/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_label42+token_ring.12.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 07:04:10,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 07:04:10,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 07:04:10,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 07:04:10,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 07:04:10,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 07:04:10,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 07:04:10,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 07:04:10,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 07:04:10,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 07:04:10,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 07:04:10,283 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 07:04:10,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 07:04:10,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 07:04:10,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 07:04:10,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 07:04:10,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 07:04:10,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 07:04:10,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 07:04:10,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 07:04:10,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 07:04:10,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 07:04:10,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 07:04:10,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 07:04:10,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 07:04:10,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 07:04:10,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 07:04:10,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 07:04:10,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 07:04:10,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 07:04:10,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 07:04:10,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 07:04:10,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 07:04:10,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 07:04:10,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 07:04:10,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 07:04:10,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 07:04:10,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 07:04:10,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 07:04:10,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 07:04:10,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 07:04:10,309 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 07:04:10,326 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 07:04:10,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 07:04:10,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 07:04:10,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 07:04:10,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 07:04:10,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 07:04:10,328 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 07:04:10,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 07:04:10,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 07:04:10,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 07:04:10,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 07:04:10,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 07:04:10,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 07:04:10,328 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 07:04:10,328 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 07:04:10,329 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 07:04:10,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 07:04:10,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 07:04:10,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 07:04:10,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 07:04:10,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 07:04:10,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:04:10,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 07:04:10,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 07:04:10,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 07:04:10,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 07:04:10,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 07:04:10,330 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 07:04:10,330 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 07:04:10,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 07:04:10,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 07:04:10,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 07:04:10,331 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 07:04:10,331 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 07:04:10,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 07:04:10,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 07:04:10,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 07:04:10,528 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 07:04:10,529 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 07:04:10,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label42+token_ring.12.cil-1.c [2022-01-11 07:04:10,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f32cb6899/46b3428b8b0a42038e3b23b04fb27809/FLAG11aff9a46 [2022-01-11 07:04:11,281 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 07:04:11,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.12.cil-1.c [2022-01-11 07:04:11,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f32cb6899/46b3428b8b0a42038e3b23b04fb27809/FLAG11aff9a46 [2022-01-11 07:04:11,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f32cb6899/46b3428b8b0a42038e3b23b04fb27809 [2022-01-11 07:04:11,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 07:04:11,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 07:04:11,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 07:04:11,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 07:04:11,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 07:04:11,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:04:11" (1/1) ... [2022-01-11 07:04:11,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@150813af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:04:11, skipping insertion in model container [2022-01-11 07:04:11,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:04:11" (1/1) ... [2022-01-11 07:04:11,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 07:04:11,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 07:04:13,044 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_label42+token_ring.12.cil-1.c[378560,378573] [2022-01-11 07:04:13,065 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_label42+token_ring.12.cil-1.c[383339,383352] [2022-01-11 07:04:13,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:04:13,345 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 07:04:13,965 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_label42+token_ring.12.cil-1.c[378560,378573] [2022-01-11 07:04:13,972 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_label42+token_ring.12.cil-1.c[383339,383352] [2022-01-11 07:04:14,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:04:14,046 INFO L208 MainTranslator]: Completed translation [2022-01-11 07:04:14,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:04:14 WrapperNode [2022-01-11 07:04:14,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 07:04:14,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 07:04:14,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 07:04:14,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 07:04:14,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:04:14" (1/1) ... [2022-01-11 07:04:14,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:04:14" (1/1) ... [2022-01-11 07:04:14,606 INFO L137 Inliner]: procedures = 69, calls = 78, calls flagged for inlining = 73, calls inlined = 280, statements flattened = 16481 [2022-01-11 07:04:14,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 07:04:14,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 07:04:14,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 07:04:14,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 07:04:14,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:04:14" (1/1) ... [2022-01-11 07:04:14,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:04:14" (1/1) ... [2022-01-11 07:04:14,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:04:14" (1/1) ... [2022-01-11 07:04:14,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:04:14" (1/1) ... [2022-01-11 07:04:14,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:04:14" (1/1) ... [2022-01-11 07:04:14,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:04:14" (1/1) ... [2022-01-11 07:04:15,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:04:14" (1/1) ... [2022-01-11 07:04:15,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 07:04:15,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 07:04:15,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 07:04:15,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 07:04:15,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:04:14" (1/1) ... [2022-01-11 07:04:15,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:04:15,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:04:15,077 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 07:04:15,103 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 07:04:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 07:04:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 07:04:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 07:04:15,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 07:04:15,265 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 07:04:15,266 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 07:04:22,742 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 07:04:22,774 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 07:04:22,774 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-01-11 07:04:22,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:04:22 BoogieIcfgContainer [2022-01-11 07:04:22,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 07:04:22,781 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 07:04:22,781 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 07:04:22,782 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 07:04:22,784 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:04:22" (1/1) ... [2022-01-11 07:04:24,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:04:24 BasicIcfg [2022-01-11 07:04:24,317 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 07:04:24,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 07:04:24,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 07:04:24,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 07:04:24,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 07:04:11" (1/4) ... [2022-01-11 07:04:24,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688d4020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:04:24, skipping insertion in model container [2022-01-11 07:04:24,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:04:14" (2/4) ... [2022-01-11 07:04:24,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688d4020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:04:24, skipping insertion in model container [2022-01-11 07:04:24,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:04:22" (3/4) ... [2022-01-11 07:04:24,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688d4020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 07:04:24, skipping insertion in model container [2022-01-11 07:04:24,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:04:24" (4/4) ... [2022-01-11 07:04:24,323 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.12.cil-1.cTransformedIcfg [2022-01-11 07:04:24,327 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 07:04:24,327 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 07:04:24,378 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 07:04:24,383 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 07:04:24,383 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 07:04:24,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 3983 states, 3979 states have (on average 1.7041970344307615) internal successors, (6781), 3982 states have internal predecessors, (6781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:24,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:24,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:24,447 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:24,447 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:24,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:24,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1071510294, now seen corresponding path program 1 times [2022-01-11 07:04:24,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:24,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25980470] [2022-01-11 07:04:24,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:24,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:24,682 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 07:04:24,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:24,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25980470] [2022-01-11 07:04:24,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25980470] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:24,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:24,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:04:24,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428786442] [2022-01-11 07:04:24,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:24,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:24,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:24,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:24,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:24,711 INFO L87 Difference]: Start difference. First operand has 3983 states, 3979 states have (on average 1.7041970344307615) internal successors, (6781), 3982 states have internal predecessors, (6781), 0 states have call successors, (0), 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 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:24,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:24,909 INFO L93 Difference]: Finished difference Result 7954 states and 13540 transitions. [2022-01-11 07:04:24,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:24,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:24,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:24,943 INFO L225 Difference]: With dead ends: 7954 [2022-01-11 07:04:24,943 INFO L226 Difference]: Without dead ends: 3915 [2022-01-11 07:04:24,958 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 07:04:24,961 INFO L933 BasicCegarLoop]: 6684 mSDtfsCounter, 2652 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2652 SdHoareTripleChecker+Valid, 10706 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 07:04:24,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2652 Valid, 10706 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:24,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3915 states. [2022-01-11 07:04:25,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3915 to 3915. [2022-01-11 07:04:25,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3915 states, 3912 states have (on average 1.69120654396728) internal successors, (6616), 3914 states have internal predecessors, (6616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:25,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3915 states to 3915 states and 6616 transitions. [2022-01-11 07:04:25,105 INFO L78 Accepts]: Start accepts. Automaton has 3915 states and 6616 transitions. Word has length 165 [2022-01-11 07:04:25,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:25,106 INFO L470 AbstractCegarLoop]: Abstraction has 3915 states and 6616 transitions. [2022-01-11 07:04:25,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:25,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3915 states and 6616 transitions. [2022-01-11 07:04:25,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:25,114 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:25,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:25,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 07:04:25,115 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:25,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:25,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1774106133, now seen corresponding path program 1 times [2022-01-11 07:04:25,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:25,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314217336] [2022-01-11 07:04:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:25,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:25,268 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 07:04:25,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:25,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314217336] [2022-01-11 07:04:25,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314217336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:25,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:25,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:25,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353125779] [2022-01-11 07:04:25,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:25,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:25,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:25,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:25,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:25,270 INFO L87 Difference]: Start difference. First operand 3915 states and 6616 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:25,400 INFO L93 Difference]: Finished difference Result 7228 states and 11501 transitions. [2022-01-11 07:04:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:25,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:25,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:25,418 INFO L225 Difference]: With dead ends: 7228 [2022-01-11 07:04:25,419 INFO L226 Difference]: Without dead ends: 5453 [2022-01-11 07:04:25,424 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 07:04:25,425 INFO L933 BasicCegarLoop]: 6610 mSDtfsCounter, 6459 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6459 SdHoareTripleChecker+Valid, 8995 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 07:04:25,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6459 Valid, 8995 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:25,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5453 states. [2022-01-11 07:04:25,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5453 to 5449. [2022-01-11 07:04:25,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.6285347043701799) internal successors, (8869), 5448 states have internal predecessors, (8869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:25,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8869 transitions. [2022-01-11 07:04:25,541 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8869 transitions. Word has length 165 [2022-01-11 07:04:25,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:25,542 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8869 transitions. [2022-01-11 07:04:25,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:25,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8869 transitions. [2022-01-11 07:04:25,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:25,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:25,544 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:25,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 07:04:25,544 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:25,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:25,544 INFO L85 PathProgramCache]: Analyzing trace with hash -823143627, now seen corresponding path program 1 times [2022-01-11 07:04:25,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:25,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207474113] [2022-01-11 07:04:25,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:25,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:25,630 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 07:04:25,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:25,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207474113] [2022-01-11 07:04:25,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207474113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:25,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:25,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:25,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435710004] [2022-01-11 07:04:25,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:25,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:25,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:25,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:25,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:25,632 INFO L87 Difference]: Start difference. First operand 5449 states and 8869 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:25,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:25,738 INFO L93 Difference]: Finished difference Result 8757 states and 13747 transitions. [2022-01-11 07:04:25,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:25,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:25,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:25,755 INFO L225 Difference]: With dead ends: 8757 [2022-01-11 07:04:25,755 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:25,764 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 07:04:25,767 INFO L933 BasicCegarLoop]: 6604 mSDtfsCounter, 6589 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6589 SdHoareTripleChecker+Valid, 6604 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 07:04:25,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6589 Valid, 6604 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:25,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:25,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:25,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.627065736320235) internal successors, (8861), 5448 states have internal predecessors, (8861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:26,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8861 transitions. [2022-01-11 07:04:26,010 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8861 transitions. Word has length 165 [2022-01-11 07:04:26,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:26,010 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8861 transitions. [2022-01-11 07:04:26,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:26,011 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8861 transitions. [2022-01-11 07:04:26,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:26,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:26,012 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:26,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 07:04:26,013 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:26,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:26,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1586926101, now seen corresponding path program 1 times [2022-01-11 07:04:26,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:26,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238826519] [2022-01-11 07:04:26,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:26,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:26,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:04:26,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:26,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238826519] [2022-01-11 07:04:26,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238826519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:26,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:26,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:26,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785659183] [2022-01-11 07:04:26,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:26,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:26,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:26,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:26,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:26,081 INFO L87 Difference]: Start difference. First operand 5449 states and 8861 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:26,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:26,182 INFO L93 Difference]: Finished difference Result 8756 states and 13730 transitions. [2022-01-11 07:04:26,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:26,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:26,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:26,199 INFO L225 Difference]: With dead ends: 8756 [2022-01-11 07:04:26,200 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:26,207 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 07:04:26,212 INFO L933 BasicCegarLoop]: 6599 mSDtfsCounter, 6583 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6583 SdHoareTripleChecker+Valid, 6599 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 07:04:26,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6583 Valid, 6599 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:26,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:26,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:26,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.62559676827029) internal successors, (8853), 5448 states have internal predecessors, (8853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:26,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8853 transitions. [2022-01-11 07:04:26,330 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8853 transitions. Word has length 165 [2022-01-11 07:04:26,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:26,330 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8853 transitions. [2022-01-11 07:04:26,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:26,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8853 transitions. [2022-01-11 07:04:26,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:26,332 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:26,332 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:26,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 07:04:26,332 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:26,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:26,333 INFO L85 PathProgramCache]: Analyzing trace with hash 833386293, now seen corresponding path program 1 times [2022-01-11 07:04:26,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:26,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342412675] [2022-01-11 07:04:26,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:26,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:26,404 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 07:04:26,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:26,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342412675] [2022-01-11 07:04:26,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342412675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:26,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:26,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:26,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871676873] [2022-01-11 07:04:26,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:26,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:26,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:26,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:26,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:26,406 INFO L87 Difference]: Start difference. First operand 5449 states and 8853 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:26,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:26,515 INFO L93 Difference]: Finished difference Result 8755 states and 13713 transitions. [2022-01-11 07:04:26,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:26,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:26,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:26,541 INFO L225 Difference]: With dead ends: 8755 [2022-01-11 07:04:26,541 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:26,547 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 07:04:26,548 INFO L933 BasicCegarLoop]: 6594 mSDtfsCounter, 6577 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6577 SdHoareTripleChecker+Valid, 6594 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 07:04:26,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6577 Valid, 6594 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:26,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:26,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:26,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.6241278002203452) internal successors, (8845), 5448 states have internal predecessors, (8845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:26,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8845 transitions. [2022-01-11 07:04:26,664 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8845 transitions. Word has length 165 [2022-01-11 07:04:26,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:26,666 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8845 transitions. [2022-01-11 07:04:26,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:26,670 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8845 transitions. [2022-01-11 07:04:26,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:26,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:26,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:26,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 07:04:26,673 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:26,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:26,673 INFO L85 PathProgramCache]: Analyzing trace with hash 531983893, now seen corresponding path program 1 times [2022-01-11 07:04:26,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:26,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452048750] [2022-01-11 07:04:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:26,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:26,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:04:26,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:26,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452048750] [2022-01-11 07:04:26,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452048750] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:26,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:26,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:26,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464172214] [2022-01-11 07:04:26,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:26,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:26,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:26,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:26,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:26,723 INFO L87 Difference]: Start difference. First operand 5449 states and 8845 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:26,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:26,932 INFO L93 Difference]: Finished difference Result 8754 states and 13696 transitions. [2022-01-11 07:04:26,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:26,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:26,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:26,941 INFO L225 Difference]: With dead ends: 8754 [2022-01-11 07:04:26,941 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:26,946 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 07:04:26,947 INFO L933 BasicCegarLoop]: 6589 mSDtfsCounter, 6571 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6571 SdHoareTripleChecker+Valid, 6589 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 07:04:26,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6571 Valid, 6589 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:26,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:27,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:27,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.6226588321704003) internal successors, (8837), 5448 states have internal predecessors, (8837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:27,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8837 transitions. [2022-01-11 07:04:27,086 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8837 transitions. Word has length 165 [2022-01-11 07:04:27,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:27,086 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8837 transitions. [2022-01-11 07:04:27,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:27,087 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8837 transitions. [2022-01-11 07:04:27,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:27,088 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:27,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:27,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 07:04:27,088 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:27,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:27,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1555948747, now seen corresponding path program 1 times [2022-01-11 07:04:27,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:27,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899535528] [2022-01-11 07:04:27,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:27,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:27,134 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 07:04:27,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:27,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899535528] [2022-01-11 07:04:27,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899535528] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:27,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:27,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:27,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787666125] [2022-01-11 07:04:27,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:27,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:27,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:27,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:27,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:27,136 INFO L87 Difference]: Start difference. First operand 5449 states and 8837 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:27,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:27,282 INFO L93 Difference]: Finished difference Result 8753 states and 13679 transitions. [2022-01-11 07:04:27,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:27,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:27,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:27,292 INFO L225 Difference]: With dead ends: 8753 [2022-01-11 07:04:27,292 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:27,297 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 07:04:27,298 INFO L933 BasicCegarLoop]: 6584 mSDtfsCounter, 6565 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6565 SdHoareTripleChecker+Valid, 6584 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 07:04:27,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6565 Valid, 6584 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:27,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:27,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:27,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.6211898641204554) internal successors, (8829), 5448 states have internal predecessors, (8829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:27,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8829 transitions. [2022-01-11 07:04:27,438 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8829 transitions. Word has length 165 [2022-01-11 07:04:27,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:27,438 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8829 transitions. [2022-01-11 07:04:27,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:27,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8829 transitions. [2022-01-11 07:04:27,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:27,440 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:27,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:27,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 07:04:27,440 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:27,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:27,441 INFO L85 PathProgramCache]: Analyzing trace with hash 316361237, now seen corresponding path program 1 times [2022-01-11 07:04:27,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:27,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89945155] [2022-01-11 07:04:27,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:27,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:27,481 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 07:04:27,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:27,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89945155] [2022-01-11 07:04:27,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89945155] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:27,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:27,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:27,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271693535] [2022-01-11 07:04:27,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:27,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:27,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:27,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:27,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:27,483 INFO L87 Difference]: Start difference. First operand 5449 states and 8829 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:27,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:27,611 INFO L93 Difference]: Finished difference Result 8752 states and 13662 transitions. [2022-01-11 07:04:27,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:27,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:27,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:27,622 INFO L225 Difference]: With dead ends: 8752 [2022-01-11 07:04:27,622 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:27,629 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 07:04:27,629 INFO L933 BasicCegarLoop]: 6579 mSDtfsCounter, 6559 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6559 SdHoareTripleChecker+Valid, 6579 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 07:04:27,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6559 Valid, 6579 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:27,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:27,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:27,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.6197208960705105) internal successors, (8821), 5448 states have internal predecessors, (8821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:27,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8821 transitions. [2022-01-11 07:04:27,795 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8821 transitions. Word has length 165 [2022-01-11 07:04:27,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:27,796 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8821 transitions. [2022-01-11 07:04:27,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:27,796 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8821 transitions. [2022-01-11 07:04:27,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:27,797 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:27,797 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:27,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 07:04:27,798 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:27,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:27,798 INFO L85 PathProgramCache]: Analyzing trace with hash 99663669, now seen corresponding path program 1 times [2022-01-11 07:04:27,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:27,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652016066] [2022-01-11 07:04:27,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:27,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:27,863 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 07:04:27,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:27,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652016066] [2022-01-11 07:04:27,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652016066] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:27,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:27,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:27,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080509762] [2022-01-11 07:04:27,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:27,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:27,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:27,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:27,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:27,865 INFO L87 Difference]: Start difference. First operand 5449 states and 8821 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:27,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:27,982 INFO L93 Difference]: Finished difference Result 8751 states and 13645 transitions. [2022-01-11 07:04:27,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:27,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:27,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:27,991 INFO L225 Difference]: With dead ends: 8751 [2022-01-11 07:04:27,991 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:27,997 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 07:04:27,999 INFO L933 BasicCegarLoop]: 6574 mSDtfsCounter, 6553 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6553 SdHoareTripleChecker+Valid, 6574 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 07:04:27,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6553 Valid, 6574 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:28,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:28,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:28,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.6182519280205656) internal successors, (8813), 5448 states have internal predecessors, (8813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:28,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8813 transitions. [2022-01-11 07:04:28,122 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8813 transitions. Word has length 165 [2022-01-11 07:04:28,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:28,122 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8813 transitions. [2022-01-11 07:04:28,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:28,125 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8813 transitions. [2022-01-11 07:04:28,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:28,126 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:28,127 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:28,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 07:04:28,127 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:28,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:28,127 INFO L85 PathProgramCache]: Analyzing trace with hash 231220757, now seen corresponding path program 1 times [2022-01-11 07:04:28,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:28,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106901941] [2022-01-11 07:04:28,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:28,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:28,167 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 07:04:28,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:28,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106901941] [2022-01-11 07:04:28,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106901941] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:28,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:28,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:28,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67571239] [2022-01-11 07:04:28,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:28,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:28,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:28,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:28,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:28,169 INFO L87 Difference]: Start difference. First operand 5449 states and 8813 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:28,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:28,279 INFO L93 Difference]: Finished difference Result 8750 states and 13628 transitions. [2022-01-11 07:04:28,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:28,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:28,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:28,336 INFO L225 Difference]: With dead ends: 8750 [2022-01-11 07:04:28,336 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:28,340 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 07:04:28,341 INFO L933 BasicCegarLoop]: 6569 mSDtfsCounter, 6547 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6547 SdHoareTripleChecker+Valid, 6569 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 07:04:28,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6547 Valid, 6569 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:28,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:28,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:28,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.6167829599706207) internal successors, (8805), 5448 states have internal predecessors, (8805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:28,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8805 transitions. [2022-01-11 07:04:28,457 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8805 transitions. Word has length 165 [2022-01-11 07:04:28,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:28,457 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8805 transitions. [2022-01-11 07:04:28,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:28,457 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8805 transitions. [2022-01-11 07:04:28,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:28,458 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:28,459 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:28,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 07:04:28,459 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:28,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:28,460 INFO L85 PathProgramCache]: Analyzing trace with hash -872914123, now seen corresponding path program 1 times [2022-01-11 07:04:28,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:28,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515705310] [2022-01-11 07:04:28,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:28,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:28,500 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 07:04:28,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:28,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515705310] [2022-01-11 07:04:28,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515705310] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:28,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:28,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:28,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420549173] [2022-01-11 07:04:28,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:28,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:28,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:28,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:28,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:28,502 INFO L87 Difference]: Start difference. First operand 5449 states and 8805 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:28,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:28,611 INFO L93 Difference]: Finished difference Result 8749 states and 13611 transitions. [2022-01-11 07:04:28,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:28,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:28,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:28,621 INFO L225 Difference]: With dead ends: 8749 [2022-01-11 07:04:28,621 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:28,626 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 07:04:28,628 INFO L933 BasicCegarLoop]: 6564 mSDtfsCounter, 6541 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6541 SdHoareTripleChecker+Valid, 6564 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 07:04:28,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6541 Valid, 6564 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:28,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:28,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:28,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.6153139919206758) internal successors, (8797), 5448 states have internal predecessors, (8797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:28,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8797 transitions. [2022-01-11 07:04:28,754 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8797 transitions. Word has length 165 [2022-01-11 07:04:28,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:28,754 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8797 transitions. [2022-01-11 07:04:28,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:28,754 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8797 transitions. [2022-01-11 07:04:28,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:28,756 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:28,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:28,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 07:04:28,756 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:28,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:28,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1446773269, now seen corresponding path program 1 times [2022-01-11 07:04:28,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:28,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558412592] [2022-01-11 07:04:28,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:28,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:28,793 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 07:04:28,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:28,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558412592] [2022-01-11 07:04:28,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558412592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:28,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:28,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:28,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561242729] [2022-01-11 07:04:28,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:28,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:28,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:28,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:28,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:28,795 INFO L87 Difference]: Start difference. First operand 5449 states and 8797 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:28,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:28,918 INFO L93 Difference]: Finished difference Result 8748 states and 13594 transitions. [2022-01-11 07:04:28,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:28,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:28,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:28,928 INFO L225 Difference]: With dead ends: 8748 [2022-01-11 07:04:28,928 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:28,934 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 07:04:28,935 INFO L933 BasicCegarLoop]: 6559 mSDtfsCounter, 6535 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6535 SdHoareTripleChecker+Valid, 6559 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 07:04:28,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6535 Valid, 6559 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:28,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:29,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:29,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.613845023870731) internal successors, (8789), 5448 states have internal predecessors, (8789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:29,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8789 transitions. [2022-01-11 07:04:29,145 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8789 transitions. Word has length 165 [2022-01-11 07:04:29,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:29,145 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8789 transitions. [2022-01-11 07:04:29,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:29,146 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8789 transitions. [2022-01-11 07:04:29,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:29,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:29,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:29,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 07:04:29,148 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:29,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:29,149 INFO L85 PathProgramCache]: Analyzing trace with hash -140966091, now seen corresponding path program 1 times [2022-01-11 07:04:29,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:29,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782641289] [2022-01-11 07:04:29,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:29,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:29,208 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 07:04:29,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:29,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782641289] [2022-01-11 07:04:29,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782641289] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:29,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:29,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:29,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34585805] [2022-01-11 07:04:29,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:29,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:29,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:29,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:29,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:29,210 INFO L87 Difference]: Start difference. First operand 5449 states and 8789 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:29,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:29,415 INFO L93 Difference]: Finished difference Result 8746 states and 13575 transitions. [2022-01-11 07:04:29,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:29,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:29,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:29,425 INFO L225 Difference]: With dead ends: 8746 [2022-01-11 07:04:29,425 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:29,430 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 07:04:29,431 INFO L933 BasicCegarLoop]: 6554 mSDtfsCounter, 6528 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6528 SdHoareTripleChecker+Valid, 6554 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 07:04:29,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6528 Valid, 6554 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:29,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:29,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:29,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.6123760558207858) internal successors, (8781), 5448 states have internal predecessors, (8781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:29,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8781 transitions. [2022-01-11 07:04:29,593 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8781 transitions. Word has length 165 [2022-01-11 07:04:29,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:29,593 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8781 transitions. [2022-01-11 07:04:29,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:29,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8781 transitions. [2022-01-11 07:04:29,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:29,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:29,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:29,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 07:04:29,595 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:29,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:29,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1890899029, now seen corresponding path program 1 times [2022-01-11 07:04:29,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:29,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993228954] [2022-01-11 07:04:29,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:29,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:29,646 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 07:04:29,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:29,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993228954] [2022-01-11 07:04:29,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993228954] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:29,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:29,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:29,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610734457] [2022-01-11 07:04:29,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:29,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:29,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:29,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:29,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:29,648 INFO L87 Difference]: Start difference. First operand 5449 states and 8781 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:29,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:29,823 INFO L93 Difference]: Finished difference Result 8745 states and 13558 transitions. [2022-01-11 07:04:29,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:29,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:29,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:29,833 INFO L225 Difference]: With dead ends: 8745 [2022-01-11 07:04:29,833 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:29,840 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 07:04:29,840 INFO L933 BasicCegarLoop]: 6519 mSDtfsCounter, 6375 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6375 SdHoareTripleChecker+Valid, 6647 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:29,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6375 Valid, 6647 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:29,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:29,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:29,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.6057656995960339) internal successors, (8745), 5448 states have internal predecessors, (8745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:30,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8745 transitions. [2022-01-11 07:04:30,005 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8745 transitions. Word has length 165 [2022-01-11 07:04:30,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:30,005 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8745 transitions. [2022-01-11 07:04:30,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:30,005 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8745 transitions. [2022-01-11 07:04:30,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:30,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:30,007 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:30,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 07:04:30,007 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:30,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:30,007 INFO L85 PathProgramCache]: Analyzing trace with hash -665666124, now seen corresponding path program 1 times [2022-01-11 07:04:30,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:30,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604896931] [2022-01-11 07:04:30,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:30,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:30,047 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 07:04:30,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:30,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604896931] [2022-01-11 07:04:30,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604896931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:30,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:30,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:30,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257812251] [2022-01-11 07:04:30,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:30,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:30,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:30,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:30,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:30,049 INFO L87 Difference]: Start difference. First operand 5449 states and 8745 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:30,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:30,188 INFO L93 Difference]: Finished difference Result 8744 states and 13485 transitions. [2022-01-11 07:04:30,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:30,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:30,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:30,199 INFO L225 Difference]: With dead ends: 8744 [2022-01-11 07:04:30,199 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:30,205 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 07:04:30,206 INFO L933 BasicCegarLoop]: 6499 mSDtfsCounter, 6355 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6355 SdHoareTripleChecker+Valid, 6626 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:30,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6355 Valid, 6626 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:30,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:30,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:30,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.5991553433712817) internal successors, (8709), 5448 states have internal predecessors, (8709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:30,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8709 transitions. [2022-01-11 07:04:30,383 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8709 transitions. Word has length 165 [2022-01-11 07:04:30,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:30,384 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8709 transitions. [2022-01-11 07:04:30,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:30,384 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8709 transitions. [2022-01-11 07:04:30,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:30,386 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:30,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:30,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 07:04:30,386 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:30,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:30,387 INFO L85 PathProgramCache]: Analyzing trace with hash -372197229, now seen corresponding path program 1 times [2022-01-11 07:04:30,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:30,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294812873] [2022-01-11 07:04:30,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:30,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:30,431 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 07:04:30,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:30,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294812873] [2022-01-11 07:04:30,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294812873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:30,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:30,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:30,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882502255] [2022-01-11 07:04:30,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:30,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:30,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:30,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:30,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:30,435 INFO L87 Difference]: Start difference. First operand 5449 states and 8709 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:30,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:30,622 INFO L93 Difference]: Finished difference Result 8743 states and 13412 transitions. [2022-01-11 07:04:30,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:30,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:30,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:30,631 INFO L225 Difference]: With dead ends: 8743 [2022-01-11 07:04:30,631 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:30,636 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 07:04:30,636 INFO L933 BasicCegarLoop]: 6479 mSDtfsCounter, 6335 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6335 SdHoareTripleChecker+Valid, 6605 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:30,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6335 Valid, 6605 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:30,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:30,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:30,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.5925449871465296) internal successors, (8673), 5448 states have internal predecessors, (8673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:30,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8673 transitions. [2022-01-11 07:04:30,768 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8673 transitions. Word has length 165 [2022-01-11 07:04:30,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:30,769 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8673 transitions. [2022-01-11 07:04:30,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:30,769 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8673 transitions. [2022-01-11 07:04:30,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:30,770 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:30,770 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:30,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 07:04:30,770 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:30,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:30,771 INFO L85 PathProgramCache]: Analyzing trace with hash -191361709, now seen corresponding path program 1 times [2022-01-11 07:04:30,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:30,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723116392] [2022-01-11 07:04:30,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:30,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:30,806 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 07:04:30,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:30,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723116392] [2022-01-11 07:04:30,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723116392] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:30,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:30,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:30,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378634792] [2022-01-11 07:04:30,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:30,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:30,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:30,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:30,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:30,807 INFO L87 Difference]: Start difference. First operand 5449 states and 8673 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:30,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:30,965 INFO L93 Difference]: Finished difference Result 8742 states and 13339 transitions. [2022-01-11 07:04:30,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:30,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:30,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:30,973 INFO L225 Difference]: With dead ends: 8742 [2022-01-11 07:04:30,974 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:30,978 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 07:04:30,980 INFO L933 BasicCegarLoop]: 6459 mSDtfsCounter, 6315 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6315 SdHoareTripleChecker+Valid, 6584 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:30,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6315 Valid, 6584 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:30,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:31,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:31,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.5859346309217774) internal successors, (8637), 5448 states have internal predecessors, (8637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:31,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8637 transitions. [2022-01-11 07:04:31,124 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8637 transitions. Word has length 165 [2022-01-11 07:04:31,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:31,125 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8637 transitions. [2022-01-11 07:04:31,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:31,125 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8637 transitions. [2022-01-11 07:04:31,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:31,126 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:31,126 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:31,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 07:04:31,127 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:31,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:31,128 INFO L85 PathProgramCache]: Analyzing trace with hash -687065422, now seen corresponding path program 1 times [2022-01-11 07:04:31,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:31,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964953193] [2022-01-11 07:04:31,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:31,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:31,164 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 07:04:31,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:31,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964953193] [2022-01-11 07:04:31,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964953193] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:31,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:31,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:31,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408117750] [2022-01-11 07:04:31,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:31,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:31,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:31,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:31,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:31,165 INFO L87 Difference]: Start difference. First operand 5449 states and 8637 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:31,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:31,313 INFO L93 Difference]: Finished difference Result 8741 states and 13266 transitions. [2022-01-11 07:04:31,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:31,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:31,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:31,321 INFO L225 Difference]: With dead ends: 8741 [2022-01-11 07:04:31,321 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:31,325 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 07:04:31,325 INFO L933 BasicCegarLoop]: 6439 mSDtfsCounter, 6295 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6295 SdHoareTripleChecker+Valid, 6563 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:31,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6295 Valid, 6563 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:31,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:31,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:31,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.5793242746970253) internal successors, (8601), 5448 states have internal predecessors, (8601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:31,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8601 transitions. [2022-01-11 07:04:31,464 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8601 transitions. Word has length 165 [2022-01-11 07:04:31,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:31,464 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8601 transitions. [2022-01-11 07:04:31,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:31,464 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8601 transitions. [2022-01-11 07:04:31,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:31,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:31,465 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:31,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 07:04:31,466 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:31,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:31,466 INFO L85 PathProgramCache]: Analyzing trace with hash 2123586833, now seen corresponding path program 1 times [2022-01-11 07:04:31,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:31,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572278157] [2022-01-11 07:04:31,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:31,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:31,508 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 07:04:31,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:31,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572278157] [2022-01-11 07:04:31,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572278157] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:31,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:31,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:31,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572564260] [2022-01-11 07:04:31,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:31,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:31,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:31,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:31,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:31,510 INFO L87 Difference]: Start difference. First operand 5449 states and 8601 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:31,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:31,670 INFO L93 Difference]: Finished difference Result 8740 states and 13193 transitions. [2022-01-11 07:04:31,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:31,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:31,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:31,678 INFO L225 Difference]: With dead ends: 8740 [2022-01-11 07:04:31,678 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:31,683 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 07:04:31,683 INFO L933 BasicCegarLoop]: 6419 mSDtfsCounter, 6275 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6275 SdHoareTripleChecker+Valid, 6542 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:31,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6275 Valid, 6542 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:31,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:31,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:31,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.5727139184722732) internal successors, (8565), 5448 states have internal predecessors, (8565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:31,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8565 transitions. [2022-01-11 07:04:31,832 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8565 transitions. Word has length 165 [2022-01-11 07:04:31,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:31,832 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8565 transitions. [2022-01-11 07:04:31,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:31,832 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8565 transitions. [2022-01-11 07:04:31,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:31,833 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:31,834 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:31,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 07:04:31,834 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:31,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:31,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1695905008, now seen corresponding path program 1 times [2022-01-11 07:04:31,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:31,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458437292] [2022-01-11 07:04:31,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:31,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:31,886 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 07:04:31,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:31,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458437292] [2022-01-11 07:04:31,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458437292] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:31,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:31,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:31,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001898675] [2022-01-11 07:04:31,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:31,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:31,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:31,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:31,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:31,888 INFO L87 Difference]: Start difference. First operand 5449 states and 8565 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:32,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:32,081 INFO L93 Difference]: Finished difference Result 8739 states and 13120 transitions. [2022-01-11 07:04:32,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:32,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:32,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:32,088 INFO L225 Difference]: With dead ends: 8739 [2022-01-11 07:04:32,088 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:32,092 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 07:04:32,093 INFO L933 BasicCegarLoop]: 6399 mSDtfsCounter, 6255 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6255 SdHoareTripleChecker+Valid, 6521 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:32,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6255 Valid, 6521 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:32,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:32,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:32,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.566103562247521) internal successors, (8529), 5448 states have internal predecessors, (8529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:32,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8529 transitions. [2022-01-11 07:04:32,254 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8529 transitions. Word has length 165 [2022-01-11 07:04:32,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:32,254 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8529 transitions. [2022-01-11 07:04:32,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:32,254 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8529 transitions. [2022-01-11 07:04:32,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:32,255 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:32,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:32,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 07:04:32,256 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:32,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:32,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1669781967, now seen corresponding path program 1 times [2022-01-11 07:04:32,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:32,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687512081] [2022-01-11 07:04:32,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:32,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:32,293 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 07:04:32,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:32,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687512081] [2022-01-11 07:04:32,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687512081] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:32,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:32,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:32,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168515128] [2022-01-11 07:04:32,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:32,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:32,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:32,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:32,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:32,295 INFO L87 Difference]: Start difference. First operand 5449 states and 8529 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:32,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:32,476 INFO L93 Difference]: Finished difference Result 8738 states and 13047 transitions. [2022-01-11 07:04:32,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:32,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:32,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:32,484 INFO L225 Difference]: With dead ends: 8738 [2022-01-11 07:04:32,484 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:32,489 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 07:04:32,490 INFO L933 BasicCegarLoop]: 6379 mSDtfsCounter, 6235 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6235 SdHoareTripleChecker+Valid, 6500 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:32,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6235 Valid, 6500 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:32,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:32,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:32,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.559493206022769) internal successors, (8493), 5448 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:32,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8493 transitions. [2022-01-11 07:04:32,634 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8493 transitions. Word has length 165 [2022-01-11 07:04:32,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:32,635 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8493 transitions. [2022-01-11 07:04:32,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:32,635 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8493 transitions. [2022-01-11 07:04:32,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:32,636 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:32,636 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:32,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 07:04:32,636 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:32,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:32,636 INFO L85 PathProgramCache]: Analyzing trace with hash -397500370, now seen corresponding path program 1 times [2022-01-11 07:04:32,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:32,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613527118] [2022-01-11 07:04:32,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:32,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:32,668 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 07:04:32,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:32,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613527118] [2022-01-11 07:04:32,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613527118] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:32,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:32,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:32,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810190492] [2022-01-11 07:04:32,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:32,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:32,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:32,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:32,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:32,670 INFO L87 Difference]: Start difference. First operand 5449 states and 8493 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:32,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:32,829 INFO L93 Difference]: Finished difference Result 8737 states and 12974 transitions. [2022-01-11 07:04:32,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:32,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:32,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:32,836 INFO L225 Difference]: With dead ends: 8737 [2022-01-11 07:04:32,836 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:32,841 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 07:04:32,842 INFO L933 BasicCegarLoop]: 6359 mSDtfsCounter, 6215 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6215 SdHoareTripleChecker+Valid, 6479 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:32,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6215 Valid, 6479 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:32,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:32,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:32,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.552882849798017) internal successors, (8457), 5448 states have internal predecessors, (8457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:32,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8457 transitions. [2022-01-11 07:04:32,991 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8457 transitions. Word has length 165 [2022-01-11 07:04:32,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:32,991 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8457 transitions. [2022-01-11 07:04:32,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:32,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8457 transitions. [2022-01-11 07:04:32,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:32,992 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:32,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:32,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 07:04:32,992 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:32,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:32,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1882324083, now seen corresponding path program 1 times [2022-01-11 07:04:32,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:32,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526191191] [2022-01-11 07:04:32,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:32,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:33,025 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 07:04:33,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:33,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526191191] [2022-01-11 07:04:33,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526191191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:33,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:33,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:33,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869841744] [2022-01-11 07:04:33,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:33,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:33,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:33,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:33,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:33,026 INFO L87 Difference]: Start difference. First operand 5449 states and 8457 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:33,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:33,222 INFO L93 Difference]: Finished difference Result 8736 states and 12901 transitions. [2022-01-11 07:04:33,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:33,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:33,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:33,230 INFO L225 Difference]: With dead ends: 8736 [2022-01-11 07:04:33,230 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:33,235 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 07:04:33,235 INFO L933 BasicCegarLoop]: 6339 mSDtfsCounter, 6195 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6195 SdHoareTripleChecker+Valid, 6458 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:33,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6195 Valid, 6458 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:33,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:33,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:33,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.5462724935732648) internal successors, (8421), 5448 states have internal predecessors, (8421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:33,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8421 transitions. [2022-01-11 07:04:33,388 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8421 transitions. Word has length 165 [2022-01-11 07:04:33,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:33,389 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8421 transitions. [2022-01-11 07:04:33,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:33,389 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8421 transitions. [2022-01-11 07:04:33,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:33,390 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:33,390 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:33,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 07:04:33,390 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:33,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:33,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1003276180, now seen corresponding path program 1 times [2022-01-11 07:04:33,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:33,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252786394] [2022-01-11 07:04:33,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:33,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:33,424 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 07:04:33,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:33,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252786394] [2022-01-11 07:04:33,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252786394] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:33,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:33,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:33,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871737305] [2022-01-11 07:04:33,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:33,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:33,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:33,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:33,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:33,427 INFO L87 Difference]: Start difference. First operand 5449 states and 8421 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:33,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:33,618 INFO L93 Difference]: Finished difference Result 8735 states and 12828 transitions. [2022-01-11 07:04:33,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:33,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:33,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:33,624 INFO L225 Difference]: With dead ends: 8735 [2022-01-11 07:04:33,624 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:33,627 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 07:04:33,628 INFO L933 BasicCegarLoop]: 6319 mSDtfsCounter, 6175 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6175 SdHoareTripleChecker+Valid, 6437 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:33,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6175 Valid, 6437 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:33,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:33,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:33,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.5396621373485126) internal successors, (8385), 5448 states have internal predecessors, (8385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:33,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8385 transitions. [2022-01-11 07:04:33,779 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8385 transitions. Word has length 165 [2022-01-11 07:04:33,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:33,779 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8385 transitions. [2022-01-11 07:04:33,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:33,779 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8385 transitions. [2022-01-11 07:04:33,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:33,780 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:33,780 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:33,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 07:04:33,781 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:33,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:33,781 INFO L85 PathProgramCache]: Analyzing trace with hash -855352757, now seen corresponding path program 1 times [2022-01-11 07:04:33,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:33,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115272318] [2022-01-11 07:04:33,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:33,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:33,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:04:33,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:33,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115272318] [2022-01-11 07:04:33,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115272318] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:33,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:33,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:33,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463058985] [2022-01-11 07:04:33,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:33,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:33,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:33,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:33,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:33,820 INFO L87 Difference]: Start difference. First operand 5449 states and 8385 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:33,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:33,996 INFO L93 Difference]: Finished difference Result 8734 states and 12755 transitions. [2022-01-11 07:04:33,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:33,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:33,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:34,004 INFO L225 Difference]: With dead ends: 8734 [2022-01-11 07:04:34,005 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:34,009 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 07:04:34,010 INFO L933 BasicCegarLoop]: 6299 mSDtfsCounter, 6155 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6155 SdHoareTripleChecker+Valid, 6416 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:34,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6155 Valid, 6416 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:34,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:34,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:34,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.5330517811237605) internal successors, (8349), 5448 states have internal predecessors, (8349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:34,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8349 transitions. [2022-01-11 07:04:34,175 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8349 transitions. Word has length 165 [2022-01-11 07:04:34,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:34,175 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8349 transitions. [2022-01-11 07:04:34,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:34,175 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8349 transitions. [2022-01-11 07:04:34,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:34,176 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:34,176 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:34,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 07:04:34,176 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:34,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:34,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1233042858, now seen corresponding path program 1 times [2022-01-11 07:04:34,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:34,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487794518] [2022-01-11 07:04:34,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:34,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:34,210 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 07:04:34,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:34,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487794518] [2022-01-11 07:04:34,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487794518] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:34,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:34,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:34,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114599701] [2022-01-11 07:04:34,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:34,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:34,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:34,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:34,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:34,211 INFO L87 Difference]: Start difference. First operand 5449 states and 8349 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:34,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:34,400 INFO L93 Difference]: Finished difference Result 8733 states and 12682 transitions. [2022-01-11 07:04:34,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:34,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:34,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:34,407 INFO L225 Difference]: With dead ends: 8733 [2022-01-11 07:04:34,408 INFO L226 Difference]: Without dead ends: 5449 [2022-01-11 07:04:34,414 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 07:04:34,415 INFO L933 BasicCegarLoop]: 6279 mSDtfsCounter, 6135 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6135 SdHoareTripleChecker+Valid, 6395 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:34,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6135 Valid, 6395 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:34,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-01-11 07:04:34,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5449. [2022-01-11 07:04:34,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5446 states have (on average 1.5264414248990084) internal successors, (8313), 5448 states have internal predecessors, (8313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:34,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 8313 transitions. [2022-01-11 07:04:34,589 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 8313 transitions. Word has length 165 [2022-01-11 07:04:34,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:34,589 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 8313 transitions. [2022-01-11 07:04:34,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:34,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 8313 transitions. [2022-01-11 07:04:34,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:34,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:34,590 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:34,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 07:04:34,590 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:34,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:34,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1576706551, now seen corresponding path program 1 times [2022-01-11 07:04:34,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:34,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110928395] [2022-01-11 07:04:34,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:34,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:34,650 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 07:04:34,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:34,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110928395] [2022-01-11 07:04:34,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110928395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:34,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:34,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:04:34,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071678466] [2022-01-11 07:04:34,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:34,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:04:34,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:34,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:04:34,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:04:34,653 INFO L87 Difference]: Start difference. First operand 5449 states and 8313 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:35,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:35,189 INFO L93 Difference]: Finished difference Result 9869 states and 14181 transitions. [2022-01-11 07:04:35,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:04:35,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:35,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:35,200 INFO L225 Difference]: With dead ends: 9869 [2022-01-11 07:04:35,201 INFO L226 Difference]: Without dead ends: 6599 [2022-01-11 07:04:35,205 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 07:04:35,206 INFO L933 BasicCegarLoop]: 6443 mSDtfsCounter, 6566 mSDsluCounter, 14269 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6566 SdHoareTripleChecker+Valid, 20712 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:35,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6566 Valid, 20712 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:04:35,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6599 states. [2022-01-11 07:04:35,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6599 to 5455. [2022-01-11 07:04:35,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5452 states have (on average 1.5207263389581804) internal successors, (8291), 5454 states have internal predecessors, (8291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:35,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 8291 transitions. [2022-01-11 07:04:35,441 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 8291 transitions. Word has length 165 [2022-01-11 07:04:35,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:35,441 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 8291 transitions. [2022-01-11 07:04:35,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:35,441 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 8291 transitions. [2022-01-11 07:04:35,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:35,442 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:35,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:35,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 07:04:35,443 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:35,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:35,443 INFO L85 PathProgramCache]: Analyzing trace with hash -2095998838, now seen corresponding path program 1 times [2022-01-11 07:04:35,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:35,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669174416] [2022-01-11 07:04:35,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:35,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:35,503 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 07:04:35,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:35,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669174416] [2022-01-11 07:04:35,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669174416] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:35,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:35,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:04:35,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920639534] [2022-01-11 07:04:35,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:35,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:04:35,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:35,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:04:35,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:04:35,504 INFO L87 Difference]: Start difference. First operand 5455 states and 8291 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:36,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:36,004 INFO L93 Difference]: Finished difference Result 10688 states and 15159 transitions. [2022-01-11 07:04:36,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:04:36,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:36,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:36,015 INFO L225 Difference]: With dead ends: 10688 [2022-01-11 07:04:36,015 INFO L226 Difference]: Without dead ends: 7447 [2022-01-11 07:04:36,020 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 07:04:36,021 INFO L933 BasicCegarLoop]: 6336 mSDtfsCounter, 5723 mSDsluCounter, 16081 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5723 SdHoareTripleChecker+Valid, 22417 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:36,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5723 Valid, 22417 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:04:36,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7447 states. [2022-01-11 07:04:36,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7447 to 5461. [2022-01-11 07:04:36,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5461 states, 5458 states have (on average 1.5150238182484426) internal successors, (8269), 5460 states have internal predecessors, (8269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:36,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5461 states to 5461 states and 8269 transitions. [2022-01-11 07:04:36,301 INFO L78 Accepts]: Start accepts. Automaton has 5461 states and 8269 transitions. Word has length 165 [2022-01-11 07:04:36,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:36,301 INFO L470 AbstractCegarLoop]: Abstraction has 5461 states and 8269 transitions. [2022-01-11 07:04:36,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:36,302 INFO L276 IsEmpty]: Start isEmpty. Operand 5461 states and 8269 transitions. [2022-01-11 07:04:36,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:36,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:36,303 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:36,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 07:04:36,303 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:36,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:36,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1975878965, now seen corresponding path program 1 times [2022-01-11 07:04:36,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:36,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858092127] [2022-01-11 07:04:36,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:36,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:36,358 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 07:04:36,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:36,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858092127] [2022-01-11 07:04:36,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858092127] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:36,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:36,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:04:36,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555648282] [2022-01-11 07:04:36,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:36,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:04:36,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:36,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:04:36,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:04:36,360 INFO L87 Difference]: Start difference. First operand 5461 states and 8269 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:36,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:36,814 INFO L93 Difference]: Finished difference Result 10867 states and 15305 transitions. [2022-01-11 07:04:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:04:36,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:36,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:36,824 INFO L225 Difference]: With dead ends: 10867 [2022-01-11 07:04:36,825 INFO L226 Difference]: Without dead ends: 7627 [2022-01-11 07:04:36,830 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 07:04:36,830 INFO L933 BasicCegarLoop]: 6303 mSDtfsCounter, 5532 mSDsluCounter, 16410 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5532 SdHoareTripleChecker+Valid, 22713 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:36,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5532 Valid, 22713 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:04:36,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7627 states. [2022-01-11 07:04:37,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7627 to 5467. [2022-01-11 07:04:37,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5464 states have (on average 1.509333821376281) internal successors, (8247), 5466 states have internal predecessors, (8247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:37,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 8247 transitions. [2022-01-11 07:04:37,154 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 8247 transitions. Word has length 165 [2022-01-11 07:04:37,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:37,154 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 8247 transitions. [2022-01-11 07:04:37,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:37,154 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 8247 transitions. [2022-01-11 07:04:37,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:37,155 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:37,155 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:37,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 07:04:37,156 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:37,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:37,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1363567052, now seen corresponding path program 1 times [2022-01-11 07:04:37,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:37,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911800862] [2022-01-11 07:04:37,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:37,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:37,212 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 07:04:37,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:37,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911800862] [2022-01-11 07:04:37,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911800862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:37,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:37,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:37,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937158943] [2022-01-11 07:04:37,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:37,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:37,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:37,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:37,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:37,213 INFO L87 Difference]: Start difference. First operand 5467 states and 8247 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:37,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:37,463 INFO L93 Difference]: Finished difference Result 8783 states and 12493 transitions. [2022-01-11 07:04:37,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:37,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:37,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:37,470 INFO L225 Difference]: With dead ends: 8783 [2022-01-11 07:04:37,470 INFO L226 Difference]: Without dead ends: 5467 [2022-01-11 07:04:37,474 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 07:04:37,475 INFO L933 BasicCegarLoop]: 6244 mSDtfsCounter, 6114 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6114 SdHoareTripleChecker+Valid, 6244 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 07:04:37,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6114 Valid, 6244 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:37,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5467 states. [2022-01-11 07:04:37,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5467 to 5467. [2022-01-11 07:04:37,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5464 states have (on average 1.507869692532943) internal successors, (8239), 5466 states have internal predecessors, (8239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:37,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 8239 transitions. [2022-01-11 07:04:37,713 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 8239 transitions. Word has length 165 [2022-01-11 07:04:37,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:37,713 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 8239 transitions. [2022-01-11 07:04:37,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:37,714 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 8239 transitions. [2022-01-11 07:04:37,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 07:04:37,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:37,715 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:37,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 07:04:37,715 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:37,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:37,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1374883179, now seen corresponding path program 1 times [2022-01-11 07:04:37,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:37,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14218765] [2022-01-11 07:04:37,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:37,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:37,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:04:37,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:37,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14218765] [2022-01-11 07:04:37,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14218765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:37,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:37,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:04:37,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981904202] [2022-01-11 07:04:37,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:37,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:37,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:37,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:37,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:37,768 INFO L87 Difference]: Start difference. First operand 5467 states and 8239 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:38,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:38,269 INFO L93 Difference]: Finished difference Result 11900 states and 16480 transitions. [2022-01-11 07:04:38,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:38,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 07:04:38,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:38,279 INFO L225 Difference]: With dead ends: 11900 [2022-01-11 07:04:38,279 INFO L226 Difference]: Without dead ends: 8600 [2022-01-11 07:04:38,284 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 07:04:38,284 INFO L933 BasicCegarLoop]: 6230 mSDtfsCounter, 6036 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6036 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:38,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6036 Valid, 8288 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:38,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8600 states. [2022-01-11 07:04:38,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8600 to 8414. [2022-01-11 07:04:38,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8414 states, 8411 states have (on average 1.4257519914397812) internal successors, (11992), 8413 states have internal predecessors, (11992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:38,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8414 states to 8414 states and 11992 transitions. [2022-01-11 07:04:38,778 INFO L78 Accepts]: Start accepts. Automaton has 8414 states and 11992 transitions. Word has length 165 [2022-01-11 07:04:38,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:38,778 INFO L470 AbstractCegarLoop]: Abstraction has 8414 states and 11992 transitions. [2022-01-11 07:04:38,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:38,779 INFO L276 IsEmpty]: Start isEmpty. Operand 8414 states and 11992 transitions. [2022-01-11 07:04:38,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-11 07:04:38,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:38,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:38,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-11 07:04:38,783 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:38,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:38,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1762438496, now seen corresponding path program 1 times [2022-01-11 07:04:38,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:38,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063436058] [2022-01-11 07:04:38,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:38,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:38,869 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 07:04:38,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:38,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063436058] [2022-01-11 07:04:38,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063436058] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:38,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:38,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:04:38,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759045396] [2022-01-11 07:04:38,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:38,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:38,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:38,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:38,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:38,871 INFO L87 Difference]: Start difference. First operand 8414 states and 11992 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:39,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:39,763 INFO L93 Difference]: Finished difference Result 20685 states and 27683 transitions. [2022-01-11 07:04:39,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:39,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2022-01-11 07:04:39,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:39,786 INFO L225 Difference]: With dead ends: 20685 [2022-01-11 07:04:39,787 INFO L226 Difference]: Without dead ends: 14444 [2022-01-11 07:04:39,798 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 07:04:39,799 INFO L933 BasicCegarLoop]: 6227 mSDtfsCounter, 6080 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6080 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:39,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6080 Valid, 8285 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:39,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14444 states. [2022-01-11 07:04:40,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14444 to 14100. [2022-01-11 07:04:40,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14100 states, 14097 states have (on average 1.3642618996949705) internal successors, (19232), 14099 states have internal predecessors, (19232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:40,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14100 states to 14100 states and 19232 transitions. [2022-01-11 07:04:40,684 INFO L78 Accepts]: Start accepts. Automaton has 14100 states and 19232 transitions. Word has length 268 [2022-01-11 07:04:40,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:40,684 INFO L470 AbstractCegarLoop]: Abstraction has 14100 states and 19232 transitions. [2022-01-11 07:04:40,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:40,684 INFO L276 IsEmpty]: Start isEmpty. Operand 14100 states and 19232 transitions. [2022-01-11 07:04:40,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-11 07:04:40,690 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:40,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:40,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-11 07:04:40,690 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:40,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:40,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1600820512, now seen corresponding path program 1 times [2022-01-11 07:04:40,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:40,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210446572] [2022-01-11 07:04:40,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:40,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:40,750 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 07:04:40,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:40,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210446572] [2022-01-11 07:04:40,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210446572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:40,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:40,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:04:40,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639289767] [2022-01-11 07:04:40,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:40,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:04:40,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:40,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:04:40,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:04:40,752 INFO L87 Difference]: Start difference. First operand 14100 states and 19232 transitions. Second operand has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:42,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:42,350 INFO L93 Difference]: Finished difference Result 35878 states and 47184 transitions. [2022-01-11 07:04:42,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:04:42,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2022-01-11 07:04:42,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:42,381 INFO L225 Difference]: With dead ends: 35878 [2022-01-11 07:04:42,382 INFO L226 Difference]: Without dead ends: 24018 [2022-01-11 07:04:42,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:04:42,399 INFO L933 BasicCegarLoop]: 6225 mSDtfsCounter, 5002 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5002 SdHoareTripleChecker+Valid, 23688 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:42,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5002 Valid, 23688 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:04:42,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24018 states. [2022-01-11 07:04:43,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24018 to 14124. [2022-01-11 07:04:43,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14124 states, 14121 states have (on average 1.356490333545783) internal successors, (19155), 14123 states have internal predecessors, (19155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:43,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14124 states to 14124 states and 19155 transitions. [2022-01-11 07:04:43,402 INFO L78 Accepts]: Start accepts. Automaton has 14124 states and 19155 transitions. Word has length 268 [2022-01-11 07:04:43,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:43,402 INFO L470 AbstractCegarLoop]: Abstraction has 14124 states and 19155 transitions. [2022-01-11 07:04:43,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:43,402 INFO L276 IsEmpty]: Start isEmpty. Operand 14124 states and 19155 transitions. [2022-01-11 07:04:43,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-11 07:04:43,408 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:43,408 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:43,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-11 07:04:43,408 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:43,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:43,409 INFO L85 PathProgramCache]: Analyzing trace with hash -182697570, now seen corresponding path program 1 times [2022-01-11 07:04:43,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:43,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221351656] [2022-01-11 07:04:43,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:43,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:43,469 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 07:04:43,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:43,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221351656] [2022-01-11 07:04:43,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221351656] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:43,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:43,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:04:43,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971707634] [2022-01-11 07:04:43,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:43,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:43,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:43,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:43,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:43,470 INFO L87 Difference]: Start difference. First operand 14124 states and 19155 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:45,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:45,307 INFO L93 Difference]: Finished difference Result 37293 states and 48304 transitions. [2022-01-11 07:04:45,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:45,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2022-01-11 07:04:45,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:45,413 INFO L225 Difference]: With dead ends: 37293 [2022-01-11 07:04:45,413 INFO L226 Difference]: Without dead ends: 25451 [2022-01-11 07:04:45,424 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 07:04:45,424 INFO L933 BasicCegarLoop]: 7657 mSDtfsCounter, 5795 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5795 SdHoareTripleChecker+Valid, 9909 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 07:04:45,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5795 Valid, 9909 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:45,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25451 states. [2022-01-11 07:04:47,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25451 to 25447. [2022-01-11 07:04:47,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25447 states, 25444 states have (on average 1.3074202169470208) internal successors, (33266), 25446 states have internal predecessors, (33266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:47,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25447 states to 25447 states and 33266 transitions. [2022-01-11 07:04:47,332 INFO L78 Accepts]: Start accepts. Automaton has 25447 states and 33266 transitions. Word has length 268 [2022-01-11 07:04:47,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:47,332 INFO L470 AbstractCegarLoop]: Abstraction has 25447 states and 33266 transitions. [2022-01-11 07:04:47,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:47,332 INFO L276 IsEmpty]: Start isEmpty. Operand 25447 states and 33266 transitions. [2022-01-11 07:04:47,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-11 07:04:47,343 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:47,343 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:47,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-11 07:04:47,343 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:47,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:47,343 INFO L85 PathProgramCache]: Analyzing trace with hash 301939261, now seen corresponding path program 1 times [2022-01-11 07:04:47,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:47,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259092483] [2022-01-11 07:04:47,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:47,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:47,381 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 07:04:47,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:47,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259092483] [2022-01-11 07:04:47,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259092483] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:47,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:47,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:04:47,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080963122] [2022-01-11 07:04:47,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:47,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:47,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:47,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:47,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:47,383 INFO L87 Difference]: Start difference. First operand 25447 states and 33266 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:49,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:49,229 INFO L93 Difference]: Finished difference Result 48457 states and 62196 transitions. [2022-01-11 07:04:49,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:49,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 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 268 [2022-01-11 07:04:49,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:49,270 INFO L225 Difference]: With dead ends: 48457 [2022-01-11 07:04:49,270 INFO L226 Difference]: Without dead ends: 25292 [2022-01-11 07:04:49,293 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 07:04:49,294 INFO L933 BasicCegarLoop]: 6228 mSDtfsCounter, 2266 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 10186 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 07:04:49,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2266 Valid, 10186 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:49,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25292 states. [2022-01-11 07:04:51,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25292 to 25292. [2022-01-11 07:04:51,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25292 states, 25289 states have (on average 1.308078611253905) internal successors, (33080), 25291 states have internal predecessors, (33080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:51,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25292 states to 25292 states and 33080 transitions. [2022-01-11 07:04:51,475 INFO L78 Accepts]: Start accepts. Automaton has 25292 states and 33080 transitions. Word has length 268 [2022-01-11 07:04:51,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:51,475 INFO L470 AbstractCegarLoop]: Abstraction has 25292 states and 33080 transitions. [2022-01-11 07:04:51,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:51,476 INFO L276 IsEmpty]: Start isEmpty. Operand 25292 states and 33080 transitions. [2022-01-11 07:04:51,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-01-11 07:04:51,485 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:51,486 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:51,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-11 07:04:51,486 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:51,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:51,486 INFO L85 PathProgramCache]: Analyzing trace with hash -333428232, now seen corresponding path program 1 times [2022-01-11 07:04:51,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:51,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778692926] [2022-01-11 07:04:51,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:51,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:51,538 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 07:04:51,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:51,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778692926] [2022-01-11 07:04:51,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778692926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:51,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:51,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:04:51,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856806011] [2022-01-11 07:04:51,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:51,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:51,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:51,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:51,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:51,540 INFO L87 Difference]: Start difference. First operand 25292 states and 33080 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:55,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:04:55,017 INFO L93 Difference]: Finished difference Result 70842 states and 90147 transitions. [2022-01-11 07:04:55,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:04:55,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 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 269 [2022-01-11 07:04:55,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:04:55,082 INFO L225 Difference]: With dead ends: 70842 [2022-01-11 07:04:55,082 INFO L226 Difference]: Without dead ends: 47832 [2022-01-11 07:04:55,103 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 07:04:55,104 INFO L933 BasicCegarLoop]: 6656 mSDtfsCounter, 6048 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6048 SdHoareTripleChecker+Valid, 8891 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:04:55,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6048 Valid, 8891 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:04:55,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47832 states. [2022-01-11 07:04:58,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47832 to 46644. [2022-01-11 07:04:58,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46644 states, 46641 states have (on average 1.280054029716344) internal successors, (59703), 46643 states have internal predecessors, (59703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:59,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46644 states to 46644 states and 59703 transitions. [2022-01-11 07:04:59,007 INFO L78 Accepts]: Start accepts. Automaton has 46644 states and 59703 transitions. Word has length 269 [2022-01-11 07:04:59,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:04:59,008 INFO L470 AbstractCegarLoop]: Abstraction has 46644 states and 59703 transitions. [2022-01-11 07:04:59,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:04:59,008 INFO L276 IsEmpty]: Start isEmpty. Operand 46644 states and 59703 transitions. [2022-01-11 07:04:59,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-01-11 07:04:59,023 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:04:59,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:04:59,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-11 07:04:59,024 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:04:59,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:04:59,024 INFO L85 PathProgramCache]: Analyzing trace with hash -594617895, now seen corresponding path program 1 times [2022-01-11 07:04:59,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:04:59,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553877868] [2022-01-11 07:04:59,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:04:59,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:04:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:04:59,061 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 07:04:59,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:04:59,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553877868] [2022-01-11 07:04:59,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553877868] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:04:59,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:04:59,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:04:59,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307546551] [2022-01-11 07:04:59,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:04:59,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:04:59,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:04:59,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:04:59,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:04:59,064 INFO L87 Difference]: Start difference. First operand 46644 states and 59703 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:02,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:05:02,835 INFO L93 Difference]: Finished difference Result 90950 states and 115188 transitions. [2022-01-11 07:05:02,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:05:02,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 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 269 [2022-01-11 07:05:02,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:05:02,905 INFO L225 Difference]: With dead ends: 90950 [2022-01-11 07:05:02,905 INFO L226 Difference]: Without dead ends: 46490 [2022-01-11 07:05:02,941 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 07:05:02,941 INFO L933 BasicCegarLoop]: 6227 mSDtfsCounter, 2264 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2264 SdHoareTripleChecker+Valid, 10185 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 07:05:02,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2264 Valid, 10185 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:05:02,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46490 states. [2022-01-11 07:05:06,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46490 to 46490. [2022-01-11 07:05:06,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46490 states, 46487 states have (on average 1.2803364381439972) internal successors, (59519), 46489 states have internal predecessors, (59519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:06,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46490 states to 46490 states and 59519 transitions. [2022-01-11 07:05:06,994 INFO L78 Accepts]: Start accepts. Automaton has 46490 states and 59519 transitions. Word has length 269 [2022-01-11 07:05:06,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:05:06,995 INFO L470 AbstractCegarLoop]: Abstraction has 46490 states and 59519 transitions. [2022-01-11 07:05:06,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:05:06,995 INFO L276 IsEmpty]: Start isEmpty. Operand 46490 states and 59519 transitions. [2022-01-11 07:05:07,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-01-11 07:05:07,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:05:07,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:05:07,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-11 07:05:07,011 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:05:07,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:05:07,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1363729523, now seen corresponding path program 1 times [2022-01-11 07:05:07,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:05:07,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697426231] [2022-01-11 07:05:07,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:05:07,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:05:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:05:07,073 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 07:05:07,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:05:07,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697426231] [2022-01-11 07:05:07,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697426231] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:05:07,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:05:07,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:05:07,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468003486] [2022-01-11 07:05:07,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:05:07,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:05:07,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:05:07,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:05:07,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:05:07,074 INFO L87 Difference]: Start difference. First operand 46490 states and 59519 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)