/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:31:41,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:31:41,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:31:41,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:31:41,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:31:41,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:31:41,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:31:41,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:31:41,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:31:41,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:31:41,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:31:41,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:31:41,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:31:41,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:31:41,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:31:41,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:31:41,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:31:41,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:31:41,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:31:41,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:31:41,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:31:41,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:31:41,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:31:41,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:31:41,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:31:41,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:31:41,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:31:41,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:31:41,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:31:41,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:31:41,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:31:41,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:31:41,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:31:41,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:31:41,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:31:41,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:31:41,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:31:41,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:31:41,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:31:41,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:31:41,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:31:41,334 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:31:41,358 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:31:41,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:31:41,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:31:41,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:31:41,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:31:41,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:31:41,361 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:31:41,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:31:41,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:31:41,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:31:41,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:31:41,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:31:41,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:31:41,363 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:31:41,363 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:31:41,363 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:31:41,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:31:41,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:31:41,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:31:41,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:31:41,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:31:41,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:31:41,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:31:41,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:31:41,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:31:41,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:31:41,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:31:41,364 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:31:41,364 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:31:41,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:31:41,364 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:31:41,364 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:31:41,365 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:31:41,365 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:31:41,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:31:41,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:31:41,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:31:41,576 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:31:41,576 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:31:41,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product03.cil.c [2022-01-11 05:31:41,624 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f6de8b40/d1dbb597b0744561a8c82487079001bd/FLAGbb2ed22dd [2022-01-11 05:31:42,151 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:31:42,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product03.cil.c [2022-01-11 05:31:42,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f6de8b40/d1dbb597b0744561a8c82487079001bd/FLAGbb2ed22dd [2022-01-11 05:31:42,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f6de8b40/d1dbb597b0744561a8c82487079001bd [2022-01-11 05:31:42,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:31:42,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:31:42,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:31:42,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:31:42,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:31:42,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:31:42" (1/1) ... [2022-01-11 05:31:42,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e07110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:42, skipping insertion in model container [2022-01-11 05:31:42,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:31:42" (1/1) ... [2022-01-11 05:31:42,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:31:42,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:31:42,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product03.cil.c[49188,49201] [2022-01-11 05:31:42,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:31:42,922 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:31:42,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:31:43,007 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product03.cil.c[49188,49201] [2022-01-11 05:31:43,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:31:43,038 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:31:43,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product03.cil.c[49188,49201] [2022-01-11 05:31:43,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:31:43,138 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:31:43,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:43 WrapperNode [2022-01-11 05:31:43,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:31:43,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:31:43,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:31:43,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:31:43,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:43" (1/1) ... [2022-01-11 05:31:43,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:43" (1/1) ... [2022-01-11 05:31:43,333 INFO L137 Inliner]: procedures = 94, calls = 337, calls flagged for inlining = 190, calls inlined = 252, statements flattened = 8087 [2022-01-11 05:31:43,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:31:43,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:31:43,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:31:43,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:31:43,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:43" (1/1) ... [2022-01-11 05:31:43,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:43" (1/1) ... [2022-01-11 05:31:43,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:43" (1/1) ... [2022-01-11 05:31:43,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:43" (1/1) ... [2022-01-11 05:31:43,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:43" (1/1) ... [2022-01-11 05:31:43,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:43" (1/1) ... [2022-01-11 05:31:43,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:43" (1/1) ... [2022-01-11 05:31:43,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:31:43,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:31:43,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:31:43,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:31:43,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:43" (1/1) ... [2022-01-11 05:31:43,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:31:43,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:31:43,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:31:43,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:31:43,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:31:43,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:31:43,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:31:43,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:31:43,737 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:31:43,741 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:31:46,804 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:31:46,822 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:31:46,822 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:31:46,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:31:46 BoogieIcfgContainer [2022-01-11 05:31:46,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:31:46,840 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:31:46,840 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:31:46,856 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:31:46,858 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:31:46" (1/1) ... [2022-01-11 05:31:47,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:31:47 BasicIcfg [2022-01-11 05:31:47,358 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:31:47,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:31:47,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:31:47,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:31:47,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:31:42" (1/4) ... [2022-01-11 05:31:47,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133f567e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:31:47, skipping insertion in model container [2022-01-11 05:31:47,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:31:43" (2/4) ... [2022-01-11 05:31:47,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133f567e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:31:47, skipping insertion in model container [2022-01-11 05:31:47,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:31:46" (3/4) ... [2022-01-11 05:31:47,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133f567e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:31:47, skipping insertion in model container [2022-01-11 05:31:47,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:31:47" (4/4) ... [2022-01-11 05:31:47,363 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product03.cil.cTransformedIcfg [2022-01-11 05:31:47,366 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:31:47,366 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-11 05:31:47,417 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:31:47,424 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:31:47,424 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-11 05:31:47,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 2367 states, 2361 states have (on average 1.8729351969504446) internal successors, (4422), 2366 states have internal predecessors, (4422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:47,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 05:31:47,478 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:47,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:47,480 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:47,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:47,486 INFO L85 PathProgramCache]: Analyzing trace with hash 555520722, now seen corresponding path program 1 times [2022-01-11 05:31:47,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:47,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844326240] [2022-01-11 05:31:47,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:47,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:47,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:47,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:47,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844326240] [2022-01-11 05:31:47,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844326240] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:47,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:47,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:47,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892454931] [2022-01-11 05:31:47,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:47,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:47,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:47,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:47,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:47,864 INFO L87 Difference]: Start difference. First operand has 2367 states, 2361 states have (on average 1.8729351969504446) internal successors, (4422), 2366 states have internal predecessors, (4422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:48,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:48,250 INFO L93 Difference]: Finished difference Result 7006 states and 13106 transitions. [2022-01-11 05:31:48,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:48,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 05:31:48,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:48,285 INFO L225 Difference]: With dead ends: 7006 [2022-01-11 05:31:48,285 INFO L226 Difference]: Without dead ends: 4641 [2022-01-11 05:31:48,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:48,299 INFO L933 BasicCegarLoop]: 8679 mSDtfsCounter, 4383 mSDsluCounter, 4289 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4383 SdHoareTripleChecker+Valid, 12968 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:48,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4383 Valid, 12968 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:31:48,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4641 states. [2022-01-11 05:31:48,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4641 to 2356. [2022-01-11 05:31:48,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 2351 states have (on average 1.8706933219906423) internal successors, (4398), 2355 states have internal predecessors, (4398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:48,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 4398 transitions. [2022-01-11 05:31:48,439 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 4398 transitions. Word has length 64 [2022-01-11 05:31:48,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:48,439 INFO L470 AbstractCegarLoop]: Abstraction has 2356 states and 4398 transitions. [2022-01-11 05:31:48,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:48,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 4398 transitions. [2022-01-11 05:31:48,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-11 05:31:48,442 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:48,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:48,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:31:48,442 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:48,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:48,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1652006052, now seen corresponding path program 1 times [2022-01-11 05:31:48,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:48,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992911957] [2022-01-11 05:31:48,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:48,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:48,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:48,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:48,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992911957] [2022-01-11 05:31:48,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992911957] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:48,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:48,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:48,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906936237] [2022-01-11 05:31:48,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:48,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:48,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:48,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:48,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:48,556 INFO L87 Difference]: Start difference. First operand 2356 states and 4398 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:48,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:48,739 INFO L93 Difference]: Finished difference Result 6911 states and 12914 transitions. [2022-01-11 05:31:48,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:48,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-01-11 05:31:48,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:48,757 INFO L225 Difference]: With dead ends: 6911 [2022-01-11 05:31:48,757 INFO L226 Difference]: Without dead ends: 4605 [2022-01-11 05:31:48,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:48,765 INFO L933 BasicCegarLoop]: 8542 mSDtfsCounter, 4285 mSDsluCounter, 4229 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4285 SdHoareTripleChecker+Valid, 12771 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:48,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4285 Valid, 12771 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:31:48,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2022-01-11 05:31:48,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 2356. [2022-01-11 05:31:48,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 2351 states have (on average 1.8600595491280307) internal successors, (4373), 2355 states have internal predecessors, (4373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:48,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 4373 transitions. [2022-01-11 05:31:48,875 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 4373 transitions. Word has length 71 [2022-01-11 05:31:48,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:48,877 INFO L470 AbstractCegarLoop]: Abstraction has 2356 states and 4373 transitions. [2022-01-11 05:31:48,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:48,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 4373 transitions. [2022-01-11 05:31:48,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-11 05:31:48,885 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:48,885 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:48,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:31:48,885 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:48,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:48,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1306038373, now seen corresponding path program 1 times [2022-01-11 05:31:48,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:48,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596065417] [2022-01-11 05:31:48,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:48,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:48,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:48,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:48,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596065417] [2022-01-11 05:31:48,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596065417] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:48,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:48,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:48,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021083645] [2022-01-11 05:31:48,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:48,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:48,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:48,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:48,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:48,970 INFO L87 Difference]: Start difference. First operand 2356 states and 4373 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:49,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:49,030 INFO L93 Difference]: Finished difference Result 4641 states and 8648 transitions. [2022-01-11 05:31:49,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:49,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-01-11 05:31:49,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:49,038 INFO L225 Difference]: With dead ends: 4641 [2022-01-11 05:31:49,038 INFO L226 Difference]: Without dead ends: 2356 [2022-01-11 05:31:49,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:49,045 INFO L933 BasicCegarLoop]: 4354 mSDtfsCounter, 4362 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4362 SdHoareTripleChecker+Valid, 4361 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:49,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4362 Valid, 4361 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:49,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2022-01-11 05:31:49,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 2356. [2022-01-11 05:31:49,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 2351 states have (on average 1.8592088472990216) internal successors, (4371), 2355 states have internal predecessors, (4371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:49,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 4371 transitions. [2022-01-11 05:31:49,094 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 4371 transitions. Word has length 74 [2022-01-11 05:31:49,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:49,096 INFO L470 AbstractCegarLoop]: Abstraction has 2356 states and 4371 transitions. [2022-01-11 05:31:49,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:49,096 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 4371 transitions. [2022-01-11 05:31:49,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-11 05:31:49,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:49,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:49,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:31:49,099 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:49,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:49,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1493446773, now seen corresponding path program 1 times [2022-01-11 05:31:49,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:49,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96075154] [2022-01-11 05:31:49,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:49,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:49,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:49,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:49,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96075154] [2022-01-11 05:31:49,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96075154] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:49,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:49,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:49,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65671011] [2022-01-11 05:31:49,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:49,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:49,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:49,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:49,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:49,211 INFO L87 Difference]: Start difference. First operand 2356 states and 4371 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:49,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:49,337 INFO L93 Difference]: Finished difference Result 4605 states and 8575 transitions. [2022-01-11 05:31:49,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:49,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-01-11 05:31:49,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:49,345 INFO L225 Difference]: With dead ends: 4605 [2022-01-11 05:31:49,345 INFO L226 Difference]: Without dead ends: 2356 [2022-01-11 05:31:49,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:49,354 INFO L933 BasicCegarLoop]: 4276 mSDtfsCounter, 4343 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4343 SdHoareTripleChecker+Valid, 4291 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:49,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4343 Valid, 4291 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:31:49,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2022-01-11 05:31:49,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 2356. [2022-01-11 05:31:49,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 2351 states have (on average 1.854955338153977) internal successors, (4361), 2355 states have internal predecessors, (4361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:49,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 4361 transitions. [2022-01-11 05:31:49,399 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 4361 transitions. Word has length 76 [2022-01-11 05:31:49,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:49,400 INFO L470 AbstractCegarLoop]: Abstraction has 2356 states and 4361 transitions. [2022-01-11 05:31:49,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:49,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 4361 transitions. [2022-01-11 05:31:49,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-11 05:31:49,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:49,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:49,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:31:49,403 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:49,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:49,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1444960385, now seen corresponding path program 1 times [2022-01-11 05:31:49,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:49,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710860731] [2022-01-11 05:31:49,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:49,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:49,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:49,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:49,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710860731] [2022-01-11 05:31:49,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710860731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:49,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:49,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:49,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269047358] [2022-01-11 05:31:49,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:49,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:49,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:49,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:49,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:49,509 INFO L87 Difference]: Start difference. First operand 2356 states and 4361 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:49,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:49,618 INFO L93 Difference]: Finished difference Result 5808 states and 10806 transitions. [2022-01-11 05:31:49,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:49,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-11 05:31:49,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:49,635 INFO L225 Difference]: With dead ends: 5808 [2022-01-11 05:31:49,635 INFO L226 Difference]: Without dead ends: 4638 [2022-01-11 05:31:49,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:49,640 INFO L933 BasicCegarLoop]: 6500 mSDtfsCounter, 4339 mSDsluCounter, 4269 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4339 SdHoareTripleChecker+Valid, 10769 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:49,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4339 Valid, 10769 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:49,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4638 states. [2022-01-11 05:31:49,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4638 to 4638. [2022-01-11 05:31:49,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4638 states, 4633 states have (on average 1.8625080941074899) internal successors, (8629), 4637 states have internal predecessors, (8629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:49,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4638 states to 4638 states and 8629 transitions. [2022-01-11 05:31:49,759 INFO L78 Accepts]: Start accepts. Automaton has 4638 states and 8629 transitions. Word has length 78 [2022-01-11 05:31:49,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:49,762 INFO L470 AbstractCegarLoop]: Abstraction has 4638 states and 8629 transitions. [2022-01-11 05:31:49,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:49,762 INFO L276 IsEmpty]: Start isEmpty. Operand 4638 states and 8629 transitions. [2022-01-11 05:31:49,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:31:49,767 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:49,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:49,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:31:49,767 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:49,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:49,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1844112699, now seen corresponding path program 1 times [2022-01-11 05:31:49,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:49,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621414401] [2022-01-11 05:31:49,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:49,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:49,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:49,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:49,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:49,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621414401] [2022-01-11 05:31:49,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621414401] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:49,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:49,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:49,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145044846] [2022-01-11 05:31:49,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:49,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:49,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:49,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:49,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:49,853 INFO L87 Difference]: Start difference. First operand 4638 states and 8629 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:50,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:50,006 INFO L93 Difference]: Finished difference Result 11460 states and 21386 transitions. [2022-01-11 05:31:50,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:50,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-11 05:31:50,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:50,043 INFO L225 Difference]: With dead ends: 11460 [2022-01-11 05:31:50,044 INFO L226 Difference]: Without dead ends: 9144 [2022-01-11 05:31:50,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:50,053 INFO L933 BasicCegarLoop]: 4358 mSDtfsCounter, 4277 mSDsluCounter, 4272 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4277 SdHoareTripleChecker+Valid, 8630 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:50,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4277 Valid, 8630 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:50,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9144 states. [2022-01-11 05:31:50,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9144 to 9142. [2022-01-11 05:31:50,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9142 states, 9137 states have (on average 1.8674619678231368) internal successors, (17063), 9141 states have internal predecessors, (17063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:50,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9142 states to 9142 states and 17063 transitions. [2022-01-11 05:31:50,321 INFO L78 Accepts]: Start accepts. Automaton has 9142 states and 17063 transitions. Word has length 79 [2022-01-11 05:31:50,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:50,321 INFO L470 AbstractCegarLoop]: Abstraction has 9142 states and 17063 transitions. [2022-01-11 05:31:50,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:50,322 INFO L276 IsEmpty]: Start isEmpty. Operand 9142 states and 17063 transitions. [2022-01-11 05:31:50,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:31:50,330 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:50,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:50,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:31:50,330 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:50,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:50,330 INFO L85 PathProgramCache]: Analyzing trace with hash 724575394, now seen corresponding path program 1 times [2022-01-11 05:31:50,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:50,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846336716] [2022-01-11 05:31:50,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:50,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:50,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:50,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:50,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846336716] [2022-01-11 05:31:50,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846336716] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:50,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:50,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:50,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898162666] [2022-01-11 05:31:50,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:50,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:50,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:50,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:50,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:50,433 INFO L87 Difference]: Start difference. First operand 9142 states and 17063 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:51,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:51,210 INFO L93 Difference]: Finished difference Result 54068 states and 101173 transitions. [2022-01-11 05:31:51,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:31:51,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-11 05:31:51,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:51,322 INFO L225 Difference]: With dead ends: 54068 [2022-01-11 05:31:51,323 INFO L226 Difference]: Without dead ends: 44955 [2022-01-11 05:31:51,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:31:51,345 INFO L933 BasicCegarLoop]: 16991 mSDtfsCounter, 12784 mSDsluCounter, 21248 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12784 SdHoareTripleChecker+Valid, 38239 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:51,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12784 Valid, 38239 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:51,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44955 states. [2022-01-11 05:31:51,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44955 to 9130. [2022-01-11 05:31:51,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 9125 states have (on average 1.868164383561644) internal successors, (17047), 9129 states have internal predecessors, (17047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:51,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 17047 transitions. [2022-01-11 05:31:51,768 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 17047 transitions. Word has length 79 [2022-01-11 05:31:51,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:51,769 INFO L470 AbstractCegarLoop]: Abstraction has 9130 states and 17047 transitions. [2022-01-11 05:31:51,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:51,769 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 17047 transitions. [2022-01-11 05:31:51,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 05:31:51,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:51,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:51,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:31:51,905 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:51,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:51,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1382796616, now seen corresponding path program 1 times [2022-01-11 05:31:51,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:51,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371378987] [2022-01-11 05:31:51,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:51,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:51,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:52,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:52,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371378987] [2022-01-11 05:31:52,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371378987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:52,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:52,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:31:52,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449045628] [2022-01-11 05:31:52,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:52,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:31:52,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:52,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:31:52,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:31:52,001 INFO L87 Difference]: Start difference. First operand 9130 states and 17047 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:53,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:53,102 INFO L93 Difference]: Finished difference Result 45030 states and 84269 transitions. [2022-01-11 05:31:53,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:31:53,102 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-11 05:31:53,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:53,178 INFO L225 Difference]: With dead ends: 45030 [2022-01-11 05:31:53,178 INFO L226 Difference]: Without dead ends: 35929 [2022-01-11 05:31:53,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:31:53,196 INFO L933 BasicCegarLoop]: 16881 mSDtfsCounter, 21352 mSDsluCounter, 16866 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21352 SdHoareTripleChecker+Valid, 33747 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:53,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21352 Valid, 33747 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:31:53,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35929 states. [2022-01-11 05:31:53,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35929 to 9130. [2022-01-11 05:31:53,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 9125 states have (on average 1.8663013698630138) internal successors, (17030), 9129 states have internal predecessors, (17030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:53,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 17030 transitions. [2022-01-11 05:31:53,671 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 17030 transitions. Word has length 81 [2022-01-11 05:31:53,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:53,672 INFO L470 AbstractCegarLoop]: Abstraction has 9130 states and 17030 transitions. [2022-01-11 05:31:53,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:53,672 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 17030 transitions. [2022-01-11 05:31:53,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 05:31:53,678 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:53,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:53,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:31:53,678 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:53,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:53,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1483708583, now seen corresponding path program 1 times [2022-01-11 05:31:53,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:53,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612908753] [2022-01-11 05:31:53,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:53,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:53,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:53,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:53,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612908753] [2022-01-11 05:31:53,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612908753] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:53,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:53,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:31:53,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680958523] [2022-01-11 05:31:53,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:53,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:31:53,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:53,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:31:53,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:31:53,739 INFO L87 Difference]: Start difference. First operand 9130 states and 17030 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:54,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:54,367 INFO L93 Difference]: Finished difference Result 36232 states and 67701 transitions. [2022-01-11 05:31:54,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:31:54,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-11 05:31:54,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:54,414 INFO L225 Difference]: With dead ends: 36232 [2022-01-11 05:31:54,414 INFO L226 Difference]: Without dead ends: 27125 [2022-01-11 05:31:54,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:54,430 INFO L933 BasicCegarLoop]: 4346 mSDtfsCounter, 12821 mSDsluCounter, 12777 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12821 SdHoareTripleChecker+Valid, 17123 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:54,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12821 Valid, 17123 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:54,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27125 states. [2022-01-11 05:31:54,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27125 to 9138. [2022-01-11 05:31:54,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9138 states, 9133 states have (on average 1.8652140589072594) internal successors, (17035), 9137 states have internal predecessors, (17035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:54,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9138 states to 9138 states and 17035 transitions. [2022-01-11 05:31:54,737 INFO L78 Accepts]: Start accepts. Automaton has 9138 states and 17035 transitions. Word has length 81 [2022-01-11 05:31:54,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:54,737 INFO L470 AbstractCegarLoop]: Abstraction has 9138 states and 17035 transitions. [2022-01-11 05:31:54,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:54,737 INFO L276 IsEmpty]: Start isEmpty. Operand 9138 states and 17035 transitions. [2022-01-11 05:31:54,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-11 05:31:54,743 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:54,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:54,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:31:54,743 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:54,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:54,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1629954071, now seen corresponding path program 1 times [2022-01-11 05:31:54,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:54,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713585118] [2022-01-11 05:31:54,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:54,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:54,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:54,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:54,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713585118] [2022-01-11 05:31:54,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713585118] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:54,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:54,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:31:54,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94718674] [2022-01-11 05:31:54,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:54,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:31:54,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:54,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:31:54,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:31:54,843 INFO L87 Difference]: Start difference. First operand 9138 states and 17035 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:55,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:55,902 INFO L93 Difference]: Finished difference Result 45117 states and 84345 transitions. [2022-01-11 05:31:55,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:31:55,903 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-11 05:31:55,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:55,974 INFO L225 Difference]: With dead ends: 45117 [2022-01-11 05:31:55,974 INFO L226 Difference]: Without dead ends: 35995 [2022-01-11 05:31:55,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:31:55,989 INFO L933 BasicCegarLoop]: 16950 mSDtfsCounter, 17046 mSDsluCounter, 16956 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17046 SdHoareTripleChecker+Valid, 33906 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:55,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17046 Valid, 33906 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:56,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35995 states. [2022-01-11 05:31:56,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35995 to 9130. [2022-01-11 05:31:56,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 9125 states have (on average 1.8654246575342466) internal successors, (17022), 9129 states have internal predecessors, (17022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:56,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 17022 transitions. [2022-01-11 05:31:56,514 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 17022 transitions. Word has length 82 [2022-01-11 05:31:56,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:56,514 INFO L470 AbstractCegarLoop]: Abstraction has 9130 states and 17022 transitions. [2022-01-11 05:31:56,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:56,514 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 17022 transitions. [2022-01-11 05:31:56,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-11 05:31:56,520 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:56,521 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:56,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:31:56,521 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:56,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:56,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1212007185, now seen corresponding path program 1 times [2022-01-11 05:31:56,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:56,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278804469] [2022-01-11 05:31:56,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:56,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:56,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:56,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:56,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278804469] [2022-01-11 05:31:56,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278804469] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:56,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:56,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:56,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014220962] [2022-01-11 05:31:56,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:56,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:56,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:56,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:56,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:56,578 INFO L87 Difference]: Start difference. First operand 9130 states and 17022 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:57,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:57,460 INFO L93 Difference]: Finished difference Result 36037 states and 67372 transitions. [2022-01-11 05:31:57,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:31:57,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-01-11 05:31:57,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:57,504 INFO L225 Difference]: With dead ends: 36037 [2022-01-11 05:31:57,504 INFO L226 Difference]: Without dead ends: 26954 [2022-01-11 05:31:57,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:31:57,520 INFO L933 BasicCegarLoop]: 4284 mSDtfsCounter, 21258 mSDsluCounter, 12614 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21258 SdHoareTripleChecker+Valid, 16898 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:57,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21258 Valid, 16898 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:57,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26954 states. [2022-01-11 05:31:57,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26954 to 9156. [2022-01-11 05:31:57,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9156 states, 9151 states have (on average 1.8642771281827122) internal successors, (17060), 9155 states have internal predecessors, (17060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:57,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9156 states to 9156 states and 17060 transitions. [2022-01-11 05:31:57,889 INFO L78 Accepts]: Start accepts. Automaton has 9156 states and 17060 transitions. Word has length 83 [2022-01-11 05:31:57,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:57,889 INFO L470 AbstractCegarLoop]: Abstraction has 9156 states and 17060 transitions. [2022-01-11 05:31:57,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:57,890 INFO L276 IsEmpty]: Start isEmpty. Operand 9156 states and 17060 transitions. [2022-01-11 05:31:57,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-11 05:31:57,895 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:57,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:57,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:31:57,896 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:57,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:57,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1841199263, now seen corresponding path program 1 times [2022-01-11 05:31:57,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:57,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630444496] [2022-01-11 05:31:57,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:57,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:57,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:57,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:57,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630444496] [2022-01-11 05:31:57,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630444496] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:57,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:57,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:31:57,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565263058] [2022-01-11 05:31:57,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:57,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:31:57,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:57,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:31:57,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:31:57,965 INFO L87 Difference]: Start difference. First operand 9156 states and 17060 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:58,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:58,466 INFO L93 Difference]: Finished difference Result 20368 states and 38041 transitions. [2022-01-11 05:31:58,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:31:58,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-01-11 05:31:58,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:58,487 INFO L225 Difference]: With dead ends: 20368 [2022-01-11 05:31:58,487 INFO L226 Difference]: Without dead ends: 13523 [2022-01-11 05:31:58,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:31:58,497 INFO L933 BasicCegarLoop]: 4277 mSDtfsCounter, 8464 mSDsluCounter, 4288 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8464 SdHoareTripleChecker+Valid, 8565 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:58,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8464 Valid, 8565 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:58,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13523 states. [2022-01-11 05:31:58,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13523 to 9076. [2022-01-11 05:31:58,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9076 states, 9071 states have (on average 1.8663873883805535) internal successors, (16930), 9075 states have internal predecessors, (16930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:58,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9076 states to 9076 states and 16930 transitions. [2022-01-11 05:31:58,830 INFO L78 Accepts]: Start accepts. Automaton has 9076 states and 16930 transitions. Word has length 85 [2022-01-11 05:31:58,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:58,831 INFO L470 AbstractCegarLoop]: Abstraction has 9076 states and 16930 transitions. [2022-01-11 05:31:58,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:58,832 INFO L276 IsEmpty]: Start isEmpty. Operand 9076 states and 16930 transitions. [2022-01-11 05:31:58,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-11 05:31:58,838 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:58,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:58,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:31:58,839 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:58,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:58,839 INFO L85 PathProgramCache]: Analyzing trace with hash 111496493, now seen corresponding path program 1 times [2022-01-11 05:31:58,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:58,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901516085] [2022-01-11 05:31:58,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:58,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:58,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:58,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:58,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901516085] [2022-01-11 05:31:58,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901516085] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:58,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:58,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:58,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621724317] [2022-01-11 05:31:58,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:58,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:58,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:58,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:58,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:58,899 INFO L87 Difference]: Start difference. First operand 9076 states and 16930 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:59,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:59,087 INFO L93 Difference]: Finished difference Result 13559 states and 25314 transitions. [2022-01-11 05:31:59,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:59,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-01-11 05:31:59,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:59,094 INFO L225 Difference]: With dead ends: 13559 [2022-01-11 05:31:59,094 INFO L226 Difference]: Without dead ends: 4584 [2022-01-11 05:31:59,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:59,102 INFO L933 BasicCegarLoop]: 4284 mSDtfsCounter, 8481 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8481 SdHoareTripleChecker+Valid, 4360 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:59,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8481 Valid, 4360 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:59,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4584 states. [2022-01-11 05:31:59,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4584 to 4584. [2022-01-11 05:31:59,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4584 states, 4580 states have (on average 1.8609170305676856) internal successors, (8523), 4583 states have internal predecessors, (8523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:59,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4584 states to 4584 states and 8523 transitions. [2022-01-11 05:31:59,270 INFO L78 Accepts]: Start accepts. Automaton has 4584 states and 8523 transitions. Word has length 86 [2022-01-11 05:31:59,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:59,270 INFO L470 AbstractCegarLoop]: Abstraction has 4584 states and 8523 transitions. [2022-01-11 05:31:59,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:59,270 INFO L276 IsEmpty]: Start isEmpty. Operand 4584 states and 8523 transitions. [2022-01-11 05:31:59,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 05:31:59,273 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:59,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:59,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:31:59,273 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:59,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:59,274 INFO L85 PathProgramCache]: Analyzing trace with hash -986124759, now seen corresponding path program 1 times [2022-01-11 05:31:59,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:59,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64981718] [2022-01-11 05:31:59,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:59,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:59,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:59,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:59,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64981718] [2022-01-11 05:31:59,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64981718] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:59,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:59,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:31:59,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551476583] [2022-01-11 05:31:59,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:59,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:31:59,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:59,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:31:59,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:31:59,352 INFO L87 Difference]: Start difference. First operand 4584 states and 8523 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:59,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:59,568 INFO L93 Difference]: Finished difference Result 9055 states and 16889 transitions. [2022-01-11 05:31:59,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:31:59,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-11 05:31:59,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:59,573 INFO L225 Difference]: With dead ends: 9055 [2022-01-11 05:31:59,573 INFO L226 Difference]: Without dead ends: 4572 [2022-01-11 05:31:59,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:59,576 INFO L933 BasicCegarLoop]: 4267 mSDtfsCounter, 8454 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8454 SdHoareTripleChecker+Valid, 4356 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:59,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8454 Valid, 4356 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:59,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4572 states. [2022-01-11 05:31:59,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4572 to 4572. [2022-01-11 05:31:59,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4572 states, 4568 states have (on average 1.8614273204903677) internal successors, (8503), 4571 states have internal predecessors, (8503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:59,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4572 states to 4572 states and 8503 transitions. [2022-01-11 05:31:59,736 INFO L78 Accepts]: Start accepts. Automaton has 4572 states and 8503 transitions. Word has length 88 [2022-01-11 05:31:59,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:59,736 INFO L470 AbstractCegarLoop]: Abstraction has 4572 states and 8503 transitions. [2022-01-11 05:31:59,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:59,736 INFO L276 IsEmpty]: Start isEmpty. Operand 4572 states and 8503 transitions. [2022-01-11 05:31:59,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 05:31:59,739 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:59,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:59,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:31:59,739 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:59,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:59,739 INFO L85 PathProgramCache]: Analyzing trace with hash 2127048005, now seen corresponding path program 1 times [2022-01-11 05:31:59,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:59,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043348550] [2022-01-11 05:31:59,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:59,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:59,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:59,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:59,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043348550] [2022-01-11 05:31:59,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043348550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:59,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:59,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:31:59,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461580339] [2022-01-11 05:31:59,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:59,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:31:59,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:59,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:31:59,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:31:59,792 INFO L87 Difference]: Start difference. First operand 4572 states and 8503 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:00,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:00,017 INFO L93 Difference]: Finished difference Result 9081 states and 16915 transitions. [2022-01-11 05:32:00,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:32:00,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-11 05:32:00,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:00,024 INFO L225 Difference]: With dead ends: 9081 [2022-01-11 05:32:00,024 INFO L226 Difference]: Without dead ends: 4634 [2022-01-11 05:32:00,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:32:00,028 INFO L933 BasicCegarLoop]: 4290 mSDtfsCounter, 16967 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16967 SdHoareTripleChecker+Valid, 4406 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:00,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16967 Valid, 4406 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:00,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4634 states. [2022-01-11 05:32:00,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4634 to 4572. [2022-01-11 05:32:00,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4572 states, 4568 states have (on average 1.8609894921190893) internal successors, (8501), 4571 states have internal predecessors, (8501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:00,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4572 states to 4572 states and 8501 transitions. [2022-01-11 05:32:00,192 INFO L78 Accepts]: Start accepts. Automaton has 4572 states and 8501 transitions. Word has length 88 [2022-01-11 05:32:00,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:00,192 INFO L470 AbstractCegarLoop]: Abstraction has 4572 states and 8501 transitions. [2022-01-11 05:32:00,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:00,192 INFO L276 IsEmpty]: Start isEmpty. Operand 4572 states and 8501 transitions. [2022-01-11 05:32:00,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-11 05:32:00,194 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:00,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:00,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:32:00,195 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:00,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:00,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1053849226, now seen corresponding path program 1 times [2022-01-11 05:32:00,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:00,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374778619] [2022-01-11 05:32:00,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:00,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:00,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:00,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:00,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374778619] [2022-01-11 05:32:00,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374778619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:00,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:00,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:32:00,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519415701] [2022-01-11 05:32:00,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:00,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:32:00,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:00,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:32:00,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:32:00,274 INFO L87 Difference]: Start difference. First operand 4572 states and 8501 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:00,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:00,984 INFO L93 Difference]: Finished difference Result 18001 states and 33605 transitions. [2022-01-11 05:32:00,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:32:00,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-01-11 05:32:00,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:01,005 INFO L225 Difference]: With dead ends: 18001 [2022-01-11 05:32:01,006 INFO L226 Difference]: Without dead ends: 13554 [2022-01-11 05:32:01,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:32:01,012 INFO L933 BasicCegarLoop]: 8463 mSDtfsCounter, 21162 mSDsluCounter, 12678 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21162 SdHoareTripleChecker+Valid, 21141 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:01,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21162 Valid, 21141 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:01,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13554 states. [2022-01-11 05:32:01,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13554 to 4592. [2022-01-11 05:32:01,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4592 states, 4588 states have (on average 1.8589799476896252) internal successors, (8529), 4591 states have internal predecessors, (8529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:01,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4592 states to 4592 states and 8529 transitions. [2022-01-11 05:32:01,282 INFO L78 Accepts]: Start accepts. Automaton has 4592 states and 8529 transitions. Word has length 89 [2022-01-11 05:32:01,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:01,282 INFO L470 AbstractCegarLoop]: Abstraction has 4592 states and 8529 transitions. [2022-01-11 05:32:01,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:01,283 INFO L276 IsEmpty]: Start isEmpty. Operand 4592 states and 8529 transitions. [2022-01-11 05:32:01,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-11 05:32:01,287 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:01,287 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:01,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 05:32:01,287 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:01,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:01,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1758966111, now seen corresponding path program 1 times [2022-01-11 05:32:01,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:01,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577572195] [2022-01-11 05:32:01,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:01,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:01,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:01,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:01,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577572195] [2022-01-11 05:32:01,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577572195] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:01,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:01,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:01,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378196773] [2022-01-11 05:32:01,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:01,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:01,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:01,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:01,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:01,350 INFO L87 Difference]: Start difference. First operand 4592 states and 8529 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:01,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:01,637 INFO L93 Difference]: Finished difference Result 8060 states and 14970 transitions. [2022-01-11 05:32:01,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:32:01,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-01-11 05:32:01,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:01,646 INFO L225 Difference]: With dead ends: 8060 [2022-01-11 05:32:01,647 INFO L226 Difference]: Without dead ends: 4621 [2022-01-11 05:32:01,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:01,652 INFO L933 BasicCegarLoop]: 4241 mSDtfsCounter, 4338 mSDsluCounter, 4264 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4338 SdHoareTripleChecker+Valid, 8505 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:01,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4338 Valid, 8505 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:01,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4621 states. [2022-01-11 05:32:01,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4621 to 4589. [2022-01-11 05:32:01,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4585 states have (on average 1.8577971646673936) internal successors, (8518), 4588 states have internal predecessors, (8518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:01,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 8518 transitions. [2022-01-11 05:32:01,924 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 8518 transitions. Word has length 90 [2022-01-11 05:32:01,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:01,924 INFO L470 AbstractCegarLoop]: Abstraction has 4589 states and 8518 transitions. [2022-01-11 05:32:01,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:01,925 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 8518 transitions. [2022-01-11 05:32:01,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-11 05:32:01,928 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:01,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:01,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 05:32:01,928 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:01,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:01,929 INFO L85 PathProgramCache]: Analyzing trace with hash 913679954, now seen corresponding path program 1 times [2022-01-11 05:32:01,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:01,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309838590] [2022-01-11 05:32:01,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:01,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:01,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:01,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:01,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309838590] [2022-01-11 05:32:01,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309838590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:01,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:01,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:01,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300391579] [2022-01-11 05:32:01,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:01,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:32:01,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:01,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:32:01,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:32:01,975 INFO L87 Difference]: Start difference. First operand 4589 states and 8518 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:02,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:02,866 INFO L93 Difference]: Finished difference Result 12757 states and 23792 transitions. [2022-01-11 05:32:02,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:32:02,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-11 05:32:02,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:02,876 INFO L225 Difference]: With dead ends: 12757 [2022-01-11 05:32:02,876 INFO L226 Difference]: Without dead ends: 8326 [2022-01-11 05:32:02,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:02,879 INFO L933 BasicCegarLoop]: 4298 mSDtfsCounter, 11120 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11120 SdHoareTripleChecker+Valid, 7857 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:02,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11120 Valid, 7857 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:32:02,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8326 states. [2022-01-11 05:32:03,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8326 to 4589. [2022-01-11 05:32:03,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4585 states have (on average 1.8316248636859325) internal successors, (8398), 4588 states have internal predecessors, (8398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 8398 transitions. [2022-01-11 05:32:03,094 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 8398 transitions. Word has length 91 [2022-01-11 05:32:03,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:03,095 INFO L470 AbstractCegarLoop]: Abstraction has 4589 states and 8398 transitions. [2022-01-11 05:32:03,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:03,095 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 8398 transitions. [2022-01-11 05:32:03,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 05:32:03,097 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:03,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:03,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 05:32:03,098 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:03,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:03,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1021401610, now seen corresponding path program 1 times [2022-01-11 05:32:03,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:03,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694842396] [2022-01-11 05:32:03,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:03,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:03,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:03,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:03,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694842396] [2022-01-11 05:32:03,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694842396] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:03,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:03,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:03,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109300321] [2022-01-11 05:32:03,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:03,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:32:03,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:03,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:32:03,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:32:03,170 INFO L87 Difference]: Start difference. First operand 4589 states and 8398 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:07,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:07,340 INFO L93 Difference]: Finished difference Result 48467 states and 89829 transitions. [2022-01-11 05:32:07,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-11 05:32:07,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-11 05:32:07,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:07,428 INFO L225 Difference]: With dead ends: 48467 [2022-01-11 05:32:07,429 INFO L226 Difference]: Without dead ends: 44072 [2022-01-11 05:32:07,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-01-11 05:32:07,440 INFO L933 BasicCegarLoop]: 18929 mSDtfsCounter, 27417 mSDsluCounter, 62007 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27417 SdHoareTripleChecker+Valid, 80936 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:07,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27417 Valid, 80936 Invalid, 2169 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [153 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-11 05:32:07,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44072 states. [2022-01-11 05:32:08,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44072 to 9013. [2022-01-11 05:32:08,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9013 states, 9009 states have (on average 1.8367188367188367) internal successors, (16547), 9012 states have internal predecessors, (16547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:08,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9013 states to 9013 states and 16547 transitions. [2022-01-11 05:32:08,103 INFO L78 Accepts]: Start accepts. Automaton has 9013 states and 16547 transitions. Word has length 99 [2022-01-11 05:32:08,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:08,103 INFO L470 AbstractCegarLoop]: Abstraction has 9013 states and 16547 transitions. [2022-01-11 05:32:08,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:08,103 INFO L276 IsEmpty]: Start isEmpty. Operand 9013 states and 16547 transitions. [2022-01-11 05:32:08,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-11 05:32:08,109 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:08,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:08,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 05:32:08,110 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:08,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:08,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1934242973, now seen corresponding path program 1 times [2022-01-11 05:32:08,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:08,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803418459] [2022-01-11 05:32:08,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:08,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:08,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:08,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:08,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803418459] [2022-01-11 05:32:08,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803418459] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:08,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:08,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-11 05:32:08,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567022338] [2022-01-11 05:32:08,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:08,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:32:08,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:08,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:32:08,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:32:08,241 INFO L87 Difference]: Start difference. First operand 9013 states and 16547 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:10,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:10,294 INFO L93 Difference]: Finished difference Result 42145 states and 77685 transitions. [2022-01-11 05:32:10,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:32:10,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-01-11 05:32:10,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:10,349 INFO L225 Difference]: With dead ends: 42145 [2022-01-11 05:32:10,349 INFO L226 Difference]: Without dead ends: 33326 [2022-01-11 05:32:10,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-01-11 05:32:10,363 INFO L933 BasicCegarLoop]: 14388 mSDtfsCounter, 20734 mSDsluCounter, 33233 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20734 SdHoareTripleChecker+Valid, 47621 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:10,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20734 Valid, 47621 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:10,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33326 states. [2022-01-11 05:32:10,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33326 to 9049. [2022-01-11 05:32:10,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9049 states, 9045 states have (on average 1.834383637368712) internal successors, (16592), 9048 states have internal predecessors, (16592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:10,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9049 states to 9049 states and 16592 transitions. [2022-01-11 05:32:10,975 INFO L78 Accepts]: Start accepts. Automaton has 9049 states and 16592 transitions. Word has length 100 [2022-01-11 05:32:10,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:10,975 INFO L470 AbstractCegarLoop]: Abstraction has 9049 states and 16592 transitions. [2022-01-11 05:32:10,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:10,975 INFO L276 IsEmpty]: Start isEmpty. Operand 9049 states and 16592 transitions. [2022-01-11 05:32:10,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-11 05:32:10,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:10,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:10,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 05:32:10,980 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:10,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:10,981 INFO L85 PathProgramCache]: Analyzing trace with hash 433864608, now seen corresponding path program 1 times [2022-01-11 05:32:10,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:10,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307654357] [2022-01-11 05:32:10,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:10,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:11,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:11,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307654357] [2022-01-11 05:32:11,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307654357] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:11,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:11,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:32:11,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572670081] [2022-01-11 05:32:11,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:11,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:11,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:11,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:11,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:11,080 INFO L87 Difference]: Start difference. First operand 9049 states and 16592 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:13,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:13,680 INFO L93 Difference]: Finished difference Result 35783 states and 65934 transitions. [2022-01-11 05:32:13,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:32:13,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-11 05:32:13,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:13,729 INFO L225 Difference]: With dead ends: 35783 [2022-01-11 05:32:13,730 INFO L226 Difference]: Without dead ends: 27102 [2022-01-11 05:32:13,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:32:13,743 INFO L933 BasicCegarLoop]: 9067 mSDtfsCounter, 15135 mSDsluCounter, 12059 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15135 SdHoareTripleChecker+Valid, 21126 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:13,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15135 Valid, 21126 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-11 05:32:13,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27102 states. [2022-01-11 05:32:14,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27102 to 9073. [2022-01-11 05:32:14,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9073 states, 9069 states have (on average 1.8321755430587716) internal successors, (16616), 9072 states have internal predecessors, (16616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:14,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9073 states to 9073 states and 16616 transitions. [2022-01-11 05:32:14,373 INFO L78 Accepts]: Start accepts. Automaton has 9073 states and 16616 transitions. Word has length 101 [2022-01-11 05:32:14,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:14,373 INFO L470 AbstractCegarLoop]: Abstraction has 9073 states and 16616 transitions. [2022-01-11 05:32:14,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:14,373 INFO L276 IsEmpty]: Start isEmpty. Operand 9073 states and 16616 transitions. [2022-01-11 05:32:14,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-11 05:32:14,379 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:14,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:14,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 05:32:14,379 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:14,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:14,380 INFO L85 PathProgramCache]: Analyzing trace with hash -58929428, now seen corresponding path program 1 times [2022-01-11 05:32:14,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:14,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361517055] [2022-01-11 05:32:14,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:14,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:14,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:14,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:14,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361517055] [2022-01-11 05:32:14,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361517055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:14,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:14,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:32:14,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638795318] [2022-01-11 05:32:14,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:14,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:32:14,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:14,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:32:14,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:32:14,452 INFO L87 Difference]: Start difference. First operand 9073 states and 16616 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:15,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:15,516 INFO L93 Difference]: Finished difference Result 22402 states and 41149 transitions. [2022-01-11 05:32:15,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:32:15,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-11 05:32:15,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:15,540 INFO L225 Difference]: With dead ends: 22402 [2022-01-11 05:32:15,540 INFO L226 Difference]: Without dead ends: 13427 [2022-01-11 05:32:15,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:32:15,551 INFO L933 BasicCegarLoop]: 6195 mSDtfsCounter, 12302 mSDsluCounter, 12527 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12302 SdHoareTripleChecker+Valid, 18722 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:15,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12302 Valid, 18722 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:15,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13427 states. [2022-01-11 05:32:16,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13427 to 9007. [2022-01-11 05:32:16,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9007 states, 9003 states have (on average 1.8350549816727757) internal successors, (16521), 9006 states have internal predecessors, (16521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:16,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9007 states to 9007 states and 16521 transitions. [2022-01-11 05:32:16,198 INFO L78 Accepts]: Start accepts. Automaton has 9007 states and 16521 transitions. Word has length 101 [2022-01-11 05:32:16,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:16,198 INFO L470 AbstractCegarLoop]: Abstraction has 9007 states and 16521 transitions. [2022-01-11 05:32:16,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:16,198 INFO L276 IsEmpty]: Start isEmpty. Operand 9007 states and 16521 transitions. [2022-01-11 05:32:16,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-11 05:32:16,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:16,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:16,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 05:32:16,204 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:16,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:16,204 INFO L85 PathProgramCache]: Analyzing trace with hash 513032336, now seen corresponding path program 1 times [2022-01-11 05:32:16,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:16,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959114914] [2022-01-11 05:32:16,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:16,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:16,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:16,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:16,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959114914] [2022-01-11 05:32:16,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959114914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:16,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:16,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:16,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179885612] [2022-01-11 05:32:16,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:16,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:32:16,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:16,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:32:16,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:32:16,275 INFO L87 Difference]: Start difference. First operand 9007 states and 16521 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:18,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:18,474 INFO L93 Difference]: Finished difference Result 30839 states and 56975 transitions. [2022-01-11 05:32:18,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:32:18,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-01-11 05:32:18,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:18,508 INFO L225 Difference]: With dead ends: 30839 [2022-01-11 05:32:18,508 INFO L226 Difference]: Without dead ends: 22056 [2022-01-11 05:32:18,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:18,521 INFO L933 BasicCegarLoop]: 10212 mSDtfsCounter, 6865 mSDsluCounter, 8547 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6865 SdHoareTripleChecker+Valid, 18759 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:18,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6865 Valid, 18759 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-11 05:32:18,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22056 states. [2022-01-11 05:32:19,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22056 to 12259. [2022-01-11 05:32:19,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12259 states, 12255 states have (on average 1.8151774785801713) internal successors, (22245), 12258 states have internal predecessors, (22245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:19,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12259 states to 12259 states and 22245 transitions. [2022-01-11 05:32:19,338 INFO L78 Accepts]: Start accepts. Automaton has 12259 states and 22245 transitions. Word has length 102 [2022-01-11 05:32:19,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:19,338 INFO L470 AbstractCegarLoop]: Abstraction has 12259 states and 22245 transitions. [2022-01-11 05:32:19,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:19,338 INFO L276 IsEmpty]: Start isEmpty. Operand 12259 states and 22245 transitions. [2022-01-11 05:32:19,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-11 05:32:19,343 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:19,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:19,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 05:32:19,344 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:19,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:19,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1148720074, now seen corresponding path program 1 times [2022-01-11 05:32:19,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:19,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434540758] [2022-01-11 05:32:19,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:19,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:19,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:19,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:19,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434540758] [2022-01-11 05:32:19,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434540758] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:19,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:19,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:32:19,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096268049] [2022-01-11 05:32:19,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:19,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:32:19,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:19,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:32:19,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:32:19,449 INFO L87 Difference]: Start difference. First operand 12259 states and 22245 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:21,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:21,595 INFO L93 Difference]: Finished difference Result 42421 states and 77175 transitions. [2022-01-11 05:32:21,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:32:21,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-01-11 05:32:21,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:21,653 INFO L225 Difference]: With dead ends: 42421 [2022-01-11 05:32:21,653 INFO L226 Difference]: Without dead ends: 30324 [2022-01-11 05:32:21,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:32:21,668 INFO L933 BasicCegarLoop]: 11296 mSDtfsCounter, 18716 mSDsluCounter, 22747 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18716 SdHoareTripleChecker+Valid, 34043 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:21,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18716 Valid, 34043 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:21,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30324 states. [2022-01-11 05:32:22,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30324 to 12281. [2022-01-11 05:32:22,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12281 states, 12277 states have (on average 1.8142054247780401) internal successors, (22273), 12280 states have internal predecessors, (22273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:22,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12281 states to 12281 states and 22273 transitions. [2022-01-11 05:32:22,590 INFO L78 Accepts]: Start accepts. Automaton has 12281 states and 22273 transitions. Word has length 102 [2022-01-11 05:32:22,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:22,590 INFO L470 AbstractCegarLoop]: Abstraction has 12281 states and 22273 transitions. [2022-01-11 05:32:22,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:22,591 INFO L276 IsEmpty]: Start isEmpty. Operand 12281 states and 22273 transitions. [2022-01-11 05:32:22,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-11 05:32:22,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:22,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:22,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 05:32:22,596 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:22,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:22,597 INFO L85 PathProgramCache]: Analyzing trace with hash 941187773, now seen corresponding path program 1 times [2022-01-11 05:32:22,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:22,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451460315] [2022-01-11 05:32:22,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:22,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:22,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:22,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:22,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451460315] [2022-01-11 05:32:22,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451460315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:22,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:22,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:32:22,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661762329] [2022-01-11 05:32:22,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:22,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:32:22,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:22,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:32:22,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:32:22,678 INFO L87 Difference]: Start difference. First operand 12281 states and 22273 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:23,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:23,252 INFO L93 Difference]: Finished difference Result 18284 states and 33213 transitions. [2022-01-11 05:32:23,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:32:23,253 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-01-11 05:32:23,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:23,262 INFO L225 Difference]: With dead ends: 18284 [2022-01-11 05:32:23,262 INFO L226 Difference]: Without dead ends: 6091 [2022-01-11 05:32:23,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:32:23,273 INFO L933 BasicCegarLoop]: 3771 mSDtfsCounter, 7554 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7554 SdHoareTripleChecker+Valid, 3839 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:23,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7554 Valid, 3839 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:23,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6091 states. [2022-01-11 05:32:23,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6091 to 6091. [2022-01-11 05:32:23,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6091 states, 6087 states have (on average 1.8145227534089041) internal successors, (11045), 6090 states have internal predecessors, (11045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:23,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6091 states to 6091 states and 11045 transitions. [2022-01-11 05:32:23,690 INFO L78 Accepts]: Start accepts. Automaton has 6091 states and 11045 transitions. Word has length 103 [2022-01-11 05:32:23,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:23,690 INFO L470 AbstractCegarLoop]: Abstraction has 6091 states and 11045 transitions. [2022-01-11 05:32:23,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:23,690 INFO L276 IsEmpty]: Start isEmpty. Operand 6091 states and 11045 transitions. [2022-01-11 05:32:23,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-11 05:32:23,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:23,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:23,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 05:32:23,693 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:23,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:23,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1517923262, now seen corresponding path program 1 times [2022-01-11 05:32:23,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:23,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343591084] [2022-01-11 05:32:23,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:23,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:23,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:23,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:23,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343591084] [2022-01-11 05:32:23,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343591084] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:23,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:23,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:32:23,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851993386] [2022-01-11 05:32:23,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:23,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:23,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:23,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:23,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:23,768 INFO L87 Difference]: Start difference. First operand 6091 states and 11045 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:26,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:26,628 INFO L93 Difference]: Finished difference Result 43719 states and 79939 transitions. [2022-01-11 05:32:26,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:32:26,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-01-11 05:32:26,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:26,695 INFO L225 Difference]: With dead ends: 43719 [2022-01-11 05:32:26,695 INFO L226 Difference]: Without dead ends: 37758 [2022-01-11 05:32:26,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:32:26,708 INFO L933 BasicCegarLoop]: 5925 mSDtfsCounter, 26660 mSDsluCounter, 17540 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26660 SdHoareTripleChecker+Valid, 23465 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:26,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26660 Valid, 23465 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:26,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37758 states. [2022-01-11 05:32:27,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37758 to 11185. [2022-01-11 05:32:27,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11185 states, 11181 states have (on average 1.8258653072176012) internal successors, (20415), 11184 states have internal predecessors, (20415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:27,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11185 states to 11185 states and 20415 transitions. [2022-01-11 05:32:27,705 INFO L78 Accepts]: Start accepts. Automaton has 11185 states and 20415 transitions. Word has length 104 [2022-01-11 05:32:27,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:27,705 INFO L470 AbstractCegarLoop]: Abstraction has 11185 states and 20415 transitions. [2022-01-11 05:32:27,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:27,705 INFO L276 IsEmpty]: Start isEmpty. Operand 11185 states and 20415 transitions. [2022-01-11 05:32:27,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-11 05:32:27,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:27,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:27,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 05:32:27,708 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:27,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:27,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1144240035, now seen corresponding path program 1 times [2022-01-11 05:32:27,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:27,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492042703] [2022-01-11 05:32:27,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:27,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:27,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:27,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:27,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492042703] [2022-01-11 05:32:27,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492042703] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:27,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:27,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:27,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610954511] [2022-01-11 05:32:27,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:27,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:32:27,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:27,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:32:27,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:32:27,767 INFO L87 Difference]: Start difference. First operand 11185 states and 20415 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:29,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:29,305 INFO L93 Difference]: Finished difference Result 20251 states and 36831 transitions. [2022-01-11 05:32:29,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:32:29,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-01-11 05:32:29,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:29,329 INFO L225 Difference]: With dead ends: 20251 [2022-01-11 05:32:29,329 INFO L226 Difference]: Without dead ends: 15364 [2022-01-11 05:32:29,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:32:29,335 INFO L933 BasicCegarLoop]: 5163 mSDtfsCounter, 15935 mSDsluCounter, 6637 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15935 SdHoareTripleChecker+Valid, 11800 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:29,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15935 Valid, 11800 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:32:29,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15364 states. [2022-01-11 05:32:30,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15364 to 11165. [2022-01-11 05:32:30,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11165 states, 11161 states have (on average 1.8255532658363947) internal successors, (20375), 11164 states have internal predecessors, (20375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:30,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11165 states to 11165 states and 20375 transitions. [2022-01-11 05:32:30,447 INFO L78 Accepts]: Start accepts. Automaton has 11165 states and 20375 transitions. Word has length 104 [2022-01-11 05:32:30,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:30,447 INFO L470 AbstractCegarLoop]: Abstraction has 11165 states and 20375 transitions. [2022-01-11 05:32:30,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:30,447 INFO L276 IsEmpty]: Start isEmpty. Operand 11165 states and 20375 transitions. [2022-01-11 05:32:30,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-11 05:32:30,451 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:30,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:30,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 05:32:30,451 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:30,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:30,452 INFO L85 PathProgramCache]: Analyzing trace with hash -935526595, now seen corresponding path program 1 times [2022-01-11 05:32:30,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:30,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357120989] [2022-01-11 05:32:30,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:30,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:30,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:30,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:30,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357120989] [2022-01-11 05:32:30,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357120989] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:30,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:30,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:32:30,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299573698] [2022-01-11 05:32:30,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:30,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:32:30,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:30,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:32:30,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:32:30,515 INFO L87 Difference]: Start difference. First operand 11165 states and 20375 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:31,729 INFO L93 Difference]: Finished difference Result 19919 states and 36093 transitions. [2022-01-11 05:32:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:32:31,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-11 05:32:31,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:31,754 INFO L225 Difference]: With dead ends: 19919 [2022-01-11 05:32:31,755 INFO L226 Difference]: Without dead ends: 15218 [2022-01-11 05:32:31,763 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 [2022-01-11 05:32:31,763 INFO L933 BasicCegarLoop]: 5346 mSDtfsCounter, 4304 mSDsluCounter, 12703 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4304 SdHoareTripleChecker+Valid, 18049 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:31,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4304 Valid, 18049 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:31,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15218 states. [2022-01-11 05:32:32,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15218 to 11195. [2022-01-11 05:32:32,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11195 states, 11191 states have (on average 1.82334018407649) internal successors, (20405), 11194 states have internal predecessors, (20405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:32,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11195 states to 11195 states and 20405 transitions. [2022-01-11 05:32:32,697 INFO L78 Accepts]: Start accepts. Automaton has 11195 states and 20405 transitions. Word has length 106 [2022-01-11 05:32:32,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:32,698 INFO L470 AbstractCegarLoop]: Abstraction has 11195 states and 20405 transitions. [2022-01-11 05:32:32,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:32,698 INFO L276 IsEmpty]: Start isEmpty. Operand 11195 states and 20405 transitions. [2022-01-11 05:32:32,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-11 05:32:32,701 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:32,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:32,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 05:32:32,701 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:32,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:32,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1131898450, now seen corresponding path program 1 times [2022-01-11 05:32:32,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:32,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311588889] [2022-01-11 05:32:32,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:32,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:32,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:32,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:32,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311588889] [2022-01-11 05:32:32,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311588889] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:32,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:32,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:32,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025807020] [2022-01-11 05:32:32,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:32,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:32,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:32,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:32,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:32,747 INFO L87 Difference]: Start difference. First operand 11195 states and 20405 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:34,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:34,151 INFO L93 Difference]: Finished difference Result 23195 states and 42371 transitions. [2022-01-11 05:32:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:34,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-01-11 05:32:34,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:34,176 INFO L225 Difference]: With dead ends: 23195 [2022-01-11 05:32:34,177 INFO L226 Difference]: Without dead ends: 14778 [2022-01-11 05:32:34,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:34,188 INFO L933 BasicCegarLoop]: 3547 mSDtfsCounter, 2213 mSDsluCounter, 3183 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2213 SdHoareTripleChecker+Valid, 6730 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:34,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2213 Valid, 6730 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:32:34,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14778 states. [2022-01-11 05:32:35,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14778 to 11195. [2022-01-11 05:32:35,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11195 states, 11191 states have (on average 1.8147618622107051) internal successors, (20309), 11194 states have internal predecessors, (20309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:35,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11195 states to 11195 states and 20309 transitions. [2022-01-11 05:32:35,109 INFO L78 Accepts]: Start accepts. Automaton has 11195 states and 20309 transitions. Word has length 114 [2022-01-11 05:32:35,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:35,110 INFO L470 AbstractCegarLoop]: Abstraction has 11195 states and 20309 transitions. [2022-01-11 05:32:35,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:35,110 INFO L276 IsEmpty]: Start isEmpty. Operand 11195 states and 20309 transitions. [2022-01-11 05:32:35,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-11 05:32:35,113 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:35,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:35,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 05:32:35,113 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:35,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:35,114 INFO L85 PathProgramCache]: Analyzing trace with hash -606160227, now seen corresponding path program 1 times [2022-01-11 05:32:35,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:35,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302786794] [2022-01-11 05:32:35,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:35,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:35,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:35,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:35,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302786794] [2022-01-11 05:32:35,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302786794] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:35,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:35,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:32:35,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129609232] [2022-01-11 05:32:35,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:35,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:35,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:35,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:35,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:35,162 INFO L87 Difference]: Start difference. First operand 11195 states and 20309 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:37,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:37,008 INFO L93 Difference]: Finished difference Result 29543 states and 53671 transitions. [2022-01-11 05:32:37,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:37,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-01-11 05:32:37,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:37,042 INFO L225 Difference]: With dead ends: 29543 [2022-01-11 05:32:37,042 INFO L226 Difference]: Without dead ends: 21214 [2022-01-11 05:32:37,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:37,053 INFO L933 BasicCegarLoop]: 3740 mSDtfsCounter, 3641 mSDsluCounter, 2993 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3641 SdHoareTripleChecker+Valid, 6733 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:37,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3641 Valid, 6733 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:32:37,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21214 states. [2022-01-11 05:32:38,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21214 to 21195. [2022-01-11 05:32:38,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21195 states, 21191 states have (on average 1.8211032985701476) internal successors, (38591), 21194 states have internal predecessors, (38591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:38,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21195 states to 21195 states and 38591 transitions. [2022-01-11 05:32:38,698 INFO L78 Accepts]: Start accepts. Automaton has 21195 states and 38591 transitions. Word has length 114 [2022-01-11 05:32:38,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:38,698 INFO L470 AbstractCegarLoop]: Abstraction has 21195 states and 38591 transitions. [2022-01-11 05:32:38,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:38,698 INFO L276 IsEmpty]: Start isEmpty. Operand 21195 states and 38591 transitions. [2022-01-11 05:32:38,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-11 05:32:38,702 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:38,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:38,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 05:32:38,702 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:38,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:38,702 INFO L85 PathProgramCache]: Analyzing trace with hash 197695442, now seen corresponding path program 1 times [2022-01-11 05:32:38,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:38,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857871902] [2022-01-11 05:32:38,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:38,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:38,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:38,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:38,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857871902] [2022-01-11 05:32:38,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857871902] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:38,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:38,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:32:38,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229285217] [2022-01-11 05:32:38,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:38,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:38,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:38,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:38,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:38,764 INFO L87 Difference]: Start difference. First operand 21195 states and 38591 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:41,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:32:41,248 INFO L93 Difference]: Finished difference Result 39667 states and 71751 transitions. [2022-01-11 05:32:41,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:32:41,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-01-11 05:32:41,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:32:41,297 INFO L225 Difference]: With dead ends: 39667 [2022-01-11 05:32:41,297 INFO L226 Difference]: Without dead ends: 30368 [2022-01-11 05:32:41,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:41,310 INFO L933 BasicCegarLoop]: 3727 mSDtfsCounter, 3619 mSDsluCounter, 2016 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3619 SdHoareTripleChecker+Valid, 5743 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:32:41,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3619 Valid, 5743 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:32:41,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30368 states. [2022-01-11 05:32:43,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30368 to 30301. [2022-01-11 05:32:43,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30301 states, 30297 states have (on average 1.8130177905403175) internal successors, (54929), 30300 states have internal predecessors, (54929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:43,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30301 states to 30301 states and 54929 transitions. [2022-01-11 05:32:43,922 INFO L78 Accepts]: Start accepts. Automaton has 30301 states and 54929 transitions. Word has length 115 [2022-01-11 05:32:43,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:32:43,922 INFO L470 AbstractCegarLoop]: Abstraction has 30301 states and 54929 transitions. [2022-01-11 05:32:43,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:32:43,922 INFO L276 IsEmpty]: Start isEmpty. Operand 30301 states and 54929 transitions. [2022-01-11 05:32:43,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-11 05:32:43,926 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:32:43,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:32:43,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-11 05:32:43,928 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:32:43,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:32:43,928 INFO L85 PathProgramCache]: Analyzing trace with hash 2074008251, now seen corresponding path program 1 times [2022-01-11 05:32:43,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:32:43,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797918914] [2022-01-11 05:32:43,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:32:43,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:32:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:32:43,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:32:43,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:32:43,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797918914] [2022-01-11 05:32:43,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797918914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:32:43,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:32:43,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:32:43,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590752699] [2022-01-11 05:32:43,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:32:43,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:32:43,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:32:43,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:32:43,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:32:43,972 INFO L87 Difference]: Start difference. First operand 30301 states and 54929 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)