/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 07:38:27,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 07:38:27,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 07:38:27,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 07:38:27,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 07:38:27,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 07:38:27,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 07:38:27,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 07:38:27,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 07:38:27,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 07:38:27,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 07:38:27,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 07:38:27,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 07:38:27,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 07:38:27,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 07:38:27,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 07:38:27,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 07:38:27,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 07:38:27,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 07:38:27,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 07:38:27,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 07:38:27,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 07:38:27,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 07:38:27,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 07:38:27,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 07:38:27,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 07:38:27,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 07:38:27,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 07:38:27,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 07:38:27,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 07:38:27,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 07:38:27,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 07:38:27,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 07:38:27,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 07:38:27,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 07:38:27,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 07:38:27,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 07:38:27,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 07:38:27,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 07:38:27,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 07:38:27,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 07:38:27,459 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 07:38:27,490 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 07:38:27,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 07:38:27,491 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 07:38:27,491 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 07:38:27,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 07:38:27,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 07:38:27,492 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 07:38:27,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 07:38:27,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 07:38:27,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 07:38:27,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 07:38:27,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 07:38:27,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 07:38:27,494 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 07:38:27,494 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 07:38:27,494 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 07:38:27,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 07:38:27,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 07:38:27,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 07:38:27,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 07:38:27,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 07:38:27,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:38:27,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 07:38:27,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 07:38:27,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 07:38:27,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 07:38:27,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 07:38:27,496 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 07:38:27,496 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 07:38:27,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 07:38:27,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 07:38:27,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 07:38:27,498 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 07:38:27,498 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 07:38:27,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 07:38:27,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 07:38:27,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 07:38:27,744 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 07:38:27,745 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 07:38:27,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-2.c [2022-01-11 07:38:27,798 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ec82e004/081313b286094665a846739f68821b54/FLAG73af72b52 [2022-01-11 07:38:28,168 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 07:38:28,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-2.c [2022-01-11 07:38:28,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ec82e004/081313b286094665a846739f68821b54/FLAG73af72b52 [2022-01-11 07:38:28,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ec82e004/081313b286094665a846739f68821b54 [2022-01-11 07:38:28,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 07:38:28,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 07:38:28,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 07:38:28,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 07:38:28,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 07:38:28,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:38:28" (1/1) ... [2022-01-11 07:38:28,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e5cd5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:38:28, skipping insertion in model container [2022-01-11 07:38:28,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:38:28" (1/1) ... [2022-01-11 07:38:28,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 07:38:28,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 07:38:28,436 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-2.c[913,926] [2022-01-11 07:38:28,493 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-2.c[5977,5990] [2022-01-11 07:38:28,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:38:28,614 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 07:38:28,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-2.c[913,926] [2022-01-11 07:38:28,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.08.cil-2.c[5977,5990] [2022-01-11 07:38:28,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:38:28,719 INFO L208 MainTranslator]: Completed translation [2022-01-11 07:38:28,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:38:28 WrapperNode [2022-01-11 07:38:28,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 07:38:28,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 07:38:28,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 07:38:28,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 07:38:28,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:38:28" (1/1) ... [2022-01-11 07:38:28,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:38:28" (1/1) ... [2022-01-11 07:38:28,834 INFO L137 Inliner]: procedures = 65, calls = 73, calls flagged for inlining = 68, calls inlined = 177, statements flattened = 2623 [2022-01-11 07:38:28,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 07:38:28,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 07:38:28,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 07:38:28,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 07:38:28,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:38:28" (1/1) ... [2022-01-11 07:38:28,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:38:28" (1/1) ... [2022-01-11 07:38:28,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:38:28" (1/1) ... [2022-01-11 07:38:28,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:38:28" (1/1) ... [2022-01-11 07:38:28,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:38:28" (1/1) ... [2022-01-11 07:38:28,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:38:28" (1/1) ... [2022-01-11 07:38:28,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:38:28" (1/1) ... [2022-01-11 07:38:28,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 07:38:28,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 07:38:28,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 07:38:28,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 07:38:28,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:38:28" (1/1) ... [2022-01-11 07:38:28,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:38:28,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:38:28,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 07:38:29,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 07:38:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 07:38:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 07:38:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 07:38:29,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 07:38:29,130 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 07:38:29,131 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 07:38:30,528 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 07:38:30,545 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 07:38:30,546 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2022-01-11 07:38:30,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:38:30 BoogieIcfgContainer [2022-01-11 07:38:30,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 07:38:30,549 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 07:38:30,550 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 07:38:30,551 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 07:38:30,554 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:38:30" (1/1) ... [2022-01-11 07:38:30,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:38:30 BasicIcfg [2022-01-11 07:38:30,932 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 07:38:30,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 07:38:30,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 07:38:30,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 07:38:30,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 07:38:28" (1/4) ... [2022-01-11 07:38:30,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36845f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:38:30, skipping insertion in model container [2022-01-11 07:38:30,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:38:28" (2/4) ... [2022-01-11 07:38:30,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36845f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:38:30, skipping insertion in model container [2022-01-11 07:38:30,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:38:30" (3/4) ... [2022-01-11 07:38:30,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36845f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 07:38:30, skipping insertion in model container [2022-01-11 07:38:30,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:38:30" (4/4) ... [2022-01-11 07:38:30,938 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.08.cil-2.cTransformedIcfg [2022-01-11 07:38:30,943 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 07:38:30,943 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-11 07:38:30,995 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 07:38:31,003 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 07:38:31,003 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-11 07:38:31,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 1087 states, 1082 states have (on average 1.521256931608133) internal successors, (1646), 1086 states have internal predecessors, (1646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:31,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-11 07:38:31,040 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:31,041 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] [2022-01-11 07:38:31,041 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:31,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:31,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1193236542, now seen corresponding path program 1 times [2022-01-11 07:38:31,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:31,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8598097] [2022-01-11 07:38:31,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:31,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:31,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:31,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:31,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8598097] [2022-01-11 07:38:31,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8598097] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:31,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:31,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:38:31,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911983701] [2022-01-11 07:38:31,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:31,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:31,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:31,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:31,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:31,401 INFO L87 Difference]: Start difference. First operand has 1087 states, 1082 states have (on average 1.521256931608133) internal successors, (1646), 1086 states have internal predecessors, (1646), 0 states have call successors, (0), 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 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:31,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:31,559 INFO L93 Difference]: Finished difference Result 2120 states and 3197 transitions. [2022-01-11 07:38:31,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:31,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-01-11 07:38:31,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:31,582 INFO L225 Difference]: With dead ends: 2120 [2022-01-11 07:38:31,582 INFO L226 Difference]: Without dead ends: 1141 [2022-01-11 07:38:31,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:31,593 INFO L933 BasicCegarLoop]: 1618 mSDtfsCounter, 1579 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:31,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1579 Valid, 1712 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:31,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2022-01-11 07:38:31,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1120. [2022-01-11 07:38:31,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1116 states have (on average 1.4874551971326164) internal successors, (1660), 1119 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:31,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1660 transitions. [2022-01-11 07:38:31,670 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1660 transitions. Word has length 36 [2022-01-11 07:38:31,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:31,671 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 1660 transitions. [2022-01-11 07:38:31,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:31,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1660 transitions. [2022-01-11 07:38:31,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-11 07:38:31,673 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:31,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:31,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 07:38:31,673 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:31,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:31,674 INFO L85 PathProgramCache]: Analyzing trace with hash 94209428, now seen corresponding path program 1 times [2022-01-11 07:38:31,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:31,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905658559] [2022-01-11 07:38:31,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:31,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:31,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:31,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:31,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905658559] [2022-01-11 07:38:31,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905658559] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:31,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:31,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:38:31,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690734032] [2022-01-11 07:38:31,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:31,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:31,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:31,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:31,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:31,779 INFO L87 Difference]: Start difference. First operand 1120 states and 1660 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:31,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:31,824 INFO L93 Difference]: Finished difference Result 1289 states and 1895 transitions. [2022-01-11 07:38:31,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:31,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2022-01-11 07:38:31,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:31,830 INFO L225 Difference]: With dead ends: 1289 [2022-01-11 07:38:31,831 INFO L226 Difference]: Without dead ends: 1178 [2022-01-11 07:38:31,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:31,834 INFO L933 BasicCegarLoop]: 1598 mSDtfsCounter, 60 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3157 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 [2022-01-11 07:38:31,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 3157 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:31,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2022-01-11 07:38:31,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1173. [2022-01-11 07:38:31,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1169 states have (on average 1.4824636441402907) internal successors, (1733), 1172 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:31,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1733 transitions. [2022-01-11 07:38:31,871 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1733 transitions. Word has length 37 [2022-01-11 07:38:31,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:31,872 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 1733 transitions. [2022-01-11 07:38:31,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:31,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1733 transitions. [2022-01-11 07:38:31,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-11 07:38:31,875 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:31,875 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] [2022-01-11 07:38:31,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 07:38:31,875 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:31,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:31,876 INFO L85 PathProgramCache]: Analyzing trace with hash -60087405, now seen corresponding path program 1 times [2022-01-11 07:38:31,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:31,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688697819] [2022-01-11 07:38:31,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:31,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:31,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:31,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:31,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688697819] [2022-01-11 07:38:31,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688697819] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:31,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:31,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:38:31,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139757225] [2022-01-11 07:38:31,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:31,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:31,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:31,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:31,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:31,972 INFO L87 Difference]: Start difference. First operand 1173 states and 1733 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:32,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:32,022 INFO L93 Difference]: Finished difference Result 1490 states and 2169 transitions. [2022-01-11 07:38:32,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:32,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2022-01-11 07:38:32,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:32,027 INFO L225 Difference]: With dead ends: 1490 [2022-01-11 07:38:32,027 INFO L226 Difference]: Without dead ends: 1326 [2022-01-11 07:38:32,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:32,034 INFO L933 BasicCegarLoop]: 1621 mSDtfsCounter, 1570 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:32,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1570 Valid, 1709 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:32,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-01-11 07:38:32,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1304. [2022-01-11 07:38:32,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1300 states have (on average 1.4684615384615385) internal successors, (1909), 1303 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:32,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1909 transitions. [2022-01-11 07:38:32,070 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1909 transitions. Word has length 37 [2022-01-11 07:38:32,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:32,070 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 1909 transitions. [2022-01-11 07:38:32,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:32,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1909 transitions. [2022-01-11 07:38:32,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 07:38:32,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:32,075 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:32,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 07:38:32,076 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:32,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:32,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1894945925, now seen corresponding path program 1 times [2022-01-11 07:38:32,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:32,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235687278] [2022-01-11 07:38:32,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:32,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:32,154 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:32,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:32,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235687278] [2022-01-11 07:38:32,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235687278] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:32,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:32,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:38:32,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658775327] [2022-01-11 07:38:32,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:32,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:32,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:32,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:32,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:32,158 INFO L87 Difference]: Start difference. First operand 1304 states and 1909 transitions. 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) [2022-01-11 07:38:32,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:32,210 INFO L93 Difference]: Finished difference Result 1755 states and 2516 transitions. [2022-01-11 07:38:32,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:32,211 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 [2022-01-11 07:38:32,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:32,216 INFO L225 Difference]: With dead ends: 1755 [2022-01-11 07:38:32,216 INFO L226 Difference]: Without dead ends: 1460 [2022-01-11 07:38:32,219 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 [2022-01-11 07:38:32,224 INFO L933 BasicCegarLoop]: 1651 mSDtfsCounter, 48 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3237 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:32,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 3237 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:32,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2022-01-11 07:38:32,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1460. [2022-01-11 07:38:32,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1456 states have (on average 1.4402472527472527) internal successors, (2097), 1459 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:32,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 2097 transitions. [2022-01-11 07:38:32,297 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 2097 transitions. Word has length 51 [2022-01-11 07:38:32,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:32,298 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 2097 transitions. [2022-01-11 07:38:32,298 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) [2022-01-11 07:38:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 2097 transitions. [2022-01-11 07:38:32,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 07:38:32,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:32,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:32,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 07:38:32,300 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:32,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:32,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1526476654, now seen corresponding path program 1 times [2022-01-11 07:38:32,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:32,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015191670] [2022-01-11 07:38:32,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:32,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:32,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:32,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:32,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015191670] [2022-01-11 07:38:32,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015191670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:32,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:32,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:38:32,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272016111] [2022-01-11 07:38:32,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:32,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:32,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:32,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:32,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:32,368 INFO L87 Difference]: Start difference. First operand 1460 states and 2097 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:32,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:32,442 INFO L93 Difference]: Finished difference Result 1933 states and 2713 transitions. [2022-01-11 07:38:32,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:32,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-11 07:38:32,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:32,449 INFO L225 Difference]: With dead ends: 1933 [2022-01-11 07:38:32,449 INFO L226 Difference]: Without dead ends: 1568 [2022-01-11 07:38:32,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:32,450 INFO L933 BasicCegarLoop]: 1598 mSDtfsCounter, 1544 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:32,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1544 Valid, 1686 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:32,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2022-01-11 07:38:32,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1568. [2022-01-11 07:38:32,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1564 states have (on average 1.4226342710997442) internal successors, (2225), 1567 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:32,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2225 transitions. [2022-01-11 07:38:32,493 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2225 transitions. Word has length 55 [2022-01-11 07:38:32,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:32,497 INFO L470 AbstractCegarLoop]: Abstraction has 1568 states and 2225 transitions. [2022-01-11 07:38:32,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:32,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2225 transitions. [2022-01-11 07:38:32,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 07:38:32,503 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:32,503 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:32,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 07:38:32,504 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:32,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:32,504 INFO L85 PathProgramCache]: Analyzing trace with hash 309054656, now seen corresponding path program 1 times [2022-01-11 07:38:32,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:32,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684204289] [2022-01-11 07:38:32,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:32,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:32,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:32,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:32,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684204289] [2022-01-11 07:38:32,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684204289] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:32,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:32,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:38:32,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893295154] [2022-01-11 07:38:32,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:32,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:38:32,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:32,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:38:32,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:38:32,610 INFO L87 Difference]: Start difference. First operand 1568 states and 2225 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:32,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:32,751 INFO L93 Difference]: Finished difference Result 2651 states and 3629 transitions. [2022-01-11 07:38:32,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:38:32,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-11 07:38:32,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:32,759 INFO L225 Difference]: With dead ends: 2651 [2022-01-11 07:38:32,759 INFO L226 Difference]: Without dead ends: 2228 [2022-01-11 07:38:32,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:38:32,761 INFO L933 BasicCegarLoop]: 1671 mSDtfsCounter, 302 mSDsluCounter, 4931 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 6602 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:32,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 6602 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:32,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2022-01-11 07:38:32,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1592. [2022-01-11 07:38:32,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 1588 states have (on average 1.413727959697733) internal successors, (2245), 1591 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:32,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 2245 transitions. [2022-01-11 07:38:32,829 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 2245 transitions. Word has length 56 [2022-01-11 07:38:32,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:32,830 INFO L470 AbstractCegarLoop]: Abstraction has 1592 states and 2245 transitions. [2022-01-11 07:38:32,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:32,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 2245 transitions. [2022-01-11 07:38:32,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 07:38:32,832 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:32,832 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:32,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 07:38:32,833 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:32,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:32,833 INFO L85 PathProgramCache]: Analyzing trace with hash 659854593, now seen corresponding path program 1 times [2022-01-11 07:38:32,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:32,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963665257] [2022-01-11 07:38:32,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:32,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:32,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:32,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:32,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963665257] [2022-01-11 07:38:32,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963665257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:32,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:32,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:38:32,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240102747] [2022-01-11 07:38:32,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:32,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:38:32,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:32,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:38:32,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:38:32,915 INFO L87 Difference]: Start difference. First operand 1592 states and 2245 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:33,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:33,088 INFO L93 Difference]: Finished difference Result 2381 states and 3255 transitions. [2022-01-11 07:38:33,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:38:33,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-11 07:38:33,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:33,095 INFO L225 Difference]: With dead ends: 2381 [2022-01-11 07:38:33,095 INFO L226 Difference]: Without dead ends: 1883 [2022-01-11 07:38:33,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:38:33,100 INFO L933 BasicCegarLoop]: 1648 mSDtfsCounter, 276 mSDsluCounter, 4900 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 6548 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:33,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 6548 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:33,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2022-01-11 07:38:33,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1490. [2022-01-11 07:38:33,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1486 states have (on average 1.4226110363391655) internal successors, (2114), 1489 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:33,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2114 transitions. [2022-01-11 07:38:33,174 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2114 transitions. Word has length 56 [2022-01-11 07:38:33,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:33,175 INFO L470 AbstractCegarLoop]: Abstraction has 1490 states and 2114 transitions. [2022-01-11 07:38:33,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:33,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2114 transitions. [2022-01-11 07:38:33,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 07:38:33,176 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:33,176 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:33,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 07:38:33,177 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:33,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:33,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1417324959, now seen corresponding path program 1 times [2022-01-11 07:38:33,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:33,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179072589] [2022-01-11 07:38:33,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:33,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:33,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:33,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:33,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179072589] [2022-01-11 07:38:33,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179072589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:33,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:33,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 07:38:33,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968118068] [2022-01-11 07:38:33,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:33,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 07:38:33,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:33,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 07:38:33,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 07:38:33,284 INFO L87 Difference]: Start difference. First operand 1490 states and 2114 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:33,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:33,412 INFO L93 Difference]: Finished difference Result 1540 states and 2174 transitions. [2022-01-11 07:38:33,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 07:38:33,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-11 07:38:33,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:33,418 INFO L225 Difference]: With dead ends: 1540 [2022-01-11 07:38:33,418 INFO L226 Difference]: Without dead ends: 1538 [2022-01-11 07:38:33,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:38:33,419 INFO L933 BasicCegarLoop]: 1598 mSDtfsCounter, 3164 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3164 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:33,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3164 Valid, 1667 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:33,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2022-01-11 07:38:33,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 1488. [2022-01-11 07:38:33,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1485 states have (on average 1.4215488215488215) internal successors, (2111), 1487 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:33,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2111 transitions. [2022-01-11 07:38:33,510 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2111 transitions. Word has length 56 [2022-01-11 07:38:33,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:33,510 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 2111 transitions. [2022-01-11 07:38:33,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:33,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2111 transitions. [2022-01-11 07:38:33,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-11 07:38:33,512 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:33,512 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:33,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 07:38:33,512 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:33,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:33,513 INFO L85 PathProgramCache]: Analyzing trace with hash -987397522, now seen corresponding path program 1 times [2022-01-11 07:38:33,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:33,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993408455] [2022-01-11 07:38:33,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:33,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:33,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:33,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:33,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993408455] [2022-01-11 07:38:33,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993408455] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 07:38:33,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945119194] [2022-01-11 07:38:33,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:33,715 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 07:38:33,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:38:33,717 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 07:38:33,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 07:38:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:33,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-11 07:38:33,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 07:38:34,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:34,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 07:38:34,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:34,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945119194] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 07:38:34,504 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 07:38:34,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-11 07:38:34,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403136062] [2022-01-11 07:38:34,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 07:38:34,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-11 07:38:34,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:34,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-11 07:38:34,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-11 07:38:34,507 INFO L87 Difference]: Start difference. First operand 1488 states and 2111 transitions. Second operand has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:34,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:34,816 INFO L93 Difference]: Finished difference Result 2374 states and 3239 transitions. [2022-01-11 07:38:34,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 07:38:34,816 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-01-11 07:38:34,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:34,825 INFO L225 Difference]: With dead ends: 2374 [2022-01-11 07:38:34,826 INFO L226 Difference]: Without dead ends: 2372 [2022-01-11 07:38:34,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-11 07:38:34,828 INFO L933 BasicCegarLoop]: 1673 mSDtfsCounter, 4963 mSDsluCounter, 5235 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4963 SdHoareTripleChecker+Valid, 6908 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:34,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4963 Valid, 6908 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:34,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2372 states. [2022-01-11 07:38:34,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2372 to 1760. [2022-01-11 07:38:34,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1757 states have (on average 1.402390438247012) internal successors, (2464), 1759 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:35,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2464 transitions. [2022-01-11 07:38:35,010 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2464 transitions. Word has length 57 [2022-01-11 07:38:35,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:35,010 INFO L470 AbstractCegarLoop]: Abstraction has 1760 states and 2464 transitions. [2022-01-11 07:38:35,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:35,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2464 transitions. [2022-01-11 07:38:35,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-11 07:38:35,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:35,012 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:35,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-11 07:38:35,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 07:38:35,240 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:35,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:35,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1845469173, now seen corresponding path program 2 times [2022-01-11 07:38:35,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:35,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540483768] [2022-01-11 07:38:35,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:35,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:35,286 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:35,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:35,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540483768] [2022-01-11 07:38:35,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540483768] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:35,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:35,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:38:35,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137650752] [2022-01-11 07:38:35,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:35,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:35,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:35,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:35,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:35,288 INFO L87 Difference]: Start difference. First operand 1760 states and 2464 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:35,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:35,407 INFO L93 Difference]: Finished difference Result 2267 states and 3124 transitions. [2022-01-11 07:38:35,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:35,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-01-11 07:38:35,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:35,413 INFO L225 Difference]: With dead ends: 2267 [2022-01-11 07:38:35,414 INFO L226 Difference]: Without dead ends: 1671 [2022-01-11 07:38:35,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:35,415 INFO L933 BasicCegarLoop]: 1632 mSDtfsCounter, 1548 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:35,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1548 Valid, 1701 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:35,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2022-01-11 07:38:35,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1645. [2022-01-11 07:38:35,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1642 states have (on average 1.4080389768574908) internal successors, (2312), 1644 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:35,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2312 transitions. [2022-01-11 07:38:35,521 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2312 transitions. Word has length 72 [2022-01-11 07:38:35,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:35,521 INFO L470 AbstractCegarLoop]: Abstraction has 1645 states and 2312 transitions. [2022-01-11 07:38:35,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:35,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2312 transitions. [2022-01-11 07:38:35,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-11 07:38:35,523 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:35,523 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:35,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 07:38:35,524 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:35,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:35,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1394381388, now seen corresponding path program 1 times [2022-01-11 07:38:35,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:35,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636245231] [2022-01-11 07:38:35,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:35,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:35,562 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 07:38:35,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:35,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636245231] [2022-01-11 07:38:35,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636245231] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:35,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:35,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:38:35,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494803697] [2022-01-11 07:38:35,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:35,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:35,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:35,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:35,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:35,564 INFO L87 Difference]: Start difference. First operand 1645 states and 2312 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:35,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:35,721 INFO L93 Difference]: Finished difference Result 2299 states and 3139 transitions. [2022-01-11 07:38:35,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:35,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-01-11 07:38:35,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:35,728 INFO L225 Difference]: With dead ends: 2299 [2022-01-11 07:38:35,728 INFO L226 Difference]: Without dead ends: 1663 [2022-01-11 07:38:35,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:35,730 INFO L933 BasicCegarLoop]: 1605 mSDtfsCounter, 1533 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:35,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1533 Valid, 1689 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:35,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2022-01-11 07:38:35,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1645. [2022-01-11 07:38:35,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1642 states have (on average 1.3958587088915957) internal successors, (2292), 1644 states have internal predecessors, (2292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:35,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2292 transitions. [2022-01-11 07:38:35,842 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2292 transitions. Word has length 84 [2022-01-11 07:38:35,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:35,842 INFO L470 AbstractCegarLoop]: Abstraction has 1645 states and 2292 transitions. [2022-01-11 07:38:35,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:35,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2292 transitions. [2022-01-11 07:38:35,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-11 07:38:35,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:35,844 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:35,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 07:38:35,844 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:35,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:35,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1247561300, now seen corresponding path program 1 times [2022-01-11 07:38:35,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:35,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368102515] [2022-01-11 07:38:35,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:35,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:35,893 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 07:38:35,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:35,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368102515] [2022-01-11 07:38:35,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368102515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:35,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:35,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:38:35,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189111456] [2022-01-11 07:38:35,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:35,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:35,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:35,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:35,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:35,895 INFO L87 Difference]: Start difference. First operand 1645 states and 2292 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:35,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:35,986 INFO L93 Difference]: Finished difference Result 1909 states and 2610 transitions. [2022-01-11 07:38:35,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:35,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-01-11 07:38:35,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:35,991 INFO L225 Difference]: With dead ends: 1909 [2022-01-11 07:38:35,991 INFO L226 Difference]: Without dead ends: 1003 [2022-01-11 07:38:35,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:35,993 INFO L933 BasicCegarLoop]: 1631 mSDtfsCounter, 56 mSDsluCounter, 1563 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3194 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:35,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 3194 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:35,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2022-01-11 07:38:36,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2022-01-11 07:38:36,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 1001 states have (on average 1.4945054945054945) internal successors, (1496), 1002 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:36,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1496 transitions. [2022-01-11 07:38:36,037 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1496 transitions. Word has length 85 [2022-01-11 07:38:36,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:36,037 INFO L470 AbstractCegarLoop]: Abstraction has 1003 states and 1496 transitions. [2022-01-11 07:38:36,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:36,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1496 transitions. [2022-01-11 07:38:36,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:36,038 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:36,038 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] [2022-01-11 07:38:36,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 07:38:36,039 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:36,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:36,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1539609402, now seen corresponding path program 1 times [2022-01-11 07:38:36,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:36,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946858052] [2022-01-11 07:38:36,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:36,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:36,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:36,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:36,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946858052] [2022-01-11 07:38:36,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946858052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:36,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:36,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:38:36,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532099472] [2022-01-11 07:38:36,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:36,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:36,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:36,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:36,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:36,082 INFO L87 Difference]: Start difference. First operand 1003 states and 1496 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:36,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:36,145 INFO L93 Difference]: Finished difference Result 1997 states and 2979 transitions. [2022-01-11 07:38:36,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:36,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:36,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:36,149 INFO L225 Difference]: With dead ends: 1997 [2022-01-11 07:38:36,149 INFO L226 Difference]: Without dead ends: 1003 [2022-01-11 07:38:36,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:36,151 INFO L933 BasicCegarLoop]: 1494 mSDtfsCounter, 1487 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:36,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1487 Valid, 1495 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:36,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2022-01-11 07:38:36,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2022-01-11 07:38:36,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 1001 states have (on average 1.4935064935064934) internal successors, (1495), 1002 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:36,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1495 transitions. [2022-01-11 07:38:36,196 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1495 transitions. Word has length 121 [2022-01-11 07:38:36,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:36,196 INFO L470 AbstractCegarLoop]: Abstraction has 1003 states and 1495 transitions. [2022-01-11 07:38:36,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:36,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1495 transitions. [2022-01-11 07:38:36,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:36,199 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:36,200 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] [2022-01-11 07:38:36,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 07:38:36,200 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:36,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:36,201 INFO L85 PathProgramCache]: Analyzing trace with hash -255698235, now seen corresponding path program 1 times [2022-01-11 07:38:36,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:36,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905435430] [2022-01-11 07:38:36,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:36,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:36,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:36,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:36,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905435430] [2022-01-11 07:38:36,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905435430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:36,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:36,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:36,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256933480] [2022-01-11 07:38:36,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:36,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:36,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:36,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:36,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:36,253 INFO L87 Difference]: Start difference. First operand 1003 states and 1495 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:36,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:36,351 INFO L93 Difference]: Finished difference Result 2812 states and 4180 transitions. [2022-01-11 07:38:36,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:36,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:36,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:36,358 INFO L225 Difference]: With dead ends: 2812 [2022-01-11 07:38:36,358 INFO L226 Difference]: Without dead ends: 1825 [2022-01-11 07:38:36,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:36,360 INFO L933 BasicCegarLoop]: 1489 mSDtfsCounter, 1382 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:36,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1382 Valid, 2790 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:36,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2022-01-11 07:38:36,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1821. [2022-01-11 07:38:36,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.48653106102254) internal successors, (2704), 1820 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:36,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2704 transitions. [2022-01-11 07:38:36,445 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2704 transitions. Word has length 121 [2022-01-11 07:38:36,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:36,445 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2704 transitions. [2022-01-11 07:38:36,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:36,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2704 transitions. [2022-01-11 07:38:36,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:36,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:36,446 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] [2022-01-11 07:38:36,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 07:38:36,446 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:36,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:36,447 INFO L85 PathProgramCache]: Analyzing trace with hash -603532315, now seen corresponding path program 1 times [2022-01-11 07:38:36,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:36,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425290593] [2022-01-11 07:38:36,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:36,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:36,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:36,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:36,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425290593] [2022-01-11 07:38:36,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425290593] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:36,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:36,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:36,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169170302] [2022-01-11 07:38:36,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:36,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:36,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:36,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:36,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:36,490 INFO L87 Difference]: Start difference. First operand 1821 states and 2704 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:36,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:36,585 INFO L93 Difference]: Finished difference Result 3625 states and 5382 transitions. [2022-01-11 07:38:36,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:36,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:36,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:36,592 INFO L225 Difference]: With dead ends: 3625 [2022-01-11 07:38:36,592 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:36,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:36,596 INFO L933 BasicCegarLoop]: 1483 mSDtfsCounter, 1472 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 1483 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:36,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1472 Valid, 1483 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:36,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:36,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:36,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4821330401319406) internal successors, (2696), 1820 states have internal predecessors, (2696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:36,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2696 transitions. [2022-01-11 07:38:36,721 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2696 transitions. Word has length 121 [2022-01-11 07:38:36,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:36,721 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2696 transitions. [2022-01-11 07:38:36,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:36,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2696 transitions. [2022-01-11 07:38:36,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:36,723 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:36,723 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] [2022-01-11 07:38:36,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 07:38:36,723 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:36,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:36,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1740551877, now seen corresponding path program 1 times [2022-01-11 07:38:36,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:36,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797458503] [2022-01-11 07:38:36,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:36,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:36,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:36,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:36,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797458503] [2022-01-11 07:38:36,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797458503] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:36,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:36,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:36,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258493765] [2022-01-11 07:38:36,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:36,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:36,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:36,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:36,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:36,769 INFO L87 Difference]: Start difference. First operand 1821 states and 2696 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:36,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:36,869 INFO L93 Difference]: Finished difference Result 3624 states and 5365 transitions. [2022-01-11 07:38:36,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:36,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:36,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:36,890 INFO L225 Difference]: With dead ends: 3624 [2022-01-11 07:38:36,890 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:36,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:36,893 INFO L933 BasicCegarLoop]: 1478 mSDtfsCounter, 1466 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:36,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1466 Valid, 1478 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:36,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:36,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:36,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4777350192413414) internal successors, (2688), 1820 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:36,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2688 transitions. [2022-01-11 07:38:36,988 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2688 transitions. Word has length 121 [2022-01-11 07:38:36,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:36,988 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2688 transitions. [2022-01-11 07:38:36,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:36,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2688 transitions. [2022-01-11 07:38:36,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:36,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:36,989 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] [2022-01-11 07:38:36,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 07:38:36,989 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:36,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:36,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1508968475, now seen corresponding path program 1 times [2022-01-11 07:38:36,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:36,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347524325] [2022-01-11 07:38:36,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:36,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:37,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:37,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:37,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347524325] [2022-01-11 07:38:37,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347524325] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:37,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:37,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:37,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497629827] [2022-01-11 07:38:37,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:37,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:37,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:37,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:37,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:37,034 INFO L87 Difference]: Start difference. First operand 1821 states and 2688 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:37,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:37,146 INFO L93 Difference]: Finished difference Result 3622 states and 5346 transitions. [2022-01-11 07:38:37,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:37,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:37,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:37,151 INFO L225 Difference]: With dead ends: 3622 [2022-01-11 07:38:37,151 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:37,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:37,153 INFO L933 BasicCegarLoop]: 1473 mSDtfsCounter, 1459 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:37,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1459 Valid, 1473 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:37,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:37,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:37,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.473336998350742) internal successors, (2680), 1820 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:37,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2680 transitions. [2022-01-11 07:38:37,254 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2680 transitions. Word has length 121 [2022-01-11 07:38:37,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:37,255 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2680 transitions. [2022-01-11 07:38:37,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:37,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2680 transitions. [2022-01-11 07:38:37,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:37,256 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:37,256 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] [2022-01-11 07:38:37,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 07:38:37,256 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:37,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:37,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1749221115, now seen corresponding path program 1 times [2022-01-11 07:38:37,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:37,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408979026] [2022-01-11 07:38:37,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:37,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:37,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:37,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:37,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408979026] [2022-01-11 07:38:37,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408979026] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:37,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:37,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:37,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121476820] [2022-01-11 07:38:37,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:37,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:37,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:37,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:37,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:37,302 INFO L87 Difference]: Start difference. First operand 1821 states and 2680 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:37,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:37,399 INFO L93 Difference]: Finished difference Result 3621 states and 5329 transitions. [2022-01-11 07:38:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:37,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:37,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:37,403 INFO L225 Difference]: With dead ends: 3621 [2022-01-11 07:38:37,403 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:37,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:37,405 INFO L933 BasicCegarLoop]: 1468 mSDtfsCounter, 1453 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:37,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1453 Valid, 1468 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:37,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:37,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:37,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.468938977460143) internal successors, (2672), 1820 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:37,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2672 transitions. [2022-01-11 07:38:37,521 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2672 transitions. Word has length 121 [2022-01-11 07:38:37,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:37,521 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2672 transitions. [2022-01-11 07:38:37,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:37,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2672 transitions. [2022-01-11 07:38:37,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:37,522 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:37,522 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] [2022-01-11 07:38:37,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 07:38:37,522 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:37,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:37,523 INFO L85 PathProgramCache]: Analyzing trace with hash -510045211, now seen corresponding path program 1 times [2022-01-11 07:38:37,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:37,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826989436] [2022-01-11 07:38:37,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:37,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:37,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:37,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:37,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826989436] [2022-01-11 07:38:37,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826989436] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:37,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:37,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:37,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987323580] [2022-01-11 07:38:37,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:37,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:37,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:37,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:37,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:37,568 INFO L87 Difference]: Start difference. First operand 1821 states and 2672 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:37,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:37,682 INFO L93 Difference]: Finished difference Result 3620 states and 5312 transitions. [2022-01-11 07:38:37,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:37,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:37,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:37,686 INFO L225 Difference]: With dead ends: 3620 [2022-01-11 07:38:37,686 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:37,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:37,689 INFO L933 BasicCegarLoop]: 1463 mSDtfsCounter, 1447 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:37,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1447 Valid, 1463 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:37,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:37,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:37,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4645409565695438) internal successors, (2664), 1820 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:37,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2664 transitions. [2022-01-11 07:38:37,783 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2664 transitions. Word has length 121 [2022-01-11 07:38:37,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:37,783 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2664 transitions. [2022-01-11 07:38:37,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:37,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2664 transitions. [2022-01-11 07:38:37,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:37,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:37,784 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] [2022-01-11 07:38:37,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 07:38:37,784 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:37,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:37,785 INFO L85 PathProgramCache]: Analyzing trace with hash -747166459, now seen corresponding path program 1 times [2022-01-11 07:38:37,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:37,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605840489] [2022-01-11 07:38:37,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:37,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:37,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:37,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:37,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605840489] [2022-01-11 07:38:37,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605840489] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:37,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:37,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:37,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327581464] [2022-01-11 07:38:37,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:37,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:37,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:37,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:37,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:37,828 INFO L87 Difference]: Start difference. First operand 1821 states and 2664 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:37,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:37,954 INFO L93 Difference]: Finished difference Result 3619 states and 5295 transitions. [2022-01-11 07:38:37,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:37,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:37,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:37,958 INFO L225 Difference]: With dead ends: 3619 [2022-01-11 07:38:37,958 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:37,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:37,962 INFO L933 BasicCegarLoop]: 1458 mSDtfsCounter, 1441 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:37,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1441 Valid, 1458 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:37,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:38,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:38,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4601429356789444) internal successors, (2656), 1820 states have internal predecessors, (2656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:38,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2656 transitions. [2022-01-11 07:38:38,074 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2656 transitions. Word has length 121 [2022-01-11 07:38:38,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:38,075 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2656 transitions. [2022-01-11 07:38:38,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:38,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2656 transitions. [2022-01-11 07:38:38,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:38,076 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:38,076 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] [2022-01-11 07:38:38,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 07:38:38,076 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:38,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:38,077 INFO L85 PathProgramCache]: Analyzing trace with hash -200626203, now seen corresponding path program 1 times [2022-01-11 07:38:38,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:38,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242637646] [2022-01-11 07:38:38,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:38,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:38,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:38,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:38,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242637646] [2022-01-11 07:38:38,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242637646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:38,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:38,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:38,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200615140] [2022-01-11 07:38:38,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:38,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:38,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:38,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:38,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:38,121 INFO L87 Difference]: Start difference. First operand 1821 states and 2656 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:38,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:38,238 INFO L93 Difference]: Finished difference Result 3618 states and 5278 transitions. [2022-01-11 07:38:38,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:38,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:38,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:38,242 INFO L225 Difference]: With dead ends: 3618 [2022-01-11 07:38:38,242 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:38,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:38,245 INFO L933 BasicCegarLoop]: 1453 mSDtfsCounter, 1435 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:38,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1435 Valid, 1453 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:38,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:38,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:38,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4557449147883452) internal successors, (2648), 1820 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:38,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2648 transitions. [2022-01-11 07:38:38,354 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2648 transitions. Word has length 121 [2022-01-11 07:38:38,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:38,354 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2648 transitions. [2022-01-11 07:38:38,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:38,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2648 transitions. [2022-01-11 07:38:38,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:38,355 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:38,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:38,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 07:38:38,356 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:38,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:38,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1063930117, now seen corresponding path program 1 times [2022-01-11 07:38:38,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:38,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560325749] [2022-01-11 07:38:38,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:38,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:38,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:38,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:38,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560325749] [2022-01-11 07:38:38,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560325749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:38,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:38,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:38,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690695721] [2022-01-11 07:38:38,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:38,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:38,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:38,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:38,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:38,414 INFO L87 Difference]: Start difference. First operand 1821 states and 2648 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:38,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:38,556 INFO L93 Difference]: Finished difference Result 3617 states and 5261 transitions. [2022-01-11 07:38:38,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:38,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:38,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:38,560 INFO L225 Difference]: With dead ends: 3617 [2022-01-11 07:38:38,560 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:38,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:38,564 INFO L933 BasicCegarLoop]: 1426 mSDtfsCounter, 1326 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:38,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1326 Valid, 1514 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:38,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:38,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:38,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.440351841671248) internal successors, (2620), 1820 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:38,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2620 transitions. [2022-01-11 07:38:38,667 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2620 transitions. Word has length 121 [2022-01-11 07:38:38,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:38,667 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2620 transitions. [2022-01-11 07:38:38,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:38,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2620 transitions. [2022-01-11 07:38:38,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:38,668 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:38,668 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] [2022-01-11 07:38:38,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 07:38:38,669 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:38,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:38,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1693229668, now seen corresponding path program 1 times [2022-01-11 07:38:38,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:38,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811335748] [2022-01-11 07:38:38,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:38,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:38,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:38,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:38,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811335748] [2022-01-11 07:38:38,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811335748] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:38,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:38,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:38,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208629274] [2022-01-11 07:38:38,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:38,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:38,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:38,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:38,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:38,707 INFO L87 Difference]: Start difference. First operand 1821 states and 2620 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:38,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:38,875 INFO L93 Difference]: Finished difference Result 3616 states and 5204 transitions. [2022-01-11 07:38:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:38,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:38,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:38,879 INFO L225 Difference]: With dead ends: 3616 [2022-01-11 07:38:38,879 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:38,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:38,881 INFO L933 BasicCegarLoop]: 1410 mSDtfsCounter, 1310 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:38,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1310 Valid, 1497 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:38,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:38,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:38,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4249587685541507) internal successors, (2592), 1820 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:38,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2592 transitions. [2022-01-11 07:38:38,994 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2592 transitions. Word has length 121 [2022-01-11 07:38:38,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:38,995 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2592 transitions. [2022-01-11 07:38:38,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:38,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2592 transitions. [2022-01-11 07:38:38,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:38,996 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:38,996 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] [2022-01-11 07:38:38,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 07:38:38,996 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:38,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:38,997 INFO L85 PathProgramCache]: Analyzing trace with hash 738207043, now seen corresponding path program 1 times [2022-01-11 07:38:38,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:38,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592926863] [2022-01-11 07:38:38,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:38,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:39,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:39,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:39,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592926863] [2022-01-11 07:38:39,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592926863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:39,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:39,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:39,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316636969] [2022-01-11 07:38:39,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:39,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:39,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:39,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:39,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:39,046 INFO L87 Difference]: Start difference. First operand 1821 states and 2592 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:39,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:39,189 INFO L93 Difference]: Finished difference Result 3615 states and 5147 transitions. [2022-01-11 07:38:39,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:39,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:39,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:39,192 INFO L225 Difference]: With dead ends: 3615 [2022-01-11 07:38:39,193 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:39,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:39,199 INFO L933 BasicCegarLoop]: 1394 mSDtfsCounter, 1294 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:39,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1294 Valid, 1480 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:39,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:39,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:39,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.4095656954370532) internal successors, (2564), 1820 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:39,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2564 transitions. [2022-01-11 07:38:39,342 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2564 transitions. Word has length 121 [2022-01-11 07:38:39,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:39,342 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2564 transitions. [2022-01-11 07:38:39,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:39,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2564 transitions. [2022-01-11 07:38:39,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:39,343 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:39,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:39,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 07:38:39,344 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:39,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:39,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1130118434, now seen corresponding path program 1 times [2022-01-11 07:38:39,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:39,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449031833] [2022-01-11 07:38:39,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:39,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:39,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:39,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:39,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449031833] [2022-01-11 07:38:39,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449031833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:39,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:39,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:39,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910306681] [2022-01-11 07:38:39,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:39,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:39,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:39,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:39,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:39,391 INFO L87 Difference]: Start difference. First operand 1821 states and 2564 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:39,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:39,559 INFO L93 Difference]: Finished difference Result 3614 states and 5090 transitions. [2022-01-11 07:38:39,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:39,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:39,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:39,564 INFO L225 Difference]: With dead ends: 3614 [2022-01-11 07:38:39,564 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:39,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:39,568 INFO L933 BasicCegarLoop]: 1378 mSDtfsCounter, 1278 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:39,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1278 Valid, 1463 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:39,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:39,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:39,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.394172622319956) internal successors, (2536), 1820 states have internal predecessors, (2536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:39,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2536 transitions. [2022-01-11 07:38:39,687 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2536 transitions. Word has length 121 [2022-01-11 07:38:39,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:39,687 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2536 transitions. [2022-01-11 07:38:39,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:39,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2536 transitions. [2022-01-11 07:38:39,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:39,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:39,689 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] [2022-01-11 07:38:39,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 07:38:39,689 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:39,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:39,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1239608961, now seen corresponding path program 1 times [2022-01-11 07:38:39,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:39,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997834123] [2022-01-11 07:38:39,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:39,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:39,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:39,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:39,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997834123] [2022-01-11 07:38:39,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997834123] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:39,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:39,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:39,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506688967] [2022-01-11 07:38:39,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:39,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:39,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:39,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:39,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:39,731 INFO L87 Difference]: Start difference. First operand 1821 states and 2536 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:39,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:39,895 INFO L93 Difference]: Finished difference Result 3613 states and 5033 transitions. [2022-01-11 07:38:39,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:39,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:39,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:39,899 INFO L225 Difference]: With dead ends: 3613 [2022-01-11 07:38:39,899 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:39,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:39,901 INFO L933 BasicCegarLoop]: 1362 mSDtfsCounter, 1262 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:39,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1262 Valid, 1446 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:39,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:40,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:40,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.3787795492028587) internal successors, (2508), 1820 states have internal predecessors, (2508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:40,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2508 transitions. [2022-01-11 07:38:40,012 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2508 transitions. Word has length 121 [2022-01-11 07:38:40,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:40,012 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2508 transitions. [2022-01-11 07:38:40,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:40,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2508 transitions. [2022-01-11 07:38:40,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:40,014 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:40,014 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] [2022-01-11 07:38:40,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 07:38:40,014 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:40,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:40,015 INFO L85 PathProgramCache]: Analyzing trace with hash 859604192, now seen corresponding path program 1 times [2022-01-11 07:38:40,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:40,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504099609] [2022-01-11 07:38:40,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:40,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:40,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:40,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:40,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504099609] [2022-01-11 07:38:40,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504099609] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:40,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:40,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:40,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437746620] [2022-01-11 07:38:40,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:40,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:40,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:40,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:40,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:40,067 INFO L87 Difference]: Start difference. First operand 1821 states and 2508 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:40,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:40,214 INFO L93 Difference]: Finished difference Result 3612 states and 4976 transitions. [2022-01-11 07:38:40,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:40,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:40,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:40,218 INFO L225 Difference]: With dead ends: 3612 [2022-01-11 07:38:40,218 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:40,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:40,220 INFO L933 BasicCegarLoop]: 1346 mSDtfsCounter, 1246 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:40,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1246 Valid, 1429 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:40,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:40,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:40,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.3633864760857615) internal successors, (2480), 1820 states have internal predecessors, (2480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:40,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2480 transitions. [2022-01-11 07:38:40,333 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2480 transitions. Word has length 121 [2022-01-11 07:38:40,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:40,334 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2480 transitions. [2022-01-11 07:38:40,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:40,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2480 transitions. [2022-01-11 07:38:40,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:40,335 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:40,335 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] [2022-01-11 07:38:40,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 07:38:40,335 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:40,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:40,336 INFO L85 PathProgramCache]: Analyzing trace with hash 672015551, now seen corresponding path program 1 times [2022-01-11 07:38:40,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:40,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646989427] [2022-01-11 07:38:40,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:40,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:40,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:40,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646989427] [2022-01-11 07:38:40,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646989427] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:40,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:40,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:40,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817413723] [2022-01-11 07:38:40,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:40,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:40,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:40,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:40,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:40,370 INFO L87 Difference]: Start difference. First operand 1821 states and 2480 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:40,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:40,524 INFO L93 Difference]: Finished difference Result 3611 states and 4919 transitions. [2022-01-11 07:38:40,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:40,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:40,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:40,528 INFO L225 Difference]: With dead ends: 3611 [2022-01-11 07:38:40,528 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:40,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:40,531 INFO L933 BasicCegarLoop]: 1330 mSDtfsCounter, 1230 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:40,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1230 Valid, 1412 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:40,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:40,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:40,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.3479934029686642) internal successors, (2452), 1820 states have internal predecessors, (2452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:40,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2452 transitions. [2022-01-11 07:38:40,645 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2452 transitions. Word has length 121 [2022-01-11 07:38:40,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:40,645 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2452 transitions. [2022-01-11 07:38:40,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:40,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2452 transitions. [2022-01-11 07:38:40,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:40,646 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:40,646 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] [2022-01-11 07:38:40,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 07:38:40,647 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:40,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:40,647 INFO L85 PathProgramCache]: Analyzing trace with hash -643237474, now seen corresponding path program 1 times [2022-01-11 07:38:40,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:40,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242957702] [2022-01-11 07:38:40,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:40,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:40,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:40,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:40,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242957702] [2022-01-11 07:38:40,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242957702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:40,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:40,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:40,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874120365] [2022-01-11 07:38:40,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:40,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:40,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:40,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:40,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:40,685 INFO L87 Difference]: Start difference. First operand 1821 states and 2452 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:40,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:40,853 INFO L93 Difference]: Finished difference Result 3610 states and 4862 transitions. [2022-01-11 07:38:40,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:40,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:40,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:40,857 INFO L225 Difference]: With dead ends: 3610 [2022-01-11 07:38:40,857 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:40,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:40,860 INFO L933 BasicCegarLoop]: 1314 mSDtfsCounter, 1214 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:40,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1214 Valid, 1395 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:40,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:40,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:40,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.3326003298515667) internal successors, (2424), 1820 states have internal predecessors, (2424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:40,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2424 transitions. [2022-01-11 07:38:40,996 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2424 transitions. Word has length 121 [2022-01-11 07:38:40,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:40,996 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2424 transitions. [2022-01-11 07:38:40,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:40,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2424 transitions. [2022-01-11 07:38:40,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:40,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:40,997 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] [2022-01-11 07:38:40,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 07:38:40,997 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:40,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:40,998 INFO L85 PathProgramCache]: Analyzing trace with hash -2101524483, now seen corresponding path program 1 times [2022-01-11 07:38:40,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:40,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467758645] [2022-01-11 07:38:40,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:40,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:41,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:41,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:41,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467758645] [2022-01-11 07:38:41,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467758645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:41,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:41,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:41,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814539090] [2022-01-11 07:38:41,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:41,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:41,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:41,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:41,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:41,032 INFO L87 Difference]: Start difference. First operand 1821 states and 2424 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:41,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:41,182 INFO L93 Difference]: Finished difference Result 3609 states and 4805 transitions. [2022-01-11 07:38:41,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:41,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:41,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:41,186 INFO L225 Difference]: With dead ends: 3609 [2022-01-11 07:38:41,186 INFO L226 Difference]: Without dead ends: 1821 [2022-01-11 07:38:41,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:41,188 INFO L933 BasicCegarLoop]: 1298 mSDtfsCounter, 1198 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:41,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1198 Valid, 1378 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:41,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-01-11 07:38:41,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-01-11 07:38:41,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1819 states have (on average 1.3172072567344695) internal successors, (2396), 1820 states have internal predecessors, (2396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:41,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2396 transitions. [2022-01-11 07:38:41,306 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2396 transitions. Word has length 121 [2022-01-11 07:38:41,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:41,306 INFO L470 AbstractCegarLoop]: Abstraction has 1821 states and 2396 transitions. [2022-01-11 07:38:41,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:41,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2396 transitions. [2022-01-11 07:38:41,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:41,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:41,308 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] [2022-01-11 07:38:41,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 07:38:41,308 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:41,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:41,308 INFO L85 PathProgramCache]: Analyzing trace with hash -654501028, now seen corresponding path program 1 times [2022-01-11 07:38:41,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:41,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468641459] [2022-01-11 07:38:41,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:41,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:41,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:41,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:41,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468641459] [2022-01-11 07:38:41,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468641459] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:41,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:41,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:38:41,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394356135] [2022-01-11 07:38:41,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:41,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:38:41,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:41,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:38:41,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:38:41,374 INFO L87 Difference]: Start difference. First operand 1821 states and 2396 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:41,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:41,738 INFO L93 Difference]: Finished difference Result 4292 states and 5707 transitions. [2022-01-11 07:38:41,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:38:41,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:41,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:41,744 INFO L225 Difference]: With dead ends: 4292 [2022-01-11 07:38:41,744 INFO L226 Difference]: Without dead ends: 2511 [2022-01-11 07:38:41,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:38:41,747 INFO L933 BasicCegarLoop]: 1418 mSDtfsCounter, 3717 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3717 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:41,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3717 Valid, 2839 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:38:41,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2022-01-11 07:38:41,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 1827. [2022-01-11 07:38:41,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1827 states, 1825 states have (on average 1.305205479452055) internal successors, (2382), 1826 states have internal predecessors, (2382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:41,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 2382 transitions. [2022-01-11 07:38:41,910 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 2382 transitions. Word has length 121 [2022-01-11 07:38:41,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:41,910 INFO L470 AbstractCegarLoop]: Abstraction has 1827 states and 2382 transitions. [2022-01-11 07:38:41,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:41,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 2382 transitions. [2022-01-11 07:38:41,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:41,911 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:41,911 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:41,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-11 07:38:41,911 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:41,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:41,912 INFO L85 PathProgramCache]: Analyzing trace with hash -2139556579, now seen corresponding path program 1 times [2022-01-11 07:38:41,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:41,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733075383] [2022-01-11 07:38:41,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:41,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:41,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:41,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:41,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733075383] [2022-01-11 07:38:41,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733075383] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:41,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:41,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:38:41,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352394240] [2022-01-11 07:38:41,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:41,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:38:41,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:41,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:38:41,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:38:41,956 INFO L87 Difference]: Start difference. First operand 1827 states and 2382 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:42,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:42,324 INFO L93 Difference]: Finished difference Result 4520 states and 5942 transitions. [2022-01-11 07:38:42,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:38:42,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:42,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:42,329 INFO L225 Difference]: With dead ends: 4520 [2022-01-11 07:38:42,330 INFO L226 Difference]: Without dead ends: 2747 [2022-01-11 07:38:42,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:38:42,332 INFO L933 BasicCegarLoop]: 1371 mSDtfsCounter, 3443 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3443 SdHoareTripleChecker+Valid, 3309 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:42,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3443 Valid, 3309 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:38:42,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states. [2022-01-11 07:38:42,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 1833. [2022-01-11 07:38:42,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1833 states, 1831 states have (on average 1.2932823593664664) internal successors, (2368), 1832 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:42,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2368 transitions. [2022-01-11 07:38:42,511 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2368 transitions. Word has length 121 [2022-01-11 07:38:42,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:42,511 INFO L470 AbstractCegarLoop]: Abstraction has 1833 states and 2368 transitions. [2022-01-11 07:38:42,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2368 transitions. [2022-01-11 07:38:42,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:42,512 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:42,512 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] [2022-01-11 07:38:42,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-11 07:38:42,512 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:42,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:42,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1671735390, now seen corresponding path program 1 times [2022-01-11 07:38:42,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:42,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511707165] [2022-01-11 07:38:42,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:42,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:42,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:42,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:42,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511707165] [2022-01-11 07:38:42,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511707165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:42,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:42,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:38:42,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341316629] [2022-01-11 07:38:42,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:42,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:38:42,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:42,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:38:42,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:38:42,562 INFO L87 Difference]: Start difference. First operand 1833 states and 2368 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:42,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:42,938 INFO L93 Difference]: Finished difference Result 4643 states and 6040 transitions. [2022-01-11 07:38:42,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:38:42,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:42,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:42,944 INFO L225 Difference]: With dead ends: 4643 [2022-01-11 07:38:42,944 INFO L226 Difference]: Without dead ends: 2871 [2022-01-11 07:38:42,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:38:42,946 INFO L933 BasicCegarLoop]: 1342 mSDtfsCounter, 3296 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3296 SdHoareTripleChecker+Valid, 3513 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:42,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3296 Valid, 3513 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:38:42,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2022-01-11 07:38:43,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 1839. [2022-01-11 07:38:43,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1837 states have (on average 1.281437125748503) internal successors, (2354), 1838 states have internal predecessors, (2354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:43,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2354 transitions. [2022-01-11 07:38:43,080 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2354 transitions. Word has length 121 [2022-01-11 07:38:43,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:43,081 INFO L470 AbstractCegarLoop]: Abstraction has 1839 states and 2354 transitions. [2022-01-11 07:38:43,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:43,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2354 transitions. [2022-01-11 07:38:43,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:43,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:43,082 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] [2022-01-11 07:38:43,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-11 07:38:43,082 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:43,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:43,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1318838177, now seen corresponding path program 1 times [2022-01-11 07:38:43,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:43,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965113342] [2022-01-11 07:38:43,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:43,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:43,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:43,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:43,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965113342] [2022-01-11 07:38:43,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965113342] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:43,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:43,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:43,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251664979] [2022-01-11 07:38:43,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:43,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:43,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:43,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:43,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:43,129 INFO L87 Difference]: Start difference. First operand 1839 states and 2354 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:43,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:43,329 INFO L93 Difference]: Finished difference Result 3659 states and 4680 transitions. [2022-01-11 07:38:43,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:43,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:43,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:43,334 INFO L225 Difference]: With dead ends: 3659 [2022-01-11 07:38:43,334 INFO L226 Difference]: Without dead ends: 1839 [2022-01-11 07:38:43,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:43,337 INFO L933 BasicCegarLoop]: 1271 mSDtfsCounter, 1185 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:43,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1185 Valid, 1271 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:43,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2022-01-11 07:38:43,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1839. [2022-01-11 07:38:43,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1837 states have (on average 1.2770821992378878) internal successors, (2346), 1838 states have internal predecessors, (2346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:43,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2346 transitions. [2022-01-11 07:38:43,545 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2346 transitions. Word has length 121 [2022-01-11 07:38:43,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:43,546 INFO L470 AbstractCegarLoop]: Abstraction has 1839 states and 2346 transitions. [2022-01-11 07:38:43,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:43,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2346 transitions. [2022-01-11 07:38:43,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:38:43,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:43,547 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] [2022-01-11 07:38:43,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-11 07:38:43,547 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:43,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:43,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1307522050, now seen corresponding path program 1 times [2022-01-11 07:38:43,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:43,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661846470] [2022-01-11 07:38:43,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:43,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:43,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:43,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:43,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661846470] [2022-01-11 07:38:43,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661846470] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:43,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:43,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:38:43,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352653252] [2022-01-11 07:38:43,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:43,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:43,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:43,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:43,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:43,596 INFO L87 Difference]: Start difference. First operand 1839 states and 2346 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:43,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:43,999 INFO L93 Difference]: Finished difference Result 5318 states and 6791 transitions. [2022-01-11 07:38:43,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:43,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 07:38:44,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:44,006 INFO L225 Difference]: With dead ends: 5318 [2022-01-11 07:38:44,006 INFO L226 Difference]: Without dead ends: 3514 [2022-01-11 07:38:44,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:44,010 INFO L933 BasicCegarLoop]: 1261 mSDtfsCounter, 1114 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 2371 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:44,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1114 Valid, 2371 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:44,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3514 states. [2022-01-11 07:38:44,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3514 to 3390. [2022-01-11 07:38:44,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3390 states, 3388 states have (on average 1.2724321133412042) internal successors, (4311), 3389 states have internal predecessors, (4311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:44,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 4311 transitions. [2022-01-11 07:38:44,378 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 4311 transitions. Word has length 121 [2022-01-11 07:38:44,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:44,379 INFO L470 AbstractCegarLoop]: Abstraction has 3390 states and 4311 transitions. [2022-01-11 07:38:44,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:44,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 4311 transitions. [2022-01-11 07:38:44,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:38:44,380 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:44,381 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:44,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-11 07:38:44,381 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:44,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:44,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1265246177, now seen corresponding path program 1 times [2022-01-11 07:38:44,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:44,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757843750] [2022-01-11 07:38:44,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:44,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:44,434 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:44,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:44,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757843750] [2022-01-11 07:38:44,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757843750] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:44,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:44,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:38:44,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76027581] [2022-01-11 07:38:44,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:44,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:44,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:44,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:44,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:44,437 INFO L87 Difference]: Start difference. First operand 3390 states and 4311 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:45,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:45,035 INFO L93 Difference]: Finished difference Result 9935 states and 12659 transitions. [2022-01-11 07:38:45,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:45,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2022-01-11 07:38:45,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:45,048 INFO L225 Difference]: With dead ends: 9935 [2022-01-11 07:38:45,048 INFO L226 Difference]: Without dead ends: 6586 [2022-01-11 07:38:45,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:45,056 INFO L933 BasicCegarLoop]: 1258 mSDtfsCounter, 1149 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 2368 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:45,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1149 Valid, 2368 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:45,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6586 states. [2022-01-11 07:38:45,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6586 to 6342. [2022-01-11 07:38:45,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6342 states, 6340 states have (on average 1.2705047318611988) internal successors, (8055), 6341 states have internal predecessors, (8055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:45,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6342 states to 6342 states and 8055 transitions. [2022-01-11 07:38:45,650 INFO L78 Accepts]: Start accepts. Automaton has 6342 states and 8055 transitions. Word has length 196 [2022-01-11 07:38:45,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:45,651 INFO L470 AbstractCegarLoop]: Abstraction has 6342 states and 8055 transitions. [2022-01-11 07:38:45,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:45,651 INFO L276 IsEmpty]: Start isEmpty. Operand 6342 states and 8055 transitions. [2022-01-11 07:38:45,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:38:45,655 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:45,655 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:45,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-11 07:38:45,655 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:45,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:45,656 INFO L85 PathProgramCache]: Analyzing trace with hash -803643456, now seen corresponding path program 1 times [2022-01-11 07:38:45,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:45,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966720265] [2022-01-11 07:38:45,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:45,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:45,721 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:45,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:45,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966720265] [2022-01-11 07:38:45,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966720265] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:45,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:45,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:38:45,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924108848] [2022-01-11 07:38:45,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:45,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:45,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:45,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:45,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:45,724 INFO L87 Difference]: Start difference. First operand 6342 states and 8055 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:46,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:46,956 INFO L93 Difference]: Finished difference Result 18655 states and 23573 transitions. [2022-01-11 07:38:46,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:46,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2022-01-11 07:38:46,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:46,969 INFO L225 Difference]: With dead ends: 18655 [2022-01-11 07:38:46,970 INFO L226 Difference]: Without dead ends: 12427 [2022-01-11 07:38:46,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:46,975 INFO L933 BasicCegarLoop]: 1494 mSDtfsCounter, 1143 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:46,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 2734 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:46,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12427 states. [2022-01-11 07:38:48,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12427 to 12199. [2022-01-11 07:38:48,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12199 states, 12197 states have (on average 1.2576043289333443) internal successors, (15339), 12198 states have internal predecessors, (15339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:48,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12199 states to 12199 states and 15339 transitions. [2022-01-11 07:38:48,046 INFO L78 Accepts]: Start accepts. Automaton has 12199 states and 15339 transitions. Word has length 196 [2022-01-11 07:38:48,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:48,047 INFO L470 AbstractCegarLoop]: Abstraction has 12199 states and 15339 transitions. [2022-01-11 07:38:48,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:48,047 INFO L276 IsEmpty]: Start isEmpty. Operand 12199 states and 15339 transitions. [2022-01-11 07:38:48,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:38:48,055 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:48,055 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:48,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-11 07:38:48,055 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:48,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:48,056 INFO L85 PathProgramCache]: Analyzing trace with hash 741238654, now seen corresponding path program 1 times [2022-01-11 07:38:48,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:48,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340422535] [2022-01-11 07:38:48,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:48,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:48,090 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:38:48,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:48,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340422535] [2022-01-11 07:38:48,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340422535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:48,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:48,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:38:48,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840733701] [2022-01-11 07:38:48,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:48,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:48,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:48,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:48,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:48,092 INFO L87 Difference]: Start difference. First operand 12199 states and 15339 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:49,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:49,035 INFO L93 Difference]: Finished difference Result 24246 states and 30498 transitions. [2022-01-11 07:38:49,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:49,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 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 196 [2022-01-11 07:38:49,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:49,048 INFO L225 Difference]: With dead ends: 24246 [2022-01-11 07:38:49,049 INFO L226 Difference]: Without dead ends: 12092 [2022-01-11 07:38:49,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:49,059 INFO L933 BasicCegarLoop]: 1270 mSDtfsCounter, 1265 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:49,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1265 Valid, 1271 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:49,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12092 states. [2022-01-11 07:38:50,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12092 to 12092. [2022-01-11 07:38:50,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12092 states, 12090 states have (on average 1.2582299421009098) internal successors, (15212), 12091 states have internal predecessors, (15212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:50,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12092 states to 12092 states and 15212 transitions. [2022-01-11 07:38:50,250 INFO L78 Accepts]: Start accepts. Automaton has 12092 states and 15212 transitions. Word has length 196 [2022-01-11 07:38:50,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:50,250 INFO L470 AbstractCegarLoop]: Abstraction has 12092 states and 15212 transitions. [2022-01-11 07:38:50,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:50,251 INFO L276 IsEmpty]: Start isEmpty. Operand 12092 states and 15212 transitions. [2022-01-11 07:38:50,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-11 07:38:50,257 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:50,257 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:50,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-11 07:38:50,258 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:50,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:50,258 INFO L85 PathProgramCache]: Analyzing trace with hash 2051901421, now seen corresponding path program 1 times [2022-01-11 07:38:50,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:50,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182440988] [2022-01-11 07:38:50,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:50,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:50,319 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:50,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:50,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182440988] [2022-01-11 07:38:50,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182440988] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:50,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:50,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:38:50,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801614456] [2022-01-11 07:38:50,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:50,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:50,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:50,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:50,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:50,321 INFO L87 Difference]: Start difference. First operand 12092 states and 15212 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:52,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:52,029 INFO L93 Difference]: Finished difference Result 34842 states and 43732 transitions. [2022-01-11 07:38:52,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:52,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 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 197 [2022-01-11 07:38:52,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:52,055 INFO L225 Difference]: With dead ends: 34842 [2022-01-11 07:38:52,055 INFO L226 Difference]: Without dead ends: 22864 [2022-01-11 07:38:52,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:52,067 INFO L933 BasicCegarLoop]: 1885 mSDtfsCounter, 964 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:52,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [964 Valid, 3134 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:52,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22864 states. [2022-01-11 07:38:53,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22864 to 22860. [2022-01-11 07:38:53,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22860 states, 22858 states have (on average 1.2517280601977425) internal successors, (28612), 22859 states have internal predecessors, (28612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:54,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22860 states to 22860 states and 28612 transitions. [2022-01-11 07:38:54,033 INFO L78 Accepts]: Start accepts. Automaton has 22860 states and 28612 transitions. Word has length 197 [2022-01-11 07:38:54,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:54,033 INFO L470 AbstractCegarLoop]: Abstraction has 22860 states and 28612 transitions. [2022-01-11 07:38:54,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:54,033 INFO L276 IsEmpty]: Start isEmpty. Operand 22860 states and 28612 transitions. [2022-01-11 07:38:54,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-11 07:38:54,044 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:54,044 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:54,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-11 07:38:54,045 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:54,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:54,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1815283596, now seen corresponding path program 1 times [2022-01-11 07:38:54,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:54,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049145646] [2022-01-11 07:38:54,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:54,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:54,084 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:38:54,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:54,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049145646] [2022-01-11 07:38:54,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049145646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:54,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:54,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:38:54,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531854079] [2022-01-11 07:38:54,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:54,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:54,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:54,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:54,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:54,087 INFO L87 Difference]: Start difference. First operand 22860 states and 28612 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:56,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:38:56,010 INFO L93 Difference]: Finished difference Result 45500 states and 56966 transitions. [2022-01-11 07:38:56,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:38:56,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 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 197 [2022-01-11 07:38:56,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:38:56,046 INFO L225 Difference]: With dead ends: 45500 [2022-01-11 07:38:56,046 INFO L226 Difference]: Without dead ends: 22754 [2022-01-11 07:38:56,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:56,070 INFO L933 BasicCegarLoop]: 1269 mSDtfsCounter, 1263 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:38:56,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1263 Valid, 1270 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:38:56,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22754 states. [2022-01-11 07:38:57,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22754 to 22754. [2022-01-11 07:38:57,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22754 states, 22752 states have (on average 1.2520657524613221) internal successors, (28487), 22753 states have internal predecessors, (28487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:58,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22754 states to 22754 states and 28487 transitions. [2022-01-11 07:38:58,022 INFO L78 Accepts]: Start accepts. Automaton has 22754 states and 28487 transitions. Word has length 197 [2022-01-11 07:38:58,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:38:58,022 INFO L470 AbstractCegarLoop]: Abstraction has 22754 states and 28487 transitions. [2022-01-11 07:38:58,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:38:58,022 INFO L276 IsEmpty]: Start isEmpty. Operand 22754 states and 28487 transitions. [2022-01-11 07:38:58,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-11 07:38:58,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:38:58,029 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:38:58,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-11 07:38:58,029 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:38:58,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:38:58,030 INFO L85 PathProgramCache]: Analyzing trace with hash 2088773645, now seen corresponding path program 1 times [2022-01-11 07:38:58,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:38:58,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443412478] [2022-01-11 07:38:58,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:38:58,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:38:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:38:58,095 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:38:58,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:38:58,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443412478] [2022-01-11 07:38:58,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443412478] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:38:58,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:38:58,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:38:58,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172090513] [2022-01-11 07:38:58,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:38:58,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:38:58,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:38:58,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:38:58,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:38:58,098 INFO L87 Difference]: Start difference. First operand 22754 states and 28487 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:39:01,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:39:01,681 INFO L93 Difference]: Finished difference Result 65674 states and 82139 transitions. [2022-01-11 07:39:01,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:39:01,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 198 [2022-01-11 07:39:01,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:39:01,738 INFO L225 Difference]: With dead ends: 65674 [2022-01-11 07:39:01,739 INFO L226 Difference]: Without dead ends: 43034 [2022-01-11 07:39:01,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:39:01,773 INFO L933 BasicCegarLoop]: 1266 mSDtfsCounter, 973 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 2391 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:39:01,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [973 Valid, 2391 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:39:01,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43034 states. [2022-01-11 07:39:05,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43034 to 43030. [2022-01-11 07:39:05,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43030 states, 43028 states have (on average 1.2486520405317467) internal successors, (53727), 43029 states have internal predecessors, (53727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:39:05,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43030 states to 43030 states and 53727 transitions. [2022-01-11 07:39:05,497 INFO L78 Accepts]: Start accepts. Automaton has 43030 states and 53727 transitions. Word has length 198 [2022-01-11 07:39:05,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:39:05,497 INFO L470 AbstractCegarLoop]: Abstraction has 43030 states and 53727 transitions. [2022-01-11 07:39:05,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:39:05,498 INFO L276 IsEmpty]: Start isEmpty. Operand 43030 states and 53727 transitions. [2022-01-11 07:39:05,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-01-11 07:39:05,512 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:39:05,512 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:39:05,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-11 07:39:05,512 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:39:05,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:39:05,513 INFO L85 PathProgramCache]: Analyzing trace with hash -2086811620, now seen corresponding path program 1 times [2022-01-11 07:39:05,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:39:05,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429145109] [2022-01-11 07:39:05,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:39:05,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:39:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:39:05,565 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:39:05,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:39:05,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429145109] [2022-01-11 07:39:05,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429145109] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:39:05,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:39:05,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:39:05,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433674566] [2022-01-11 07:39:05,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:39:05,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:39:05,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:39:05,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:39:05,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:39:05,567 INFO L87 Difference]: Start difference. First operand 43030 states and 53727 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:39:12,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:39:12,247 INFO L93 Difference]: Finished difference Result 126438 states and 157836 transitions. [2022-01-11 07:39:12,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:39:12,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 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 199 [2022-01-11 07:39:12,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:39:12,363 INFO L225 Difference]: With dead ends: 126438 [2022-01-11 07:39:12,363 INFO L226 Difference]: Without dead ends: 83522 [2022-01-11 07:39:12,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:39:12,394 INFO L933 BasicCegarLoop]: 1601 mSDtfsCounter, 1145 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:39:12,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1145 Valid, 2836 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:39:12,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83522 states. [2022-01-11 07:39:19,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83522 to 81470. [2022-01-11 07:39:19,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81470 states, 81468 states have (on average 1.24623164923651) internal successors, (101528), 81469 states have internal predecessors, (101528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:39:19,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81470 states to 81470 states and 101528 transitions. [2022-01-11 07:39:19,354 INFO L78 Accepts]: Start accepts. Automaton has 81470 states and 101528 transitions. Word has length 199 [2022-01-11 07:39:19,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:39:19,354 INFO L470 AbstractCegarLoop]: Abstraction has 81470 states and 101528 transitions. [2022-01-11 07:39:19,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:39:19,354 INFO L276 IsEmpty]: Start isEmpty. Operand 81470 states and 101528 transitions. [2022-01-11 07:39:19,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-01-11 07:39:19,380 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:39:19,381 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:39:19,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-11 07:39:19,381 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:39:19,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:39:19,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1155414915, now seen corresponding path program 1 times [2022-01-11 07:39:19,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:39:19,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046906116] [2022-01-11 07:39:19,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:39:19,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:39:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:39:19,428 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:39:19,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:39:19,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046906116] [2022-01-11 07:39:19,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046906116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:39:19,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:39:19,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:39:19,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463146434] [2022-01-11 07:39:19,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:39:19,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:39:19,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:39:19,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:39:19,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:39:19,430 INFO L87 Difference]: Start difference. First operand 81470 states and 101528 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:39:26,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:39:26,564 INFO L93 Difference]: Finished difference Result 162770 states and 202858 transitions. [2022-01-11 07:39:26,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:39:26,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 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 199 [2022-01-11 07:39:26,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:39:26,682 INFO L225 Difference]: With dead ends: 162770 [2022-01-11 07:39:26,682 INFO L226 Difference]: Without dead ends: 81366 [2022-01-11 07:39:26,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:39:26,740 INFO L933 BasicCegarLoop]: 1268 mSDtfsCounter, 1260 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:39:26,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1260 Valid, 1269 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:39:26,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81366 states.