/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec14_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:43:16,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:43:16,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:43:16,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:43:16,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:43:16,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:43:16,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:43:16,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:43:16,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:43:16,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:43:16,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:43:16,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:43:16,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:43:16,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:43:16,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:43:16,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:43:16,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:43:16,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:43:16,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:43:16,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:43:16,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:43:16,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:43:16,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:43:16,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:43:16,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:43:16,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:43:16,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:43:16,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:43:16,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:43:16,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:43:16,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:43:16,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:43:16,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:43:16,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:43:16,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:43:16,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:43:16,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:43:16,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:43:16,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:43:16,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:43:16,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:43:16,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:43:16,423 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:43:16,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:43:16,424 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:43:16,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:43:16,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:43:16,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:43:16,425 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:43:16,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:43:16,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:43:16,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:43:16,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:43:16,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:43:16,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:43:16,426 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:43:16,426 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:43:16,426 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:43:16,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:43:16,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:43:16,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:43:16,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:43:16,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:43:16,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:43:16,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:43:16,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:43:16,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:43:16,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:43:16,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:43:16,428 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:43:16,428 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:43:16,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:43:16,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:43:16,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:43:16,429 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:43:16,429 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:43:16,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:43:16,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:43:16,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:43:16,685 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:43:16,686 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:43:16,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product31.cil.c [2022-01-10 23:43:16,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41690c8b5/329489ec8b2044f7baf46170609dfc50/FLAG7bc675c38 [2022-01-10 23:43:17,197 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:43:17,197 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product31.cil.c [2022-01-10 23:43:17,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41690c8b5/329489ec8b2044f7baf46170609dfc50/FLAG7bc675c38 [2022-01-10 23:43:17,225 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41690c8b5/329489ec8b2044f7baf46170609dfc50 [2022-01-10 23:43:17,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:43:17,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:43:17,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:43:17,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:43:17,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:43:17,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:43:17" (1/1) ... [2022-01-10 23:43:17,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fdfd1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:17, skipping insertion in model container [2022-01-10 23:43:17,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:43:17" (1/1) ... [2022-01-10 23:43:17,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:43:17,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:43:17,848 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_spec14_product31.cil.c[71150,71163] [2022-01-10 23:43:17,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:43:17,861 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:43:17,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:43:17,960 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_spec14_product31.cil.c[71150,71163] [2022-01-10 23:43:17,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:43:17,965 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:43:18,048 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_spec14_product31.cil.c[71150,71163] [2022-01-10 23:43:18,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:43:18,068 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:43:18,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:18 WrapperNode [2022-01-10 23:43:18,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:43:18,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:43:18,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:43:18,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:43:18,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:18" (1/1) ... [2022-01-10 23:43:18,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:18" (1/1) ... [2022-01-10 23:43:18,354 INFO L137 Inliner]: procedures = 96, calls = 342, calls flagged for inlining = 195, calls inlined = 1041, statements flattened = 34302 [2022-01-10 23:43:18,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:43:18,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:43:18,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:43:18,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:43:18,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:18" (1/1) ... [2022-01-10 23:43:18,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:18" (1/1) ... [2022-01-10 23:43:18,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:18" (1/1) ... [2022-01-10 23:43:18,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:18" (1/1) ... [2022-01-10 23:43:18,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:18" (1/1) ... [2022-01-10 23:43:18,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:18" (1/1) ... [2022-01-10 23:43:18,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:18" (1/1) ... [2022-01-10 23:43:19,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:43:19,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:43:19,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:43:19,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:43:19,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:18" (1/1) ... [2022-01-10 23:43:19,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:43:19,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:43:19,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 23:43:19,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 23:43:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:43:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:43:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:43:19,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:43:19,214 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:43:19,215 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:43:29,609 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:43:29,647 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:43:29,647 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:43:29,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:43:29 BoogieIcfgContainer [2022-01-10 23:43:29,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:43:29,655 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:43:29,655 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:43:29,656 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:43:29,658 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:43:29" (1/1) ... [2022-01-10 23:43:31,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:43:31 BasicIcfg [2022-01-10 23:43:31,062 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:43:31,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:43:31,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:43:31,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:43:31,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:43:17" (1/4) ... [2022-01-10 23:43:31,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756fbfe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:43:31, skipping insertion in model container [2022-01-10 23:43:31,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:43:18" (2/4) ... [2022-01-10 23:43:31,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756fbfe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:43:31, skipping insertion in model container [2022-01-10 23:43:31,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:43:29" (3/4) ... [2022-01-10 23:43:31,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756fbfe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:43:31, skipping insertion in model container [2022-01-10 23:43:31,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:43:31" (4/4) ... [2022-01-10 23:43:31,067 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product31.cil.cTransformedIcfg [2022-01-10 23:43:31,070 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:43:31,070 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 23:43:31,128 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:43:31,133 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 23:43:31,133 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 23:43:31,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 8991 states, 8985 states have (on average 1.8717863105175292) internal successors, (16818), 8990 states have internal predecessors, (16818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:31,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-10 23:43:31,242 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:31,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:43:31,243 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:31,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:31,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1918235712, now seen corresponding path program 1 times [2022-01-10 23:43:31,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:31,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19000967] [2022-01-10 23:43:31,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:31,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:31,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:31,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:31,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19000967] [2022-01-10 23:43:31,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19000967] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:31,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:31,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:43:31,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746917315] [2022-01-10 23:43:31,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:31,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:43:31,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:31,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:43:31,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:43:31,508 INFO L87 Difference]: Start difference. First operand has 8991 states, 8985 states have (on average 1.8717863105175292) internal successors, (16818), 8990 states have internal predecessors, (16818), 0 states have call successors, (0), 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 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:32,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:32,103 INFO L93 Difference]: Finished difference Result 21593 states and 40397 transitions. [2022-01-10 23:43:32,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:43:32,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-01-10 23:43:32,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:32,169 INFO L225 Difference]: With dead ends: 21593 [2022-01-10 23:43:32,170 INFO L226 Difference]: Without dead ends: 12601 [2022-01-10 23:43:32,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:43:32,196 INFO L933 BasicCegarLoop]: 23576 mSDtfsCounter, 16780 mSDsluCounter, 6789 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16780 SdHoareTripleChecker+Valid, 30365 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:32,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16780 Valid, 30365 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:43:32,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12601 states. [2022-01-10 23:43:32,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12601 to 8979. [2022-01-10 23:43:32,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8979 states, 8974 states have (on average 1.8710719857365723) internal successors, (16791), 8978 states have internal predecessors, (16791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:32,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8979 states to 8979 states and 16791 transitions. [2022-01-10 23:43:32,455 INFO L78 Accepts]: Start accepts. Automaton has 8979 states and 16791 transitions. Word has length 48 [2022-01-10 23:43:32,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:32,455 INFO L470 AbstractCegarLoop]: Abstraction has 8979 states and 16791 transitions. [2022-01-10 23:43:32,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:32,455 INFO L276 IsEmpty]: Start isEmpty. Operand 8979 states and 16791 transitions. [2022-01-10 23:43:32,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 23:43:32,458 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:32,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:43:32,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:43:32,459 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:32,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:32,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1232695595, now seen corresponding path program 1 times [2022-01-10 23:43:32,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:32,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967536528] [2022-01-10 23:43:32,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:32,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:32,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:32,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967536528] [2022-01-10 23:43:32,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967536528] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:32,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:32,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:43:32,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348133242] [2022-01-10 23:43:32,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:32,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:43:32,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:32,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:43:32,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:43:32,616 INFO L87 Difference]: Start difference. First operand 8979 states and 16791 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:33,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:33,933 INFO L93 Difference]: Finished difference Result 36055 states and 67433 transitions. [2022-01-10 23:43:33,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 23:43:33,934 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-10 23:43:33,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:34,022 INFO L225 Difference]: With dead ends: 36055 [2022-01-10 23:43:34,022 INFO L226 Difference]: Without dead ends: 27089 [2022-01-10 23:43:34,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:43:34,038 INFO L933 BasicCegarLoop]: 50637 mSDtfsCounter, 60644 mSDsluCounter, 54202 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60644 SdHoareTripleChecker+Valid, 104839 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:34,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60644 Valid, 104839 Invalid, 42 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:43:34,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27089 states. [2022-01-10 23:43:34,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27089 to 8979. [2022-01-10 23:43:34,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8979 states, 8974 states have (on average 1.8708491196790729) internal successors, (16789), 8978 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:34,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8979 states to 8979 states and 16789 transitions. [2022-01-10 23:43:34,371 INFO L78 Accepts]: Start accepts. Automaton has 8979 states and 16789 transitions. Word has length 53 [2022-01-10 23:43:34,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:34,372 INFO L470 AbstractCegarLoop]: Abstraction has 8979 states and 16789 transitions. [2022-01-10 23:43:34,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:34,373 INFO L276 IsEmpty]: Start isEmpty. Operand 8979 states and 16789 transitions. [2022-01-10 23:43:34,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 23:43:34,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:34,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:43:34,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:43:34,375 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:34,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:34,376 INFO L85 PathProgramCache]: Analyzing trace with hash 702964692, now seen corresponding path program 1 times [2022-01-10 23:43:34,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:34,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446702372] [2022-01-10 23:43:34,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:34,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:34,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:34,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:34,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446702372] [2022-01-10 23:43:34,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446702372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:34,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:34,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:43:34,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810364379] [2022-01-10 23:43:34,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:34,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:43:34,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:34,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:43:34,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:43:34,423 INFO L87 Difference]: Start difference. First operand 8979 states and 16789 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:35,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:35,012 INFO L93 Difference]: Finished difference Result 21495 states and 40196 transitions. [2022-01-10 23:43:35,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:43:35,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-10 23:43:35,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:35,034 INFO L225 Difference]: With dead ends: 21495 [2022-01-10 23:43:35,035 INFO L226 Difference]: Without dead ends: 12565 [2022-01-10 23:43:35,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:43:35,049 INFO L933 BasicCegarLoop]: 23431 mSDtfsCounter, 16678 mSDsluCounter, 6725 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16678 SdHoareTripleChecker+Valid, 30156 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 [2022-01-10 23:43:35,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16678 Valid, 30156 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:43:35,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12565 states. [2022-01-10 23:43:35,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12565 to 8979. [2022-01-10 23:43:35,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8979 states, 8974 states have (on average 1.8680632939603299) internal successors, (16764), 8978 states have internal predecessors, (16764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:35,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8979 states to 8979 states and 16764 transitions. [2022-01-10 23:43:35,280 INFO L78 Accepts]: Start accepts. Automaton has 8979 states and 16764 transitions. Word has length 53 [2022-01-10 23:43:35,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:35,281 INFO L470 AbstractCegarLoop]: Abstraction has 8979 states and 16764 transitions. [2022-01-10 23:43:35,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:35,281 INFO L276 IsEmpty]: Start isEmpty. Operand 8979 states and 16764 transitions. [2022-01-10 23:43:35,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 23:43:35,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:35,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:43:35,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:43:35,284 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:35,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:35,284 INFO L85 PathProgramCache]: Analyzing trace with hash 506312597, now seen corresponding path program 1 times [2022-01-10 23:43:35,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:35,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369269976] [2022-01-10 23:43:35,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:35,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:35,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:35,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:35,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369269976] [2022-01-10 23:43:35,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369269976] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:35,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:35,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:43:35,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800588590] [2022-01-10 23:43:35,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:35,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:43:35,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:35,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:43:35,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:43:35,368 INFO L87 Difference]: Start difference. First operand 8979 states and 16764 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:35,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:35,694 INFO L93 Difference]: Finished difference Result 17402 states and 32441 transitions. [2022-01-10 23:43:35,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:43:35,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-10 23:43:35,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:35,712 INFO L225 Difference]: With dead ends: 17402 [2022-01-10 23:43:35,712 INFO L226 Difference]: Without dead ends: 9414 [2022-01-10 23:43:35,721 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 [2022-01-10 23:43:35,727 INFO L933 BasicCegarLoop]: 17479 mSDtfsCounter, 9052 mSDsluCounter, 8378 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9052 SdHoareTripleChecker+Valid, 25857 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:35,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9052 Valid, 25857 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:43:35,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9414 states. [2022-01-10 23:43:35,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9414 to 9404. [2022-01-10 23:43:35,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9404 states, 9399 states have (on average 1.8601978933929142) internal successors, (17484), 9403 states have internal predecessors, (17484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:35,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9404 states to 9404 states and 17484 transitions. [2022-01-10 23:43:35,948 INFO L78 Accepts]: Start accepts. Automaton has 9404 states and 17484 transitions. Word has length 56 [2022-01-10 23:43:35,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:35,950 INFO L470 AbstractCegarLoop]: Abstraction has 9404 states and 17484 transitions. [2022-01-10 23:43:35,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:35,951 INFO L276 IsEmpty]: Start isEmpty. Operand 9404 states and 17484 transitions. [2022-01-10 23:43:35,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 23:43:35,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:35,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:43:35,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:43:35,955 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)] === [2022-01-10 23:43:35,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:35,956 INFO L85 PathProgramCache]: Analyzing trace with hash 573319350, now seen corresponding path program 1 times [2022-01-10 23:43:35,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:35,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101922009] [2022-01-10 23:43:35,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:35,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:36,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:36,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:36,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101922009] [2022-01-10 23:43:36,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101922009] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:36,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:36,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:43:36,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640906565] [2022-01-10 23:43:36,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:36,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:43:36,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:36,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:43:36,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:43:36,066 INFO L87 Difference]: Start difference. First operand 9404 states and 17484 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:37,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:37,154 INFO L93 Difference]: Finished difference Result 39470 states and 73428 transitions. [2022-01-10 23:43:37,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:43:37,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-10 23:43:37,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:37,214 INFO L225 Difference]: With dead ends: 39470 [2022-01-10 23:43:37,214 INFO L226 Difference]: Without dead ends: 30094 [2022-01-10 23:43:37,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:43:37,230 INFO L933 BasicCegarLoop]: 46787 mSDtfsCounter, 49994 mSDsluCounter, 43606 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49994 SdHoareTripleChecker+Valid, 90393 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:37,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49994 Valid, 90393 Invalid, 58 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:43:37,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30094 states. [2022-01-10 23:43:37,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30094 to 9389. [2022-01-10 23:43:37,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9389 states, 9384 states have (on average 1.8610400682011936) internal successors, (17464), 9388 states have internal predecessors, (17464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:37,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9389 states to 9389 states and 17464 transitions. [2022-01-10 23:43:37,814 INFO L78 Accepts]: Start accepts. Automaton has 9389 states and 17464 transitions. Word has length 56 [2022-01-10 23:43:37,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:37,818 INFO L470 AbstractCegarLoop]: Abstraction has 9389 states and 17464 transitions. [2022-01-10 23:43:37,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:37,819 INFO L276 IsEmpty]: Start isEmpty. Operand 9389 states and 17464 transitions. [2022-01-10 23:43:37,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 23:43:37,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:37,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:43:37,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:43:37,822 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:37,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:37,822 INFO L85 PathProgramCache]: Analyzing trace with hash -2057642673, now seen corresponding path program 1 times [2022-01-10 23:43:37,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:37,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722653367] [2022-01-10 23:43:37,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:37,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:37,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:37,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:37,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722653367] [2022-01-10 23:43:37,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722653367] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:37,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:37,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:43:37,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11254190] [2022-01-10 23:43:37,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:37,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:43:37,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:37,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:43:37,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:43:37,887 INFO L87 Difference]: Start difference. First operand 9389 states and 17464 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:38,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:38,735 INFO L93 Difference]: Finished difference Result 26364 states and 49045 transitions. [2022-01-10 23:43:38,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:43:38,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-10 23:43:38,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:38,767 INFO L225 Difference]: With dead ends: 26364 [2022-01-10 23:43:38,767 INFO L226 Difference]: Without dead ends: 16997 [2022-01-10 23:43:38,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:43:38,778 INFO L933 BasicCegarLoop]: 16712 mSDtfsCounter, 40102 mSDsluCounter, 20171 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40102 SdHoareTripleChecker+Valid, 36883 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:38,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40102 Valid, 36883 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:43:38,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16997 states. [2022-01-10 23:43:39,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16997 to 9387. [2022-01-10 23:43:39,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9387 states, 9382 states have (on average 1.86079727137071) internal successors, (17458), 9386 states have internal predecessors, (17458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:39,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9387 states to 9387 states and 17458 transitions. [2022-01-10 23:43:39,201 INFO L78 Accepts]: Start accepts. Automaton has 9387 states and 17458 transitions. Word has length 58 [2022-01-10 23:43:39,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:39,202 INFO L470 AbstractCegarLoop]: Abstraction has 9387 states and 17458 transitions. [2022-01-10 23:43:39,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:39,202 INFO L276 IsEmpty]: Start isEmpty. Operand 9387 states and 17458 transitions. [2022-01-10 23:43:39,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 23:43:39,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:39,204 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] [2022-01-10 23:43:39,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:43:39,204 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)] === [2022-01-10 23:43:39,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:39,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1286185106, now seen corresponding path program 1 times [2022-01-10 23:43:39,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:39,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389555188] [2022-01-10 23:43:39,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:39,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:39,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:39,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:39,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389555188] [2022-01-10 23:43:39,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389555188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:39,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:39,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:43:39,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744077668] [2022-01-10 23:43:39,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:39,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:43:39,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:39,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:43:39,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:43:39,282 INFO L87 Difference]: Start difference. First operand 9387 states and 17458 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:39,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:39,982 INFO L93 Difference]: Finished difference Result 26330 states and 48976 transitions. [2022-01-10 23:43:39,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 23:43:39,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-10 23:43:39,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:40,012 INFO L225 Difference]: With dead ends: 26330 [2022-01-10 23:43:40,012 INFO L226 Difference]: Without dead ends: 16971 [2022-01-10 23:43:40,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:43:40,022 INFO L933 BasicCegarLoop]: 16694 mSDtfsCounter, 46808 mSDsluCounter, 20134 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46808 SdHoareTripleChecker+Valid, 36828 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:40,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46808 Valid, 36828 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:43:40,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16971 states. [2022-01-10 23:43:40,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16971 to 9391. [2022-01-10 23:43:40,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9391 states, 9386 states have (on average 1.860323886639676) internal successors, (17461), 9390 states have internal predecessors, (17461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:40,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9391 states to 9391 states and 17461 transitions. [2022-01-10 23:43:40,346 INFO L78 Accepts]: Start accepts. Automaton has 9391 states and 17461 transitions. Word has length 59 [2022-01-10 23:43:40,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:40,346 INFO L470 AbstractCegarLoop]: Abstraction has 9391 states and 17461 transitions. [2022-01-10 23:43:40,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:40,347 INFO L276 IsEmpty]: Start isEmpty. Operand 9391 states and 17461 transitions. [2022-01-10 23:43:40,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 23:43:40,348 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:40,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:43:40,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:43:40,349 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:40,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:40,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1828105385, now seen corresponding path program 1 times [2022-01-10 23:43:40,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:40,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346596745] [2022-01-10 23:43:40,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:40,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:40,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:40,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:40,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346596745] [2022-01-10 23:43:40,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346596745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:40,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:40,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:43:40,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320019261] [2022-01-10 23:43:40,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:40,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:43:40,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:40,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:43:40,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:43:40,402 INFO L87 Difference]: Start difference. First operand 9391 states and 17461 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:44,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:44,100 INFO L93 Difference]: Finished difference Result 25406 states and 47221 transitions. [2022-01-10 23:43:44,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:43:44,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-10 23:43:44,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:44,152 INFO L225 Difference]: With dead ends: 25406 [2022-01-10 23:43:44,157 INFO L226 Difference]: Without dead ends: 16051 [2022-01-10 23:43:44,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:43:44,187 INFO L933 BasicCegarLoop]: 16783 mSDtfsCounter, 41093 mSDsluCounter, 11932 mSDsCounter, 0 mSdLazyCounter, 3075 mSolverCounterSat, 750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41093 SdHoareTripleChecker+Valid, 28715 SdHoareTripleChecker+Invalid, 3825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 750 IncrementalHoareTripleChecker+Valid, 3075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:44,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41093 Valid, 28715 Invalid, 3825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [750 Valid, 3075 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-10 23:43:44,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16051 states. [2022-01-10 23:43:44,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16051 to 9391. [2022-01-10 23:43:44,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9391 states, 9386 states have (on average 1.8215427232047732) internal successors, (17097), 9390 states have internal predecessors, (17097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:44,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9391 states to 9391 states and 17097 transitions. [2022-01-10 23:43:44,644 INFO L78 Accepts]: Start accepts. Automaton has 9391 states and 17097 transitions. Word has length 60 [2022-01-10 23:43:44,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:44,645 INFO L470 AbstractCegarLoop]: Abstraction has 9391 states and 17097 transitions. [2022-01-10 23:43:44,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:44,645 INFO L276 IsEmpty]: Start isEmpty. Operand 9391 states and 17097 transitions. [2022-01-10 23:43:44,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 23:43:44,647 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:44,648 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] [2022-01-10 23:43:44,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:43:44,648 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:44,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:44,648 INFO L85 PathProgramCache]: Analyzing trace with hash 4190570, now seen corresponding path program 1 times [2022-01-10 23:43:44,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:44,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134616226] [2022-01-10 23:43:44,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:44,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:44,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:44,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:44,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134616226] [2022-01-10 23:43:44,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134616226] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:44,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:44,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:43:44,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127280284] [2022-01-10 23:43:44,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:44,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:43:44,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:44,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:43:44,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:43:44,756 INFO L87 Difference]: Start difference. First operand 9391 states and 17097 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:57,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:43:57,860 INFO L93 Difference]: Finished difference Result 90929 states and 167303 transitions. [2022-01-10 23:43:57,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 23:43:57,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-01-10 23:43:57,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:43:58,107 INFO L225 Difference]: With dead ends: 90929 [2022-01-10 23:43:58,107 INFO L226 Difference]: Without dead ends: 81601 [2022-01-10 23:43:58,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-10 23:43:58,162 INFO L933 BasicCegarLoop]: 57540 mSDtfsCounter, 130095 mSDsluCounter, 213273 mSDsCounter, 0 mSdLazyCounter, 12843 mSolverCounterSat, 852 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130095 SdHoareTripleChecker+Valid, 270813 SdHoareTripleChecker+Invalid, 13695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 852 IncrementalHoareTripleChecker+Valid, 12843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-01-10 23:43:58,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130095 Valid, 270813 Invalid, 13695 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [852 Valid, 12843 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-01-10 23:43:58,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81601 states. [2022-01-10 23:43:59,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81601 to 18537. [2022-01-10 23:43:59,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18537 states, 18532 states have (on average 1.8221994388085474) internal successors, (33769), 18536 states have internal predecessors, (33769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:59,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18537 states to 18537 states and 33769 transitions. [2022-01-10 23:43:59,730 INFO L78 Accepts]: Start accepts. Automaton has 18537 states and 33769 transitions. Word has length 72 [2022-01-10 23:43:59,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:43:59,731 INFO L470 AbstractCegarLoop]: Abstraction has 18537 states and 33769 transitions. [2022-01-10 23:43:59,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:43:59,734 INFO L276 IsEmpty]: Start isEmpty. Operand 18537 states and 33769 transitions. [2022-01-10 23:43:59,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 23:43:59,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:43:59,755 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] [2022-01-10 23:43:59,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:43:59,755 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:43:59,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:43:59,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1524387092, now seen corresponding path program 1 times [2022-01-10 23:43:59,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:43:59,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856560516] [2022-01-10 23:43:59,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:43:59,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:43:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:43:59,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:43:59,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:43:59,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856560516] [2022-01-10 23:43:59,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856560516] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:43:59,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:43:59,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:43:59,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380299529] [2022-01-10 23:43:59,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:43:59,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:43:59,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:43:59,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:43:59,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:43:59,871 INFO L87 Difference]: Start difference. First operand 18537 states and 33769 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:10,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:10,445 INFO L93 Difference]: Finished difference Result 97078 states and 178907 transitions. [2022-01-10 23:44:10,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 23:44:10,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-01-10 23:44:10,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:10,579 INFO L225 Difference]: With dead ends: 97078 [2022-01-10 23:44:10,579 INFO L226 Difference]: Without dead ends: 81335 [2022-01-10 23:44:10,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-10 23:44:10,607 INFO L933 BasicCegarLoop]: 66219 mSDtfsCounter, 104199 mSDsluCounter, 196326 mSDsCounter, 0 mSdLazyCounter, 8596 mSolverCounterSat, 827 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104199 SdHoareTripleChecker+Valid, 262545 SdHoareTripleChecker+Invalid, 9423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 827 IncrementalHoareTripleChecker+Valid, 8596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:10,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104199 Valid, 262545 Invalid, 9423 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [827 Valid, 8596 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-01-10 23:44:10,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81335 states. [2022-01-10 23:44:11,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81335 to 18557. [2022-01-10 23:44:11,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18557 states, 18552 states have (on average 1.8207740405347133) internal successors, (33779), 18556 states have internal predecessors, (33779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:11,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18557 states to 18557 states and 33779 transitions. [2022-01-10 23:44:11,982 INFO L78 Accepts]: Start accepts. Automaton has 18557 states and 33779 transitions. Word has length 75 [2022-01-10 23:44:11,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:11,982 INFO L470 AbstractCegarLoop]: Abstraction has 18557 states and 33779 transitions. [2022-01-10 23:44:11,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:11,983 INFO L276 IsEmpty]: Start isEmpty. Operand 18557 states and 33779 transitions. [2022-01-10 23:44:11,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 23:44:11,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:11,986 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] [2022-01-10 23:44:11,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:44:11,987 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:11,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:11,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1635329000, now seen corresponding path program 1 times [2022-01-10 23:44:11,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:11,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919864282] [2022-01-10 23:44:11,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:11,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:12,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:12,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:12,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919864282] [2022-01-10 23:44:12,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919864282] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:12,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:12,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:44:12,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577350210] [2022-01-10 23:44:12,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:12,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:44:12,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:12,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:44:12,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:44:12,049 INFO L87 Difference]: Start difference. First operand 18557 states and 33779 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:13,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:13,486 INFO L93 Difference]: Finished difference Result 42522 states and 77399 transitions. [2022-01-10 23:44:13,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 23:44:13,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-01-10 23:44:13,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:13,521 INFO L225 Difference]: With dead ends: 42522 [2022-01-10 23:44:13,522 INFO L226 Difference]: Without dead ends: 23990 [2022-01-10 23:44:13,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:44:13,535 INFO L933 BasicCegarLoop]: 20284 mSDtfsCounter, 74127 mSDsluCounter, 23704 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74127 SdHoareTripleChecker+Valid, 43988 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:13,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74127 Valid, 43988 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:13,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23990 states. [2022-01-10 23:44:14,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23990 to 12956. [2022-01-10 23:44:14,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12956 states, 12951 states have (on average 1.8197822561964327) internal successors, (23568), 12955 states have internal predecessors, (23568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:14,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12956 states to 12956 states and 23568 transitions. [2022-01-10 23:44:14,264 INFO L78 Accepts]: Start accepts. Automaton has 12956 states and 23568 transitions. Word has length 75 [2022-01-10 23:44:14,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:14,264 INFO L470 AbstractCegarLoop]: Abstraction has 12956 states and 23568 transitions. [2022-01-10 23:44:14,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:14,264 INFO L276 IsEmpty]: Start isEmpty. Operand 12956 states and 23568 transitions. [2022-01-10 23:44:14,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 23:44:14,266 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:14,266 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] [2022-01-10 23:44:14,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:44:14,266 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:14,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:14,267 INFO L85 PathProgramCache]: Analyzing trace with hash 783235021, now seen corresponding path program 1 times [2022-01-10 23:44:14,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:14,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826732075] [2022-01-10 23:44:14,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:14,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:14,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:14,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:14,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826732075] [2022-01-10 23:44:14,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826732075] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:14,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:14,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:44:14,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399927757] [2022-01-10 23:44:14,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:14,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:14,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:14,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:14,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:14,309 INFO L87 Difference]: Start difference. First operand 12956 states and 23568 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 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) [2022-01-10 23:44:15,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:15,860 INFO L93 Difference]: Finished difference Result 36475 states and 66393 transitions. [2022-01-10 23:44:15,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:15,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 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 [2022-01-10 23:44:15,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:15,899 INFO L225 Difference]: With dead ends: 36475 [2022-01-10 23:44:15,900 INFO L226 Difference]: Without dead ends: 24519 [2022-01-10 23:44:15,928 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 [2022-01-10 23:44:15,929 INFO L933 BasicCegarLoop]: 16986 mSDtfsCounter, 16056 mSDsluCounter, 13842 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16056 SdHoareTripleChecker+Valid, 30828 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:15,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16056 Valid, 30828 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:44:15,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24519 states. [2022-01-10 23:44:17,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24519 to 24509. [2022-01-10 23:44:17,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24509 states, 24504 states have (on average 1.817458374142997) internal successors, (44535), 24508 states have internal predecessors, (44535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:17,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24509 states to 24509 states and 44535 transitions. [2022-01-10 23:44:17,299 INFO L78 Accepts]: Start accepts. Automaton has 24509 states and 44535 transitions. Word has length 81 [2022-01-10 23:44:17,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:17,299 INFO L470 AbstractCegarLoop]: Abstraction has 24509 states and 44535 transitions. [2022-01-10 23:44:17,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 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) [2022-01-10 23:44:17,300 INFO L276 IsEmpty]: Start isEmpty. Operand 24509 states and 44535 transitions. [2022-01-10 23:44:17,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 23:44:17,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:17,302 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] [2022-01-10 23:44:17,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 23:44:17,302 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:17,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:17,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1529225143, now seen corresponding path program 1 times [2022-01-10 23:44:17,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:17,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642055869] [2022-01-10 23:44:17,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:17,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:17,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:17,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:17,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642055869] [2022-01-10 23:44:17,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642055869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:17,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:17,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:44:17,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783565263] [2022-01-10 23:44:17,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:17,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:17,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:17,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:17,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:17,345 INFO L87 Difference]: Start difference. First operand 24509 states and 44535 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 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) [2022-01-10 23:44:20,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:20,344 INFO L93 Difference]: Finished difference Result 69760 states and 126767 transitions. [2022-01-10 23:44:20,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:20,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 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 [2022-01-10 23:44:20,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted.