:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:47:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:47:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:47:10,128 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:47:10,129 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:47:17,321 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:47:17,361 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:47:17,362 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:47:17,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:47:17 BoogieIcfgContainer [2022-01-10 23:47:17,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:47:17,371 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:47:17,371 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:47:17,373 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:47:17,375 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:47:17" (1/1) ... [2022-01-10 23:47:18,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:47:18 BasicIcfg [2022-01-10 23:47:18,684 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:47:18,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:47:18,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:47:18,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:47:18,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:47:08" (1/4) ... [2022-01-10 23:47:18,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8e498f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:47:18, skipping insertion in model container [2022-01-10 23:47:18,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:09" (2/4) ... [2022-01-10 23:47:18,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8e498f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:47:18, skipping insertion in model container [2022-01-10 23:47:18,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:47:17" (3/4) ... [2022-01-10 23:47:18,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8e498f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:47:18, skipping insertion in model container [2022-01-10 23:47:18,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:47:18" (4/4) ... [2022-01-10 23:47:18,705 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product19.cil.cTransformedIcfg [2022-01-10 23:47:18,709 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:47:18,709 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-10 23:47:18,765 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:47:18,771 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 23:47:18,771 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-10 23:47:18,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 6443 states, 6432 states have (on average 1.8664490049751243) internal successors, (12005), 6442 states have internal predecessors, (12005), 0 states have call successors, (0), 0 states 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 23:47:18,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 23:47:18,872 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:18,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:47:18,873 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:18,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:18,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1681586896, now seen corresponding path program 1 times [2022-01-10 23:47:18,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:18,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776424808] [2022-01-10 23:47:18,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:18,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:19,245 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 23:47:19,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:19,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776424808] [2022-01-10 23:47:19,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776424808] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:19,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:19,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:47:19,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525786502] [2022-01-10 23:47:19,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:19,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:47:19,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:19,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:47:19,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:47:19,318 INFO L87 Difference]: Start difference. First operand has 6443 states, 6432 states have (on average 1.8664490049751243) internal successors, (12005), 6442 states have internal predecessors, (12005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 23:47:20,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:20,714 INFO L93 Difference]: Finished difference Result 16368 states and 30492 transitions. [2022-01-10 23:47:20,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:47:20,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-01-10 23:47:20,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:20,905 INFO L225 Difference]: With dead ends: 16368 [2022-01-10 23:47:20,905 INFO L226 Difference]: Without dead ends: 10940 [2022-01-10 23:47:20,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 23:47:20,929 INFO L933 BasicCegarLoop]: 19770 mSDtfsCounter, 10528 mSDsluCounter, 9071 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10528 SdHoareTripleChecker+Valid, 28841 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:20,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10528 Valid, 28841 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 23:47:20,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10940 states. [2022-01-10 23:47:21,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10940 to 10884. [2022-01-10 23:47:21,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10884 states, 10874 states have (on average 1.8457789221997425) internal successors, (20071), 10883 states have internal predecessors, (20071), 0 states have call successors, (0), 0 states 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 23:47:21,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10884 states to 10884 states and 20071 transitions. [2022-01-10 23:47:21,289 INFO L78 Accepts]: Start accepts. Automaton has 10884 states and 20071 transitions. Word has length 52 [2022-01-10 23:47:21,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:21,289 INFO L470 AbstractCegarLoop]: Abstraction has 10884 states and 20071 transitions. [2022-01-10 23:47:21,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 23:47:21,290 INFO L276 IsEmpty]: Start isEmpty. Operand 10884 states and 20071 transitions. [2022-01-10 23:47:21,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 23:47:21,292 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:21,292 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] [2022-01-10 23:47:21,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:47:21,292 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:21,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:21,293 INFO L85 PathProgramCache]: Analyzing trace with hash -870570065, now seen corresponding path program 1 times [2022-01-10 23:47:21,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:21,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507987572] [2022-01-10 23:47:21,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:21,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:21,368 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 23:47:21,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:21,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507987572] [2022-01-10 23:47:21,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507987572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:21,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:21,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:47:21,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700585430] [2022-01-10 23:47:21,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:21,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:47:21,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:21,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:47:21,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:47:21,371 INFO L87 Difference]: Start difference. First operand 10884 states and 20071 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 23:47:21,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:21,894 INFO L93 Difference]: Finished difference Result 21103 states and 39103 transitions. [2022-01-10 23:47:21,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:47:21,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-01-10 23:47:21,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:21,963 INFO L225 Difference]: With dead ends: 21103 [2022-01-10 23:47:21,963 INFO L226 Difference]: Without dead ends: 15968 [2022-01-10 23:47:21,974 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 23:47:21,975 INFO L933 BasicCegarLoop]: 16376 mSDtfsCounter, 11569 mSDsluCounter, 9431 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11569 SdHoareTripleChecker+Valid, 25807 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:21,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11569 Valid, 25807 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:47:21,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15968 states. [2022-01-10 23:47:22,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15968 to 15940. [2022-01-10 23:47:22,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15940 states, 15930 states have (on average 1.8512241054613936) internal successors, (29490), 15939 states have internal predecessors, (29490), 0 states have call successors, (0), 0 states 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 23:47:22,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15940 states to 15940 states and 29490 transitions. [2022-01-10 23:47:22,463 INFO L78 Accepts]: Start accepts. Automaton has 15940 states and 29490 transitions. Word has length 52 [2022-01-10 23:47:22,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:22,464 INFO L470 AbstractCegarLoop]: Abstraction has 15940 states and 29490 transitions. [2022-01-10 23:47:22,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 23:47:22,464 INFO L276 IsEmpty]: Start isEmpty. Operand 15940 states and 29490 transitions. [2022-01-10 23:47:22,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 23:47:22,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:22,466 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] [2022-01-10 23:47:22,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:47:22,466 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:22,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:22,467 INFO L85 PathProgramCache]: Analyzing trace with hash 16933616, now seen corresponding path program 1 times [2022-01-10 23:47:22,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:22,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585021637] [2022-01-10 23:47:22,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:22,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:22,528 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 23:47:22,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:22,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585021637] [2022-01-10 23:47:22,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585021637] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:22,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:22,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:47:22,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554243048] [2022-01-10 23:47:22,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:22,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:47:22,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:22,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:47:22,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:47:22,530 INFO L87 Difference]: Start difference. First operand 15940 states and 29490 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 23:47:23,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:23,067 INFO L93 Difference]: Finished difference Result 45417 states and 84106 transitions. [2022-01-10 23:47:23,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:47:23,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-01-10 23:47:23,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:23,145 INFO L225 Difference]: With dead ends: 45417 [2022-01-10 23:47:23,145 INFO L226 Difference]: Without dead ends: 30661 [2022-01-10 23:47:23,172 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 23:47:23,174 INFO L933 BasicCegarLoop]: 11872 mSDtfsCounter, 10757 mSDsluCounter, 11594 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10757 SdHoareTripleChecker+Valid, 23466 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:23,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10757 Valid, 23466 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:47:23,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30661 states. [2022-01-10 23:47:23,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30661 to 30328. [2022-01-10 23:47:23,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30328 states, 30318 states have (on average 1.8525628339600237) internal successors, (56166), 30327 states have internal predecessors, (56166), 0 states have call successors, (0), 0 states 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 23:47:23,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30328 states to 30328 states and 56166 transitions. [2022-01-10 23:47:23,993 INFO L78 Accepts]: Start accepts. Automaton has 30328 states and 56166 transitions. Word has length 52 [2022-01-10 23:47:23,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:23,995 INFO L470 AbstractCegarLoop]: Abstraction has 30328 states and 56166 transitions. [2022-01-10 23:47:23,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 23:47:23,996 INFO L276 IsEmpty]: Start isEmpty. Operand 30328 states and 56166 transitions. [2022-01-10 23:47:23,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 23:47:23,998 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:23,998 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] [2022-01-10 23:47:23,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:47:23,998 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:23,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:23,999 INFO L85 PathProgramCache]: Analyzing trace with hash 803304041, now seen corresponding path program 1 times [2022-01-10 23:47:23,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:23,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430028747] [2022-01-10 23:47:23,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:24,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:24,087 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 23:47:24,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:24,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430028747] [2022-01-10 23:47:24,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430028747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:24,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:24,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:47:24,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676534147] [2022-01-10 23:47:24,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:24,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:47:24,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:24,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:47:24,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:47:24,090 INFO L87 Difference]: Start difference. First operand 30328 states and 56166 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 23:47:25,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:25,674 INFO L93 Difference]: Finished difference Result 121003 states and 224072 transitions. [2022-01-10 23:47:25,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:47:25,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-01-10 23:47:25,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:25,966 INFO L225 Difference]: With dead ends: 121003 [2022-01-10 23:47:25,967 INFO L226 Difference]: Without dead ends: 90702 [2022-01-10 23:47:26,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:47:26,039 INFO L933 BasicCegarLoop]: 23201 mSDtfsCounter, 34654 mSDsluCounter, 34831 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34654 SdHoareTripleChecker+Valid, 58032 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:26,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34654 Valid, 58032 Invalid, 77 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:47:26,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90702 states. [2022-01-10 23:47:27,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90702 to 30348. [2022-01-10 23:47:27,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30348 states, 30338 states have (on average 1.8520007910870855) internal successors, (56186), 30347 states have internal predecessors, (56186), 0 states have call successors, (0), 0 states 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 23:47:27,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30348 states to 30348 states and 56186 transitions. [2022-01-10 23:47:27,188 INFO L78 Accepts]: Start accepts. Automaton has 30348 states and 56186 transitions. Word has length 52 [2022-01-10 23:47:27,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:27,188 INFO L470 AbstractCegarLoop]: Abstraction has 30348 states and 56186 transitions. [2022-01-10 23:47:27,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 23:47:27,188 INFO L276 IsEmpty]: Start isEmpty. Operand 30348 states and 56186 transitions. [2022-01-10 23:47:27,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 23:47:27,191 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:27,191 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] [2022-01-10 23:47:27,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:47:27,191 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:27,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:27,194 INFO L85 PathProgramCache]: Analyzing trace with hash -2011533318, now seen corresponding path program 1 times [2022-01-10 23:47:27,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:27,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953641935] [2022-01-10 23:47:27,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:27,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:27,262 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 23:47:27,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:27,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953641935] [2022-01-10 23:47:27,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953641935] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:27,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:27,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:47:27,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10271517] [2022-01-10 23:47:27,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:27,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:47:27,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:27,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:47:27,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:47:27,264 INFO L87 Difference]: Start difference. First operand 30348 states and 56186 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states 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 23:47:27,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:27,880 INFO L93 Difference]: Finished difference Result 60545 states and 112088 transitions. [2022-01-10 23:47:27,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:47:27,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-01-10 23:47:27,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:27,962 INFO L225 Difference]: With dead ends: 60545 [2022-01-10 23:47:27,962 INFO L226 Difference]: Without dead ends: 30212 [2022-01-10 23:47:28,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 23:47:28,084 INFO L933 BasicCegarLoop]: 11562 mSDtfsCounter, 11554 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11554 SdHoareTripleChecker+Valid, 11570 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:28,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11554 Valid, 11570 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:47:28,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30212 states. [2022-01-10 23:47:28,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30212 to 30212. [2022-01-10 23:47:28,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30212 states, 30202 states have (on average 1.851334348718628) internal successors, (55914), 30211 states have internal predecessors, (55914), 0 states have call successors, (0), 0 states 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 23:47:28,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30212 states to 30212 states and 55914 transitions. [2022-01-10 23:47:28,870 INFO L78 Accepts]: Start accepts. Automaton has 30212 states and 55914 transitions. Word has length 53 [2022-01-10 23:47:28,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:28,876 INFO L470 AbstractCegarLoop]: Abstraction has 30212 states and 55914 transitions. [2022-01-10 23:47:28,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states 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 23:47:28,876 INFO L276 IsEmpty]: Start isEmpty. Operand 30212 states and 55914 transitions. [2022-01-10 23:47:28,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 23:47:28,878 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:28,879 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] [2022-01-10 23:47:28,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:47:28,879 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:28,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:28,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1056243234, now seen corresponding path program 1 times [2022-01-10 23:47:28,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:28,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82707168] [2022-01-10 23:47:28,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:28,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:29,010 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 23:47:29,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:29,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82707168] [2022-01-10 23:47:29,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82707168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:29,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:29,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:47:29,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965089489] [2022-01-10 23:47:29,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:29,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:47:29,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:29,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:47:29,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:47:29,012 INFO L87 Difference]: Start difference. First operand 30212 states and 55914 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 23:47:29,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:29,664 INFO L93 Difference]: Finished difference Result 60402 states and 111799 transitions. [2022-01-10 23:47:29,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:47:29,664 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-01-10 23:47:29,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:29,728 INFO L225 Difference]: With dead ends: 60402 [2022-01-10 23:47:29,728 INFO L226 Difference]: Without dead ends: 30212 [2022-01-10 23:47:29,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:47:29,759 INFO L933 BasicCegarLoop]: 11548 mSDtfsCounter, 23100 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23100 SdHoareTripleChecker+Valid, 11596 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:29,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23100 Valid, 11596 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:47:29,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30212 states. [2022-01-10 23:47:30,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30212 to 30212. [2022-01-10 23:47:30,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30212 states, 30202 states have (on average 1.8512019071584662) internal successors, (55910), 30211 states have internal predecessors, (55910), 0 states have call successors, (0), 0 states 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 23:47:30,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30212 states to 30212 states and 55910 transitions. [2022-01-10 23:47:30,601 INFO L78 Accepts]: Start accepts. Automaton has 30212 states and 55910 transitions. Word has length 55 [2022-01-10 23:47:30,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:30,601 INFO L470 AbstractCegarLoop]: Abstraction has 30212 states and 55910 transitions. [2022-01-10 23:47:30,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 23:47:30,602 INFO L276 IsEmpty]: Start isEmpty. Operand 30212 states and 55910 transitions. [2022-01-10 23:47:30,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 23:47:30,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:30,604 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] [2022-01-10 23:47:30,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:47:30,604 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:30,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:30,604 INFO L85 PathProgramCache]: Analyzing trace with hash -900620274, now seen corresponding path program 1 times [2022-01-10 23:47:30,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:30,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284186813] [2022-01-10 23:47:30,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:30,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:30,681 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 23:47:30,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:30,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284186813] [2022-01-10 23:47:30,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284186813] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:30,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:30,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:47:30,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661586002] [2022-01-10 23:47:30,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:30,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:47:30,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:30,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:47:30,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:47:30,683 INFO L87 Difference]: Start difference. First operand 30212 states and 55910 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 23:47:31,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:31,438 INFO L93 Difference]: Finished difference Result 60396 states and 111781 transitions. [2022-01-10 23:47:31,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 23:47:31,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-01-10 23:47:31,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:31,594 INFO L225 Difference]: With dead ends: 60396 [2022-01-10 23:47:31,594 INFO L226 Difference]: Without dead ends: 30212 [2022-01-10 23:47:31,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:47:31,614 INFO L933 BasicCegarLoop]: 11530 mSDtfsCounter, 34617 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34617 SdHoareTripleChecker+Valid, 11563 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:31,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34617 Valid, 11563 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:47:31,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30212 states. [2022-01-10 23:47:32,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30212 to 30212. [2022-01-10 23:47:32,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30212 states, 30202 states have (on average 1.8510694655983047) internal successors, (55906), 30211 states have internal predecessors, (55906), 0 states have call successors, (0), 0 states 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 23:47:32,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30212 states to 30212 states and 55906 transitions. [2022-01-10 23:47:32,285 INFO L78 Accepts]: Start accepts. Automaton has 30212 states and 55906 transitions. Word has length 56 [2022-01-10 23:47:32,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:32,285 INFO L470 AbstractCegarLoop]: Abstraction has 30212 states and 55906 transitions. [2022-01-10 23:47:32,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 23:47:32,285 INFO L276 IsEmpty]: Start isEmpty. Operand 30212 states and 55906 transitions. [2022-01-10 23:47:32,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 23:47:32,287 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:32,287 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] [2022-01-10 23:47:32,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:47:32,287 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:32,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:32,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1306416115, now seen corresponding path program 1 times [2022-01-10 23:47:32,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:32,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952538131] [2022-01-10 23:47:32,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:32,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:32,366 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 23:47:32,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:32,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952538131] [2022-01-10 23:47:32,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952538131] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:32,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:32,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:47:32,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642036891] [2022-01-10 23:47:32,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:32,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:47:32,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:32,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:47:32,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:47:32,367 INFO L87 Difference]: Start difference. First operand 30212 states and 55906 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states 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 23:47:33,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:33,283 INFO L93 Difference]: Finished difference Result 60396 states and 111774 transitions. [2022-01-10 23:47:33,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 23:47:33,283 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-01-10 23:47:33,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:33,325 INFO L225 Difference]: With dead ends: 60396 [2022-01-10 23:47:33,325 INFO L226 Difference]: Without dead ends: 30212 [2022-01-10 23:47:33,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:47:33,338 INFO L933 BasicCegarLoop]: 11530 mSDtfsCounter, 23076 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23076 SdHoareTripleChecker+Valid, 11573 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:33,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23076 Valid, 11573 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:47:33,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30212 states. [2022-01-10 23:47:33,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30212 to 30212. [2022-01-10 23:47:34,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30212 states, 30202 states have (on average 1.850937024038143) internal successors, (55902), 30211 states have internal predecessors, (55902), 0 states have call successors, (0), 0 states 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 23:47:34,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30212 states to 30212 states and 55902 transitions. [2022-01-10 23:47:34,062 INFO L78 Accepts]: Start accepts. Automaton has 30212 states and 55902 transitions. Word has length 57 [2022-01-10 23:47:34,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:34,062 INFO L470 AbstractCegarLoop]: Abstraction has 30212 states and 55902 transitions. [2022-01-10 23:47:34,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states 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 23:47:34,062 INFO L276 IsEmpty]: Start isEmpty. Operand 30212 states and 55902 transitions. [2022-01-10 23:47:34,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 23:47:34,064 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:34,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:47:34,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:47:34,065 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:34,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:34,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1249569791, now seen corresponding path program 1 times [2022-01-10 23:47:34,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:34,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85735687] [2022-01-10 23:47:34,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:34,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:34,118 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 23:47:34,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:34,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85735687] [2022-01-10 23:47:34,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85735687] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:34,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:34,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 23:47:34,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562289735] [2022-01-10 23:47:34,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:34,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 23:47:34,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:34,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 23:47:34,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:47:34,120 INFO L87 Difference]: Start difference. First operand 30212 states and 55902 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:34,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:34,860 INFO L93 Difference]: Finished difference Result 60396 states and 111767 transitions. [2022-01-10 23:47:34,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 23:47:34,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-10 23:47:34,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:34,913 INFO L225 Difference]: With dead ends: 60396 [2022-01-10 23:47:34,913 INFO L226 Difference]: Without dead ends: 30212 [2022-01-10 23:47:34,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 23:47:34,938 INFO L933 BasicCegarLoop]: 11530 mSDtfsCounter, 34604 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34604 SdHoareTripleChecker+Valid, 11573 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:34,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34604 Valid, 11573 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:47:34,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30212 states. [2022-01-10 23:47:35,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30212 to 30212. [2022-01-10 23:47:35,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30212 states, 30202 states have (on average 1.8508045824779815) internal successors, (55898), 30211 states have internal predecessors, (55898), 0 states have call successors, (0), 0 states 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 23:47:35,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30212 states to 30212 states and 55898 transitions. [2022-01-10 23:47:35,670 INFO L78 Accepts]: Start accepts. Automaton has 30212 states and 55898 transitions. Word has length 58 [2022-01-10 23:47:35,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:35,670 INFO L470 AbstractCegarLoop]: Abstraction has 30212 states and 55898 transitions. [2022-01-10 23:47:35,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:35,671 INFO L276 IsEmpty]: Start isEmpty. Operand 30212 states and 55898 transitions. [2022-01-10 23:47:35,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 23:47:35,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:35,673 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] [2022-01-10 23:47:35,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:47:35,673 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:35,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:35,673 INFO L85 PathProgramCache]: Analyzing trace with hash 264281760, now seen corresponding path program 1 times [2022-01-10 23:47:35,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:35,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602438662] [2022-01-10 23:47:35,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:35,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:35,782 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 23:47:35,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:35,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602438662] [2022-01-10 23:47:35,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602438662] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:35,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:35,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:47:35,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235862351] [2022-01-10 23:47:35,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:35,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:47:35,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:35,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:47:35,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:47:35,783 INFO L87 Difference]: Start difference. First operand 30212 states and 55898 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 23:47:36,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:36,508 INFO L93 Difference]: Finished difference Result 60396 states and 111760 transitions. [2022-01-10 23:47:36,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 23:47:36,509 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2022-01-10 23:47:36,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:36,559 INFO L225 Difference]: With dead ends: 60396 [2022-01-10 23:47:36,559 INFO L226 Difference]: Without dead ends: 30212 [2022-01-10 23:47:36,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 23:47:36,592 INFO L933 BasicCegarLoop]: 11530 mSDtfsCounter, 34596 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34596 SdHoareTripleChecker+Valid, 11573 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:36,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34596 Valid, 11573 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:47:36,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30212 states. [2022-01-10 23:47:37,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30212 to 30212. [2022-01-10 23:47:37,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30212 states, 30202 states have (on average 1.85067214091782) internal successors, (55894), 30211 states have internal predecessors, (55894), 0 states have call successors, (0), 0 states 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 23:47:37,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30212 states to 30212 states and 55894 transitions. [2022-01-10 23:47:37,755 INFO L78 Accepts]: Start accepts. Automaton has 30212 states and 55894 transitions. Word has length 59 [2022-01-10 23:47:37,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:37,756 INFO L470 AbstractCegarLoop]: Abstraction has 30212 states and 55894 transitions. [2022-01-10 23:47:37,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 23:47:37,756 INFO L276 IsEmpty]: Start isEmpty. Operand 30212 states and 55894 transitions. [2022-01-10 23:47:37,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 23:47:37,758 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:37,758 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] [2022-01-10 23:47:37,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:47:37,758 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:37,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:37,759 INFO L85 PathProgramCache]: Analyzing trace with hash -299344908, now seen corresponding path program 1 times [2022-01-10 23:47:37,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:37,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768204695] [2022-01-10 23:47:37,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:37,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:37,830 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 23:47:37,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:37,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768204695] [2022-01-10 23:47:37,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768204695] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:37,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:37,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:47:37,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141802848] [2022-01-10 23:47:37,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:37,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:47:37,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:37,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:47:37,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:47:37,831 INFO L87 Difference]: Start difference. First operand 30212 states and 55894 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 23:47:43,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:43,149 INFO L93 Difference]: Finished difference Result 197448 states and 365156 transitions. [2022-01-10 23:47:43,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:47:43,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-01-10 23:47:43,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:43,475 INFO L225 Difference]: With dead ends: 197448 [2022-01-10 23:47:43,475 INFO L226 Difference]: Without dead ends: 168289 [2022-01-10 23:47:43,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:47:43,682 INFO L933 BasicCegarLoop]: 24335 mSDtfsCounter, 77168 mSDsluCounter, 64135 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77168 SdHoareTripleChecker+Valid, 88470 SdHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:43,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77168 Valid, 88470 Invalid, 1609 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [265 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 23:47:43,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168289 states. [2022-01-10 23:47:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168289 to 56876. [2022-01-10 23:47:45,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56876 states, 56866 states have (on average 1.8505785530897196) internal successors, (105235), 56875 states have internal predecessors, (105235), 0 states have call successors, (0), 0 states 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 23:47:45,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56876 states to 56876 states and 105235 transitions. [2022-01-10 23:47:45,991 INFO L78 Accepts]: Start accepts. Automaton has 56876 states and 105235 transitions. Word has length 60 [2022-01-10 23:47:45,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:45,992 INFO L470 AbstractCegarLoop]: Abstraction has 56876 states and 105235 transitions. [2022-01-10 23:47:45,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 23:47:45,992 INFO L276 IsEmpty]: Start isEmpty. Operand 56876 states and 105235 transitions. [2022-01-10 23:47:45,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 23:47:45,993 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:45,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:47:45,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:47:45,994 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:45,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:45,994 INFO L85 PathProgramCache]: Analyzing trace with hash 703549679, now seen corresponding path program 1 times [2022-01-10 23:47:45,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:45,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570035655] [2022-01-10 23:47:45,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:45,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:46,085 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 23:47:46,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:46,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570035655] [2022-01-10 23:47:46,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570035655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:46,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:46,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:47:46,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067355140] [2022-01-10 23:47:46,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:46,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:47:46,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:46,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:47:46,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:47:46,086 INFO L87 Difference]: Start difference. First operand 56876 states and 105235 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:48,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:48,275 INFO L93 Difference]: Finished difference Result 113818 states and 210331 transitions. [2022-01-10 23:47:48,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 23:47:48,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 23:47:48,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:48,380 INFO L225 Difference]: With dead ends: 113818 [2022-01-10 23:47:48,380 INFO L226 Difference]: Without dead ends: 57018 [2022-01-10 23:47:48,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:47:48,419 INFO L933 BasicCegarLoop]: 18484 mSDtfsCounter, 33637 mSDsluCounter, 29082 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33637 SdHoareTripleChecker+Valid, 47566 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:48,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33637 Valid, 47566 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 23:47:48,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57018 states. [2022-01-10 23:47:50,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57018 to 55839. [2022-01-10 23:47:50,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55839 states, 55829 states have (on average 1.8547708180336384) internal successors, (103550), 55838 states have internal predecessors, (103550), 0 states have call successors, (0), 0 states 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 23:47:50,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55839 states to 55839 states and 103550 transitions. [2022-01-10 23:47:50,305 INFO L78 Accepts]: Start accepts. Automaton has 55839 states and 103550 transitions. Word has length 61 [2022-01-10 23:47:50,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:50,305 INFO L470 AbstractCegarLoop]: Abstraction has 55839 states and 103550 transitions. [2022-01-10 23:47:50,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:50,306 INFO L276 IsEmpty]: Start isEmpty. Operand 55839 states and 103550 transitions. [2022-01-10 23:47:50,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 23:47:50,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:50,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:47:50,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 23:47:50,307 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:50,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:50,307 INFO L85 PathProgramCache]: Analyzing trace with hash 188764775, now seen corresponding path program 1 times [2022-01-10 23:47:50,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:50,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38344549] [2022-01-10 23:47:50,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:50,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:50,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:47:50,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:50,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38344549] [2022-01-10 23:47:50,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38344549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:50,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:50,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:47:50,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579842058] [2022-01-10 23:47:50,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:50,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:47:50,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:50,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:47:50,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:47:50,346 INFO L87 Difference]: Start difference. First operand 55839 states and 103550 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:53,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:53,913 INFO L93 Difference]: Finished difference Result 165522 states and 306861 transitions. [2022-01-10 23:47:53,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:47:53,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 23:47:53,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:54,126 INFO L225 Difference]: With dead ends: 165522 [2022-01-10 23:47:54,126 INFO L226 Difference]: Without dead ends: 109719 [2022-01-10 23:47:54,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 23:47:54,161 INFO L933 BasicCegarLoop]: 11391 mSDtfsCounter, 10835 mSDsluCounter, 10842 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10835 SdHoareTripleChecker+Valid, 22233 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:54,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10835 Valid, 22233 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 23:47:54,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109719 states. [2022-01-10 23:47:56,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109719 to 55603. [2022-01-10 23:47:56,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55603 states, 55593 states have (on average 1.8541363121256274) internal successors, (103077), 55602 states have internal predecessors, (103077), 0 states have call successors, (0), 0 states 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 23:47:56,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55603 states to 55603 states and 103077 transitions. [2022-01-10 23:47:56,619 INFO L78 Accepts]: Start accepts. Automaton has 55603 states and 103077 transitions. Word has length 61 [2022-01-10 23:47:56,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:56,619 INFO L470 AbstractCegarLoop]: Abstraction has 55603 states and 103077 transitions. [2022-01-10 23:47:56,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:56,619 INFO L276 IsEmpty]: Start isEmpty. Operand 55603 states and 103077 transitions. [2022-01-10 23:47:56,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 23:47:56,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:56,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:47:56,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 23:47:56,621 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:56,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:56,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1667490848, now seen corresponding path program 1 times [2022-01-10 23:47:56,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:56,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891470616] [2022-01-10 23:47:56,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:56,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:56,688 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 23:47:56,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:56,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891470616] [2022-01-10 23:47:56,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891470616] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:56,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:56,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:47:56,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904397181] [2022-01-10 23:47:56,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:56,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:47:56,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:56,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:47:56,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:47:56,690 INFO L87 Difference]: Start difference. First operand 55603 states and 103077 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:00,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:00,561 INFO L93 Difference]: Finished difference Result 165535 states and 307052 transitions. [2022-01-10 23:48:00,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:00,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 23:48:00,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:00,781 INFO L225 Difference]: With dead ends: 165535 [2022-01-10 23:48:00,781 INFO L226 Difference]: Without dead ends: 109971 [2022-01-10 23:48:00,817 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 23:48:00,817 INFO L933 BasicCegarLoop]: 11672 mSDtfsCounter, 10994 mSDsluCounter, 11224 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10994 SdHoareTripleChecker+Valid, 22896 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:00,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10994 Valid, 22896 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:48:00,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109971 states. [2022-01-10 23:48:03,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109971 to 55975. [2022-01-10 23:48:03,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55975 states, 55965 states have (on average 1.8514607343875638) internal successors, (103617), 55974 states have internal predecessors, (103617), 0 states have call successors, (0), 0 states 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 23:48:03,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55975 states to 55975 states and 103617 transitions. [2022-01-10 23:48:03,432 INFO L78 Accepts]: Start accepts. Automaton has 55975 states and 103617 transitions. Word has length 61 [2022-01-10 23:48:03,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:03,433 INFO L470 AbstractCegarLoop]: Abstraction has 55975 states and 103617 transitions. [2022-01-10 23:48:03,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:03,433 INFO L276 IsEmpty]: Start isEmpty. Operand 55975 states and 103617 transitions. [2022-01-10 23:48:03,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 23:48:03,434 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:03,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:48:03,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 23:48:03,434 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:03,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:03,434 INFO L85 PathProgramCache]: Analyzing trace with hash 328502202, now seen corresponding path program 1 times [2022-01-10 23:48:03,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:03,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074351087] [2022-01-10 23:48:03,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:03,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:03,478 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 23:48:03,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:03,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074351087] [2022-01-10 23:48:03,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074351087] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:03,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:03,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:48:03,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449088807] [2022-01-10 23:48:03,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:03,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:03,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:03,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:03,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:03,479 INFO L87 Difference]: Start difference. First operand 55975 states and 103617 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:06,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:06,886 INFO L93 Difference]: Finished difference Result 146594 states and 271491 transitions. [2022-01-10 23:48:06,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:06,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 23:48:06,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:07,040 INFO L225 Difference]: With dead ends: 146594 [2022-01-10 23:48:07,041 INFO L226 Difference]: Without dead ends: 92320 [2022-01-10 23:48:07,079 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 23:48:07,080 INFO L933 BasicCegarLoop]: 17903 mSDtfsCounter, 11261 mSDsluCounter, 10718 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11261 SdHoareTripleChecker+Valid, 28621 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:07,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11261 Valid, 28621 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:48:07,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92320 states.