/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/Problem05_label44+token_ring.11.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 07:07:16,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 07:07:16,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 07:07:16,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 07:07:16,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 07:07:16,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 07:07:16,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 07:07:16,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 07:07:16,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 07:07:16,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 07:07:16,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 07:07:16,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 07:07:16,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 07:07:16,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 07:07:16,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 07:07:16,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 07:07:16,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 07:07:16,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 07:07:16,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 07:07:16,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 07:07:16,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 07:07:16,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 07:07:16,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 07:07:16,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 07:07:16,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 07:07:16,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 07:07:16,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 07:07:16,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 07:07:16,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 07:07:16,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 07:07:16,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 07:07:16,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 07:07:16,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 07:07:16,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 07:07:16,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 07:07:16,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 07:07:16,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 07:07:16,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 07:07:16,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 07:07:16,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 07:07:16,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 07:07:16,093 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 07:07:16,161 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 07:07:16,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 07:07:16,161 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 07:07:16,161 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 07:07:16,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 07:07:16,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 07:07:16,167 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 07:07:16,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 07:07:16,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 07:07:16,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 07:07:16,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 07:07:16,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 07:07:16,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 07:07:16,169 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 07:07:16,169 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 07:07:16,169 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 07:07:16,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 07:07:16,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 07:07:16,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 07:07:16,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 07:07:16,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 07:07:16,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:07:16,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 07:07:16,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 07:07:16,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 07:07:16,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 07:07:16,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 07:07:16,172 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 07:07:16,172 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 07:07:16,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 07:07:16,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 07:07:16,173 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 07:07:16,174 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 07:07:16,175 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 07:07:16,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 07:07:16,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 07:07:16,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 07:07:16,412 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 07:07:16,412 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 07:07:16,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label44+token_ring.11.cil-2.c [2022-01-11 07:07:16,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe7f93844/26562ed987824d8bb7ec74bb301d9c44/FLAG5252ea1c5 [2022-01-11 07:07:17,361 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 07:07:17,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label44+token_ring.11.cil-2.c [2022-01-11 07:07:17,416 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe7f93844/26562ed987824d8bb7ec74bb301d9c44/FLAG5252ea1c5 [2022-01-11 07:07:17,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe7f93844/26562ed987824d8bb7ec74bb301d9c44 [2022-01-11 07:07:17,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 07:07:17,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 07:07:17,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 07:07:17,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 07:07:17,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 07:07:17,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:07:17" (1/1) ... [2022-01-11 07:07:17,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@82dc16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:17, skipping insertion in model container [2022-01-11 07:07:17,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:07:17" (1/1) ... [2022-01-11 07:07:17,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 07:07:18,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 07:07:19,553 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/Problem05_label44+token_ring.11.cil-2.c[377340,377353] [2022-01-11 07:07:19,576 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/Problem05_label44+token_ring.11.cil-2.c[383339,383352] [2022-01-11 07:07:19,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:07:19,828 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 07:07:20,545 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/Problem05_label44+token_ring.11.cil-2.c[377340,377353] [2022-01-11 07:07:20,552 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/Problem05_label44+token_ring.11.cil-2.c[383339,383352] [2022-01-11 07:07:20,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:07:20,624 INFO L208 MainTranslator]: Completed translation [2022-01-11 07:07:20,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:20 WrapperNode [2022-01-11 07:07:20,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 07:07:20,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 07:07:20,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 07:07:20,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 07:07:20,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:20" (1/1) ... [2022-01-11 07:07:20,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:20" (1/1) ... [2022-01-11 07:07:21,181 INFO L137 Inliner]: procedures = 67, calls = 74, calls flagged for inlining = 69, calls inlined = 248, statements flattened = 15980 [2022-01-11 07:07:21,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 07:07:21,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 07:07:21,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 07:07:21,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 07:07:21,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:20" (1/1) ... [2022-01-11 07:07:21,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:20" (1/1) ... [2022-01-11 07:07:21,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:20" (1/1) ... [2022-01-11 07:07:21,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:20" (1/1) ... [2022-01-11 07:07:21,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:20" (1/1) ... [2022-01-11 07:07:21,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:20" (1/1) ... [2022-01-11 07:07:21,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:20" (1/1) ... [2022-01-11 07:07:21,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 07:07:21,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 07:07:21,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 07:07:21,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 07:07:21,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:20" (1/1) ... [2022-01-11 07:07:21,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:07:21,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:07:21,965 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 07:07:21,967 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 07:07:21,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 07:07:21,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 07:07:21,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 07:07:21,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 07:07:22,190 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 07:07:22,192 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 07:07:31,423 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 07:07:31,467 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 07:07:31,467 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2022-01-11 07:07:31,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:07:31 BoogieIcfgContainer [2022-01-11 07:07:31,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 07:07:31,473 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 07:07:31,474 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 07:07:31,475 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 07:07:31,477 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:07:31" (1/1) ... [2022-01-11 07:07:33,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:07:33 BasicIcfg [2022-01-11 07:07:33,198 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 07:07:33,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 07:07:33,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 07:07:33,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 07:07:33,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 07:07:17" (1/4) ... [2022-01-11 07:07:33,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b583711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:07:33, skipping insertion in model container [2022-01-11 07:07:33,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:07:20" (2/4) ... [2022-01-11 07:07:33,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b583711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:07:33, skipping insertion in model container [2022-01-11 07:07:33,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:07:31" (3/4) ... [2022-01-11 07:07:33,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b583711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 07:07:33, skipping insertion in model container [2022-01-11 07:07:33,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:07:33" (4/4) ... [2022-01-11 07:07:33,206 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.11.cil-2.cTransformedIcfg [2022-01-11 07:07:33,210 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 07:07:33,211 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-11 07:07:33,274 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 07:07:33,280 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 07:07:33,280 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-11 07:07:33,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 3756 states, 3753 states have (on average 1.7172928324007461) internal successors, (6445), 3755 states have internal predecessors, (6445), 0 states have call successors, (0), 0 states 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 07:07:33,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:33,376 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:33,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:33,378 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:33,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:33,383 INFO L85 PathProgramCache]: Analyzing trace with hash 452533607, now seen corresponding path program 1 times [2022-01-11 07:07:33,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:33,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44764867] [2022-01-11 07:07:33,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:33,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:33,796 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 07:07:33,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:33,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44764867] [2022-01-11 07:07:33,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44764867] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:33,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:33,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:33,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961313100] [2022-01-11 07:07:33,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:33,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:33,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:33,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:33,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:33,849 INFO L87 Difference]: Start difference. First operand has 3756 states, 3753 states have (on average 1.7172928324007461) internal successors, (6445), 3755 states have internal predecessors, (6445), 0 states have call successors, (0), 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 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:34,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:34,181 INFO L93 Difference]: Finished difference Result 8828 states and 14847 transitions. [2022-01-11 07:07:34,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:34,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:34,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:34,226 INFO L225 Difference]: With dead ends: 8828 [2022-01-11 07:07:34,226 INFO L226 Difference]: Without dead ends: 5020 [2022-01-11 07:07:34,242 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 07:07:34,246 INFO L933 BasicCegarLoop]: 6346 mSDtfsCounter, 6206 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6206 SdHoareTripleChecker+Valid, 8424 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 07:07:34,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6206 Valid, 8424 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:34,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5020 states. [2022-01-11 07:07:34,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5020 to 5018. [2022-01-11 07:07:34,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6421451355661882) internal successors, (8237), 5017 states have internal predecessors, (8237), 0 states have call successors, (0), 0 states 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 07:07:34,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8237 transitions. [2022-01-11 07:07:34,466 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8237 transitions. Word has length 154 [2022-01-11 07:07:34,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:34,644 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8237 transitions. [2022-01-11 07:07:34,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:34,645 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8237 transitions. [2022-01-11 07:07:34,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:34,646 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:34,646 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:34,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 07:07:34,647 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:34,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:34,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1886278023, now seen corresponding path program 1 times [2022-01-11 07:07:34,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:34,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041145879] [2022-01-11 07:07:34,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:34,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:34,810 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 07:07:34,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:34,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041145879] [2022-01-11 07:07:34,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041145879] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:34,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:34,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:34,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225967730] [2022-01-11 07:07:34,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:34,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:34,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:34,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:34,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:34,818 INFO L87 Difference]: Start difference. First operand 5018 states and 8237 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:34,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:34,952 INFO L93 Difference]: Finished difference Result 7896 states and 12484 transitions. [2022-01-11 07:07:34,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:34,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:34,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:34,975 INFO L225 Difference]: With dead ends: 7896 [2022-01-11 07:07:34,976 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:34,984 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 07:07:34,986 INFO L933 BasicCegarLoop]: 6273 mSDtfsCounter, 6259 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6259 SdHoareTripleChecker+Valid, 6273 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 07:07:34,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6259 Valid, 6273 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:34,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:35,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:35,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6405502392344498) internal successors, (8229), 5017 states have internal predecessors, (8229), 0 states have call successors, (0), 0 states 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 07:07:35,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8229 transitions. [2022-01-11 07:07:35,142 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8229 transitions. Word has length 154 [2022-01-11 07:07:35,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:35,143 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8229 transitions. [2022-01-11 07:07:35,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:35,144 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8229 transitions. [2022-01-11 07:07:35,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:35,146 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:35,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:35,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 07:07:35,146 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:35,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:35,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2071075175, now seen corresponding path program 1 times [2022-01-11 07:07:35,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:35,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516134182] [2022-01-11 07:07:35,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:35,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:35,222 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 07:07:35,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:35,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516134182] [2022-01-11 07:07:35,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516134182] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:35,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:35,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:35,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519769131] [2022-01-11 07:07:35,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:35,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:35,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:35,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:35,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:35,226 INFO L87 Difference]: Start difference. First operand 5018 states and 8229 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:35,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:35,352 INFO L93 Difference]: Finished difference Result 7894 states and 12465 transitions. [2022-01-11 07:07:35,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:35,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:35,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:35,375 INFO L225 Difference]: With dead ends: 7894 [2022-01-11 07:07:35,375 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:35,382 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 07:07:35,383 INFO L933 BasicCegarLoop]: 6268 mSDtfsCounter, 6252 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6252 SdHoareTripleChecker+Valid, 6268 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 07:07:35,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6252 Valid, 6268 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:35,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:35,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:35,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6389553429027113) internal successors, (8221), 5017 states have internal predecessors, (8221), 0 states have call successors, (0), 0 states 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 07:07:35,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8221 transitions. [2022-01-11 07:07:35,536 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8221 transitions. Word has length 154 [2022-01-11 07:07:35,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:35,537 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8221 transitions. [2022-01-11 07:07:35,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:35,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8221 transitions. [2022-01-11 07:07:35,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:35,539 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:35,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:35,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 07:07:35,540 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:35,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:35,540 INFO L85 PathProgramCache]: Analyzing trace with hash -91858617, now seen corresponding path program 1 times [2022-01-11 07:07:35,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:35,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862849118] [2022-01-11 07:07:35,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:35,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:35,600 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 07:07:35,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:35,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862849118] [2022-01-11 07:07:35,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862849118] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:35,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:35,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:35,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426253213] [2022-01-11 07:07:35,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:35,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:35,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:35,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:35,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:35,603 INFO L87 Difference]: Start difference. First operand 5018 states and 8221 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:35,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:35,856 INFO L93 Difference]: Finished difference Result 7893 states and 12448 transitions. [2022-01-11 07:07:35,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:35,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:35,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:35,874 INFO L225 Difference]: With dead ends: 7893 [2022-01-11 07:07:35,874 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:35,878 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 07:07:35,885 INFO L933 BasicCegarLoop]: 6263 mSDtfsCounter, 6246 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6246 SdHoareTripleChecker+Valid, 6263 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 07:07:35,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6246 Valid, 6263 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:35,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:36,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:36,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6373604465709728) internal successors, (8213), 5017 states have internal predecessors, (8213), 0 states have call successors, (0), 0 states 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 07:07:36,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8213 transitions. [2022-01-11 07:07:36,071 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8213 transitions. Word has length 154 [2022-01-11 07:07:36,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:36,071 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8213 transitions. [2022-01-11 07:07:36,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:36,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8213 transitions. [2022-01-11 07:07:36,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:36,074 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:36,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:36,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 07:07:36,074 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:36,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:36,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1778031975, now seen corresponding path program 1 times [2022-01-11 07:07:36,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:36,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096738865] [2022-01-11 07:07:36,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:36,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:36,158 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 07:07:36,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:36,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096738865] [2022-01-11 07:07:36,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096738865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:36,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:36,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:36,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928038613] [2022-01-11 07:07:36,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:36,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:36,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:36,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:36,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:36,162 INFO L87 Difference]: Start difference. First operand 5018 states and 8213 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:36,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:36,328 INFO L93 Difference]: Finished difference Result 7892 states and 12431 transitions. [2022-01-11 07:07:36,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:36,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:36,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:36,363 INFO L225 Difference]: With dead ends: 7892 [2022-01-11 07:07:36,363 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:36,370 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 07:07:36,371 INFO L933 BasicCegarLoop]: 6258 mSDtfsCounter, 6240 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6240 SdHoareTripleChecker+Valid, 6258 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 07:07:36,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6240 Valid, 6258 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:36,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:36,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:36,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6357655502392345) internal successors, (8205), 5017 states have internal predecessors, (8205), 0 states have call successors, (0), 0 states 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 07:07:36,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8205 transitions. [2022-01-11 07:07:36,565 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8205 transitions. Word has length 154 [2022-01-11 07:07:36,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:36,569 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8205 transitions. [2022-01-11 07:07:36,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:36,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8205 transitions. [2022-01-11 07:07:36,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:36,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:36,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:36,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 07:07:36,578 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:36,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:36,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1763879609, now seen corresponding path program 1 times [2022-01-11 07:07:36,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:36,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362754164] [2022-01-11 07:07:36,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:36,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:36,669 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 07:07:36,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:36,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362754164] [2022-01-11 07:07:36,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362754164] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:36,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:36,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:36,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242673862] [2022-01-11 07:07:36,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:36,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:36,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:36,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:36,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:36,671 INFO L87 Difference]: Start difference. First operand 5018 states and 8205 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:36,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:36,859 INFO L93 Difference]: Finished difference Result 7891 states and 12414 transitions. [2022-01-11 07:07:36,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:36,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:36,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:36,873 INFO L225 Difference]: With dead ends: 7891 [2022-01-11 07:07:36,873 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:36,882 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 07:07:36,884 INFO L933 BasicCegarLoop]: 6253 mSDtfsCounter, 6234 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6234 SdHoareTripleChecker+Valid, 6253 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 07:07:36,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6234 Valid, 6253 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:36,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:37,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:37,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.634170653907496) internal successors, (8197), 5017 states have internal predecessors, (8197), 0 states have call successors, (0), 0 states 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 07:07:37,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8197 transitions. [2022-01-11 07:07:37,074 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8197 transitions. Word has length 154 [2022-01-11 07:07:37,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:37,076 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8197 transitions. [2022-01-11 07:07:37,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:37,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8197 transitions. [2022-01-11 07:07:37,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:37,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:37,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:37,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 07:07:37,078 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:37,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:37,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1462492825, now seen corresponding path program 1 times [2022-01-11 07:07:37,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:37,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147375670] [2022-01-11 07:07:37,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:37,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:37,138 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 07:07:37,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:37,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147375670] [2022-01-11 07:07:37,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147375670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:37,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:37,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:37,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320718689] [2022-01-11 07:07:37,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:37,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:37,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:37,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:37,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:37,141 INFO L87 Difference]: Start difference. First operand 5018 states and 8197 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:37,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:37,363 INFO L93 Difference]: Finished difference Result 7890 states and 12397 transitions. [2022-01-11 07:07:37,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:37,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:37,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:37,377 INFO L225 Difference]: With dead ends: 7890 [2022-01-11 07:07:37,377 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:37,383 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 07:07:37,383 INFO L933 BasicCegarLoop]: 6248 mSDtfsCounter, 6228 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6228 SdHoareTripleChecker+Valid, 6248 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 07:07:37,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6228 Valid, 6248 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:37,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:37,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:37,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6325757575757576) internal successors, (8189), 5017 states have internal predecessors, (8189), 0 states have call successors, (0), 0 states 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 07:07:37,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8189 transitions. [2022-01-11 07:07:37,549 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8189 transitions. Word has length 154 [2022-01-11 07:07:37,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:37,549 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8189 transitions. [2022-01-11 07:07:37,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:37,549 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8189 transitions. [2022-01-11 07:07:37,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:37,551 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:37,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:37,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 07:07:37,552 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:37,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:37,552 INFO L85 PathProgramCache]: Analyzing trace with hash 348344647, now seen corresponding path program 1 times [2022-01-11 07:07:37,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:37,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326223944] [2022-01-11 07:07:37,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:37,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:37,596 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 07:07:37,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:37,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326223944] [2022-01-11 07:07:37,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326223944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:37,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:37,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:37,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836663607] [2022-01-11 07:07:37,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:37,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:37,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:37,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:37,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:37,598 INFO L87 Difference]: Start difference. First operand 5018 states and 8189 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:37,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:37,746 INFO L93 Difference]: Finished difference Result 7889 states and 12380 transitions. [2022-01-11 07:07:37,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:37,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:37,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:37,762 INFO L225 Difference]: With dead ends: 7889 [2022-01-11 07:07:37,762 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:37,770 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 07:07:37,771 INFO L933 BasicCegarLoop]: 6243 mSDtfsCounter, 6222 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6222 SdHoareTripleChecker+Valid, 6243 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 07:07:37,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6222 Valid, 6243 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:37,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:37,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:37,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.630980861244019) internal successors, (8181), 5017 states have internal predecessors, (8181), 0 states have call successors, (0), 0 states 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 07:07:37,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8181 transitions. [2022-01-11 07:07:37,946 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8181 transitions. Word has length 154 [2022-01-11 07:07:37,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:37,946 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8181 transitions. [2022-01-11 07:07:37,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:37,947 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8181 transitions. [2022-01-11 07:07:37,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:37,948 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:37,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:37,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 07:07:37,949 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:37,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:37,950 INFO L85 PathProgramCache]: Analyzing trace with hash 406758759, now seen corresponding path program 1 times [2022-01-11 07:07:37,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:37,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16183609] [2022-01-11 07:07:37,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:37,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:38,000 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 07:07:38,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:38,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16183609] [2022-01-11 07:07:38,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16183609] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:38,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:38,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:38,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032379625] [2022-01-11 07:07:38,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:38,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:38,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:38,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:38,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:38,003 INFO L87 Difference]: Start difference. First operand 5018 states and 8181 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:38,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:38,155 INFO L93 Difference]: Finished difference Result 7888 states and 12363 transitions. [2022-01-11 07:07:38,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:38,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:38,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:38,167 INFO L225 Difference]: With dead ends: 7888 [2022-01-11 07:07:38,168 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:38,174 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 07:07:38,175 INFO L933 BasicCegarLoop]: 6238 mSDtfsCounter, 6216 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6216 SdHoareTripleChecker+Valid, 6238 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 07:07:38,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6216 Valid, 6238 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:38,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:38,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:38,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6293859649122806) internal successors, (8173), 5017 states have internal predecessors, (8173), 0 states have call successors, (0), 0 states 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 07:07:38,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8173 transitions. [2022-01-11 07:07:38,340 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8173 transitions. Word has length 154 [2022-01-11 07:07:38,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:38,341 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8173 transitions. [2022-01-11 07:07:38,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:38,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8173 transitions. [2022-01-11 07:07:38,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:38,343 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:38,343 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:38,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 07:07:38,343 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:38,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:38,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1946661561, now seen corresponding path program 1 times [2022-01-11 07:07:38,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:38,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99844457] [2022-01-11 07:07:38,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:38,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:38,401 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 07:07:38,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:38,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99844457] [2022-01-11 07:07:38,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99844457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:38,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:38,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:38,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297396339] [2022-01-11 07:07:38,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:38,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:38,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:38,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:38,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:38,403 INFO L87 Difference]: Start difference. First operand 5018 states and 8173 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:38,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:38,584 INFO L93 Difference]: Finished difference Result 7887 states and 12346 transitions. [2022-01-11 07:07:38,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:38,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:38,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:38,597 INFO L225 Difference]: With dead ends: 7887 [2022-01-11 07:07:38,598 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:38,605 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 07:07:38,606 INFO L933 BasicCegarLoop]: 6233 mSDtfsCounter, 6210 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6210 SdHoareTripleChecker+Valid, 6233 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 07:07:38,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6210 Valid, 6233 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:38,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:38,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:38,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6277910685805423) internal successors, (8165), 5017 states have internal predecessors, (8165), 0 states have call successors, (0), 0 states 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 07:07:38,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8165 transitions. [2022-01-11 07:07:38,811 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8165 transitions. Word has length 154 [2022-01-11 07:07:38,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:38,812 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8165 transitions. [2022-01-11 07:07:38,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:38,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8165 transitions. [2022-01-11 07:07:38,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:38,814 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:38,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:38,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 07:07:38,815 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:38,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:38,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1468389017, now seen corresponding path program 1 times [2022-01-11 07:07:38,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:38,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133622496] [2022-01-11 07:07:38,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:38,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:38,883 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 07:07:38,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:38,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133622496] [2022-01-11 07:07:38,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133622496] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:38,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:38,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:38,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101874100] [2022-01-11 07:07:38,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:38,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:38,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:38,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:38,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:38,886 INFO L87 Difference]: Start difference. First operand 5018 states and 8165 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:39,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:39,083 INFO L93 Difference]: Finished difference Result 7886 states and 12329 transitions. [2022-01-11 07:07:39,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:39,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:39,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:39,098 INFO L225 Difference]: With dead ends: 7886 [2022-01-11 07:07:39,098 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:39,106 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 07:07:39,106 INFO L933 BasicCegarLoop]: 6228 mSDtfsCounter, 6204 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6204 SdHoareTripleChecker+Valid, 6228 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 07:07:39,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6204 Valid, 6228 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:39,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:39,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:39,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6261961722488039) internal successors, (8157), 5017 states have internal predecessors, (8157), 0 states have call successors, (0), 0 states 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 07:07:39,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8157 transitions. [2022-01-11 07:07:39,322 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8157 transitions. Word has length 154 [2022-01-11 07:07:39,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:39,324 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8157 transitions. [2022-01-11 07:07:39,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:39,324 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8157 transitions. [2022-01-11 07:07:39,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:39,326 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:39,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:39,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 07:07:39,327 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:39,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:39,327 INFO L85 PathProgramCache]: Analyzing trace with hash 71059783, now seen corresponding path program 1 times [2022-01-11 07:07:39,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:39,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427828143] [2022-01-11 07:07:39,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:39,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:39,381 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 07:07:39,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:39,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427828143] [2022-01-11 07:07:39,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427828143] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:39,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:39,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:39,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105465215] [2022-01-11 07:07:39,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:39,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:39,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:39,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:39,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:39,383 INFO L87 Difference]: Start difference. First operand 5018 states and 8157 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:39,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:39,641 INFO L93 Difference]: Finished difference Result 7885 states and 12312 transitions. [2022-01-11 07:07:39,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:39,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:39,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:39,654 INFO L225 Difference]: With dead ends: 7885 [2022-01-11 07:07:39,654 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:39,661 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 07:07:39,662 INFO L933 BasicCegarLoop]: 6195 mSDtfsCounter, 6062 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6062 SdHoareTripleChecker+Valid, 6313 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:39,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6062 Valid, 6313 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:07:39,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:39,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:39,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6194178628389155) internal successors, (8123), 5017 states have internal predecessors, (8123), 0 states have call successors, (0), 0 states 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 07:07:39,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8123 transitions. [2022-01-11 07:07:39,911 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8123 transitions. Word has length 154 [2022-01-11 07:07:39,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:39,911 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8123 transitions. [2022-01-11 07:07:39,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:39,912 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8123 transitions. [2022-01-11 07:07:39,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:39,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:39,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:39,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 07:07:39,914 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:39,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:39,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1448839450, now seen corresponding path program 1 times [2022-01-11 07:07:39,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:39,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443750512] [2022-01-11 07:07:39,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:39,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:39,965 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 07:07:39,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:39,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443750512] [2022-01-11 07:07:39,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443750512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:39,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:39,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:39,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223452114] [2022-01-11 07:07:39,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:39,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:39,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:39,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:39,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:39,967 INFO L87 Difference]: Start difference. First operand 5018 states and 8123 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:40,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:40,178 INFO L93 Difference]: Finished difference Result 7884 states and 12243 transitions. [2022-01-11 07:07:40,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:40,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:40,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:40,191 INFO L225 Difference]: With dead ends: 7884 [2022-01-11 07:07:40,191 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:40,199 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 07:07:40,200 INFO L933 BasicCegarLoop]: 6176 mSDtfsCounter, 6043 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6043 SdHoareTripleChecker+Valid, 6293 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:40,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6043 Valid, 6293 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:40,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:40,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:40,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6126395534290272) internal successors, (8089), 5017 states have internal predecessors, (8089), 0 states have call successors, (0), 0 states 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 07:07:40,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8089 transitions. [2022-01-11 07:07:40,379 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8089 transitions. Word has length 154 [2022-01-11 07:07:40,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:40,380 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8089 transitions. [2022-01-11 07:07:40,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:40,380 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8089 transitions. [2022-01-11 07:07:40,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:40,382 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:40,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:40,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 07:07:40,382 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:40,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:40,383 INFO L85 PathProgramCache]: Analyzing trace with hash 461611909, now seen corresponding path program 1 times [2022-01-11 07:07:40,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:40,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818646550] [2022-01-11 07:07:40,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:40,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:40,434 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 07:07:40,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:40,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818646550] [2022-01-11 07:07:40,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818646550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:40,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:40,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:40,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50642969] [2022-01-11 07:07:40,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:40,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:40,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:40,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:40,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:40,436 INFO L87 Difference]: Start difference. First operand 5018 states and 8089 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:40,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:40,651 INFO L93 Difference]: Finished difference Result 7883 states and 12174 transitions. [2022-01-11 07:07:40,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:40,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:40,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:40,662 INFO L225 Difference]: With dead ends: 7883 [2022-01-11 07:07:40,663 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:40,667 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 07:07:40,668 INFO L933 BasicCegarLoop]: 6157 mSDtfsCounter, 6024 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6024 SdHoareTripleChecker+Valid, 6273 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:40,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6024 Valid, 6273 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:40,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:40,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:40,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.6058612440191387) internal successors, (8055), 5017 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 07:07:40,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8055 transitions. [2022-01-11 07:07:40,837 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8055 transitions. Word has length 154 [2022-01-11 07:07:40,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:40,837 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8055 transitions. [2022-01-11 07:07:40,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:40,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8055 transitions. [2022-01-11 07:07:40,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:40,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:40,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:40,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 07:07:40,840 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:40,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:40,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1884201052, now seen corresponding path program 1 times [2022-01-11 07:07:40,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:40,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611332437] [2022-01-11 07:07:40,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:40,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:40,894 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 07:07:40,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:40,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611332437] [2022-01-11 07:07:40,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611332437] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:40,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:40,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:40,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822608880] [2022-01-11 07:07:40,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:40,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:40,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:40,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:40,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:40,896 INFO L87 Difference]: Start difference. First operand 5018 states and 8055 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:41,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:41,091 INFO L93 Difference]: Finished difference Result 7882 states and 12105 transitions. [2022-01-11 07:07:41,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:41,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:41,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:41,103 INFO L225 Difference]: With dead ends: 7882 [2022-01-11 07:07:41,103 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:41,111 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 07:07:41,112 INFO L933 BasicCegarLoop]: 6138 mSDtfsCounter, 6005 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6005 SdHoareTripleChecker+Valid, 6253 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:41,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6005 Valid, 6253 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:41,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:41,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:41,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5990829346092503) internal successors, (8021), 5017 states have internal predecessors, (8021), 0 states have call successors, (0), 0 states 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 07:07:41,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 8021 transitions. [2022-01-11 07:07:41,292 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 8021 transitions. Word has length 154 [2022-01-11 07:07:41,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:41,292 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 8021 transitions. [2022-01-11 07:07:41,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:41,292 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 8021 transitions. [2022-01-11 07:07:41,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:41,294 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:41,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:41,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 07:07:41,295 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:41,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:41,295 INFO L85 PathProgramCache]: Analyzing trace with hash -29955389, now seen corresponding path program 1 times [2022-01-11 07:07:41,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:41,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357400017] [2022-01-11 07:07:41,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:41,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:41,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:07:41,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:41,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357400017] [2022-01-11 07:07:41,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357400017] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:41,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:41,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:41,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698392068] [2022-01-11 07:07:41,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:41,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:41,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:41,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:41,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:41,348 INFO L87 Difference]: Start difference. First operand 5018 states and 8021 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:41,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:41,532 INFO L93 Difference]: Finished difference Result 7880 states and 12034 transitions. [2022-01-11 07:07:41,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:41,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:41,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:41,546 INFO L225 Difference]: With dead ends: 7880 [2022-01-11 07:07:41,547 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:41,554 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 07:07:41,554 INFO L933 BasicCegarLoop]: 6119 mSDtfsCounter, 5985 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5985 SdHoareTripleChecker+Valid, 6233 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:41,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5985 Valid, 6233 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:41,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:41,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:41,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.592304625199362) internal successors, (7987), 5017 states have internal predecessors, (7987), 0 states have call successors, (0), 0 states 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 07:07:41,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7987 transitions. [2022-01-11 07:07:41,736 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7987 transitions. Word has length 154 [2022-01-11 07:07:41,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:41,736 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7987 transitions. [2022-01-11 07:07:41,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:41,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7987 transitions. [2022-01-11 07:07:41,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:41,738 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:41,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:41,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 07:07:41,739 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:41,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:41,740 INFO L85 PathProgramCache]: Analyzing trace with hash -85552030, now seen corresponding path program 1 times [2022-01-11 07:07:41,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:41,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204135334] [2022-01-11 07:07:41,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:41,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:41,796 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 07:07:41,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:41,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204135334] [2022-01-11 07:07:41,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204135334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:41,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:41,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:41,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778611928] [2022-01-11 07:07:41,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:41,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:41,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:41,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:41,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:41,798 INFO L87 Difference]: Start difference. First operand 5018 states and 7987 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:41,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:41,985 INFO L93 Difference]: Finished difference Result 7879 states and 11965 transitions. [2022-01-11 07:07:41,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:41,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:41,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:41,999 INFO L225 Difference]: With dead ends: 7879 [2022-01-11 07:07:42,000 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:42,006 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 07:07:42,007 INFO L933 BasicCegarLoop]: 6100 mSDtfsCounter, 5966 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5966 SdHoareTripleChecker+Valid, 6213 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:42,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5966 Valid, 6213 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:42,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:42,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:42,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5855263157894737) internal successors, (7953), 5017 states have internal predecessors, (7953), 0 states have call successors, (0), 0 states 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 07:07:42,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7953 transitions. [2022-01-11 07:07:42,196 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7953 transitions. Word has length 154 [2022-01-11 07:07:42,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:42,197 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7953 transitions. [2022-01-11 07:07:42,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:42,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7953 transitions. [2022-01-11 07:07:42,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:42,198 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:42,199 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:42,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 07:07:42,199 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:42,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:42,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1188647551, now seen corresponding path program 1 times [2022-01-11 07:07:42,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:42,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471330849] [2022-01-11 07:07:42,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:42,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:42,246 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 07:07:42,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:42,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471330849] [2022-01-11 07:07:42,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471330849] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:42,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:42,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:42,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930345184] [2022-01-11 07:07:42,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:42,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:42,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:42,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:42,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:42,248 INFO L87 Difference]: Start difference. First operand 5018 states and 7953 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:42,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:42,437 INFO L93 Difference]: Finished difference Result 7878 states and 11896 transitions. [2022-01-11 07:07:42,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:42,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:42,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:42,450 INFO L225 Difference]: With dead ends: 7878 [2022-01-11 07:07:42,450 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:42,456 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 07:07:42,457 INFO L933 BasicCegarLoop]: 6081 mSDtfsCounter, 5947 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5947 SdHoareTripleChecker+Valid, 6193 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:42,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5947 Valid, 6193 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:42,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:42,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:42,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5787480063795853) internal successors, (7919), 5017 states have internal predecessors, (7919), 0 states have call successors, (0), 0 states 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 07:07:42,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7919 transitions. [2022-01-11 07:07:42,649 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7919 transitions. Word has length 154 [2022-01-11 07:07:42,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:42,649 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7919 transitions. [2022-01-11 07:07:42,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:42,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7919 transitions. [2022-01-11 07:07:42,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:42,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:42,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:42,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 07:07:42,651 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:42,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:42,652 INFO L85 PathProgramCache]: Analyzing trace with hash 396637600, now seen corresponding path program 1 times [2022-01-11 07:07:42,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:42,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163016434] [2022-01-11 07:07:42,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:42,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:42,726 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 07:07:42,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:42,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163016434] [2022-01-11 07:07:42,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163016434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:42,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:42,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:42,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664333273] [2022-01-11 07:07:42,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:42,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:42,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:42,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:42,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:42,728 INFO L87 Difference]: Start difference. First operand 5018 states and 7919 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:42,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:42,960 INFO L93 Difference]: Finished difference Result 7877 states and 11827 transitions. [2022-01-11 07:07:42,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:42,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:42,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:42,970 INFO L225 Difference]: With dead ends: 7877 [2022-01-11 07:07:42,970 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:42,974 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 07:07:42,975 INFO L933 BasicCegarLoop]: 6062 mSDtfsCounter, 5928 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5928 SdHoareTripleChecker+Valid, 6173 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:42,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5928 Valid, 6173 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:42,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:43,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:43,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.571969696969697) internal successors, (7885), 5017 states have internal predecessors, (7885), 0 states have call successors, (0), 0 states 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 07:07:43,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7885 transitions. [2022-01-11 07:07:43,148 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7885 transitions. Word has length 154 [2022-01-11 07:07:43,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:43,148 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7885 transitions. [2022-01-11 07:07:43,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:43,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7885 transitions. [2022-01-11 07:07:43,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:43,149 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:43,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:43,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 07:07:43,150 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:43,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:43,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2003901759, now seen corresponding path program 1 times [2022-01-11 07:07:43,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:43,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641198398] [2022-01-11 07:07:43,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:43,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:43,193 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 07:07:43,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:43,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641198398] [2022-01-11 07:07:43,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641198398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:43,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:43,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:43,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946407282] [2022-01-11 07:07:43,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:43,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:43,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:43,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:43,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:43,195 INFO L87 Difference]: Start difference. First operand 5018 states and 7885 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:43,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:43,422 INFO L93 Difference]: Finished difference Result 7876 states and 11758 transitions. [2022-01-11 07:07:43,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:43,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:43,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:43,432 INFO L225 Difference]: With dead ends: 7876 [2022-01-11 07:07:43,433 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:43,438 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 07:07:43,438 INFO L933 BasicCegarLoop]: 6043 mSDtfsCounter, 5909 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5909 SdHoareTripleChecker+Valid, 6153 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:43,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5909 Valid, 6153 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:43,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:43,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:43,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5651913875598087) internal successors, (7851), 5017 states have internal predecessors, (7851), 0 states have call successors, (0), 0 states 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 07:07:43,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7851 transitions. [2022-01-11 07:07:43,619 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7851 transitions. Word has length 154 [2022-01-11 07:07:43,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:43,619 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7851 transitions. [2022-01-11 07:07:43,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:43,620 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7851 transitions. [2022-01-11 07:07:43,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:43,621 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:43,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:43,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 07:07:43,621 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:43,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:43,622 INFO L85 PathProgramCache]: Analyzing trace with hash 494945246, now seen corresponding path program 1 times [2022-01-11 07:07:43,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:43,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828878053] [2022-01-11 07:07:43,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:43,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:43,669 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 07:07:43,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:43,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828878053] [2022-01-11 07:07:43,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828878053] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:43,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:43,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:43,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225245019] [2022-01-11 07:07:43,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:43,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:43,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:43,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:43,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:43,671 INFO L87 Difference]: Start difference. First operand 5018 states and 7851 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:43,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:43,884 INFO L93 Difference]: Finished difference Result 7875 states and 11689 transitions. [2022-01-11 07:07:43,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:43,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:43,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:43,894 INFO L225 Difference]: With dead ends: 7875 [2022-01-11 07:07:43,895 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:43,903 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 07:07:43,904 INFO L933 BasicCegarLoop]: 6024 mSDtfsCounter, 5890 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5890 SdHoareTripleChecker+Valid, 6133 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:43,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5890 Valid, 6133 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:43,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:44,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:44,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5584130781499204) internal successors, (7817), 5017 states have internal predecessors, (7817), 0 states have call successors, (0), 0 states 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 07:07:44,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7817 transitions. [2022-01-11 07:07:44,098 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7817 transitions. Word has length 154 [2022-01-11 07:07:44,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:44,099 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7817 transitions. [2022-01-11 07:07:44,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:44,099 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7817 transitions. [2022-01-11 07:07:44,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:44,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:44,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:44,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 07:07:44,101 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:44,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:44,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1353824765, now seen corresponding path program 1 times [2022-01-11 07:07:44,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:44,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498519614] [2022-01-11 07:07:44,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:44,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:44,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:07:44,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:44,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498519614] [2022-01-11 07:07:44,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498519614] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:44,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:44,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:44,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437800484] [2022-01-11 07:07:44,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:44,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:44,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:44,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:44,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:44,164 INFO L87 Difference]: Start difference. First operand 5018 states and 7817 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:44,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:44,386 INFO L93 Difference]: Finished difference Result 7874 states and 11620 transitions. [2022-01-11 07:07:44,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:44,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:44,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:44,398 INFO L225 Difference]: With dead ends: 7874 [2022-01-11 07:07:44,399 INFO L226 Difference]: Without dead ends: 5018 [2022-01-11 07:07:44,406 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 07:07:44,407 INFO L933 BasicCegarLoop]: 6005 mSDtfsCounter, 5871 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5871 SdHoareTripleChecker+Valid, 6113 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:44,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5871 Valid, 6113 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:44,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-11 07:07:44,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 5018. [2022-01-11 07:07:44,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5016 states have (on average 1.5516347687400318) internal successors, (7783), 5017 states have internal predecessors, (7783), 0 states have call successors, (0), 0 states 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 07:07:44,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 7783 transitions. [2022-01-11 07:07:44,597 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 7783 transitions. Word has length 154 [2022-01-11 07:07:44,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:44,598 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 7783 transitions. [2022-01-11 07:07:44,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:44,598 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 7783 transitions. [2022-01-11 07:07:44,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:44,599 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:44,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:44,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 07:07:44,600 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:44,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:44,600 INFO L85 PathProgramCache]: Analyzing trace with hash 104218396, now seen corresponding path program 1 times [2022-01-11 07:07:44,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:44,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532347005] [2022-01-11 07:07:44,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:44,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:44,665 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 07:07:44,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:44,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532347005] [2022-01-11 07:07:44,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532347005] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:44,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:44,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:07:44,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021297421] [2022-01-11 07:07:44,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:44,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:07:44,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:44,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:07:44,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:07:44,667 INFO L87 Difference]: Start difference. First operand 5018 states and 7783 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:45,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:45,139 INFO L93 Difference]: Finished difference Result 8900 states and 12971 transitions. [2022-01-11 07:07:45,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:07:45,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:45,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:45,151 INFO L225 Difference]: With dead ends: 8900 [2022-01-11 07:07:45,152 INFO L226 Difference]: Without dead ends: 6058 [2022-01-11 07:07:45,156 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 07:07:45,157 INFO L933 BasicCegarLoop]: 6156 mSDtfsCounter, 5752 mSDsluCounter, 14058 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5752 SdHoareTripleChecker+Valid, 20214 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:45,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5752 Valid, 20214 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:07:45,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6058 states. [2022-01-11 07:07:45,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6058 to 5024. [2022-01-11 07:07:45,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5024 states, 5022 states have (on average 1.5457984866587018) internal successors, (7763), 5023 states have internal predecessors, (7763), 0 states have call successors, (0), 0 states 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 07:07:45,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5024 states to 5024 states and 7763 transitions. [2022-01-11 07:07:45,484 INFO L78 Accepts]: Start accepts. Automaton has 5024 states and 7763 transitions. Word has length 154 [2022-01-11 07:07:45,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:45,485 INFO L470 AbstractCegarLoop]: Abstraction has 5024 states and 7763 transitions. [2022-01-11 07:07:45,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:45,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5024 states and 7763 transitions. [2022-01-11 07:07:45,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:45,486 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:45,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:45,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 07:07:45,486 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:45,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:45,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1598130845, now seen corresponding path program 1 times [2022-01-11 07:07:45,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:45,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016073270] [2022-01-11 07:07:45,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:45,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:45,540 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 07:07:45,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:45,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016073270] [2022-01-11 07:07:45,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016073270] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:45,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:45,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:45,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850419128] [2022-01-11 07:07:45,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:45,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:45,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:45,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:45,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:45,542 INFO L87 Difference]: Start difference. First operand 5024 states and 7763 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:45,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:45,999 INFO L93 Difference]: Finished difference Result 10406 states and 14809 transitions. [2022-01-11 07:07:45,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:45,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:46,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:46,014 INFO L225 Difference]: With dead ends: 10406 [2022-01-11 07:07:46,014 INFO L226 Difference]: Without dead ends: 7574 [2022-01-11 07:07:46,022 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 07:07:46,022 INFO L933 BasicCegarLoop]: 5992 mSDtfsCounter, 5785 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5785 SdHoareTripleChecker+Valid, 7820 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:46,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5785 Valid, 7820 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:46,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7574 states. [2022-01-11 07:07:46,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7574 to 7568. [2022-01-11 07:07:46,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7568 states, 7566 states have (on average 1.4623314829500396) internal successors, (11064), 7567 states have internal predecessors, (11064), 0 states have call successors, (0), 0 states 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 07:07:46,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7568 states to 7568 states and 11064 transitions. [2022-01-11 07:07:46,467 INFO L78 Accepts]: Start accepts. Automaton has 7568 states and 11064 transitions. Word has length 154 [2022-01-11 07:07:46,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:46,468 INFO L470 AbstractCegarLoop]: Abstraction has 7568 states and 11064 transitions. [2022-01-11 07:07:46,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:46,468 INFO L276 IsEmpty]: Start isEmpty. Operand 7568 states and 11064 transitions. [2022-01-11 07:07:46,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:46,469 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:46,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:46,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 07:07:46,470 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:46,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:46,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1493901596, now seen corresponding path program 1 times [2022-01-11 07:07:46,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:46,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179436774] [2022-01-11 07:07:46,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:46,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:46,531 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 07:07:46,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:46,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179436774] [2022-01-11 07:07:46,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179436774] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:46,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:46,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:07:46,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248118120] [2022-01-11 07:07:46,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:46,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:07:46,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:46,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:07:46,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:07:46,533 INFO L87 Difference]: Start difference. First operand 7568 states and 11064 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:47,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:47,366 INFO L93 Difference]: Finished difference Result 16418 states and 22711 transitions. [2022-01-11 07:07:47,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:07:47,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:47,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:47,387 INFO L225 Difference]: With dead ends: 16418 [2022-01-11 07:07:47,387 INFO L226 Difference]: Without dead ends: 11060 [2022-01-11 07:07:47,398 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 07:07:47,399 INFO L933 BasicCegarLoop]: 6045 mSDtfsCounter, 4940 mSDsluCounter, 15764 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4940 SdHoareTripleChecker+Valid, 21809 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:47,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4940 Valid, 21809 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:07:47,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11060 states. [2022-01-11 07:07:47,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11060 to 7580. [2022-01-11 07:07:47,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7580 states, 7578 states have (on average 1.4551332805489574) internal successors, (11027), 7579 states have internal predecessors, (11027), 0 states have call successors, (0), 0 states 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 07:07:47,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7580 states to 7580 states and 11027 transitions. [2022-01-11 07:07:47,903 INFO L78 Accepts]: Start accepts. Automaton has 7580 states and 11027 transitions. Word has length 154 [2022-01-11 07:07:47,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:47,904 INFO L470 AbstractCegarLoop]: Abstraction has 7580 states and 11027 transitions. [2022-01-11 07:07:47,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:47,904 INFO L276 IsEmpty]: Start isEmpty. Operand 7580 states and 11027 transitions. [2022-01-11 07:07:47,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:47,905 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:47,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:47,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 07:07:47,906 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:47,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:47,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1010226269, now seen corresponding path program 1 times [2022-01-11 07:07:47,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:47,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277291822] [2022-01-11 07:07:47,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:47,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:47,967 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 07:07:47,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:47,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277291822] [2022-01-11 07:07:47,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277291822] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:47,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:47,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:07:47,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095699340] [2022-01-11 07:07:47,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:47,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:07:47,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:47,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:07:47,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:07:47,969 INFO L87 Difference]: Start difference. First operand 7580 states and 11027 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:48,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:48,819 INFO L93 Difference]: Finished difference Result 16741 states and 22977 transitions. [2022-01-11 07:07:48,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:07:48,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:48,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:48,841 INFO L225 Difference]: With dead ends: 16741 [2022-01-11 07:07:48,841 INFO L226 Difference]: Without dead ends: 11378 [2022-01-11 07:07:48,854 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 07:07:48,855 INFO L933 BasicCegarLoop]: 6013 mSDtfsCounter, 4760 mSDsluCounter, 16069 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4760 SdHoareTripleChecker+Valid, 22082 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:48,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4760 Valid, 22082 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:07:48,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11378 states. [2022-01-11 07:07:49,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11378 to 7592. [2022-01-11 07:07:49,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7592 states, 7590 states have (on average 1.447957839262187) internal successors, (10990), 7591 states have internal predecessors, (10990), 0 states have call successors, (0), 0 states 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 07:07:49,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7592 states to 7592 states and 10990 transitions. [2022-01-11 07:07:49,337 INFO L78 Accepts]: Start accepts. Automaton has 7592 states and 10990 transitions. Word has length 154 [2022-01-11 07:07:49,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:49,337 INFO L470 AbstractCegarLoop]: Abstraction has 7592 states and 10990 transitions. [2022-01-11 07:07:49,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:49,338 INFO L276 IsEmpty]: Start isEmpty. Operand 7592 states and 10990 transitions. [2022-01-11 07:07:49,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:49,339 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:49,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:49,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 07:07:49,340 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:49,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:49,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1980347298, now seen corresponding path program 1 times [2022-01-11 07:07:49,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:49,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546423664] [2022-01-11 07:07:49,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:49,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:49,409 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 07:07:49,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:49,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546423664] [2022-01-11 07:07:49,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546423664] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:49,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:49,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:49,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295965908] [2022-01-11 07:07:49,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:49,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:49,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:49,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:49,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:49,411 INFO L87 Difference]: Start difference. First operand 7592 states and 10990 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:49,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:49,924 INFO L93 Difference]: Finished difference Result 13043 states and 17989 transitions. [2022-01-11 07:07:49,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:49,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:49,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:49,935 INFO L225 Difference]: With dead ends: 13043 [2022-01-11 07:07:49,935 INFO L226 Difference]: Without dead ends: 7592 [2022-01-11 07:07:49,943 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 07:07:49,943 INFO L933 BasicCegarLoop]: 5969 mSDtfsCounter, 5857 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5857 SdHoareTripleChecker+Valid, 5969 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 07:07:49,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5857 Valid, 5969 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:49,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7592 states. [2022-01-11 07:07:50,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7592 to 7592. [2022-01-11 07:07:50,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7592 states, 7590 states have (on average 1.4461133069828722) internal successors, (10976), 7591 states have internal predecessors, (10976), 0 states have call successors, (0), 0 states 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 07:07:50,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7592 states to 7592 states and 10976 transitions. [2022-01-11 07:07:50,362 INFO L78 Accepts]: Start accepts. Automaton has 7592 states and 10976 transitions. Word has length 154 [2022-01-11 07:07:50,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:50,362 INFO L470 AbstractCegarLoop]: Abstraction has 7592 states and 10976 transitions. [2022-01-11 07:07:50,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:50,363 INFO L276 IsEmpty]: Start isEmpty. Operand 7592 states and 10976 transitions. [2022-01-11 07:07:50,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:50,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:50,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:50,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 07:07:50,364 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:50,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:50,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1650581537, now seen corresponding path program 1 times [2022-01-11 07:07:50,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:50,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892303249] [2022-01-11 07:07:50,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:50,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:50,428 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 07:07:50,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:50,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892303249] [2022-01-11 07:07:50,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892303249] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:50,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:50,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:50,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97766788] [2022-01-11 07:07:50,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:50,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:50,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:50,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:50,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:50,430 INFO L87 Difference]: Start difference. First operand 7592 states and 10976 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:50,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:50,913 INFO L93 Difference]: Finished difference Result 13029 states and 17947 transitions. [2022-01-11 07:07:50,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:50,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:50,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:50,924 INFO L225 Difference]: With dead ends: 13029 [2022-01-11 07:07:50,924 INFO L226 Difference]: Without dead ends: 7592 [2022-01-11 07:07:50,930 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 07:07:50,930 INFO L933 BasicCegarLoop]: 5938 mSDtfsCounter, 5717 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5717 SdHoareTripleChecker+Valid, 6042 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:50,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5717 Valid, 6042 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:50,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7592 states. [2022-01-11 07:07:51,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7592 to 7592. [2022-01-11 07:07:51,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7592 states, 7590 states have (on average 1.4409749670619236) internal successors, (10937), 7591 states have internal predecessors, (10937), 0 states have call successors, (0), 0 states 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 07:07:51,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7592 states to 7592 states and 10937 transitions. [2022-01-11 07:07:51,398 INFO L78 Accepts]: Start accepts. Automaton has 7592 states and 10937 transitions. Word has length 154 [2022-01-11 07:07:51,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:51,398 INFO L470 AbstractCegarLoop]: Abstraction has 7592 states and 10937 transitions. [2022-01-11 07:07:51,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:51,398 INFO L276 IsEmpty]: Start isEmpty. Operand 7592 states and 10937 transitions. [2022-01-11 07:07:51,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:07:51,399 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:51,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:51,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 07:07:51,400 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:51,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:51,400 INFO L85 PathProgramCache]: Analyzing trace with hash -405817056, now seen corresponding path program 1 times [2022-01-11 07:07:51,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:51,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102787688] [2022-01-11 07:07:51,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:51,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:51,468 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 07:07:51,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:51,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102787688] [2022-01-11 07:07:51,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102787688] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:51,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:51,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:07:51,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189776674] [2022-01-11 07:07:51,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:51,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:51,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:51,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:51,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:51,470 INFO L87 Difference]: Start difference. First operand 7592 states and 10937 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:52,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:52,242 INFO L93 Difference]: Finished difference Result 18274 states and 24579 transitions. [2022-01-11 07:07:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:52,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:07:52,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:52,265 INFO L225 Difference]: With dead ends: 18274 [2022-01-11 07:07:52,265 INFO L226 Difference]: Without dead ends: 12846 [2022-01-11 07:07:52,274 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 07:07:52,275 INFO L933 BasicCegarLoop]: 5938 mSDtfsCounter, 5767 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5767 SdHoareTripleChecker+Valid, 7721 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:52,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5767 Valid, 7721 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:07:52,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12846 states. [2022-01-11 07:07:53,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12846 to 12504. [2022-01-11 07:07:53,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12504 states, 12502 states have (on average 1.3734602463605823) internal successors, (17171), 12503 states have internal predecessors, (17171), 0 states have call successors, (0), 0 states 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 07:07:53,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12504 states to 12504 states and 17171 transitions. [2022-01-11 07:07:53,038 INFO L78 Accepts]: Start accepts. Automaton has 12504 states and 17171 transitions. Word has length 154 [2022-01-11 07:07:53,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:53,038 INFO L470 AbstractCegarLoop]: Abstraction has 12504 states and 17171 transitions. [2022-01-11 07:07:53,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 07:07:53,038 INFO L276 IsEmpty]: Start isEmpty. Operand 12504 states and 17171 transitions. [2022-01-11 07:07:53,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 07:07:53,044 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:53,044 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:53,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 07:07:53,045 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:53,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:53,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1997236647, now seen corresponding path program 1 times [2022-01-11 07:07:53,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:53,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089818992] [2022-01-11 07:07:53,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:53,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:53,132 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 07:07:53,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:53,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089818992] [2022-01-11 07:07:53,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089818992] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:53,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:53,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:07:53,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128939306] [2022-01-11 07:07:53,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:53,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:53,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:53,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:53,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:53,135 INFO L87 Difference]: Start difference. First operand 12504 states and 17171 transitions. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states 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 07:07:54,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:54,472 INFO L93 Difference]: Finished difference Result 32883 states and 43137 transitions. [2022-01-11 07:07:54,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:54,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 250 [2022-01-11 07:07:54,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:54,500 INFO L225 Difference]: With dead ends: 32883 [2022-01-11 07:07:54,500 INFO L226 Difference]: Without dead ends: 22549 [2022-01-11 07:07:54,514 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 07:07:54,514 INFO L933 BasicCegarLoop]: 5935 mSDtfsCounter, 5797 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5797 SdHoareTripleChecker+Valid, 7718 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:07:54,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5797 Valid, 7718 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:07:54,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22549 states. [2022-01-11 07:07:55,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22549 to 21927. [2022-01-11 07:07:55,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21927 states, 21925 states have (on average 1.3280273660205246) internal successors, (29117), 21926 states have internal predecessors, (29117), 0 states have call successors, (0), 0 states 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 07:07:55,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21927 states to 21927 states and 29117 transitions. [2022-01-11 07:07:55,896 INFO L78 Accepts]: Start accepts. Automaton has 21927 states and 29117 transitions. Word has length 250 [2022-01-11 07:07:55,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:07:55,897 INFO L470 AbstractCegarLoop]: Abstraction has 21927 states and 29117 transitions. [2022-01-11 07:07:55,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states 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 07:07:55,897 INFO L276 IsEmpty]: Start isEmpty. Operand 21927 states and 29117 transitions. [2022-01-11 07:07:55,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 07:07:55,912 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:07:55,913 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:55,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 07:07:55,913 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:07:55,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:07:55,914 INFO L85 PathProgramCache]: Analyzing trace with hash 463387111, now seen corresponding path program 1 times [2022-01-11 07:07:55,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:07:55,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411854246] [2022-01-11 07:07:55,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:07:55,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:07:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:07:55,999 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 07:07:55,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:07:55,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411854246] [2022-01-11 07:07:55,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411854246] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:07:55,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:07:55,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:07:56,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203471153] [2022-01-11 07:07:56,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:07:56,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:07:56,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:07:56,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:07:56,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:07:56,001 INFO L87 Difference]: Start difference. First operand 21927 states and 29117 transitions. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states 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 07:07:58,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:07:58,535 INFO L93 Difference]: Finished difference Result 60153 states and 77329 transitions. [2022-01-11 07:07:58,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:07:58,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 250 [2022-01-11 07:07:58,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:07:58,596 INFO L225 Difference]: With dead ends: 60153 [2022-01-11 07:07:58,596 INFO L226 Difference]: Without dead ends: 40495 [2022-01-11 07:07:58,618 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 07:07:58,618 INFO L933 BasicCegarLoop]: 7166 mSDtfsCounter, 5548 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5548 SdHoareTripleChecker+Valid, 9140 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 07:07:58,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5548 Valid, 9140 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:07:58,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40495 states. [2022-01-11 07:08:01,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40495 to 40493. [2022-01-11 07:08:01,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40493 states, 40491 states have (on average 1.291225210540614) internal successors, (52283), 40492 states have internal predecessors, (52283), 0 states have call successors, (0), 0 states 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 07:08:01,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40493 states to 40493 states and 52283 transitions. [2022-01-11 07:08:01,290 INFO L78 Accepts]: Start accepts. Automaton has 40493 states and 52283 transitions. Word has length 250 [2022-01-11 07:08:01,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:01,290 INFO L470 AbstractCegarLoop]: Abstraction has 40493 states and 52283 transitions. [2022-01-11 07:08:01,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states 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 07:08:01,290 INFO L276 IsEmpty]: Start isEmpty. Operand 40493 states and 52283 transitions. [2022-01-11 07:08:01,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 07:08:01,312 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:01,313 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:01,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-11 07:08:01,313 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:01,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:01,313 INFO L85 PathProgramCache]: Analyzing trace with hash 292547654, now seen corresponding path program 1 times [2022-01-11 07:08:01,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:01,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646864494] [2022-01-11 07:08:01,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:01,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:01,355 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 07:08:01,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:01,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646864494] [2022-01-11 07:08:01,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646864494] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:01,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:01,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:01,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945692760] [2022-01-11 07:08:01,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:01,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:01,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:01,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:01,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:01,358 INFO L87 Difference]: Start difference. First operand 40493 states and 52283 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states 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 07:08:04,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:08:04,292 INFO L93 Difference]: Finished difference Result 78575 states and 100260 transitions. [2022-01-11 07:08:04,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:08:04,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 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 250 [2022-01-11 07:08:04,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:08:04,342 INFO L225 Difference]: With dead ends: 78575 [2022-01-11 07:08:04,342 INFO L226 Difference]: Without dead ends: 40351 [2022-01-11 07:08:04,370 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 07:08:04,370 INFO L933 BasicCegarLoop]: 5950 mSDtfsCounter, 1988 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1988 SdHoareTripleChecker+Valid, 9908 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 07:08:04,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1988 Valid, 9908 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:08:04,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40351 states. [2022-01-11 07:08:06,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40351 to 40351. [2022-01-11 07:08:06,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40351 states, 40349 states have (on average 1.2915313886341668) internal successors, (52112), 40350 states have internal predecessors, (52112), 0 states have call successors, (0), 0 states 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 07:08:06,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40351 states to 40351 states and 52112 transitions. [2022-01-11 07:08:06,880 INFO L78 Accepts]: Start accepts. Automaton has 40351 states and 52112 transitions. Word has length 250 [2022-01-11 07:08:06,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:08:06,880 INFO L470 AbstractCegarLoop]: Abstraction has 40351 states and 52112 transitions. [2022-01-11 07:08:06,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states 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 07:08:06,881 INFO L276 IsEmpty]: Start isEmpty. Operand 40351 states and 52112 transitions. [2022-01-11 07:08:06,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-01-11 07:08:06,898 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:08:06,898 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:06,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-11 07:08:06,899 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:08:06,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:08:06,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1556403527, now seen corresponding path program 1 times [2022-01-11 07:08:06,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:08:06,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374175366] [2022-01-11 07:08:06,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:08:06,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:08:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:08:06,971 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 07:08:06,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:08:06,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374175366] [2022-01-11 07:08:06,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374175366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:08:06,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:08:06,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:08:06,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736520748] [2022-01-11 07:08:06,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:08:06,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:08:06,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:08:06,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:08:06,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:08:06,973 INFO L87 Difference]: Start difference. First operand 40351 states and 52112 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)