/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_spec2_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:45:28,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:45:28,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:45:28,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:45:28,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:45:28,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:45:28,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:45:28,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:45:28,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:45:28,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:45:28,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:45:28,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:45:28,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:45:28,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:45:28,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:45:28,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:45:28,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:45:28,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:45:28,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:45:28,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:45:28,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:45:28,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:45:28,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:45:28,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:45:28,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:45:28,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:45:28,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:45:28,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:45:28,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:45:28,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:45:28,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:45:28,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:45:28,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:45:28,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:45:28,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:45:28,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:45:28,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:45:28,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:45:28,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:45:28,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:45:28,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:45:28,501 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 23:45:28,520 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:45:28,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:45:28,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:45:28,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:45:28,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:45:28,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:45:28,522 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:45:28,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:45:28,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:45:28,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:45:28,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:45:28,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:45:28,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:45:28,522 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:45:28,522 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:45:28,522 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:45:28,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:45:28,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:45:28,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:45:28,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:45:28,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:45:28,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:45:28,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:45:28,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:45:28,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:45:28,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:45:28,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:45:28,526 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:45:28,527 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:45:28,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:45:28,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:45:28,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:45:28,528 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:45:28,528 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:45:28,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:45:28,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:45:28,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:45:28,797 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:45:28,798 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:45:28,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product19.cil.c [2022-01-10 23:45:28,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abe05c7df/ed753877f55e44bb8c62110f9db43dc8/FLAGcd0d1ff53 [2022-01-10 23:45:29,257 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:45:29,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product19.cil.c [2022-01-10 23:45:29,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abe05c7df/ed753877f55e44bb8c62110f9db43dc8/FLAGcd0d1ff53 [2022-01-10 23:45:29,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abe05c7df/ed753877f55e44bb8c62110f9db43dc8 [2022-01-10 23:45:29,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:45:29,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:45:29,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:45:29,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:45:29,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:45:29,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:45:29" (1/1) ... [2022-01-10 23:45:29,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3decfd3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:29, skipping insertion in model container [2022-01-10 23:45:29,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:45:29" (1/1) ... [2022-01-10 23:45:29,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:45:29,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:45:29,923 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product19.cil.c[34453,34466] [2022-01-10 23:45:29,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:45:29,995 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:45:30,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:45:30,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product19.cil.c[34453,34466] [2022-01-10 23:45:30,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:45:30,069 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:45:30,101 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product19.cil.c[34453,34466] [2022-01-10 23:45:30,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:45:30,144 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:45:30,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:30 WrapperNode [2022-01-10 23:45:30,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:45:30,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:45:30,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:45:30,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:45:30,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:30" (1/1) ... [2022-01-10 23:45:30,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:30" (1/1) ... [2022-01-10 23:45:30,297 INFO L137 Inliner]: procedures = 96, calls = 340, calls flagged for inlining = 193, calls inlined = 306, statements flattened = 9056 [2022-01-10 23:45:30,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:45:30,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:45:30,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:45:30,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:45:30,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:30" (1/1) ... [2022-01-10 23:45:30,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:30" (1/1) ... [2022-01-10 23:45:30,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:30" (1/1) ... [2022-01-10 23:45:30,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:30" (1/1) ... [2022-01-10 23:45:30,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:30" (1/1) ... [2022-01-10 23:45:30,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:30" (1/1) ... [2022-01-10 23:45:30,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:30" (1/1) ... [2022-01-10 23:45:30,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:45:30,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:45:30,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:45:30,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:45:30,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:30" (1/1) ... [2022-01-10 23:45:30,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:45:30,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:45:30,532 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 23:45:30,555 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 23:45:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:45:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:45:30,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:45:30,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:45:30,664 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:45:30,665 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:45:33,811 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:45:33,854 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:45:33,854 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:45:33,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:45:33 BoogieIcfgContainer [2022-01-10 23:45:33,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:45:33,859 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:45:33,860 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:45:33,861 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:45:33,863 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:45:33" (1/1) ... [2022-01-10 23:45:34,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:45:34 BasicIcfg [2022-01-10 23:45:34,461 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:45:34,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:45:34,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:45:34,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:45:34,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:45:29" (1/4) ... [2022-01-10 23:45:34,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a91463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:45:34, skipping insertion in model container [2022-01-10 23:45:34,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:45:30" (2/4) ... [2022-01-10 23:45:34,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a91463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:45:34, skipping insertion in model container [2022-01-10 23:45:34,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:45:33" (3/4) ... [2022-01-10 23:45:34,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a91463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:45:34, skipping insertion in model container [2022-01-10 23:45:34,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:45:34" (4/4) ... [2022-01-10 23:45:34,468 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product19.cil.cTransformedIcfg [2022-01-10 23:45:34,471 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:45:34,471 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 23:45:34,524 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:45:34,528 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 23:45:34,529 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 23:45:34,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 2568 states, 2562 states have (on average 1.8622170179547228) internal successors, (4771), 2567 states have internal predecessors, (4771), 0 states have call successors, (0), 0 states 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 23:45:34,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 23:45:34,585 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:34,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:34,586 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 23:45:34,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:34,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1095089428, now seen corresponding path program 1 times [2022-01-10 23:45:34,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:34,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568919567] [2022-01-10 23:45:34,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:34,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:34,993 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 23:45:34,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:34,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568919567] [2022-01-10 23:45:34,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568919567] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:34,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:34,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:34,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033993130] [2022-01-10 23:45:34,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:34,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:34,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:35,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:35,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:35,043 INFO L87 Difference]: Start difference. First operand has 2568 states, 2562 states have (on average 1.8622170179547228) internal successors, (4771), 2567 states have internal predecessors, (4771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:35,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:35,191 INFO L93 Difference]: Finished difference Result 5121 states and 9519 transitions. [2022-01-10 23:45:35,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:35,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-10 23:45:35,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:35,212 INFO L225 Difference]: With dead ends: 5121 [2022-01-10 23:45:35,212 INFO L226 Difference]: Without dead ends: 2557 [2022-01-10 23:45:35,219 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 23:45:35,221 INFO L933 BasicCegarLoop]: 4750 mSDtfsCounter, 4745 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4745 SdHoareTripleChecker+Valid, 4761 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:35,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4745 Valid, 4761 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:35,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2022-01-10 23:45:35,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2557. [2022-01-10 23:45:35,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2552 states have (on average 1.8601097178683386) internal successors, (4747), 2556 states have internal predecessors, (4747), 0 states have call successors, (0), 0 states 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 23:45:35,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 4747 transitions. [2022-01-10 23:45:35,311 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 4747 transitions. Word has length 51 [2022-01-10 23:45:35,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:35,311 INFO L470 AbstractCegarLoop]: Abstraction has 2557 states and 4747 transitions. [2022-01-10 23:45:35,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:35,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 4747 transitions. [2022-01-10 23:45:35,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 23:45:35,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:35,314 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 23:45:35,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:45:35,314 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 23:45:35,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:35,315 INFO L85 PathProgramCache]: Analyzing trace with hash 118029958, now seen corresponding path program 1 times [2022-01-10 23:45:35,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:35,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631332592] [2022-01-10 23:45:35,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:35,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:35,425 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 23:45:35,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:35,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631332592] [2022-01-10 23:45:35,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631332592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:35,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:35,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:45:35,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033432425] [2022-01-10 23:45:35,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:35,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:45:35,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:35,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:45:35,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:45:35,428 INFO L87 Difference]: Start difference. First operand 2557 states and 4747 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:35,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:35,526 INFO L93 Difference]: Finished difference Result 5100 states and 9479 transitions. [2022-01-10 23:45:35,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:35,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-10 23:45:35,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:35,536 INFO L225 Difference]: With dead ends: 5100 [2022-01-10 23:45:35,536 INFO L226 Difference]: Without dead ends: 2557 [2022-01-10 23:45:35,540 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 23:45:35,541 INFO L933 BasicCegarLoop]: 4740 mSDtfsCounter, 4739 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4739 SdHoareTripleChecker+Valid, 4768 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:35,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4739 Valid, 4768 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:35,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2022-01-10 23:45:35,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2557. [2022-01-10 23:45:35,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2552 states have (on average 1.859717868338558) internal successors, (4746), 2556 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states 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 23:45:35,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 4746 transitions. [2022-01-10 23:45:35,669 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 4746 transitions. Word has length 58 [2022-01-10 23:45:35,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:35,670 INFO L470 AbstractCegarLoop]: Abstraction has 2557 states and 4746 transitions. [2022-01-10 23:45:35,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:35,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 4746 transitions. [2022-01-10 23:45:35,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 23:45:35,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:35,672 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 23:45:35,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:45:35,673 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 23:45:35,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:35,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1818770437, now seen corresponding path program 1 times [2022-01-10 23:45:35,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:35,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834604907] [2022-01-10 23:45:35,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:35,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:35,722 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 23:45:35,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:35,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834604907] [2022-01-10 23:45:35,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834604907] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:35,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:35,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:35,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502996690] [2022-01-10 23:45:35,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:35,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:35,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:35,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:35,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:35,724 INFO L87 Difference]: Start difference. First operand 2557 states and 4746 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:35,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:35,829 INFO L93 Difference]: Finished difference Result 5064 states and 9407 transitions. [2022-01-10 23:45:35,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:35,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-10 23:45:35,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:35,840 INFO L225 Difference]: With dead ends: 5064 [2022-01-10 23:45:35,840 INFO L226 Difference]: Without dead ends: 2557 [2022-01-10 23:45:35,848 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 23:45:35,850 INFO L933 BasicCegarLoop]: 4686 mSDtfsCounter, 4705 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4705 SdHoareTripleChecker+Valid, 4700 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:35,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4705 Valid, 4700 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:35,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2022-01-10 23:45:35,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2557. [2022-01-10 23:45:35,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2552 states have (on average 1.849921630094044) internal successors, (4721), 2556 states have internal predecessors, (4721), 0 states have call successors, (0), 0 states 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 23:45:35,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 4721 transitions. [2022-01-10 23:45:35,908 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 4721 transitions. Word has length 58 [2022-01-10 23:45:35,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:35,908 INFO L470 AbstractCegarLoop]: Abstraction has 2557 states and 4721 transitions. [2022-01-10 23:45:35,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:35,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 4721 transitions. [2022-01-10 23:45:35,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 23:45:35,911 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:35,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:35,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:45:35,911 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 23:45:35,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:35,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1075099338, now seen corresponding path program 1 times [2022-01-10 23:45:35,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:35,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987373073] [2022-01-10 23:45:35,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:35,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:36,033 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 23:45:36,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:36,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987373073] [2022-01-10 23:45:36,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987373073] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:36,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:36,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:36,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410349022] [2022-01-10 23:45:36,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:36,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:36,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:36,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:36,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:36,035 INFO L87 Difference]: Start difference. First operand 2557 states and 4721 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:36,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:36,198 INFO L93 Difference]: Finished difference Result 5763 states and 10688 transitions. [2022-01-10 23:45:36,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:36,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 23:45:36,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:36,215 INFO L225 Difference]: With dead ends: 5763 [2022-01-10 23:45:36,216 INFO L226 Difference]: Without dead ends: 4461 [2022-01-10 23:45:36,219 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 23:45:36,226 INFO L933 BasicCegarLoop]: 5186 mSDtfsCounter, 4655 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4655 SdHoareTripleChecker+Valid, 8733 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:36,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4655 Valid, 8733 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:36,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4461 states. [2022-01-10 23:45:36,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4461 to 4461. [2022-01-10 23:45:36,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4461 states, 4456 states have (on average 1.857495511669659) internal successors, (8277), 4460 states have internal predecessors, (8277), 0 states have call successors, (0), 0 states 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 23:45:36,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4461 states to 4461 states and 8277 transitions. [2022-01-10 23:45:36,352 INFO L78 Accepts]: Start accepts. Automaton has 4461 states and 8277 transitions. Word has length 61 [2022-01-10 23:45:36,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:36,352 INFO L470 AbstractCegarLoop]: Abstraction has 4461 states and 8277 transitions. [2022-01-10 23:45:36,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:36,353 INFO L276 IsEmpty]: Start isEmpty. Operand 4461 states and 8277 transitions. [2022-01-10 23:45:36,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 23:45:36,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:36,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:36,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:45:36,356 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:36,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:36,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1382244313, now seen corresponding path program 1 times [2022-01-10 23:45:36,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:36,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96018716] [2022-01-10 23:45:36,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:36,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:36,447 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 23:45:36,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:36,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96018716] [2022-01-10 23:45:36,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96018716] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:36,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:36,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:36,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736151172] [2022-01-10 23:45:36,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:36,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:36,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:36,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:36,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:36,449 INFO L87 Difference]: Start difference. First operand 4461 states and 8277 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:36,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:36,637 INFO L93 Difference]: Finished difference Result 10732 states and 19954 transitions. [2022-01-10 23:45:36,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:36,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-10 23:45:36,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:36,668 INFO L225 Difference]: With dead ends: 10732 [2022-01-10 23:45:36,668 INFO L226 Difference]: Without dead ends: 8152 [2022-01-10 23:45:36,674 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 23:45:36,674 INFO L933 BasicCegarLoop]: 4718 mSDtfsCounter, 4654 mSDsluCounter, 3550 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4654 SdHoareTripleChecker+Valid, 8268 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:36,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4654 Valid, 8268 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:36,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8152 states. [2022-01-10 23:45:36,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8152 to 8150. [2022-01-10 23:45:36,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8150 states, 8145 states have (on average 1.861632903621854) internal successors, (15163), 8149 states have internal predecessors, (15163), 0 states have call successors, (0), 0 states 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 23:45:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8150 states to 8150 states and 15163 transitions. [2022-01-10 23:45:36,903 INFO L78 Accepts]: Start accepts. Automaton has 8150 states and 15163 transitions. Word has length 63 [2022-01-10 23:45:36,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:36,908 INFO L470 AbstractCegarLoop]: Abstraction has 8150 states and 15163 transitions. [2022-01-10 23:45:36,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:36,909 INFO L276 IsEmpty]: Start isEmpty. Operand 8150 states and 15163 transitions. [2022-01-10 23:45:36,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 23:45:36,911 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:36,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:36,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:45:36,911 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:36,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:36,912 INFO L85 PathProgramCache]: Analyzing trace with hash -308125897, now seen corresponding path program 1 times [2022-01-10 23:45:36,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:36,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730392955] [2022-01-10 23:45:36,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:36,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:36,968 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 23:45:36,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:36,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730392955] [2022-01-10 23:45:36,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730392955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:36,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:36,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:36,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176605379] [2022-01-10 23:45:36,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:36,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:36,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:36,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:36,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:36,970 INFO L87 Difference]: Start difference. First operand 8150 states and 15163 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:37,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:37,244 INFO L93 Difference]: Finished difference Result 20420 states and 38015 transitions. [2022-01-10 23:45:37,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:37,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-10 23:45:37,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:37,284 INFO L225 Difference]: With dead ends: 20420 [2022-01-10 23:45:37,284 INFO L226 Difference]: Without dead ends: 15293 [2022-01-10 23:45:37,297 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 23:45:37,297 INFO L933 BasicCegarLoop]: 4718 mSDtfsCounter, 4642 mSDsluCounter, 3553 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4642 SdHoareTripleChecker+Valid, 8271 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:37,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4642 Valid, 8271 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:37,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15293 states. [2022-01-10 23:45:37,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15293 to 15289. [2022-01-10 23:45:37,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15289 states, 15284 states have (on average 1.8634519759225334) internal successors, (28481), 15288 states have internal predecessors, (28481), 0 states have call successors, (0), 0 states 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 23:45:37,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15289 states to 15289 states and 28481 transitions. [2022-01-10 23:45:37,759 INFO L78 Accepts]: Start accepts. Automaton has 15289 states and 28481 transitions. Word has length 64 [2022-01-10 23:45:37,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:37,759 INFO L470 AbstractCegarLoop]: Abstraction has 15289 states and 28481 transitions. [2022-01-10 23:45:37,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:37,759 INFO L276 IsEmpty]: Start isEmpty. Operand 15289 states and 28481 transitions. [2022-01-10 23:45:37,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 23:45:37,761 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:37,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:37,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:45:37,762 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:37,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:37,762 INFO L85 PathProgramCache]: Analyzing trace with hash -961953516, now seen corresponding path program 1 times [2022-01-10 23:45:37,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:37,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277880734] [2022-01-10 23:45:37,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:37,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:37,807 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 23:45:37,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:37,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277880734] [2022-01-10 23:45:37,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277880734] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:37,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:37,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:37,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524084943] [2022-01-10 23:45:37,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:37,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:37,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:37,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:37,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:37,809 INFO L87 Difference]: Start difference. First operand 15289 states and 28481 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:38,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:38,178 INFO L93 Difference]: Finished difference Result 39296 states and 73192 transitions. [2022-01-10 23:45:38,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:38,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-01-10 23:45:38,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:38,321 INFO L225 Difference]: With dead ends: 39296 [2022-01-10 23:45:38,321 INFO L226 Difference]: Without dead ends: 29094 [2022-01-10 23:45:38,336 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 23:45:38,337 INFO L933 BasicCegarLoop]: 4718 mSDtfsCounter, 4641 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4641 SdHoareTripleChecker+Valid, 8274 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:38,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4641 Valid, 8274 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:38,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29094 states. [2022-01-10 23:45:38,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29094 to 29088. [2022-01-10 23:45:38,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29088 states, 29083 states have (on average 1.8638723652993157) internal successors, (54207), 29087 states have internal predecessors, (54207), 0 states have call successors, (0), 0 states 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 23:45:38,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29088 states to 29088 states and 54207 transitions. [2022-01-10 23:45:38,989 INFO L78 Accepts]: Start accepts. Automaton has 29088 states and 54207 transitions. Word has length 65 [2022-01-10 23:45:38,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:38,989 INFO L470 AbstractCegarLoop]: Abstraction has 29088 states and 54207 transitions. [2022-01-10 23:45:38,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:38,990 INFO L276 IsEmpty]: Start isEmpty. Operand 29088 states and 54207 transitions. [2022-01-10 23:45:38,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 23:45:38,992 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:38,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:38,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:45:38,993 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:38,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:38,993 INFO L85 PathProgramCache]: Analyzing trace with hash 244226842, now seen corresponding path program 1 times [2022-01-10 23:45:38,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:38,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118630092] [2022-01-10 23:45:38,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:38,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:39,034 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 23:45:39,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:39,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118630092] [2022-01-10 23:45:39,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118630092] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:39,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:39,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:39,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944080480] [2022-01-10 23:45:39,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:39,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:39,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:39,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:39,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:39,036 INFO L87 Difference]: Start difference. First operand 29088 states and 54207 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:39,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:39,942 INFO L93 Difference]: Finished difference Result 76048 states and 141652 transitions. [2022-01-10 23:45:39,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:39,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-10 23:45:39,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:40,098 INFO L225 Difference]: With dead ends: 76048 [2022-01-10 23:45:40,098 INFO L226 Difference]: Without dead ends: 55728 [2022-01-10 23:45:40,133 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 23:45:40,134 INFO L933 BasicCegarLoop]: 4719 mSDtfsCounter, 4640 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4640 SdHoareTripleChecker+Valid, 8278 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:40,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4640 Valid, 8278 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:40,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55728 states. [2022-01-10 23:45:41,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55728 to 55720. [2022-01-10 23:45:41,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55720 states, 55715 states have (on average 1.8634658530018846) internal successors, (103823), 55719 states have internal predecessors, (103823), 0 states have call successors, (0), 0 states 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 23:45:41,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55720 states to 55720 states and 103823 transitions. [2022-01-10 23:45:41,380 INFO L78 Accepts]: Start accepts. Automaton has 55720 states and 103823 transitions. Word has length 66 [2022-01-10 23:45:41,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:41,380 INFO L470 AbstractCegarLoop]: Abstraction has 55720 states and 103823 transitions. [2022-01-10 23:45:41,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:41,380 INFO L276 IsEmpty]: Start isEmpty. Operand 55720 states and 103823 transitions. [2022-01-10 23:45:41,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 23:45:41,399 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:41,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:41,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:45:41,400 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 23:45:41,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:41,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1050047841, now seen corresponding path program 1 times [2022-01-10 23:45:41,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:41,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053999264] [2022-01-10 23:45:41,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:41,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:41,622 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 23:45:41,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:41,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053999264] [2022-01-10 23:45:41,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053999264] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:41,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:41,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:41,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510029151] [2022-01-10 23:45:41,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:41,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:41,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:41,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:41,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:41,625 INFO L87 Difference]: Start difference. First operand 55720 states and 103823 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:43,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:43,101 INFO L93 Difference]: Finished difference Result 113799 states and 211998 transitions. [2022-01-10 23:45:43,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:43,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 23:45:43,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:43,251 INFO L225 Difference]: With dead ends: 113799 [2022-01-10 23:45:43,251 INFO L226 Difference]: Without dead ends: 59068 [2022-01-10 23:45:43,313 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 23:45:43,314 INFO L933 BasicCegarLoop]: 5333 mSDtfsCounter, 3655 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3655 SdHoareTripleChecker+Valid, 7625 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:43,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3655 Valid, 7625 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 23:45:43,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59068 states. [2022-01-10 23:45:44,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59068 to 55720. [2022-01-10 23:45:44,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55720 states, 55715 states have (on average 1.8391456519788207) internal successors, (102468), 55719 states have internal predecessors, (102468), 0 states have call successors, (0), 0 states 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 23:45:44,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55720 states to 55720 states and 102468 transitions. [2022-01-10 23:45:44,639 INFO L78 Accepts]: Start accepts. Automaton has 55720 states and 102468 transitions. Word has length 108 [2022-01-10 23:45:44,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:44,640 INFO L470 AbstractCegarLoop]: Abstraction has 55720 states and 102468 transitions. [2022-01-10 23:45:44,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:44,640 INFO L276 IsEmpty]: Start isEmpty. Operand 55720 states and 102468 transitions. [2022-01-10 23:45:44,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 23:45:44,655 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:44,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:44,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:45:44,656 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 23:45:44,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:44,656 INFO L85 PathProgramCache]: Analyzing trace with hash 942503378, now seen corresponding path program 1 times [2022-01-10 23:45:44,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:44,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822229105] [2022-01-10 23:45:44,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:44,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:44,716 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 23:45:44,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:44,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822229105] [2022-01-10 23:45:44,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822229105] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:44,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:44,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:44,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243839554] [2022-01-10 23:45:44,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:44,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:44,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:44,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:44,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:44,718 INFO L87 Difference]: Start difference. First operand 55720 states and 102468 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:46,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:46,261 INFO L93 Difference]: Finished difference Result 115750 states and 212997 transitions. [2022-01-10 23:45:46,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:46,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-01-10 23:45:46,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:46,403 INFO L225 Difference]: With dead ends: 115750 [2022-01-10 23:45:46,403 INFO L226 Difference]: Without dead ends: 62305 [2022-01-10 23:45:46,539 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 23:45:46,541 INFO L933 BasicCegarLoop]: 5839 mSDtfsCounter, 3380 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3380 SdHoareTripleChecker+Valid, 8449 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:46,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3380 Valid, 8449 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 23:45:46,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62305 states. [2022-01-10 23:45:47,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62305 to 55720. [2022-01-10 23:45:47,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55720 states, 55715 states have (on average 1.8182356636453378) internal successors, (101303), 55719 states have internal predecessors, (101303), 0 states have call successors, (0), 0 states 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 23:45:47,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55720 states to 55720 states and 101303 transitions. [2022-01-10 23:45:47,796 INFO L78 Accepts]: Start accepts. Automaton has 55720 states and 101303 transitions. Word has length 113 [2022-01-10 23:45:47,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:47,796 INFO L470 AbstractCegarLoop]: Abstraction has 55720 states and 101303 transitions. [2022-01-10 23:45:47,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:47,797 INFO L276 IsEmpty]: Start isEmpty. Operand 55720 states and 101303 transitions. [2022-01-10 23:45:47,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 23:45:47,812 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:47,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:47,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:45:47,813 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 23:45:47,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:47,814 INFO L85 PathProgramCache]: Analyzing trace with hash 383376542, now seen corresponding path program 1 times [2022-01-10 23:45:47,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:47,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945778044] [2022-01-10 23:45:47,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:47,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:47,866 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 23:45:47,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:47,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945778044] [2022-01-10 23:45:47,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945778044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:47,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:47,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:47,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491698177] [2022-01-10 23:45:47,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:47,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:47,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:47,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:47,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:47,868 INFO L87 Difference]: Start difference. First operand 55720 states and 101303 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:49,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:49,642 INFO L93 Difference]: Finished difference Result 117374 states and 213929 transitions. [2022-01-10 23:45:49,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:49,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-10 23:45:49,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:49,790 INFO L225 Difference]: With dead ends: 117374 [2022-01-10 23:45:49,790 INFO L226 Difference]: Without dead ends: 66375 [2022-01-10 23:45:49,825 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 23:45:49,825 INFO L933 BasicCegarLoop]: 6237 mSDtfsCounter, 3227 mSDsluCounter, 2928 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3227 SdHoareTripleChecker+Valid, 9165 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:49,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3227 Valid, 9165 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 23:45:49,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66375 states. [2022-01-10 23:45:50,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66375 to 55720. [2022-01-10 23:45:50,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55720 states, 55715 states have (on average 1.801633312393431) internal successors, (100378), 55719 states have internal predecessors, (100378), 0 states have call successors, (0), 0 states 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 23:45:51,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55720 states to 55720 states and 100378 transitions. [2022-01-10 23:45:51,088 INFO L78 Accepts]: Start accepts. Automaton has 55720 states and 100378 transitions. Word has length 117 [2022-01-10 23:45:51,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:51,089 INFO L470 AbstractCegarLoop]: Abstraction has 55720 states and 100378 transitions. [2022-01-10 23:45:51,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:51,089 INFO L276 IsEmpty]: Start isEmpty. Operand 55720 states and 100378 transitions. [2022-01-10 23:45:51,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 23:45:51,105 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:51,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:51,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:45:51,106 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 23:45:51,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:51,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1120579070, now seen corresponding path program 1 times [2022-01-10 23:45:51,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:51,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359955933] [2022-01-10 23:45:51,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:51,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:51,180 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 23:45:51,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:51,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359955933] [2022-01-10 23:45:51,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359955933] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:51,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:51,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:51,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584208825] [2022-01-10 23:45:51,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:51,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:51,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:51,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:51,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:51,182 INFO L87 Difference]: Start difference. First operand 55720 states and 100378 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:52,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:52,859 INFO L93 Difference]: Finished difference Result 118818 states and 215241 transitions. [2022-01-10 23:45:52,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:52,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-01-10 23:45:52,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:52,982 INFO L225 Difference]: With dead ends: 118818 [2022-01-10 23:45:52,982 INFO L226 Difference]: Without dead ends: 71130 [2022-01-10 23:45:53,009 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 23:45:53,009 INFO L933 BasicCegarLoop]: 6625 mSDtfsCounter, 3094 mSDsluCounter, 3246 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3094 SdHoareTripleChecker+Valid, 9871 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:53,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3094 Valid, 9871 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 23:45:53,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71130 states. [2022-01-10 23:45:54,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71130 to 55720. [2022-01-10 23:45:54,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55720 states, 55715 states have (on average 1.7902360226150946) internal successors, (99743), 55719 states have internal predecessors, (99743), 0 states have call successors, (0), 0 states 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 23:45:54,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55720 states to 55720 states and 99743 transitions. [2022-01-10 23:45:54,410 INFO L78 Accepts]: Start accepts. Automaton has 55720 states and 99743 transitions. Word has length 120 [2022-01-10 23:45:54,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:54,410 INFO L470 AbstractCegarLoop]: Abstraction has 55720 states and 99743 transitions. [2022-01-10 23:45:54,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:54,410 INFO L276 IsEmpty]: Start isEmpty. Operand 55720 states and 99743 transitions. [2022-01-10 23:45:54,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 23:45:54,425 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:54,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:54,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 23:45:54,426 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 23:45:54,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:54,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1665236790, now seen corresponding path program 1 times [2022-01-10 23:45:54,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:54,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496327986] [2022-01-10 23:45:54,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:54,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:54,479 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 23:45:54,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:54,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496327986] [2022-01-10 23:45:54,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496327986] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:54,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:54,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:54,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295090150] [2022-01-10 23:45:54,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:54,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:54,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:54,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:54,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:54,480 INFO L87 Difference]: Start difference. First operand 55720 states and 99743 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:56,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:56,232 INFO L93 Difference]: Finished difference Result 120226 states and 217262 transitions. [2022-01-10 23:45:56,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:56,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-01-10 23:45:56,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:56,459 INFO L225 Difference]: With dead ends: 120226 [2022-01-10 23:45:56,459 INFO L226 Difference]: Without dead ends: 76193 [2022-01-10 23:45:56,484 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 23:45:56,484 INFO L933 BasicCegarLoop]: 7003 mSDtfsCounter, 2981 mSDsluCounter, 3564 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2981 SdHoareTripleChecker+Valid, 10567 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:56,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2981 Valid, 10567 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 23:45:56,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76193 states. [2022-01-10 23:45:57,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76193 to 55720. [2022-01-10 23:45:57,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55720 states, 55715 states have (on average 1.7844925065063268) internal successors, (99423), 55719 states have internal predecessors, (99423), 0 states have call successors, (0), 0 states 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 23:45:57,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55720 states to 55720 states and 99423 transitions. [2022-01-10 23:45:57,855 INFO L78 Accepts]: Start accepts. Automaton has 55720 states and 99423 transitions. Word has length 122 [2022-01-10 23:45:57,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:57,855 INFO L470 AbstractCegarLoop]: Abstraction has 55720 states and 99423 transitions. [2022-01-10 23:45:57,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:57,855 INFO L276 IsEmpty]: Start isEmpty. Operand 55720 states and 99423 transitions. [2022-01-10 23:45:57,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 23:45:57,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:57,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:57,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 23:45:57,868 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:57,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:57,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1138954863, now seen corresponding path program 1 times [2022-01-10 23:45:57,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:57,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998824998] [2022-01-10 23:45:57,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:57,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:57,940 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 23:45:57,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:57,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998824998] [2022-01-10 23:45:57,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998824998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:57,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:57,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:45:57,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835787519] [2022-01-10 23:45:57,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:57,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:45:57,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:57,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:45:57,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:45:57,941 INFO L87 Difference]: Start difference. First operand 55720 states and 99423 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:59,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:59,429 INFO L93 Difference]: Finished difference Result 111390 states and 198786 transitions. [2022-01-10 23:45:59,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:45:59,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-01-10 23:45:59,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:59,610 INFO L225 Difference]: With dead ends: 111390 [2022-01-10 23:45:59,610 INFO L226 Difference]: Without dead ends: 55693 [2022-01-10 23:45:59,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:45:59,644 INFO L933 BasicCegarLoop]: 4531 mSDtfsCounter, 9041 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9041 SdHoareTripleChecker+Valid, 4571 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:59,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9041 Valid, 4571 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55693 states. [2022-01-10 23:46:00,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55693 to 55693. [2022-01-10 23:46:00,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55693 states, 55688 states have (on average 1.784711248383853) internal successors, (99387), 55692 states have internal predecessors, (99387), 0 states have call successors, (0), 0 states 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 23:46:01,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55693 states to 55693 states and 99387 transitions. [2022-01-10 23:46:01,020 INFO L78 Accepts]: Start accepts. Automaton has 55693 states and 99387 transitions. Word has length 122 [2022-01-10 23:46:01,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:01,021 INFO L470 AbstractCegarLoop]: Abstraction has 55693 states and 99387 transitions. [2022-01-10 23:46:01,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:01,021 INFO L276 IsEmpty]: Start isEmpty. Operand 55693 states and 99387 transitions. [2022-01-10 23:46:01,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 23:46:01,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:01,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:01,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 23:46:01,034 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:01,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:01,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1604024323, now seen corresponding path program 1 times [2022-01-10 23:46:01,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:01,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161783823] [2022-01-10 23:46:01,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:01,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:01,182 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 23:46:01,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:01,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161783823] [2022-01-10 23:46:01,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161783823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:01,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:01,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:46:01,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781077967] [2022-01-10 23:46:01,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:01,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:46:01,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:01,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:46:01,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:46:01,183 INFO L87 Difference]: Start difference. First operand 55693 states and 99387 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:02,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:02,689 INFO L93 Difference]: Finished difference Result 111357 states and 198739 transitions. [2022-01-10 23:46:02,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:46:02,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2022-01-10 23:46:02,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:02,802 INFO L225 Difference]: With dead ends: 111357 [2022-01-10 23:46:02,802 INFO L226 Difference]: Without dead ends: 55693 [2022-01-10 23:46:02,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:46:02,841 INFO L933 BasicCegarLoop]: 4522 mSDtfsCounter, 9028 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9028 SdHoareTripleChecker+Valid, 4572 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:02,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9028 Valid, 4572 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:02,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55693 states. [2022-01-10 23:46:04,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55693 to 55693. [2022-01-10 23:46:04,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55693 states, 55688 states have (on average 1.784693291193794) internal successors, (99386), 55692 states have internal predecessors, (99386), 0 states have call successors, (0), 0 states 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 23:46:04,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55693 states to 55693 states and 99386 transitions. [2022-01-10 23:46:04,541 INFO L78 Accepts]: Start accepts. Automaton has 55693 states and 99386 transitions. Word has length 125 [2022-01-10 23:46:04,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:04,541 INFO L470 AbstractCegarLoop]: Abstraction has 55693 states and 99386 transitions. [2022-01-10 23:46:04,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:04,541 INFO L276 IsEmpty]: Start isEmpty. Operand 55693 states and 99386 transitions. [2022-01-10 23:46:04,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-10 23:46:04,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:04,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:04,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 23:46:04,553 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:04,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:04,554 INFO L85 PathProgramCache]: Analyzing trace with hash -39345956, now seen corresponding path program 1 times [2022-01-10 23:46:04,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:04,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636091673] [2022-01-10 23:46:04,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:04,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:04,602 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 23:46:04,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:04,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636091673] [2022-01-10 23:46:04,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636091673] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:04,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:04,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:04,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080767426] [2022-01-10 23:46:04,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:04,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:46:04,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:04,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:46:04,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:46:04,603 INFO L87 Difference]: Start difference. First operand 55693 states and 99386 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:07,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:07,461 INFO L93 Difference]: Finished difference Result 160768 states and 286117 transitions. [2022-01-10 23:46:07,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:46:07,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2022-01-10 23:46:07,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:07,659 INFO L225 Difference]: With dead ends: 160768 [2022-01-10 23:46:07,659 INFO L226 Difference]: Without dead ends: 105112 [2022-01-10 23:46:07,699 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 23:46:07,700 INFO L933 BasicCegarLoop]: 4557 mSDtfsCounter, 12059 mSDsluCounter, 3818 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12059 SdHoareTripleChecker+Valid, 8375 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:07,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12059 Valid, 8375 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 23:46:07,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105112 states. [2022-01-10 23:46:09,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105112 to 55693. [2022-01-10 23:46:09,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55693 states, 55688 states have (on average 1.7658023272518317) internal successors, (98334), 55692 states have internal predecessors, (98334), 0 states have call successors, (0), 0 states 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 23:46:09,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55693 states to 55693 states and 98334 transitions. [2022-01-10 23:46:09,720 INFO L78 Accepts]: Start accepts. Automaton has 55693 states and 98334 transitions. Word has length 126 [2022-01-10 23:46:09,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:09,723 INFO L470 AbstractCegarLoop]: Abstraction has 55693 states and 98334 transitions. [2022-01-10 23:46:09,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:09,723 INFO L276 IsEmpty]: Start isEmpty. Operand 55693 states and 98334 transitions. [2022-01-10 23:46:09,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-10 23:46:09,758 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:09,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:46:09,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 23:46:09,758 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:09,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:09,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1368017332, now seen corresponding path program 1 times [2022-01-10 23:46:09,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:09,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898665785] [2022-01-10 23:46:09,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:09,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:09,818 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 23:46:09,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:09,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898665785] [2022-01-10 23:46:09,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898665785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:09,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:09,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:46:09,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887856635] [2022-01-10 23:46:09,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:09,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:46:09,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:09,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:46:09,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:46:09,820 INFO L87 Difference]: Start difference. First operand 55693 states and 98334 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:25,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:25,035 INFO L93 Difference]: Finished difference Result 637974 states and 1123803 transitions. [2022-01-10 23:46:25,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-10 23:46:25,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-10 23:46:25,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:26,635 INFO L225 Difference]: With dead ends: 637974 [2022-01-10 23:46:26,635 INFO L226 Difference]: Without dead ends: 582336 [2022-01-10 23:46:27,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-01-10 23:46:27,175 INFO L933 BasicCegarLoop]: 10391 mSDtfsCounter, 35975 mSDsluCounter, 61810 mSDsCounter, 0 mSdLazyCounter, 1545 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35975 SdHoareTripleChecker+Valid, 72201 SdHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:27,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35975 Valid, 72201 Invalid, 1731 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [186 Valid, 1545 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 23:46:27,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582336 states.